Briquetting Technology Research Articles

Insight into emission reduction effect of coal and biomass mixed briquette fuel

The use of coal and biomass as fuel is still the dominant method for domestic heating and cooking worldwide, particularly in rural areas, leading to degenerate atmospheric quality and human health. Briquette technology is regarded as an efficient way to suppress pollutant emissions from solid fuel combustion. In this study, a novel method for coal briquette (for both bituminous and anthracite) is presented in which biomass is added as an additive (0–30%) in producing clean coals. The comprehensive evaluations of these briquettes were done by measurements of the major pollutants, including particulate matter (PM), elemental and organic carbon (EC and OC), inorganic ions, volatile organic compounds (VOCs), and polycyclic aromatic hydrocarbons (PAHs). Emission factors (EFs) for fine PM (PM2.5) and total carbon exhibited similar ranks between all coal groups, while the bituminous group yielded relatively higher EFs for the pollutants. The briquette technology showed a certain reduction effect in the bituminous group. The emission of coals, biomass, and their briquettes showed a substantial difference (>0.75) according to the coefficient of divergence. The EFs for total VOCs in bituminous, anthracite, and biomass groups ranged from 4.53 ± 0.45–23.4 ± 3.84, 0.68 ± 0.02–5.05 ± 0.02, and 140 ± 1.02 g/kg, respectively. An obvious watershed occurred in bituminous briquette with 15% biomass-added that increased emission beyond the additive amount, which highlighted the importance of mixing ratios for emission reduction. Compared to estimated emissions, the mix of biomass and coals through the combustion process released inorganic and organic species with different levels than the direct biomass and anthracite combustion emission, and around 15% is the suitable amount of biomass added to achieve the desired effect. The key findings of briquette technology provide an effective way for solid fuel combustion to alleviate the associated negative impacts and promotion value in developing regions, especially in rural areas.

EFFECT OF PROCESSING TECHNIQUES ON FUEL BRIQUETTES

Densification of agroforestry biomass for energy production has positively impacted the energy sector across the globe. Wood fuel consumption has led to deforestation and degradation. Recently, much has been discussed on biomass briquetting technologies and their influence. However, knowledge about appropriate technique for briquetting to achieve high-quality briquettes is yet to be explored. Thus, efforts were made to critically evaluate briquetting techniques on briquettes’ combustion performance properties. The Water Boiling Test was used in the determination of various parameters. High (screw press); and low (drum agglomerator and hand making) pressure briquetting techniques were distinctly different in ignition time (minutes), time to boil (minutes) burning rate (g/min), specific fuel consumption (g/ml) and power output (kW) values as (1.3,1.0,0.9; 14, 12, 11: 0.8, 1.1, 1.3; 0.11, 0.13, 0.15; and 1.8, 1.4, 0.75). Briquetting technology, based on pressure, is thus a factor that influence performance properties of briquettes. This knowledge is therefore useful when converting waste biomass into briquettes as alternate energy source towards realization of Sustainable Development Goal #7 on affordable and clean energy.

Synthesis of coal-biomass blended fuel through coal-wet briquetting technology

Synthesis of coal-biomass blended fuel through coal-wet briquetting technology

ANALYSIS OF FIXED CARBON AND VOLATILE MATTER BRIQUETTES OF PINE SAWDUST AND COCONUT SHELL WASTE

Briquetting technology became one appropriate method that can be used to convert biomass waste into a renewable energy source. Sources of biomass raw materials that have promising potential are pine sawdust and coconut shell waste. Sawdust has potential for about 0.78 million m3/year and coconut shell waste around 360 thousand tons/year. The research aim was to analyse the effect of the carbonization temperature to volatile matter and fixed carbon of briquette. The research was done by variating carbonization temperature at 400 oC, 500 oC, and 600 oC. The result showed that at carbonization temperature of 400 oC, the volatile matter and fixed carbon was 42.28% and 55.74%. The volatile matter and fixed carbon are 43.19% and 54.96%, found at carbonization temperature 500 oC. The highest fixed carbon 55.98% and the lowest volatile matter 42.19% was found from carbonization temperature at 600 oC. The carbonization temperature in briquetting process affects the volatile matter and fixed carbon of briquette.

Hot Briquetting Technology for Ferrous Metal Waste in Molds with Movable Matrix

The paper describes the technology of hot briquetting of structurally heterogeneous metalworking waste in molds with a movable matrix, which differs from known analogues in the possibility of improving the quality of briquettes with a minimum number of preparatory operations. The aim of the work is to improve the process of hot briquetting. The tasks to be solved are to develop a technological scheme and a physical and mathematical model of the process, reduce the forces of contact friction and tool wear, and optimize the energy-power parameters according to the criteria for the density and strength of briquettes. The technological scheme of briquetting is represented by a mold with a movable matrix, in which compressed air is used as an elastic support. During the briquetting process, the matrix and the pressed metal move in the same direction. The lateral friction force is active, directed towards the briquetting force. As a result, the force and work of briquetting, mold wear are reduced, and the briquette itself is of high quality – uniform in density and without internal defects.As a result of the numerical calculation of the model, the dependences of the stress state of the pressing and pressing pressure on the coordinates and density on the contact surfaces and in the depth of the material were obtained, which makes it possible to calculate the strength of the mold parts and select equipment for the briquetting process. The regularities of formation of the briquette structure are studied, the advantages of using the proposed technological scheme in comparison with briquetting in a fixed matrix are shown. The proposed technology eliminates the implementation of the preliminary operation of coolant removal by centrifugation or other known methods. Coolant is removed by thermal sublimation, partially burned in the furnace firebox, partially condensed in the “wet” cleaning system.

Examination of long-time aging process on volatile organic compounds emitted from solid fuel combustion in a rural area of China

Volatile organic compounds (VOCs) emitted from solid fuels combustion (e.g., biomass and coal) are still the dominant precursors for the formation of tropospheric ozone (O3) and secondary organic aerosols (SOAs). Limited research focused on the evolution, as known as atmospheric aging, of VOCs emitted during long-timescale observations. Here, freshly emitted and aged VOCs from common residual solid fuel combustions were collected onto absorption tubes before and after passing through an oxidation flow reactor (OFR) system, respectively. The emission factor (EF) of freshly emitted total VOCs is in descending order of corn cob ≥ corn straw > firewood ≥ wheat straw > coals. Aromatic and oxygenated VOCs (OVOCs) are the two most abundant groups, accounting for >80% of the EF of total quantified VOCs (EFTVOCs). Briquette technology shows an effective reduction of the VOC emission, demonstrating a maximum 90.7% lower EFTVOCs in comparison to that of biomass fuels. In contrast, each VOC shows significantly different degradation in comparison to EF of freshly emitted and after 6- and 12-equivalent day aging (actual atmospheric aging days calculated from aging simulation). The largest degradations after 6-equivalent days of aging are observed on alkenes in the biomass group (60.9% on average) and aromatics in the coal group (50.6% on average), consistent with their relatively high reactivities toward oxidation with O3 and hydroxyl radical. The largest degraded compound is seen for acetone, followed by acrolein, benzene, and toluene. Furthermore, the results show that the distinction of VOC species based on long-timescale (12-equivalent day aging) observation is essential to further explore the effect of regional transport. The alkanes which have relatively lower reactivities but high EFs could be accumulated through long-distance transport. These results provide detailed data on fresh and aged VOCs emitted from residential fuels which could be used to explore the atmospheric reaction mechanism.

Optimization of briquetting technology of fine-grained metallurgical materials based on statistical models of compressibility

This paper represents the study of the briquetting process optimization of metallurgical charges. A new measure of briquettes' quality – the compression intensity factor, is developed. Using the design of experiments, the nonlinear relationships are established of given factors: the content of plasticizer and moisture, hardness of the particles, dynamic viscosity of the liquid binder, amount of carbonaceous component and the average particle size in the charge. The adequateness of the models was estimated. It is shown that the greatest influence on compressibility has the hardness of the particles while the dynamic viscosity of the liquid binder has a minimum effect. An effective way to control the briquetting process is to change the content of the plasticizer and moisture. In the case of iron‑carbon mixtures, it is necessary to control simultaneously the content of carbonaceous material and the particle size of both components. The article provides detailed recommendations on results implementation. • The cold-bonded briquetting is an eco-friendly technology of fine-grained metallurgical charges agglomeration. • A new indicator for the fine fractions compression evaluation is developed based on the original equation. • Statistical models of compressibility are obtained using a three-level design of experiment plans. • Models are optimized by response surface analysis and the method of indefinite Lagrange multipliers. • Optimal technological modes for the metallurgical charges briquetting are formulated.

Development and Experimental Investigation of Briquetting Machine for Use in Rural Area

Biomass is an organic matter such as agricultural crop residues, forest plant materials and animal wastes used as animal fodder, domestic fuel energy source in India. The briquetting technology is the extrusion process of various biomass materials to produce briquettes as a biofuel substitute for fuel wood, coal and charcoal. Mahua (Madhuca Indica) seeds oil extraction plant have waste known as mahua deoiled cake (Doc) is major forest biomass and is locally available in southern parts of Gujarat. The development of an efficient and low-cost screw press type briquetting machine appropriate for rural peoples of developing countries was carried out. The four combinations with different proportions of raw biomass such as mahua seed deoiled cake, coal, rice husk and grass were used to produce briquette C1 (70:10:10:10), C2 (50:20:20:10), C3 (100:0:0:0), and C4 (50:0:50:0), respectively. The properties of briquettes were determined as the density of briquettes, shatter resistance, tumbling resistance, water retention test and calorific value. The highest resistance to water penetration was observed for combination C1 briquettes as 52.20% because mahua Doc has less porosity and high density. Combination C4 briquettes were observed for a maximum degree of densification and maximum energy density ratio as 31.37% and 1.1, respectively. Tumbler resistance and shatter resistance were observed maximum for combination C1 as 86.70% and 99.82%, respectively which comprises 70% mahua Doc, 10%, coal, 10% rice husk and 10% grass. A high calorific value was found 3946.43 kcal/kg in combination C3 (100:0:0:0) because briquette made of 100% mahua Doc. The addition of Mahua Doc matter in the briquette was found better results as an increase in calorific value, water retention, shatter and tumbling resistance.

Techno-Economic Viability Assessment of a Household Scale Agricultural Residue Composite Briquette Project for Rural Communities in Nigeria

This study evaluated the technical and economic viability of a household scale composite briquette project. The objectives were to assess the quality of briquettes, estimate the cost of production, and determine the feasibility of the project. Briquettes were made from a blend of corncobs and the bark of oil palm trunk using a manual press. Production cost was estimated from the market price of commodities and specific economic indicators were used for feasibility analysis. Sensitivity analysis was performed on some essential input parameters that may affect the profitability of the project. Economic analysis revealed that the unit production cost of the briquettes was USD 0.16 per kg. The net present value was USD 6755.91 from the sale of briquettes at USD 0.26 per kg. An accounting profit is possible once briquette sales are above the break-even point of 7329.8 kg. Households could save about 25% from their per-capita expenditure on fuelwood when briquettes are utilized. Overall, the household briquette project is technically and economically viable in Nigeria. The significance of this study lies in the provision of a piece of baseline information to encourage local bio-energy development and serve as a guide for stakeholders in Nigeria with a potential interest in investing in briquette technology.

Fluid Movement Law and Influencing Factors of Shredding on Rice Straw Briquetting Machines

The briquetting technology of rice straw could increase the bulk density of the straw, reduce transportation and storage costs, and improve resource utilization. This paper analyzed the working principle of the air-conveying integrated device in briquetting machines. High-speed photography technology was used to track and record the movement process of crushed straw material in the air-conveying cylinder area. It was compared with the simulation results of the average velocity of crushed straw material to verify the reliability of the simulation. The results showed that the flow of straw scraps in the straw-shredding and air-conveying integrated device was relatively stable when the impeller speed was 630 r/min, the number of blades was three, the blades were tilted back 15°, and the radius of curvature of the air-conveying tube elbow was 700 mm. At the same time, the speed distribution was uniform, and the highest throwing speed reached 4.5 m/s to 4.8 m/s. After optimization, the average increase rate of briquette density was 2.61% and the average increase rate of briquette productivity was 2.52%. The fluid movement law of the straw-shredding and air-conveying integrated device studied in this paper could be used to optimize the air-conveying device, improve the efficiency of straw briquetting and the utilization rate of straw resources.

Experimental Investigation of Briquettes made from Waste Material as Alternate Source of Energy using Low-Cost Briquetting Machine

Briquetting technology is a sustainable solution to air pollution caused by millions of tons of waste generated annually. It converts biomass into briquettes, a renewable energy source from organic materials like wood chips, sawdust, agricultural residues, and household organic waste. These briquettes offer low greenhouse gas emissions and high burning efficiency and are suitable for heating, cooking, and power generation. With abundant agricultural residue and organic waste, India can benefit from adopting biomass briquettes. Briquetting compresses biomass under high pressure, increasing its density and energy content. This process facilitates more accessible storage and transportation, resulting in cleaner and more efficient briquettes. The resulting briquettes reduce carbon dioxide, sulphur dioxide, and particulate matter emissions. Using biomass briquettes also contributes to waste management by utilizing agricultural and organic waste that would otherwise decompose, releasing methane and other greenhouse gases. Briquetting technology supports sustainable development goals, promotes a circular economy, and reduces the environmental footprint.

Likelihood of Adopting Briquette Technology in Abundance of Competitive Energy Sources: A Case Study of Morogoro Urban and Rural Districts, Tanzania

Firewood and charcoal are the primary energy resources in many developing countries, especially in sub-Saharan Africa. However, the unstainable collection and use of these resources negatively impact the environment. Equally, using briquettes as green energy resources can address the energy shortage and conserves the environment. However, the information on people’s preference to use briquettes instead of other alternative energy sources is scarce. Furthermore, studies demonstrating the briquette technology preferences and adoption to prospective users, including youth and women in urban and rural areas, are limited. Therefore, this study was conducted in the Morogoro district to (1) characterise the respondents’ demographic issues useful for evaluation of people's preferences, (2) assess the preference for briquette fuels, particularly for youth and women, and (3) evaluate the extent of using the briquettes as sources of energy as compared to other alternative sources of energy. The household survey involved 330 respondents in urban, peri-urban, and rural areas of Morogoro. The areas were chosen to represent the Tanzania sceneries. Besides, supplementary key informants’ interviews involved village leaders, charcoal retailers and other people with knowledge of briquette technology. The results show that over 95% of respondents preferred to use briquette as an alternative energy source and expressed their willingness to engage in the briquette business. Additionally, the study shows low use of briquettes compared to other energy sources like charcoal and firewood in urban, peri-urban, and rural areas. Furthermore, there was no significant difference between men and women in their willingness to join the briquette business (p-value =0.517). Therefore, a few people are aware of briquette technology. This study recommends increasing the awareness of briquette technology through training youths and women on briquette technology and insisting on the availability of briquette products and stoves. In addition, assessing the factors hindering the briquettes from being a hundred per cent preferred by people is a point of research interest.

Adoption of Briquettes of Organic Matter as an Environmentally Friendly Energy Source in Uganda

Demand for inexpensive alternative fuels and briquettes to bridge the gap between cooking, water heating, and heating production processes has been expanding by the day, due to the current fuel crisis and the ever-increasing costs of electricity and wood charcoal in Kampala and its environs. The goal of this study was to determine the different types of biomass briquettes and associated technology that are available in Kampala. Face-to-face interviews and questionnaires were used to collect data on the numerous varieties of biomass briquettes that are commonly used by Kampala families, as well as the raw materials used by briquette producers. Descriptive statistics techniques were employed. According to the statistics, the most often utilized briquettes in Kampala are stick briquettes, honeycomb briquettes, cylindrical, round, and doughnut-shaped briquettes. While the majority of households continue to use expensive and unreliable energy sources such as wood charcoal, gas, and electricity, using briquettes is less expensive and has the potential to reduce deforestation, minimize waste streams, and reduce indoor air pollution, reduce odors, and increase local job creation. Households that use briquettes lamented a lack of available technology, a lack of equipment for making their own, and a shortage of well-trained or skilled people to assist in waste sorting to gather organic matter for briquette production. It was concluded that carbonized round briquettes are preferred because non-carbonized briquettes are extremely scarce and that a number of factors significantly deterred individuals from investing in biomass briquette technology, including government laxity in providing incentives and a failure to create favorable conditions for individuals to invest in biomass briquette energy production and utilization.

Emission profiles of volatile organic compounds from various geological maturity coal and its clean coal briquetting in China

Coal is a dominant energy source used in household cooking and warming in rural China. Its combustions generate a large quantity of gaseous and particulate phase's pollutants. In between, the volatile organic compounds (VOCs) is a critical class of chemical that shows strong environmental and health impacts. In this study, the VOC emission characteristics, influencing factors and briquette technology that affected the combustions of different maturity coals were investigated. Emission factors (EFs) of targeted non-methane VOCs (EFNMVOCs) for different coal samples ranged from 233 ± 89.8 to 1690 ± 722 mg/kg. The EFNMVOCs decreased with volatile content (VC). Besides, EFNMVOCs for the briquette coals showed 5.31–51.5% lower than that of the raw coals except the anthracite. Alkanes and alkenes are the two most dominated chemical groups, accounting for >50% of the total NMVOCs emissions. Coefficient of divergence (CD) values showed that a significant difference (>0.6) between the emissions of high-volatile and low-volatile raw coals, representing that the coal content should be sub-classified for either source apportionment or emission profile database development. Correlation analysis reported that VC is the most significant factor that correlated with EFNMVOCs (R = 0.78), while modified combustion efficiency (MCE) negatively correlated (R = −0.78). The calculations of ozone formation potentials (OFP) and secondary organic aerosol potentials (SOAP) deducted that alkenes and aromatics are the top two contributors to the formations of these secondary pollutants. In addition, the briquette technology has been proved to reduce both OFP and SOAP from coal combustions. Our results perceptibly support that the use of low VC coals could efficiently reduce the emissions of VOC and the formations of more environmental and health harm substances, and the application of briquetting technology also has a certain effect especially in bituminous coals. The key findings provide feasible solutions to improve regional air quality regarding residential coal combustion in northwest China.

Drivers of household demand for cooking energy: A case of Central Uganda

In Uganda, the total primary household energy consumption is mainly biomass. Lack of empirical information remains a daunting challenge to operationalization of strategies and policies aimed at reducing unsustainable energy use. This study specifically determined household demand for different cooking energy sources (briquettes, charcoal and firewood). Data were collected from a sample of 235 households with the help of pretested structured questionnaires. Data were analyzed using descriptive statistics and Seemingly Unrelated Regression (SUR). From the econometric analysis, results revealed that briquettes demand was significantly influenced by fuel expenditure, briquette price, gender of household head, main occupation and source of fuel. Further, charcoal demand was influenced by fuel expenditure, household size, charcoal price, district and fuel restriction. On the other hand, demand for firewood was influenced by household income, firewood price, fuel expenditure, household size and source of the fuel. From our findings, it is recommended that tailored trainings on sustainable exploitation of biomass resources for energy supply should be conducted across the country. In addition, there is need for such trainings to target women, who are the decision makers with respect to household energy supply. Lastly the study recommends the need for low-cost briquetting technologies that would reduce its price to levels that are competitive to charcoal and firewood.

Toward Adaptation of Briquettes Making Technology for Green Energy and Youth Employment in Tanzania: A Review

Briquette technology is an alternative green energy source to offset the increasing demand for charcoal and firewood to save the forests and the environment while creating employment for youth and women. Using the scoping and realistic review techniques, a review study was conducted to establish the briquette technology’s existence, and its value chain, identify stakeholders and challenges along the value chain and explore the policies supporting the technology and potential employment opportunities for youth in the green energy sector. The review results indicated that the briquette technology value chain consists of sourcing raw materials, production process, distribution, and consumption as its components while transportation, storage or packaging, marketing, and training are its supporting services. In addition, it was found that stakeholders in the value chain are manufacturers, producers, and supporting service providers who differ based on their formalities, such as groups, companies, government organizations, Non-Governmental Organizations (NGOs), institutions, and enterprises. Furthermore, five challenges were identified that impair the briquette adoption. They include the technology, raw materials, and the quality of briquettes, promotion, and marketing. Also, the study found that there are limited policies that provide a conducive environment for briquette technology to flourish. The study concludes that briquette technology exists in Tanzania. However, it is not yet matured as compared to the developed countries, and the technology is not backstopped by existing policies. The study recommends the briquette technology as a viable employment opportunity, especially for youth and women; therefore, the formulated briquette value chain should be utilized for easy coordination of stakeholders and deployment of the technology. Also, there is a need to create awareness and innovative strategies for promoting and engaging more stakeholders in the technology through the policies that explicitly insist on adopting the briquette technology.

Multicomponent Solid Fuel Production Technology Using Waste Water

An assessment is given to the problems of urban wastewater sludge utilization in our country and abroad, with determination of formation and usage level. Global trends in the reduction of carbon dioxide emissions exacerbate the urgency of solving the designated tasks. At the same time, recently, in connection with the EU’s plans to introduce a cross-border carbon levy, it has become necessary to reduce the carbon footprint from burning traditional fuels, which is an urgent problem of modern society. One of the directions that provide a solution to this problem is the replacement of part of the hydrocarbon fuel by the consumption of multicomponent solid fuel based on the use of combustible waste that is part of the multicomponent fuel. This solid fuel can be used to meet the needs of small consumers, for example, in the autumn-summer period to generate a drying agent for the preparation of grain on the threshing-floor, in small boiler houses, in sand drying plants of locomotive depots, heat installations of hangars and workshops, as well as in other heat-generating installations operating on solid fuels. At the same time, solving the problem of reducing the carbon footprint for Belarus is closely related to another urgent task – reducing the energy component of industrial products and the environmental consequences of storing accumulated and generated waste. The paper presents the results of joint scientific research in the field of application of modern technologies and equipment using electrohydraulic treatment to reduce and minimize the level of anthropogenic and polluting substances in wastewater sludge. The described technological equipment, technology and post-treatment modes reduce the content of harmful substances in the wastewater sludge composition even with short-term treatment. An assessment of the effectiveness of the developed technology for the use of sewage sludge is given, using the method of wet multicomponent briquetting to obtain a multicomponent fuel. The presented process flow diagram of multicomponent briquetting using sewage sludge and plant-wood waste directly shows the undeniable advantages of using watered wastewater sludge as a raw material for the production of solid fuel. At the same time, the optimally selected ratio of components and moisture content of the briquetted composition solves a number of technologically difficult problems that cannot be realized using traditional briquetting technologies. The presented data of the conducted research and the developed technology make it possible to expand the area of using wastewater sludge as a secondary renewable material resource.

Fuel Briquettes from Sal (Shorea robusta) Forest Litter as an Alternative Cooking Fuel

Sal (Shorea robusta) forest leaf litter strongly influences seed germination and seedling survivorship. Therefore, it is crucial to open up the litter layer in such a forest with abundant leaf litter. Briquetting of Sal forest leaf litter can be an option for its management and meet the increasing energy demand. This research work is performed to quantify the amount of Sal forest litter and study the briquette’s combustion properties. The study was carried out in the Namuna Community Forest of Jhapa district. The average weight of leaf litter in the field was observed to be 851 g/m2 . Five varieties of briquettes were produced using different briquetting technologies. Proximate analysis results, calorific value and water boiling tests show these briquettes have good fuel characteristics and can be used as alternative cooking fuel.

Nanofractals and briquetting technology

The formation of six enclaves in the condensed matter physics and material science has become visible for the last 25 years. These are “nano”, “fractals”, “low dimensional systems”, “chirality”, “hierarchy” of structures and “synergetics”, as well as their combinations. The first five ones characterize the properties of objects and the latter - the experimental conditions. Presently, we can talk about so-called “nanofractals” and their aplication in technology substantiated by the authors of this work. The problems of briquetting technology are considered from the perspective of one of the aspects of “complexity” - nanofractals. Their adequate application has been carried out for the production of technical silicon using a briquetted charge.

Briquetting of the fine-grained energy-source products

The activities of the coal industry lead to the inevitable accumulation of waste. During extraction and dressing of coal, its in-mine transportation and storage, a large number of fine-grained and pulverized coal products are formed. Man-made fills of coal waste occupy large areas of land and have a negative impact on the environment habitat. On the other hand, this waste contains large energy-source reserves. The use of such fine and pulverized coal is difficult. At the same time, such characteristics of coal waste as: ash and sulfur contents, heat of combustion, volatile matter allow us to establish their prospects for the use as a full-fledged household fuel. There are many other kinds of combustible waste. These are solid agricultural residues (straw from grain crops, sunflower stems and husks, corn cobs, etc.), wood processing wastes (sawdust, pruning from the processing of primary wood, parquet dust, etc.). It is possible to obtain a product with wanted properties from lowgrade but energy-potential raw materials using briquetting technology. The results of research into technological development of briquetting fine-grained energy-source materials of different physical nature, structure, composition and properties are summarized. The outcomes of the technical analysis and comparative burning of fuel briquettes are given. In terms of quality, the fuel briquettes obtained meet the regulatory and consumer requirements. The involvement of fine-grained and pulverized coal waste and wood-plant products in the fuel balance will enable production of additional fuel, utilization of unclaimed carbon-containing waste, increase of combustion efficiency of such waste and reduction in the environmental pollution.The study was supported by the Southern Federation University, Ministry of Science and Higher Education of the Russian Federation, Project VnGr-07/2020-04-IM in 2020.