Corn Cob Briquettes Research Articles

Corn Cob Briquette Processing as One of the Renewable Energy in Margomulyo Village

Margomulyo Village has a fairly large area of rice fields, plantations and dry fields where the majority of commodities are rice and corn. The existence of corn chips as a superior product and icon of village MSMEs can be drawn a line that corn cob waste is also wasteful. Briquettes are one of the waste management options where corn cobs contain high carbon materials. So that it can be used as a source of renewable energy for future needs. The purpose of making corn cob briquettes is to minimize waste disposal from corn cobs in Margomulyo Village.

A study of the calorific power of corncob briquettes, using residual oils as binders

A study of the calorific power of corncob briquettes, using residual oils as binders

Briquettes Of Activated Corncob Charcoal Burning Characteristics

This study aims to find out and analyze the characteristics of briquettes in burning activated corn charcoal. The preparation procedure of this study includes material collection, carbonization, crushing, sifting through an 80-mesh sieve, activation, merging with adhesives, compaction, and drying. Sago powder is used as an adhesive with a mass ratio of 9:1. After being heated separately at 550°C and 650°C for 30 minutes and 20 minutes, the samples were compressed at various pressures. Another difference in compaction pressure also leads to similar results. Untreated corn cob briquettes reach their maximum temperature before activated corn cob briquettes. At an activation value of 550°C for 30 minutes and a compaction pressure of 70.33 kg/cm2, the highest combustion temperature was 528°C. In this study, it can be identified characteristics that can improve the burning efficiency of corn charcoal. This research has implications for better combustion efficiency, can reveal factors that affect combustion efficiency.

Preparation and Characterization of Biomass Briquettes Produced from Coconut Shell and Corncobs

In this work, coconut shells and corncobs were effectively utilized to produce briquettes. The combustion performances of both briquettes with different binders were investigated as fuel. The briquettes were characterized and a water boiling test was carried out. The study revealed that corncob briquettes took a longer time to boil the same quantity of water compared to coconut shell briquettes. Coconut shell briquette produces more quantity of heat than the corncobs briquette. In addition, corncobs briquettes have a higher percentage of ash content than coconut shell briquettes. The volatile matter of Corncobs is 19.30% and 13.33% with starch and Gum Arabic respectively, while for coconut shell is 16.49% and 7.74% with starch and Gum Arabic. Corncobs briquettes have a higher moisture content of 24.24% and coconut shell briquettes has 14.02% whereas the briquettes produced from coconut shell with Gum Arabic has a higher colorific value of 24.04 Kcal/kg. The resistance to water penetration of each of the samples shows that briquettes made with coconut shells have more water penetration resistance with both binders than corncobs briquettes. The higher calorific value of 24.04 Kcal/kg of coconut shell with Gum Arabic implies that the energy in coconut shell particles was greater when compared to corncobs. Hence, it is more preferable to use coconut shell briquettes as solid fuel than corncobs briquettes due to the lower rate of combustion compared to corncobs briquettes.

The effectiveness of tabingga briquettes and corncob briquettes as biocoal

Energy needs and consumption are increasing in line with the increasing human population and increasing community economy. The energy needs and consumption are focused on the use of fuel oil. To minimize the worst possibility of the impact of the use of fossil fuels, one of them is through the development of renewable energy sources. Alternative energy can be generated from appropriate technology by utilizing biomass waste such as tabingga and corncobs which are by products and discharges that have not been much studied for their benefits. The purpose of this study was to determine the effectiveness of tabingga briquettes and corncob briquettes as alternative fuels. This research is an experimental research. The research was carried out from May to August 2019. The objects in this study were the biocoal tabingga and the corncobs biocoal with adhesive variations of 10 grams, 20 grams and 30 grams. The briquette is then printed with a diameter of 5 cm and a height of 7 cm. The results of this study indicate that tabingga briquettes can produce heat temperatures until 89 °C. While corncob briquettes can produce heat temperature until 83 °C.

KARAKTERISTIK BRIKET LIMBAH TONGKOL JAGUNG DENGAN PEREKAT TEPUNG BIJI NANGKA SEBAGAI BAHAN BAKAR ALTERNATIF

Briquette is one of the alternative energy sources as a satisfactory substitute for fossil fuels in which the availability decreases every single day. The main materials of briquettes can be biomass. Biomass is an organic material produced by photosynthetic process, the materials may be product, remnant or waste. One of the potentially great biomass to be used as the main ingredient of briquettes is corncob. This study aims to (1) know the characteristics of corncob briquettes with adhesive jackfruit seed flour including moisture content, ash content, volatile matter and calorific value, (2) know the characteristics of the best corncob briquettes based on SNI standard. Corn cobs were converted first to charcoal with carbonization process, and then the charcoal was mixed with adhesive derived from jackfruit seed flour. In this study, variations of corncob to jackfruit seeds ratios were 90%: 10%, 85%: 15% and 80%: 20%, respectively. Then a mixture of charcoal and flour was molded with a molding pressure variation of 100 kg/cm2 and 120 kg/cm2. The parameters of briquette characteristics based on SNI 01-6235-2000 are moisture content, ash content, volatile matter and calorific value. The results show that the best characteristic briquettes is briquettes with sample code of B1 with charcoal to jackfruit flour ratio of 90% to 10% and printing pressure of 120 kg/cm2. The briquettes have water content characteristics of 7,0073%, ash content of 6,8876%, volatile matter of 17,8983% and calorific value of 6241,8137 cal/gram. But overall, the briquettes have not met the SNI 01-6235-2000 standards because the level of volatile matter in the briquettes exceed the maximum limit that has been determined i.e. 15%.

Empirical model for prediction of density and water resistance of corn cob briquettes

Biomass obtained from agricultural wastes have a high potential for energy generation, particularly in developing countries. The poor properties of the agricultural biomass cause handling problems and limit the suitability as fuel in conventional grates. Densification of biomass into briquettes enhances its fuel properties. In this study, effects of pressure (9, 15 MPa), temperature (90, 120°C), hold time (7.5, 15 minutes) and particle size (< 2.5 mm, > 2.5 mm) on physical properties of corn cob briquettes were investigated using a 2-level full factorial experimental design. A laboratory scale uniaxial briquetting press was used for densification of the milled corn cobs.The properties of briquettes considered are the density, which ranges from 578 to 1,272 kg/m3, and water resistance, which ranges from 32.7 to 94.8%. The empirical models developed for density and water resistance had coefficient of multiple determination for prediction of 80.42% and 95.82% respectively. The significant factors for density of the briquettes were pressure, temperature and particle size. The temperature and particle size along with their interaction was significant in determination of the water resistance. The empirical models predicted experimental data closely.

Empirical model for prediction of density and water resistance of corn cob briquettes

Biomass obtained from agricultural wastes have a high potential for energy generation, particularly in developing countries. The poor properties of the agricultural biomass cause handling problems and limit the suitability as fuel in conventional grates. Densification of biomass into briquettes enhances its fuel properties. In this study, effects of pressure (9, 15 MPa), temperature (90, 120°C), hold time (7.5, 15 minutes) and particle size ( 2.5 mm) on physical properties of corn cob briquettes were investigated using a 2-level full factorial experimental design. A laboratory scale uniaxial briquetting press was used for densification of the milled corn cobs.The properties of briquettes considered are the density, which ranges from 578 to 1,272 kg/m3, and water resistance, which ranges from 32.7 to 94.8%. The empirical models developed for density and water resistance had coefficient of multiple determination for prediction of 80.42% and 95.82% respectively. The significant factors for density of the briquettes were pressure, temperature and particle size. The temperature and particle size along with their interaction was significant in determination of the water resistance. The empirical models predicted experimental data closely.

Comparative analysis of calorific values of selected agricultural wastes

Energy used for domestic application are expensive and beyond the reach of the rural poor. An alternative energy source is therefore a welcome development. This research work was aimed at determining the calorific values of Corn cob, Rice husk and Sawdust agricultural wastes materials. Standard method of calorific value determination involving the use of Bomb Calorimeter was adopted. From the investigation, the calorific value of Rice husk, Sawdust and Corn cob are 2938.86 Kcal/kg, 3155.30 Kcal/kg and 3227.78 KcaI/kg respectively. The agricultural materials were further subjected to briquetting and the calorific values determined to be 2092.48Kcal/kg, 2379.76Kcal/kg and 2923.36Kcal.kg for Rice husk, Sawdust and Corn cob briquettes respectively. The agricultural wastes met the minimum standard calorific value which range from 1500cal/kg – 1670Kcal/kg. The selected wastes have calorific values in the following decreasing order: Corn cob> Sawdust> Rice husk; and the corresponding briquettes is in the order: Corn cob>Sawdust >Rice husk. The selected wastes however, have lesser calorific values when briquetted. If agricultural wastes are used in place of firewood, this development will minimize deforestation which leads to desert encroachment and soil degradation.Keywords: Agricultural waste, calorifuc value, corn cob, Rice husk and saw dust

Effect of densification variables on density of corn cob briquettes produced using a uniaxial compaction biomass briquetting press

ABSTRACTDensification of loose biomass improves its properties for use as fuels. To design efficient briquetting equipment, there is a need to study properties of briquettes under different conditions. In this study, the effects of process variables (pressure, temperature, and hold time) and a material variable (particle size) on the density of corn cob briquettes were investigated. It was discovered that increasing the pressure, temperature, and particle size had positive effects on the density of biomass briquettes. The density of biomass briquettes produced using the selected values of pressure (9, 12, and 15 MPa), temperature (90°C and 120°C), hold time (7.5 and 15 min), and particle size (<2.5 mm and >2.5 mm) ranged between 570 and 1300 kg/m3.

PEMBERDAYAAN MASYARAKAT DESA BULU SUKA KECAMATAN BONTORAMBA MELALUI PEMBUATAN BRIKET TONGKOL JAGUNG SEBAGAI BAHAN BAKAR ALTERNATIF TERBARUKAN

The objective of the student creativity program for the empowerment of the community of the fur village in Bontoramba sub district through the making of corncob briquettes as a renewable alternative fuel in cooperation with the partner ie one of the fur village communities like Bontoramba district Jeneponto district is to improve the knowledge of the village fur village like Bontoramba district Jeneponto regency processing corn waste (corn cobs), to utilize corn cobs as alternative fuel in improving the welfare of the community, to improve skills and change the behavior of the village fur village like Bontoramba district Jeneponto district in applying the technology of making corn cob into alternative fuel. The problems faced by the community and partners are the number of unused corn stalks that become waste that can disrupt the environmental balance, the limitations of non-renewable fuel while the people's need for fuel is high, the lack of knowledge and skills of the community in applying the technology of the process of taff corn to alternative fuel. Therefore, the method of implementation carried out in this activity was (1) presentation, (2) demonstration, (3) direct practice by the community. The result of this activity is improving the knowledge and skills of the fur village community like Bontoramba district Jeneponto district, the creation of corn cob briquette product, the publication on the mass media

Determination of the Heating Ability of Coal and Corn Cob Briquettes.

In this work briquettes of coal and corn cob were produced. The different briquette samples produced were made by blending various compositions of coal and corn cob in the following ratios of 100:0, 80:20, 60:40, 40:60, 20:80 and 0:100 using bitumen as a binder and calcium hydroxide as the desulphurizing agent. The briquettes were produced mechanically using a manual briquetting machine with pressure maintained at 5MPa. The results of the proximate analysis showed that the different compositions of the briquettes had reasonable calorific value but that 60% coal:40% corn cob briquettes with following values for ash content 20.17 %, fixed carbon 44.83 %, moisture content 2.50 %, density 0.414 g/cm 3 , volatile matter 32.50 %, porosity index 48.12 %, calorific value 124.45 KJ/kg, water boiling test 2.10 mins, ignition time 29.56 secs, burning time 19.76 mins and sulphur content 7.56 % exhibited optimum combustible quality when compared with other compositions of briquettes produced.

Comparative Thermal Analysis of the Properties of Coal and Corn Cob Briquettes

The work involved the production of smokeless briquettes of various compositions from coal and corn cob using CaSO4 and starch as binders, while Ca(OH2) was used as desulphurizing agent. The briquettes were produced in the following ratio of coal and rice husk such as 100:0, 80:20, 60:40, 40:60, 20:80 and 0:100 respectively. The proximate analyses of the raw coal sample yielded the following: ash content 12.56%, moisture content 7.03%, volatile matter 39.21%, fixed carbon 41.2% and calorific value 117.18 KJ/g. The corn cob gave the following values, ash content 12.56%, moisture content 7.03%, volatile matter 39.21%, fixed carbon 41.2% and calorific value 61.46 KJ/g. The prepared briquettes were sun dried for seven days, subjected to various tests to assess their fuel quality. Of the briquettes produced, the 80% coal: 20% corn cob briquettes produced using starch as binder had the following values; ash content 21.70%, fixed carbon 45.01%, moisture content 2.87%, density 0.482 g/cm 3 , volatile matter 30.42%, porosity index 40.12%, calorific value 153.23 KJ/g, water boiling test 1.65 minutes, burning time 24.42 minutes, ignition time 41.22 seconds and sulphur content 6.05%. For briquettes produced with CaSO4 as binder, 80% coal: 20% corn cob had the following values; ash content 27.69 %, fixed carbon 41.63 %, moisture content 2.77 %, density 0.503 g/cm 3 , volatile matter 27.91 %, porosity index 41.11 %, calorific value 134.46 KJ/g, water boiling test 1.71 mins, ignition time 41.40 secs, burning time 25.91 mins and sulphur content 7.42 %. The briquettes showed improved properties but with regards to combustible property, the briquettes made using starch as binder do have better qualities than those of produced with CaSO4 as binder.

The Effects of Some Processing Parameters on Physical and Densification Characteristics of Corncob Briquettes

Corncobs are generated from maize (Zea mays). The residue is usually dumped and flared on the farms, where it constitutes fire, environmental and health hazards. Corncobs are potential feedstock for energy generation. This work investigated densification characteristics of corncobs. Corncobs were collected from farm dump at a moisture content of 10.96 dry bases, reduced and sieved into three particle sizes S1, S2; and S3. Starch mutillage of 20, 25, and 30 % by weight of the residue was added as binder. The briquettes were produced using briquetting machine at pressures of 2.1, 4.2 and 6.6 MPa. The ASAE standard methods were used to determine the moisture contents and densities of the milled residues and briquettes. The compaction, density and relaxation ratios as well as percentage expansion of the briquettes were determined using ASAE standard methods. The mean moisture content of the corncob residue was 9.64 %, while that of relaxed briquettes was 7.46%. The value of bulk densities of the residue materials was 50.32 kg/m3. The initial, maximum and relaxed densities ranged from 151-235 kg/m3; 533-981kg/m3 and 307-417kg/m3 respectively. The compaction ratio ranged from 2.27 to 6.50. The maximum percentage volume reduction was 626%, while the axial and lateral relaxations were in the range of 0.62-9.85% and 0.64-3.63 respectively. The briquettes were stable up to six months. For the three processing parameters examined, binder ratio B1, particle size S3 and pressure P3 exhibited most positive attributes.

Densification characteristics of corn cobs

Corn cobs are potential feedstocks for producing heat, power, fuels, and chemicals. Densification of corn cobs into briquettes/pellets would improve their bulk handling, transportation, and storage properties. In this study, densification characteristics of corn cobs were studied using a uniaxial piston-cylinder densification apparatus. With a maximum compression pressure of 150 MPa, effects of particle size (0.85 and 2.81 mm), moisture content (10 and 20% w.b.), and preheating temperature (25 and 85 °C) on the density and durability of the corn cob briquettes (with diameter of about 19.0 mm) were studied. It was found that the durability (measured using ASABE tumbling can method) of corn cob briquettes made at 25 °C was 0%. At both particle sizes, preheating of corn cob grinds with about 10% (w.b.) moisture content to 85 °C produced briquettes with a unit density of > 1100 kg m -3 and durability of about 90%.