HDPE Plastic Research Articles

Comparison of Composite Quality from PP Plastic with Recycled HDPE Through The Screw Extruder Process

This study examines the composite quality of PP and HDPE plastic waste materials using Microfiber Oil palm empty fruit bunches (OPEFB) as filler, the fiber used is 90 µm. The ratio of matrix: filler used is 60:40 and 70:30 for each type of PP and HDPE polymer. The method used is a melt blending screw extruder, where plastic and fiber materials are dissolved with a compatibilizer and then melt blended in an extruder by providing temperatures of 160 and 170 oC. Tensile tests showed the strength of the PP composite with a filler ratio of 60:40 and 70:30, respectively, of 313.25 N and 336.35 N, while the HDPE composite with a filler ratio of 60:40 and 70:30, respectively are 392.93 N and 187.90 N. The maximum force required to break HDPE composites reaches 21.10 Mpa while for PP composites it reaches 18.56 Mpa. From the morphology of the PP and HDPE composite samples, the overall surface structure of HDPE looks regular with a width from 1 to 13.5 mm. The PP composite shows a uniform and regularly arranged surface structure and the bond between the fibers and the filler looks more compatible but the surface pores are rougher. Heat resistance can be seen from the melting point of PP composites which can reach 163.81oC while HDPE composites only reach 134.21oC.

Environmental footprint of voltammetric sensors based on screen-printed electrodes: An assessment towards “green” sensor manufacturing

Voltammetric sensors based on screen-printed electrodes (SPEs) await diverse applications in environmental monitoring, food, agricultural and biomedical analysis. However, due to the single-use and disposable characteristics of SPEs and the scale of measurements performed, their environmental impacts should be considered. A life cycle assessment was conducted to evaluate the environmental footprint of SPEs manufactured using various substrate materials (SMs: cotton textile, HDPE plastic, Kraft paper, graphic paper, glass, and ceramic) and electrode materials (EMs: platinum, gold, silver, copper, carbon black, and carbon nanotubes (CNTs)). The greatest environmental impact was observed when cotton textile was used as SM. HDPE plastic demonstrated the least impact (13 out of 19 categories), followed by ceramic, glass and paper. However, considering the end-of-life scenarios and release of microplastics into the environment, ceramic, glass or paper could be the most suitable options for SMs. Amongst the EMs, the replacement of metals, especially noble metals, by carbon-based EMs greatly reduces the environmental footprint of SPEs. Compared with other materials, carbon black was the least impactful on the environment. On the other hand, copper and waste-derived CNTs (WCNTs) showed low impacts except for terrestrial ecotoxicity and human toxicity (non-cancer) potentials. In comparison to commercial CNTs (CCNTs), WCNTs demonstrated lower environmental footprint and comparable voltammetric performance in heavy metal detections, justifying the substitution of CCNTs with WCNTs in commercial applications. In conclusion, a combination of carbon black or WCNTs EMs with ceramic, glass or paper SMs represents the most environmentally friendly SPE configurations for voltammetric sensor arrangement.

Performance of Sustainable Concrete Containing HDPE Plastic Wastes as Coarse Aggregate: Minor Review

Many experimental studies had made by the researchers to investigate the properties of concrete with different types of plastic wastes as coarse aggregate or as fibres. This research focuses on the studies dealing with High Density Polyethylene HDPE plastic type as coarse aggregate in concrete and making a summary of the most important findings from these studies. All the experimental works stated in these studies showed a decrease in flexural strength, splitting strength and flexural strength. The results also showed that there is a clear decrease in the thermal conductivity which leads to improve thermal insulation of concrete.

Extended exergy sustainability analysis comparing environmental impacts of disposal methods for waste plastic roof tiles in Uganda

The world is facing an increasingly dire plastic waste crisis that affects people in developing countries disproportionately more than those in industrialized nations. To compare the environmental effects of end of life disposal and recycling options for plastic/sand roof tiles in Uganda, we use an extended exergy analysis (EEA) to quantify the resources used in the disposal process, the resources saved from replaced virgin materials by recycling, and any additional resources needed to bring the tiles, byproducts, and pollutants to an environmentally acceptable end state. We evaluated disposing of waste plastic/sand roof tiles through open burning, burying, landfilling, pyrolyzing, incinerating in cement kilns, mixing into asphalt to pave roads, and recycling into plastic pavers. With a net exergy avoided of 16,462 MJ/tonne of tiles, mixing the waste plastic/sand tiles into asphalt roads proved to be the best option followed by pyrolysis with 11,303 MJ/tonne of net exergy avoided (including remediation). Recycling the tiles into pavers also saved net exergy while burying, landfilling, and incinerating all had negative net exergy values showing that inputting some thermal energy to recycle waste can add value and save net resources. We determined it is not practically feasible to bring all of the pollutants from open burning to an environmentally acceptable end state with the limited technology available in Uganda. However, the method we recommend for remediating CO2 by planting trees requires only 0.7% of the exergy used in CO2 scrubbers currently used in developed countries. Such an empirical study focusing specifically on plastic products and disposal options feasible in developing countries has not been done before, so our paper can be useful to policy makers, multilateral organizations, and NGOs making decisions about solid waste management practices in less-industrialized nations. The results from this paper are valid for HDPE, LDPE, and PP plastics but not for PET or PVC.

Experimental study on catalytic pyrolysis of plastic waste using low cost catalyst

Energy generation and utilization become an index of country development. The currently using conventional energy sources are depleting at faster rate, thereby researchers are searching for a viable alternative to generate the energy. The source should be compatible with the existing engines to run and sustain eco-balance. The two severe problems facing across the world are continuous raise of plastic usage and depletion of fossil fuels. The major hurdles with the plastic waste are disposal and recycling. The disposal for land filling may cause soil contamination, environmental disturbance due to incineration both are leads to social resistance. Pyrolysis is the one effective solution to resolve the plastic waste disposal is converting the energy a Though, pyrolysis is an effective approach to extract fuel oil from waste plastic, it suffers from expensive of catalysts. In the present work, an attempt has made to address it by utilizing low cost catalyst like fly ash for pyrolysis of HDPE and LDPE plastic. Experiments were conducted on pyrolysis unit by varying the mass fraction of catalyst at 5%, 10% and 15%. It is observed that yield of maximum at 5% and it is decline with the further addition of catalyst. In contra, increase in mass fraction of catalyst reduces the reaction temperatures as well as retention times. The physiochemical properties of collected oil were measured and compared against the diesel and gasoline fuels bides in polymerized links into usable form. It offers dual solution in environmental aspects and addressing the verge fossil fuels.

Effect of wood particle size on the water absorption of wood-plastic composites

The main aim of this paper is to present the research findings which come out from the experimental determination of the influence of input raw material properties and composition on the water absorption of wood-plastic composites. During the WPCs production, important raw material parameters such as wood sawdust particle size, wood/plastic concentration ratio or type of plastic matrix can be recognized. In this research study, the aim was to produce WPCs of an acceptable and competitive level of quality which is determined from the final mechanical properties of WPCs. Particle size of wood sawdust used for production of WPC has significant influence on mechanical properties of composites and also on other important properties (water absorption, hardness, frost resistance, etc.). Using a variety combination of influencing variables the final quality of composites and also the operating parameters of the injection molding press can be improved. Their effect can be seen from the quality indicators and from the operating parameters of the injection press which has a direct impact on the production costs. The paper deals with the determination of the impact and the relationship between the input wood sawdust particles sizes, wood/plastic concentration ratio and water absorption of composites. By side intention of authors is to determine the possibilities of waste raw materials usage. The experimental research findings were obtained using a semi-operational injection molding press where the injection is provided by a working screw. As the input raw material, spruce sawdust, HDPE plastic matrix and recycled HDPE, represented by lids from PET bottles, was used. The effect of the input wood sawdust particle size on water absorption was determined according to a combination and default levels of wood/HDPE concentration ratio, using recycled HDPE instead of virgin HDPE and particle size of wood sawdust.

Making of nusantara decorative motif creations necklace based on hdpe on type plastic waste

The problem of HDPE plastic waste from thick inorganic household waste that is difficult to destroy can damage the environment, the need for the utilization of HDPE plastic waste into products that are beneficial to humans. The purpose of this study was to determine the results of ornamental motif necklaces in the archipelago in accordance with the provisions of the aesthetic theory derived from HDPE plastic waste material that produces good quality so that it can attract consumers as users. The method used is a qualitative method based on the collection of literature data and information from the opinions of experts in their field of accessories to provide input or to the archipelago creation creations based on product theory and aesthetics. The results obtained are necklace products that have design elements derived from decorative motifs of the archipelago (Kawung and Tumpal) made from HDPE plastic waste that have benefits in fashion. The conclusion from the analysis based on theory and accessory expert opinion on the archipelago ornamental motif necklace especially kawung motif made from HDPE plastic waste can produce necklace creations that have good aesthetics and quality so that they can attract attention. consumers as users.

Optimalization HDPE Pipe Raw Material Using Simulation Model in PT. X

PT. X is an industrial company engaged in the production of pipes. In producing HDPE pipes, the company uses various raw materials ordered from foreign suppliers. The raw material needed in the HDPE pipe production process is HDPE plastic seeds. The company orders raw materials to meet existing demand, inventory stocks often experience differences with demand and orders are made if there is not enough supply to meet demand, Shipments of materials in containers via sea transport with a square off time of 1 month. In practice the number of orders is determined based on the number of requests in 1 month. In this study the method used is a simulation to determine the optimal HDPE raw material order quantity with total inventory cost (Total Cost Inventory) as a comparison, the order size determination is also carried out using the probabilistic EOQ method. The optimal order size with the Q system for a reorder point of 60,000 kg is 80,000 kg and a total inventory cost of 378,465,389, -.

Kajian Terhadap Migrasi Plastik Hasil Induksi Panas pada Beberapa pH dan Jenis Asam Organik

In Indonesian street food vendor, most of hot acidic food and drinks are served with plastic packaging and plastic cutlery. This research is aimed to study about the presence of plastic’s component migration as a result of heat induction in the presence of various pHs and organic acid, and to identify the types of migrated plastic components through its functional groups. In this research, the samples were 10 plastic packaging and cutlery made from LDPE, HDPE, PP, PE, and PS plastic. Acetic acid, citric acid, and lactic acid and three levels of pH which were pH 4, 5, and 6. Temperatures of 80 and 100 ? were used as representation of food and drinks served warm. Each samples were conditioned in each organic acids solutions with different pH (pH 4, 5, and 6) and thermal treatments were carried out for 1 hour in each temperature. The plastic migrations were detected using UV-Visible spectroscopy, followed by FTIR spectroscopy to identify functional groups of the migrated plastic components, followed by prediction of the migrated compound. The results suggested that plastic component migration were detected in all samples, and using lactic acid pH 4, 5, and 6 an antistatic diethanolamides was ruled plausible released from white plastic glass sample.
 Keywords : plastic migration, organic acids, pH, spectroscopy, temperature.

Life cycle assessment of plastic grocery bags and their alternatives in cities with confined waste management structure: A Singapore case study

Plastic grocery bags are one of the most ubiquitous single-use packaging products. Recently, ‘eco-friendly’ options of plastic grocery bags have gained traction such as kraft paper, cotton, biodegradable, and reusable polypropylene non-woven bags. However, the impact of using various grocery bags in cities with dense population, well-developed infrastructure and thermal treatment as an end-of-life waste management option has been insufficiently documented. In this study, commonly found single-use (HDPE, biodegradable plastic, kraft paper) bags and reusable (cotton, polypropylene non-woven) bags were considered for the life cycle assessment (LCA). The usage characteristics (reusability, dimensions, carrying capacity) of bags, the production process (raw materials extraction, production processes), and emissions were determined as the significant factors contributing to the negative environmental impacts. In a model city with confined waste management, the assessment determined that the reusable polypropylene non-woven bag (PNB) caused the least overall negative environmental impacts when there are 50 instances of reuse, followed by single use HDPE plastic bag (HPB). The global warming potential (excluding biogenic carbon) was 14, 81, 17 and 16 times higher for HDPE plastic, kraft paper, cotton woven and biodegradable polymer bags, respectively, when compared to PNB. Moreover, kraft paper or cotton woven bags demonstrated the highest negative impacts for the impact categories including abiotic fossil depletion, freshwater-, marine- and terrestrial-ecotoxicities, human toxicity, acidification and eutrophication potentials. Further, sensitivity analysis indicated that the inflexion point for the PNB was minimum 4 reuses to avoid emission equivalent to the HPB. Singapore was adopted as the model city with confined waste management structure that imports most of the grocery bags, either as finished goods or as raw materials. Through comprehensive insights based on the new outlook of the integrated LCA model (cradle-to-grave) that included full-scale transportation component, the usage of the real case data from a city to develop the life cycle inventory, and consideration of the existing grocery bags options, the environmental assessment along with critical evaluation was conducted.

The effect of chemical commitments with exposure to gamma irradiation dosage and save time on test attraction and pullet limits of HDPE pack

This study aims to determine the effect of gamma irradiation doses and time of storage on the mechanical properties of HDPE packaging plastics, and to apply gamma irradiation techniques to improve the mechanical quality of materials, especially plastic-based products. Packaging plastic is the most popular packaging material used, many businesses choose plastic as packaging for their products Research Place for Polymer laboratories, Isotopes and Radiation Technology Application Centers, National Nuclear Energy Agency, Pasar Jumat, South Jakarta and Mechanical Test Laboratory of the faculty of Engineering, UHAMKA Pasar Rebo, East Jakarta. To determine the resistance of packaging plastic to gamma irradiation, the effect of gamma irradiation dosage and storage time on the mechanical properties of HDPE plastic packaging were carried out. The research will be conducted with Cobalt-60 gamma radiation sources at irradiation doses of 10, 15, 20, 25, and 30 kGy with a dose rate of 6 kGy / hour, then some irradiated plastic footage is stored at room temperature for 0 and 5 weeks. The mechanical properties tested were yield strength, tensile strength, and elongation at break using the strograph R1 tensile test tool. Gamma irradiation caused yield strength, tensile strength and elongation in the A brand HDPE packaging plastic increased from 0 to 5 kGy, then decreased by 5.31% at a dose of 10 kGy and then continued to increase to a dose of 25 kGy. The optimum increase occurred from doses 15 to 20 kGy, as much as 12.00%. For plastic B, the breakout extension (Eb) continues to increase as the irradiation dose increases to 30 kGy. The optimum Eb increase occurs from a dose of 0 to 5 kGy, at 9.80%. Increased mechanical properties are caused by free radical species formed during the irradiation process, so that a cross-bond is formed between HDPE plastic packaging molecules. While the decrease occurs due to the weakening of the cross bond between the HDPE packaging plastic molecules.

A Domestic Plastic Waste Recycling Procedure to Find the Optimal Heat Treatment for Better Hardness and Compression Properties

The optimal recycling temperature and the time duration inside the oven to produce quality recycled plastic-waste has not been standardised. This research focuses on finding the optimal heat treatment procedures for the recycling of wasted plastics as a common guide for the recycling of wasted plastics by using basic domestic tools. Mechanical tests have been conducted on the recycled samples of HDPE and LDPE plastics to find the hardness and compression stress. It has been found that at oven temperature of 180°C, with a heating duration of 50 minutes inside the oven, yields an optimal hardness and compressive properties for LDPE. A temperature of 230° C, with a heating duration of 60 minutes, has been found to give the optimal properties for the HDPE.

Influence of Raw Material Properties on Parameters of Injection Press during the Injection of Composites Based Biomass and Plastic Waste

The main aim of this paper is to present the research findings which come out from the experimental determination of the influence of input raw material properties and composition on the operating parameters of an injection press during the injection of biomass-plastic composites (BPC). During the injection process, important operating parameters such as injection speed, injection pressure and the temperature profile along the chamber can be recognized. In this research study, the aim was to produce BPCs of an acceptable and competitive level of quality which is determined from the final mechanical properties of BPCs. Using a variety combination of influencing variables the final quality of composites and also the operating parameters of the injection moulding press can be improved. Raw waste material variables influence, especially (a type of plastic matrix, type of biomass, particle size, moisture content) and biomass/plastic concentration ratio can be recognized during the production of composites. Their effect can be seen from the quality indicators and from the operating parameters of the injection press which has a direct impact on the production costs. The paper deals with the determination of the impact and the relationship between the input raw material variables and the operating parameters of the injection process (pressure, speed, and temperature profile). The experimental research findings were obtained using a semi-operational injection moulding press where the injection is provided by a working screw. As the input raw material, wheat straw and spruce sawdust, HDPE plastic matrix and recycled HDPE, represented by lids from PET bottles, was used. The effect of the input raw material composition was determined according to a combination and default levels of biomass/HDPE concentration ratio, using recycled HDPE instead of virgin HDPE and particle size of biomass.

Thermal degradation of waste plastics under non-sweeping atmosphere: Part 2: Effect of process temperature on product characteristics and their future applications

The current energy demand and diminishing conventional fuels have forced researchers to find an alternative source of energy. Waste to energy is the current trend for converting waste materials (plastic waste) into valuable fuels. This article mainly discussed the detailed characterization of the pyrolytic products, their comparative analysis and the reaction mechanism at varying operating temperature. This article is a successor of part 1, which primarily focused on the characterization of different waste plastics, their TG analysis, the effect of reactor temperature on yield analysis in a batch reactor and their detailed degradation mechanism. Furthermore, the results presented in this article report the characterization of products at three processing temperatures of 450, 500 and 550 °C. The pyrolytic oils from all wastes excluding PS show a very low density ranging from 0.71 to 0.76 kg/m3, whereas PS pyrolytic density is reported between 0.86 and 0.88 kg/m3. The viscosity of oils increases with an increase in the processing temperature and is similar to the conventional fuels. The FTIR analysis of the products (oil & gases) obtained from HDPE, PP and mixed plastic waste (MIX) shows a large presence of alkanes and a higher presence of aromatics. PS analysis reported a large presence of aromatics (~75%). The GC-MS analysis of all pyrolytic oils from waste plastics, simulated wastes (virgin plastics) and distilled fraction of MIX pyrolysis oil is compared. The GC analysis of non-condensable gases at all processing temperature reports that MIX produce the maximum H2; HDPE, PS and MIX produces a high amounts of CH4 too. The formation of lower hydrocarbons (C5–C12) in pyrolysis oil shows a trend as MIX > PP > PS > HDPE, while for the heavier hydrocarbons (>C19) it is HDPE > PP > PS > MIX. The potential of the utilization of these products has been discussed in different sectors for future research.

The effect of the shape and size of HDPE plastic admixtures on to K125 concrete

This research uses admixture, namely HDPE plastic waste and aims to determine the effect of these admixture materials with different shape and size pieces on compressive strength and collapse as well as crack patterns on each concrete design, then to find the difference in the results of the compressive strength of each concrete made from material admixture as well as the shape and size of the pieces of plastic that are appropriately used as the material concrete admixture. This research used an experimental method, which compares the results of the compressive strength of normal concrete and concrete with the addition of plastic pieces of HDPE material, which are distinguished by shape and size. HDPE materials are cut into cubes with 1x1cm, rectangles measuring 0,5x2cm, and long sticks measuring 0.25 x 4 cm. The compassion of the percentage of material is added to the weight of cement which are equal to 5%. The results of compressive strength obtained respectively are, 136.915 kg/cm2 or 13.691 MPa for cube-shaped plastic pieces, 138.347 kg/cm2 or 13.835 MPa for concrete with rectangular plastic pieces which are the right shape and size to be used in concrete mix design, then 138,025 kg/cm2 or 13,803 MPa for concrete with long sticks pieces of plastic shaped, and the results of the concrete strength with admixture material are higher than the planned compressive strength and standard concrete. After that, the results of crack patterns for normal concrete were obtained, concrete with cube-shaped plastic pieces, concrete with rectangular plastic pieces, and long sticks plastic pieces of concrete, namely shear crack, crack voids and honeycomb, crack honeycomb, and crack concrete crazing and honeycomb. Whereas the collapse occurs between the coral joints with cement paste, and the plastic pieces are not damaged or broken. Therefore, the results of the study are found that differences in the shape and size of plastic pieces affect the value of slump, compressive strength, and collapse.

Production of Liquid Hydrocarbons from Plastic Wastes

Thermal pyrolysis of HDPE, LDPE, PP and PS plastic wastes were performed in a batch reactor and the yields of pyrolysis oils and liquid transportation fuels prepared by atmospheric distillation were determined. The gasoline fractions were tested in a traditional spark-ignition engine without any modifications or fuel blending. Fuel consumption and exhaust gas emission (NOx, CO) were measured and compared to a commercial fuel (RON = 95). PS generated 70.5% gasoline range hydrocarbons from the solid waste, followed by PP with 42.1%, LDPE with 40.8% and HDPE with 37.3%. The fuel consumption was reduced by 9.1-9.4% in the case of PS compared to reference measurement. Reduction in fuel consumption was noticeable at HDPE, LDPE and PP as well. PS gasoline decreased by 91-96%, while HDPE, LDPE and PP more likely increased the CO emission of the engine compared to commercial gasoline. The results show that pyrolysis of plastic wastes is a promising method to generate value added liquid transportation fuels and reduce the footprint of waste accumulation in landfills.

Processing Technology of Ketupat

Indonesia has a typical rice processing method as part of the nation’s culture, namely ketupat. Ketupat is typical food made of rice wrapped in diamond shaped-woven coconut leaves and boiled in water. This article reviewed the variety of processing ketupat as well as changes in ketupat during storage of ketupat according to the results of research and related references. Traditionally, ketupat is cooked in boiling water for 5 hours. This is considered inefficient in terms of cooking fuel and time required for cooking. The efforts of modifying ketupat cooking method have been done to shorten processing time, such as cooking ketupat in pressure cooker for 30 minutes. The development of ready-to-cook ketupat or quick-cooking product in attractive package becomes a promising opportunity. Quick-cooking ketupat was made by immersing ketupat in salt, steaming, freezing and drying. The package of quick-cooking ketupat was designed using HDPE plastics made square shape that requires boiling period for 30 minutes. Ingredients and the amount of rice, the size of coconut leaves, immersion process and cooking technic affected the texture of ketupat produced. Ketupat is normally stored for 2 days in room temperature and 4-7 day if it is refrigerated. Spoilage of ketupat is due to microbiological and physical changes during storage. Starch retrogradation and increase in RS III may occur when ketupat is stored at low temperature.

Bioplastics synthesis based on sorghum–Eucheuma spinosum modified with sorghum stalk powder

In this study, a bioplastic was produced by addition of filler and plasticizer. Sorghum stalk powder was selected as a filler and glycerol as plasticizer. The effects of filler and plasticizer concentration on physical and mechanical characteristics of the bioplastics were observed. In the bioplastic production, the amount of sorghum stalk powder varied from 0.25 to 1 g, and glycerol concentration was varied from 5 to 20%. On the other hand, the amount of Eucheuma spinosum, as a fiber, and sorghum starch as a matrix remained constant. The bioplastic production has conducted by stirring the starch, fiber, filler, and glycerol for 35 minutes at 95°C and 375 rpm. The mixture was dried at 50°C for 8 hours. The best physical and mechanical characteristics of the product were obtained from the formulation consisting 0.5 g of filler and 10% of plasticizer concentration. The bioplastic itself had 21.265 MPa of tensile strength, 4.467% of elongation, 498.463 MPa of Young’s Modulus, 0.95 g/cm3 of density, and 21.265% of water uptake which are in the range of commercial HDPE plastic characteristics.

BAHAN BAKAR CAIR DARI LIMBAH PLASTIK DENGAN METODE CATALYTIC CRACKING

Indonesia with a very large population, is currently working hard to diversify its energy, in order to meet energy needs in the country, especially electricity and fuel energy, preferably environmentally friendly renewable energy, when this plastic waste becomes national problems because they cannot decompose under ordinary conditions unless they are converted into chemical fuel. This study aims to obtain liquid fuel energy, in this case used HDPE plastic waste raw material (in the form of packaged drinking water), this plastic waste is processed using the Catalitic Cracking method with silica Alumina as a catalyst, the process lasts for 4 hours with a temperature of 100 -400oC and 53% of the plastic oil obtained, brownish yellow, with density and viscosity and flash point approaching kerosine compounds to diesel fuel, in the process of catalytic cracking, temperature factors, process length and the catalyst used greatly affect the number of products and product quality from the liquid fuel produced.

Transportation fuel from plastic wastes: Production, purification and SI engine tests

Thermal pyrolysis of HDPE, LDPE, PP, PS, PET and PUR plastic wastes were performed in a batch reactor equipped with a temperature controlled reflux and the yields of pyrolysis oils and liquid fuels suitable for transportation were determined. The gasoline fractions were investigated by GC-MS and tested in a traditional spark-ignition engine without any modifications or fuel blending. Fuel consumption and exhaust gas emission (NOx, CO) were measured and compared to a commercial fuel (gasoline, RON = 95). PS generated 70.5% gasoline range hydrocarbons from the solid waste, followed by PP with 42.1%, LDPE with 40.8% and HDPE with 37.3%. Liquid product was not observed during PET pyrolysis. The engine was easily running with neat gasoline fractions obtained from HDPE, LDPE, PP and PS distillation; however, it was not able to start the engine with the neat dehydrated PUR distillate. The volumetric fuel consumption was reduced by 9.1–9.4% in case of PS compared to commercial gasoline (RON = 95) but the NOx emission was increased by 82–147%. Fuel consumption reduction was noticeable at HDPE, LDPE and PP as well. PS gasoline decreased by 91–96%, while HDPE, LDPE and PP more likely increased the CO emission of the engine compared to commercial gasoline.