Microwave-Assisted Co-Pyrolysis of Bamboo Biomass with Plastic Waste for Hydrogen-Rich Syngas Production

Saifuddin, N.; Priatharsini, P.; Hakim, S.B.

doi:10.3844/ajassp.2016.511.521

Cited by 19 publications

(4 citation statements)

References 52 publications

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“…It was found that higher coke was obtained in the co-pyrolysis products of RH and PS. The research of Saifuddin et al [112] shows that the increase in plastic composition is helpful to reduce the formation of coke during the co-pyrolysis of bamboo and LDPE, since the increase in plastic provides hydrogen for the pyrolysis of polymer, which makes the pyrolysis of polymer produce hydrocarbons as much as possible instead of coke. Temperature is also an important factor affecting the pyrolysis products.…”

Section: Residues From Map Of Plasticsmentioning

confidence: 99%

A Review on the Microwave-Assisted Pyrolysis of Waste Plastics

Yang

Shang

et al. 2023

Processes

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The exhaustion of fossil energy and the severe pollution induced by using plastics has forced people to embark on the road to sustainable development. The high value of the recycling of plastics has become an important part of energy conservation. Microwave treatment, owning specific interactions between the electric field and the molecules of treated materials, presents potential advantages in the application of plastic pyrolysis. Therefore, the research status of the microwave-assisted pyrolysis (MAP) of plastics to produce high-value-added liquid oil, gas, and solid carbon was reviewed in this paper. The effects of plastic properties, microwave treatment parameters, microwave absorbers, co-pyrolysis, catalysts, and reactor devices on the process and the products were analyzed. It is essential to optimize the experimental design by studying microwave-assisted co-pyrolysis technology and the application of catalysts, understanding the mechanism of co-pyrolysis to improve product selectivity. At the same time, the continuous MAP device for large-scale plastics treatment still needs to be developed. In addition, developing a large-scale simulation computing research platform for screening catalysts, optimizing processes, and commercial production is required to make the process more efficient.

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Section: Residues From Map Of Plasticsmentioning

confidence: 99%

A Review on the Microwave-Assisted Pyrolysis of Waste Plastics

Yang

Shang

et al. 2023

Processes

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“…Most of the pyrolysis work has been conducted by using thermal heating sources such as electric and gas heater . Generally, carbon is a good microwave absorber due to its high conductive losses under microwave polarization and can be easily heated under the microwave radiation . Therefore, utilizing microwaves to heat biomass particles could be a more promising technique than thermal pyrolysis because the use of microwaves intensifies pyrolysis reactions and, thus, increases overall process efficiency. , Under thermal heating, fuels are heated by conduction and convection from the reactor walls producing a thermal gradient with greater temperatures near the reactor walls and lower temperatures in the center of the material volume.…”

Section: Introductionmentioning

confidence: 99%

Effect of Microwave and Thermal Co-pyrolysis of Low-Rank Coal and Pine Wood on Product Distributions and Char Structure

et al. 2019

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Direct conversion of a low-rank coal into valuable chemicals or improving its char's coking value became very demanding goals in coal utilization strategies. In this work, the co-pyrolysis of a low-rank lignite coal and pine wood sawdust biomass blended at a 3:1 coal-to-biomass ratio was investigated along with original coal and biomass samples by microwaveassisted and conventional thermal methods at 550 °C under nitrogen and ambient pressure. The carbon structure and its reactivity in generated chars and the product distributions were greatly affected by the applied heating mechanism and the presence of biomass during coal pyrolysis. High gas and low tar yields were observed for all microwave chars in comparison to thermal chars, regardless of composition. The addition of biomass to coal increased the tar yield under both methods and to a higher extent under the microwave. This agrees with the high gas yield and high aromatic-to-aliphatic fraction observed under the microwave and the presence of biomass. The high O/C ratio and low fixed carbon content in a biomass structure relative to coal affect the product distribution during microwave pyrolysis. This could selectively heat the biomass in the sample, remove its polar groups, and convert it into an efficient microwave absorber biochar that can decompose coal efficiently during copyrolysis. The aromatic carbon stacking and its ordering in the generated chars were investigated by powder X-ray diffraction, Raman spectroscopy, dielectric property measurements, and electron spin resonance techniques. A synergistic effect was observed upon biomass addition during microwave coal pyrolysis. Electron spin resonance spectroscopy revealed that the microwave coal/biomass char is the most stable char with the lowest free radical concentration. This agrees with the highest I G / I all band area ratio calculated from Raman analysis revealing a more graphitic nature for carbon in this char. Similarly, the dielectric properties confirmed that the addition of biomass to coal under the microwave has the highest loss tangent, indicating a high graphitic nature compared to pure biochar or coal char.

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“…Some of them can migrate into the body tissue and enter the food chain. Energy recovery from waste can be an economically attractive source of energy as part of an integrated solid waste management plan (Beccali et al, 2001;Koukouzas et al, 2008;Al-Salem et al, 2009;Arena et al, 2011;Saifuddin et al, 2016). The energy conversion technology of plastic wastes, especially the pyrolysis and gasification technologies have been studied to promote the renewable energy utilization and solve the environmental pollution (Gug et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Recycle of Plastic Bag Wastes with Organic Wastes to Energy for RDF Productions

Kan¹,

Kungkajit²,

Kaosol³

2017

American Journal of Applied Sciences

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This paper studies the utilization potential of Refuse Derived Fuel (RDF) approach to recover the discarded plastics from Hatyai solid waste disposal site in Songkhla province, Thailand. The excavated plastic bag wastes from the closure landfill of Hatyai, unused plastic bag wastes and waste residues are the raw materials for RDF productions. The raw materials are characterized for proximate analysis and ultimate analysis. The RDF5 (Densified RDF) with different raw materials are produced and characterized in this study. All raw materials have low moisture content, high volatile solids, low ash content and low fixed carbon. Thus, these raw materials are suitable for RDF productions. Due to low sulfur content, the combustion of these RDFs has no risk for the global warming and acid rain cause. The various RDFs in this study include a plastic bag wastes-palm fronds-RDF (PP-RDF), an unused plastic bag wastes-palm fronds-RDF (UPP-RDF), a plastic bag wastes-palm fronds-cassava peels-RDF (PPCRDF) and a plastic bag wastes-palm leaves-rubber wastes-RDF (PPRRDF). The various RDFs are provided the good physical and chemical properties. The higher heating value (HHV) of PP-RDF, UPP-RDF, PPCRDF and PPR-RDF is 5,725, 5,674, 5,548 and 5,872 kcal/kg, respectively. The HHV of various RDFs is higher than the HHV criterion for RDF in the briquette form. Therefore, the plastic-wastes RDF has the potential for energy as solid fuels for kiln. According to this study, the plastic-bagwastes RDF in the briquette form is suitable for renewable energy.

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Microwave-Assisted Co-Pyrolysis of Bamboo Biomass with Plastic Waste for Hydrogen-Rich Syngas Production

Cited by 19 publications

References 52 publications

A Review on the Microwave-Assisted Pyrolysis of Waste Plastics

A Review on the Microwave-Assisted Pyrolysis of Waste Plastics

Effect of Microwave and Thermal Co-pyrolysis of Low-Rank Coal and Pine Wood on Product Distributions and Char Structure

Recycle of Plastic Bag Wastes with Organic Wastes to Energy for RDF Productions

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