Co-gasification of palm kernel shell and polystyrene plastic: Effect of different operating conditions

Solid Waste Gasification: Comparison of Single- and Multi-Staged Reactors

“…For example, Xiong et al [22] found that the reactor diameter had a negligible effect on gasification performance, but an increase in bed height (0.6-1.2 m) caused an increased heating value and carbon conversion efficiency. Basha et al [23] found that a difference in the hydrocarbon content and methane concentration of the product gas depends on the reactor size and design. Larger reactors can increase the residence time of the product gas in the reactor, so that lighter hydrocarbons have more time to decompose or undergo oxidization into smaller molecules such as H 2 and CO [23].…”

“…Basha et al [23] found that a difference in the hydrocarbon content and methane concentration of the product gas depends on the reactor size and design. Larger reactors can increase the residence time of the product gas in the reactor, so that lighter hydrocarbons have more time to decompose or undergo oxidization into smaller molecules such as H 2 and CO [23]. There are various types of reactors developed for solid waste gasification, including bubbling fluidized bed, downdraft fluidized bed, updraft fluidized bed, downdraft fixed bed, updraft fixed bed, batch, and entrained-flow reactors, some of which are shown in Figures 2-4.…”

“…Xiang et al [28] studied the steam gasification of MSW with two different MSW particle sizes (20 < diameter < 30 mm and 80 < diameter < 100 mm), finding that the increase of particle size decreased the total volume fraction of H 2 and CO from 52% to 50%. Basha et al [23] selected a feedstock size of 2-4 mm because a larger particle size prevented a compact fuel bed, while a smaller particle size blocked the reactor and plugged the gas outlet.…”

“…For example, Bai et al [52] studied the gasification kinetic of PC in supercritical water at different reaction time (5-60 min), finding that the increase in reaction time improved the gasification efficiency. Bai et al [52] also studied the gasification at different pressures (21)(22)(23)(24)(25)(26)(27)(28)(29), finding that the pressure had no significant impact on gasification. This is likely because the properties of the supercritical water do not change significantly at these different pressures.…”

Syngas Characteristics From Catalytic Gasification of Polystyrene and Pinewood in CO2 Atmosphere

“…In recent years, gasification of plastic wastes and biowastes has received growing attention as this technology provides a promising pathway for simultaneous energy production and waste disposal. Basha et al [14] performed air co-gasification of PS and palm kernel using an electrically heated downdraft gasifier at temperatures of 700-900 °C. They found that increase in gasification temperature resulted in higher H 2 and CO volume fractions but lower CH 4 volume fraction in the collected syngas and that an increase in PS content in the feedstock blend enhanced syngas production at 900 °C.…”