%J IOP Conference Series: Materials Science and Engineering %L scholars13048 %O cited By 1; Conference of 5th UTP-UMP-UAF Symposium on Energy Systems 2019, SES 2019 ; Conference Date: 1 October 2019 Through 2 October 2019; Conference Code:161025 %N 1 %R 10.1088/1757-899X/863/1/012023 %D 2020 %X Plastic waste management has been a problem as most of the plastics are not biodegradable. Although plastics are recyclable, only 21 of total plastic wastes are recycled. Using plastics as gasification feedstock/co-feedstock and converting it to usable energy is one of the solutions of removing plastics waste. Co-gasifying polystyrene (PS) with palm kernel shell (PKS) is promising as both of the feedstocks are abundant and have high energy content. However, the performance of air gasification of PKS and PS has not been studied previously. In this work, co-gasification of PKS and PS was carried out, focusing on the effect of PS content in the feedstock. The PS content was varied from 0 to 30 wt. By increasing the PS content, the CH4 volume percentage increases, while CO and H2 volume percentage decreases. The high heating value of the producer gas increases with PS content, from 11.95 MJ/Nm3 at 10 wt PS, to 12.36 MJ/Nm3 at 30 wt PS. Higher PS content also increases the gas yield percentage. © 2020 Published under licence by IOP Publishing Ltd. %I Institute of Physics Publishing %V 863 %A M.H. Basha %A S.A. Sulaiman %T Air co-gasification of palm kernel shell and polystyrene: Effect of different polystyrene content