Influence of pretreated coconut shell on gasification product yield

• Published in: E3S web of conferences Vol. 437; p. 3012
• Main Authors: Muda, S.Z., Ahmad, R., Mohammed, S.A., Wan Ahmad, W.A.M., Vijean, V., Santiagoo, R., Ibrahim, N.R., Ani, A.Y.
• Format: Journal Article
• Language: English
• Published: EDP Sciences 01.01.2023
• ISSN: 2267-1242; 2267-1242
• DOI: 10.1051/e3sconf/202343703012

Gasification of untreated and pretreated coconut shell (CS) was carried out in a fixed-bed reactor to assess the effect of temperature (600, 650, 700, 750, and 800 °C) and holding time (30 and 40 min) on gases composition. The untreated CS was first torrefied in a fixed-bed reactor at different temperatures (200 – 300 °C) and holding times (30 min, 60 min and 90 min). Pretreated CS at the optimal torrefaction temperature (275 °C and 60 min) was used for gasification. Under optimal conditions of 750 °C and 30 min holding time, gasification contributed the most gas production. At this optimum condition, the gas composition of pretreated CS was 35.03 % of CH 4 , 24.43 % of CO 2 , and 40.54 % of H 2 + CO. Untreated CS contains 37.63 % of CH 4 , 24.03 % of CO 2 , and 38.34 % of H 2 + CO gases. The production of CH 4 gas was higher when untreated CS was used for gasification rather than pretreated CS. Moreover, when untreated CS was used for gasification, the amount of CO 2 , H2, and CO produced was minimal. Therefore, for high H2 production, pretreatment prior to gasification is appropriate.