Publication: H2-rich and tar-free downstream gasification reaction of efb by using the malaysian dolomite as a secondary catalyst
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Date
2021
Authors
Mohammed M.A.A.
Shafizah I.N.
Salmiaton A.
Arifin N.A.
Hafriz R.S.R.M.
Azlina W.A.K.G.W.
Taufiq-Yap Y.H.
Shamsuddin A.H.
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
In this study, Malaysian dolomites as secondary catalysts are placed at the downstream of the fluidized-bed gasifier. Three types of Malaysian dolomites with different elemental ratios of CaO-MgO content denoted as P1, P2, and P3 are investigated with EFB gasification reaction at different cracking temperatures (700�900?C). The performance of the catalysts with a variation of catalyst to biomass weight ratio (C/B) (0.05 to 0.30 w/w) is evaluated. The findings showed that the total gas yield increased by 20%, hydrogen increased by 66%, along with an almost 99% reduction in tar content with P1 catalyst with the following reaction conditions: gasification temperature of 850?C, equivalence ratio (ER) of 0.25, and cracking temperature of 900?C. Malaysia dolomite could be a secondary catalyst to provide a better alternative, tar-free hydrogen-rich gas with the possibility of regeneration and re-use. � 2021 by the authors. Licensee MDPI, Basel, Switzerland.