Journal
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
Volume -, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1007/s10668-022-02279-6
Keywords
Biomass; Gasification; Syngas; Catalyst; Fluidized bed
Funding
- Higher Education Commission, Islamabad, Pakistan
- Fundamental Research Grant Scheme, Malaysia [FRGS/1/2019/STG05/UNIM/02/2]
- MyPAIR-PHC-Hibiscus Grant [MyPAIR/1/2020/STG05/UNIM/1]
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Biomass gasification technology is widely used for the production of biofuels and syngas, with parameters such as biomass particle size, moisture content, gasifying agent, residence time, equivalence ratio, steam to biomass ratio, and gasification temperature having a significant impact on the process. Fluidized bed gasifiers and catalysts play important roles in the production of optimal syngas.
Biomass gasification technology has an ancient and well-established background. The technology has widely been used to produce H-2 and syngas which is subsequently upgraded to obtain valuable biofuels, Fischer-Tropsch chemicals and used in combined heat and power (CHP) plants. Abatement of tar-related complexes with an improved hydrogen content and syngas ratio (H-2/CO) via biomass gasification is a critical challenge. In this review, an attempt has been made to evaluate the critical parameters affecting biomass gasification process. It is revealed that each parameter (i.e., biomass feedstock particle size, moisture content, gasifying agent, residence time, equivalence ratio, steam to biomass ratio, and gasification temperature) has significant impact of H-2 and syngas production. Fluidized bed gasifiers have been quite efficient for small to medium scale applications to produce optimal syngas ratios. Use of catalyst greatly influenced the H-2 and syngas yields. Impregnated catalysts were found to have more pronounced effect on the water-gas shift reaction resulting in improved gas yields. Although, the parametric optimization could be achieved; notwithstanding, economic feasibility and industrial viability are to be considered too.
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