| Summary: | 碩士 === 國立成功大學 === 航空太空工程學系 === 104 === Steam gasification is capable of producing syngas with higher hydrogen molar fraction than air or oxygen gasification. This paper optimizes steam gasification process for palm empty fruit bunch (EFB) using Taguchi method. The gasification experiment is carried out in a small, self-built batch type fixed bed gasifier. H2/CO ratio is selected as quality standards. L9 orthogonal array is used with four parameters: gasification temperature, torrefaction temperature, steam flow rate and carrier gas (nitrogen) flow rate. Lower temperature of gasification is found to increase the H2/CO ratio in syngas considerably, and its effect significantly outweighs other factors. The difference of reaction in gasifier between different levels of control factors is investigated. Economical assessments were also performed.
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