Energy Balance of a Staged Process for the Supercritical Water Gasification of a Hydrogen Fermentation Residue of Food Waste
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概要
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This study was conducted to calculate the energy balance of supercritical water gasification with an activated carbon catalyst for a hydrogen fermentation residue of soybean fiber (SFHFR). To circumvent the problem of plugging, we examined the gasification of SFHFR by a staged operation with alternate feeding of water and feedstock. The calculations were applied to a gasification reaction conducted within a tubular reactor at 600°C and 25 MPa, with an average residence time of 73 s. The calculation results were a cold gas efficiency <I>η<SUB>R</SUB></I> [(amount of energy recovery from feedstock as product gas, E<SUB>g</SUB></I>) / (energy supply from feedstock, E<SUB>f</SUB></I>)] of 0.72 and an energy efficiency η<SUB>e</SUB>, E<SUB>g</SUB></I> / [(heat supplied by the electric furnace, E<SUB>i</SUB></I>) + (energy supply from feedstock, E<SUB>f</SUB></I>)] of 0.30. A comparison between continuous operation and the operation in staged intervals confirmed the effectiveness of the latter.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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