P232 木質バイオマスガス化におけるレンガ粉砕物のタール分解・ガス化特性

概要

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Reduction rates of iron in clay house brick particles were measured by thermogravimetry to evaluate the catalytic gasification effects in a fluidized bed gasifier. Iron in fresh clay house brick particles was reduced into Fe for around 30min in hydrogen atmosphere at 973K. However, after the regeneration of brick particles used for gasification, iron inside the brick was easily reduced by several minutes due to the structure change during the iron oxidation and reduction. Steam gasification of cellulose powder was conducted in a fluidized bed of crushed clay house brick between 650℃ and 850℃ with or without regeneration. Regenerated clay brick particles had high gasification capability as compared to the fresh clay particles due to the rapid reduction of iron in the particles. Biomass fluidized gasification with readily available and cheap clay-derived catalysts is a promising approach to the synthesis of hydrogen and syngas from biomass.
一般社団法人日本エネルギー学会の論文
2006-01-17