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Conditions for Acid Fermentation of Molasses for Effective Production of Propylene from Biomass

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Other Title
  • 廃糖蜜からのプロピレン製造に向けた酸発酵条件の検討
  • ハイトウミツ カラ ノ プロピレン セイゾウ ニ ムケタ サン ハッコウ ジョウケン ノ ケントウ

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Abstract

<p>Biomass resources have attracted attention because they are renewable and can be converted into feedstock for producing valuable chemicals such as olefins and aromatics. The present study proposes a two-step operation for producing bio-oils or chemicals from biomass to improve the quality of product and catalyst life. The first step is fermentative production of oxygen-containing compounds such as butyric acid from molasses as biomass. In the second step, the product is converted catalytically to propylene. The feasibility of the two-step process depends on the fermentation step. To realize the efficient acid fermentation, conditions were studied for producing butyric acid in high selectivity in a short period. Under our optimized conditions, selectivity was improved from 25.4 to 73.5 C% and the fermentation period was shortened from 13.5 to 1.5 d. Catalytic conversion of the fermentation product over zeolite gave a propylene yield of 25 C%. The results clearly show feasibility of the two-step processes for propylene production from molasses.</p>

Journal

  • KAGAKU KOGAKU RONBUNSHU

    KAGAKU KOGAKU RONBUNSHU 44 (4), 278-283, 2018-07-20

    The Society of Chemical Engineers, Japan

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