稲わら由来のバイオエタノール生産におけるエタノール変換効率の違いがコスト,CO<SUB>2</SUB>排出およびエネルギ収支に及ぼす影響

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タイトル別名
  • Effect of Ethanol Conversion Efficiency on Cost, CO<SUB>2</SUB> Emission and Energy Balance in the Bioethanol Production System from Rice Straw
  • イネワラユライ ノ バイオエタノール セイサン ニ オケル エタノール ヘンカン コウリツ ノ チガイ ガ コスト CO2 ハイシュツ オヨビ エネルギ シュウシ ニ オヨボス エイキョウ

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抄録

This study examines the cost, CO2 emission and energy balance of the bioethanol production process. In this process, bioethanol is produced from rice straws by concentrated sulfuric acid hydrolysis. The potentiality of bioethanol produced from rice straw as energy resources is also examined. The results reveal that the ethanol conversion efficiency greatly affects the ethanol production cost, CO2 emission, and energy balance. An energy recovering system based on lignin burning in a boiler system is necessary to reduce CO2 emission and to improve the energy balance of bioethanol production process. To reduce the cost of the bioethanol production, it is necessary to develop efficient methods for the collection of rice straws as well as to improve the efficiency of ethanol conversion processes.

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