Comparative Evaluation of Ethanol Production Process from Cellulosic Biomass with Different Pretreatment and Saccharification Method
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- Saga Kiyotaka
- 産業技術総合研究所 バイオマス研究センター
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- Fujimoto Shinji
- 産業技術総合研究所 バイオマス研究センター
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- Yanagida Takashi
- 産業技術総合研究所 バイオマス研究センター
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- Tada Chika
- 産業技術総合研究所 バイオマス研究センター
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- Bespyatko Lyudmyla Yuriyivna
- 産業技術総合研究所 バイオマス研究センター
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- Bautista Elmer
- 産業技術総合研究所 バイオマス研究センター
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- Minowa Tomoaki
- 産業技術総合研究所 バイオマス研究センター
Bibliographic Information
- Other Title
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- 前処理・糖化法の違いを考慮したセルロース系バイオエタノール製造プロセスの比較評価
Abstract
It is important to produce bioethanol from cellulosic biomass, which doesn’t compete with food. Ethanol production process from cellulosic biomass is classified by many pretreatment and saccharification methods. This study considers three methods that are using concentrated sulfuric acid hydrolysis (NEDO), dilute sulfuric acid pretreatment and enzyme saccharification (NREL), and hot water and milling pretreatment and enzyme saccharification (AIST). Three processes are designed by process simulator PRO/Ⅱ, and these material and energy balances are calculated. Conversion efficiencies of saccharification and fermentation are sensitive for ethanol production system, so the range of efficiency values is considered. Finally, these processes are evaluated by amount of CO2 emission reduction. NEDO process needs a large amount of thermal energy for sulfuric acid recovery, and AIST process uses a lot of power for disk milling. NREL process achieves the highest CO2 emission reduction. In the case of no byproduct (mainly lignin) use, however, all processes has a potential to be not able to reduce CO2 emission. In order to reduce CO2 emission, it is essential to use byproduct for process energy supply.
Journal
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- Journal of Japan Society of Energy and Resources
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Journal of Japan Society of Energy and Resources 30 (2), 9-14, 2009
Japan Society of Energy and Resources
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Details 詳細情報について
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- CRID
- 1390282752325663104
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- NII Article ID
- 130007706674
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- ISSN
- 24330531
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed