文献类型：期刊文献

英文题名：Maximizing cellulosic ethanol potentials by minimizing wastewater generation and energy consumption: Competing with corn ethanol

作者：Liu, Gang[1];Bao, Jie[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：245

起止页码：18

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20173704145419);WOS:【SCI-EXPANDED(收录号:WOS:000412443500003)】；

基金：This research was partially supported by the National Basic Research Program of China (2011CB707406).

语种：英文

外文关键词：Cellulosic ethanol; Dry acid pretreatment and biodetoxification (DryPB); Wastewater generation; Energy consumption; Minimum ethanol selling price (MESP)

摘要：Energy consumption and wastewater generation in cellulosic ethanol production are among the determinant factors on overall cost and technology penetration into fuel ethanol industry. This study analyzed the energy consumption and wastewater generation by the new biorefining process technology, dry acid pretreatment and biodetoxification (DryPB), as well as by the current mainstream technologies. DryPB minimizes the steam consumption to 8.63 GJ and wastewater generation to 7.71 tons in the core steps of biorefining process for production of one metric ton of ethanol, close to 7.83 GJ and 8.33 tons in corn ethanol production, respectively. The relatively higher electricity consumption is compensated by large electricity surplus from lignin residue combustion. The minimum ethanol selling price (MESP) by DryPB is below $2/gal and falls into the range of corn ethanol production cost. The work indicates that the technical and economical gap between cellulosic ethanol and corn ethanol has been almost filled up.