EХERGY AND LIFE CYCLE ENVIRONMENTAL ANALYSIS OF MIХED ALCOHOL PRODUCTION SYSTEM VIA PATHWAY OF BIOMASS GASIFICATION,CATALYTIC SYNTHESIS AND TAIL GAS FERMENTATION

被引：0

作者：

Tan F. ^{[1
,2
]}

Li Y. ^{[1
]}

Liao Y. ^{[1
]}

Dong K. ^{[1
]}

Wu J. ^{[1
,3
]}

Ma L. ^{[4
]}

机构：

[1] Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou

[2] University of Chinese Academy of Sciences, Beijing

[3] Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao

[4] School of Energy and Environment, Southeast University, Nanjing

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 12期

关键词：

biomass; environmental impact assessment; exergy; fermentation; gasification synthesis; mixed alcohol;

D O I：

10.19912/j.0254-0096.tynxb.2023-0245

中图分类号：

学科分类号：

摘要：

A new process for mixed alcohol production via the pathway of gasification of forestry residue(wood chip),catalytic synthesis and tail gas fermentation was simulated in this study. The mass and energy flow of the system,the exergic efficiency of the system/subsystem and the source of exergic loss were analyzed. Through the collection of resource energy consumption and emission inventories at different stages of forestry, storage and transportation, preparation and product transportation, nine types of environmental impacts,including global warming potential and ozone depletion potential,were analyzed. The results show that the tail gas fermentation subsystem can use microbial strains to metabolize CO and CO2 in the tail gas to prepare ethanol and can obtain high yield of higher alcohols by catalyzed synthesis. The mixed alcohol yield and exergy efficiency can reach 0.328 kg/kg wood chips and 43.8% respectively. During the life cycle of mixed alcohol,non-carcinogenic damage to human body and terrestrial ecological toxicity are the most affected environmental types,which came from the preparation and storage and transportation stages respectively. © 2023 Science Press. All rights reserved.

引用

页码：366 / 373

页数：7

共 28 条

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