TY - JOUR
T1 - Life cycle assessment of bio-fermentation ethanol production and its influence in China's steeling industry
AU - Zhang, Lingyun
AU - Shen, Qun
AU - Pang, Cheng Heng
AU - Chao, Wei
AU - Tong, Shuhuan
AU - Kow, Kien Woh
AU - Lester, Edward
AU - Wu, Tao
AU - Shang, Li
AU - Song, Xuehang
AU - Sun, Nannan
AU - Wei, Wei
N1 - Funding Information:
This work was supported by Shanghai Science and Technology Committee ( 21692112200 , 20DZ1207500 ).
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/4/15
Y1 - 2023/4/15
N2 - Conversion of Linz-Donawitz Gas from steeling industry into ethanol (LDG-ethanol) was demonstrated to be a promising route for value-added utilization of tail-gas. However, a systematic and objective understanding of the environmental impact benefits is still lacking. In this work, the environmental footprint of the technology is systematically evaluated by life cycle assessment (LCA) and compared with its competitors under different scenarios development. The assessment results show that LDG-ethanol route is the most environmentally benign option, whose environmental impact value is 22%–25% lower than that of Corn-ethanol and Coal-ethanol routes. More importantly, electricity as the key determining factor, the environmental footprint of LDG-ethanol can be further decreased by 15%–68% via lowering electricity consumption and introducing of green power. As grid decarbonization gradually, such interesting characteristics endowed LDG-ethanol with enormous potential to achieve the decarbonization goal. Based on the LCA analysis, the carbon reduction potential, economic benefits, and early opportunities of the LDG-ethanol technology are further analysed in the context of the Chinese steel industry to inspire heavy industries seek new technologies for re-use CO/CO2-containing waste gases.
AB - Conversion of Linz-Donawitz Gas from steeling industry into ethanol (LDG-ethanol) was demonstrated to be a promising route for value-added utilization of tail-gas. However, a systematic and objective understanding of the environmental impact benefits is still lacking. In this work, the environmental footprint of the technology is systematically evaluated by life cycle assessment (LCA) and compared with its competitors under different scenarios development. The assessment results show that LDG-ethanol route is the most environmentally benign option, whose environmental impact value is 22%–25% lower than that of Corn-ethanol and Coal-ethanol routes. More importantly, electricity as the key determining factor, the environmental footprint of LDG-ethanol can be further decreased by 15%–68% via lowering electricity consumption and introducing of green power. As grid decarbonization gradually, such interesting characteristics endowed LDG-ethanol with enormous potential to achieve the decarbonization goal. Based on the LCA analysis, the carbon reduction potential, economic benefits, and early opportunities of the LDG-ethanol technology are further analysed in the context of the Chinese steel industry to inspire heavy industries seek new technologies for re-use CO/CO2-containing waste gases.
KW - Bio-fermentation technology
KW - Environmental footprint
KW - Ethanol production
KW - Life cycle assessment
UR - http://www.scopus.com/inward/record.url?scp=85149411920&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2023.136492
DO - 10.1016/j.jclepro.2023.136492
M3 - Article
AN - SCOPUS:85149411920
SN - 0959-6526
VL - 397
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
M1 - 136492
ER -
