ENVIRONMENTAL IMPACT ASSESSMENT ON FUEL GAS PRODUCTION FROM DISTILLER’S GRAINS BY ANAEROBIC DIGESTION COUPLED WITH GASIFICATION

ZHANG Xiaoyan; WANG Zhi; LI Zhiyu; LI Jian; YAN Beibei; ZUO Xiaoyu; YANG Gaixiu; TAO Junyu; CHEN Guanyi

doi:10.13205/j.hjgc.202401009

Volume 42 Issue 1

Jan. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(1): 63-71

ZHANG Xiaoyan, WANG Zhi, LI Zhiyu, LI Jian, YAN Beibei, ZUO Xiaoyu, YANG Gaixiu, TAO Junyu, CHEN Guanyi. ENVIRONMENTAL IMPACT ASSESSMENT ON FUEL GAS PRODUCTION FROM DISTILLER’S GRAINS BY ANAEROBIC DIGESTION COUPLED WITH GASIFICATION[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(1): 63-71. doi: 10.13205/j.hjgc.202401009

Citation:

ZHANG Xiaoyan, WANG Zhi, LI Zhiyu, LI Jian, YAN Beibei, ZUO Xiaoyu, YANG Gaixiu, TAO Junyu, CHEN Guanyi. ENVIRONMENTAL IMPACT ASSESSMENT ON FUEL GAS PRODUCTION FROM DISTILLER’S GRAINS BY ANAEROBIC DIGESTION COUPLED WITH GASIFICATION[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(1): 63-71. doi: 10.13205/j.hjgc.202401009

Citation:

ZHANG Xiaoyan, WANG Zhi, LI Zhiyu, LI Jian, YAN Beibei, ZUO Xiaoyu, YANG Gaixiu, TAO Junyu, CHEN Guanyi. ENVIRONMENTAL IMPACT ASSESSMENT ON FUEL GAS PRODUCTION FROM DISTILLER’S GRAINS BY ANAEROBIC DIGESTION COUPLED WITH GASIFICATION[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(1): 63-71. doi: 10.13205/j.hjgc.202401009

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ENVIRONMENTAL IMPACT ASSESSMENT ON FUEL GAS PRODUCTION FROM DISTILLER’S GRAINS BY ANAEROBIC DIGESTION COUPLED WITH GASIFICATION

doi: 10.13205/j.hjgc.202401009

1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China;
2. Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
4. School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China

Received Date: 2023-01-19
Available Online: 2024-04-29

Abstract

Abstract

As an efficient conversion pathway to produce biomass fuel gas, the integrated anaerobic digestion and gasification process shows significant advantages in energy conversion. To ascertain the effect of anaerobic digestion degree on the environmental benefits, a model of gradient-controlled anaerobic digestion and gasification integration process was built, and the distiller's grains were treated with different anaerobic digestion times. The life cycle analysis method and Gabi software were used to conduct the environmental impact assessment.Resultsshowed that the energy produced by the gradient-controlled coupled system can not only cover the drying of the biogas residue, but also achieve net energy output. And the positive environmental impacts based on energy flow can offset the negative environmental impacts based on material flow, so that the system can obtain positive comprehensive environmental impacts. The optimal total potential environmental impact of a 1000 kg distiller's grains system was-2.02×10^-9 with anaerobic digestion treatment lasting for 8 days. The control of the coupling degree of anaerobic digestion and gasification process makes the coupled system optimize its net energy output and have the most favorable environmental impact, so as to provide theoretical guidance for the application of the coupled process.
- distiller's grains,
- anaerobic digestion-gasification integration,
- life cycle assessment,
- environmental impact

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References(36)

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