Greenhouse gas emissions of a biomass-based pyrolysis plant in China

被引:57
|
作者
Yang, Qing [1 ,2 ,3 ]
Han, Fei [1 ]
Chen, Yingquan [1 ]
Yang, Haiping [1 ]
Chen, Hanping [1 ]
机构
[1] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Dept New Energy Sci & Engn, Wuhan 430074, Peoples R China
[3] Harvard Univ, John A Paulson Sch Engn & Appl Sci, Harvard China Project, Cambridge, MA 02138 USA
来源
基金
中国国家自然科学基金;
关键词
Biomass pyrolysis; Greenhouse gas emission; Carbon cycle; China; LIFE-CYCLE ASSESSMENT; NONRENEWABLE ENERGY-COST; FIRED POWER-PLANTS; WIND POWER; BIOCHAR; CARBON; ETHANOL; ELECTRICITY; LCA; GASIFICATION;
D O I
10.1016/j.rser.2015.09.049
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Biomass pyrolysis offers an alternative to industrial coal-fired boilers and utilizes low temperature and long residence time to produce syngas, bio-oil and biochar. Construction of biomass-based pyrolysis plants has recently been on the rise in rural China necessitating research into the greenhouse gas emission levels produced as a result. Greenhouse gas emission intensity of a typical biomass fixed-bed pyrolysis plant in China is calculated as 1.55E-02 kg CO2-eq/MJ. Carbon cycle of the whole process was investigated and found that if 41.02% of the biochar returns to the field, net greenhouse gas emission is zero indicating the whole carbon cycle may be renewable. A biomass pyrolysis scenario analysis was also conducted to assess exhaust production, transportation distance and the electricity-generation structure for background information applied in the formulation of national policy. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1580 / 1590
页数:11
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