Life-cycle fossil energy consumption and greenhouse gas emission intensity of dominant secondary energy pathways of China in 2010
Life-cycle fossil energy consumption and greenhouse gas emission intensity of dominant secondary energy pathways of China in 2010
复制标题
2010年中国主要二次能源全生命周期化石能源消费量及温室气体排放强度
DOI：
10.1016/j.energy.2012.12.020
复制
发表时间：
2013-02-01
期刊：
影响因子：
9
通讯作者：
Zhang, Xiliang
中科院分区：
文献类型：
--
作者：
Li, Xin;Ou, Xunmin;Zhang, Xiliang
利用清华生命周期分析模型（TLCAM），采用迭代法计算了2010年中国9种主要二次能源路径的生命周期化石一次能源消费量（FPEC）和温室气体排放强度。温室气体排放强度考虑了三种主要类型的温室气体（CO2、CH 4和N2 O），其中包括原料生产分阶段的非燃烧CH 4泄漏。我们发现了以下内容。(1)获得以每兆焦耳SE为单位的生命周期FPEC强度，并按数量级顺序用于：原煤（仅回收）;原料天然气（NG，仅回收和加工）;原油（回收和加工）;最终煤（最终运输到最终用户）;最终NG（最终运输到最终用户）;柴油;汽油;渣油和电力。(2)虽然其上游温室气体排放强度较小，但其生命周期强度分别为103.5、68.3、81.6、99.3、70.0、101.6、91.7、93.5和226.4克CO2，e/MJ SE（包括直接温室气体排放）。(3)由于中国能源结构中煤炭的总体效率相对较低，且煤炭比例较高，因此中国小企业的FPEC和温室气体排放的生命周期强度高于其他一些国家。(C)2012爱思唯尔有限公司保留所有权利。
Life-cycle fossil primary energy consumption (FPEC) and greenhouse gas (GHG) emission intensity of nine types of dominant secondary energy (SE) pathways for China in 2010 are calculated with iterative methods, using the TLCAM (Tsinghua Life-cycle Analysis Model). Three major types of GHG (CO2, CH4 and N2O) are considered for GHG emission intensity, and non-combustion CH4 leakage during the feedstock production sub-stage is included. We found the following. (1) Life-cycle FPEC intensities in units of per MJ SE are obtained and used, in order of magnitude, for: raw coal (recovered only); raw natural gas (NG, recovered and processed only); raw oil (recovered and processed); final coal (finally transported to end-user); final NG (finally transported to end-user); diesel; gasoline; residual oil and electricity. (2) Although their upstream GHG emission intensities are small, their life-cycle intensities are 103.5, 68.3, 81.6, 99.3, 70.0, 101.6, 91.7, 93.5 and 226.4 g CO2,e/MJ SE, respectively, when direct GHG emissions are included. (3) Life-cycle intensities of both FPEC and GHG emissions for SE in China are higher than those in some other countries, because of the relatively low overall efficiency and high percentage of coal in the national energy mix. (C) 2012 Elsevier Ltd. All rights reserved.