Synthetic natural gas as an alternative to coal for power generation in China: Life cycle analysis of haze pollution, greenhouse gas emission, and resource consumption
Synthetic natural gas as an alternative to coal for power generation in China: Life cycle analysis of haze pollution, greenhouse gas emission, and resource consumption
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DOI：
10.1016/j.jclepro.2017.11.160
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发表时间：
2018-01
影响因子：
11.1
通讯作者：
Y. Man;Yulin Han;Yusha Hu;Sheng Yang;Siyu Yang
中科院分区：
文献类型：
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作者：
Y. Man;Yulin Han;Yusha Hu;Sheng Yang;Siyu Yang
天然气被认为是城市使用燃煤发电（CPG）的更清洁的替代品。由于中国天然气储量不足，煤基合成天然气得到了快速发展。然而，煤基煤制天然气生产过程存在环境污染和排放转移问题。本文采用生命周期评价方法对CPG和SNG两种能源的生产和使用路线进行比较，以期找到降低环境污染和生产成本的合理途径。结果表明，CPG路线在雾霾污染排放、温室气体排放、煤炭资源消耗和生命周期成本方面均优于煤制天然气路线。但是，CPG路线的耗水量远高于SNG路线。煤制气路线更适合在缺水地区采用。
Natural gas is regarded as a cleaner alternative to coal combustion-based power generation (CPG) for urban use. Because of the insufficient natural gas reserve in China, coal-based synthetic natural gas (SNG) has been under rapid development. However, coal-based SNG production process has problems of environmental pollution and emission transfer. This paper uses life cycle assessment to compare the CPG and SNG energy production and usage routes, in order to find a reasonable way to reduce the environmental pollution and production cost. Results show that the CPG route is superior to the SNG route in terms of the haze pollution emissions, greenhouse gases emissions, coal resource consumption and life cycle cost. However, the water consumption of the CPG route is much higher than that of the SNG route. The SNG route is more suitable to adopt in water-deficient areas.