State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; School of Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
School of Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
Sci Total Environ. 2017 Dec 1;599-600:863-872. doi: 10.1016/j.scitotenv.2017.05.006. Epub 2017 May 10.
Transportation liquid fuels production is heavily depend on oil. In recent years, developing biomass based and coal based fuels are regarded as promising alternatives for non-petroleum based fuels in China. With the rapid growth of constructing and planning b biomass based and coal based fuels production projects, sustainability assessments are needed to simultaneously consider the resource, the economic, and the environmental factors. This paper performs multi-scale analyses on the biomass based and coal based fuels in China. The production cost, life cycle cost, and ecological life cycle cost (ELCC) of these synfuels are investigated to compare their pros to cons and reveal the sustainability. The results show that BTL fuels has high production cost. It lacks of economic attractiveness. However, insignificant resource cost and environmental cost lead to a substantially lower ELCC, which may indicate better ecological sustainability. CTL fuels, on the contrary, is lower in production cost and reliable for economic benefit. But its coal consumption and pollutant emissions are both serious, leading to overwhelming resource cost and environmental cost. A shifting from petroleum to CTL fuels could double the ELCC, posing great threat to the sustainability of the entire fuels industry.
液体燃料的运输生产严重依赖于石油。近年来，开发以生物质和煤为基础的燃料被认为是中国非石油基燃料的有前途的替代品。随着生物质和煤基燃料生产项目的建设和规划的快速增长，需要进行可持续性评估，以同时考虑资源、经济和环境因素。本文对中国的生物质和煤基燃料进行了多尺度分析。研究了这些合成燃料的生产成本、生命周期成本和生态生命周期成本（ELCC），以比较它们的优缺点，揭示其可持续性。结果表明，BTL 燃料的生产成本很高。它缺乏经济吸引力。然而，微不足道的资源成本和环境成本导致了大大降低的 ELCC，这可能表明更好的生态可持续性。CTL 燃料则相反，生产成本较低，经济效益可靠。但是它的煤炭消耗和污染物排放都很严重，导致资源成本和环境成本过高。从石油向 CTL 燃料的转变可能会使 ELCC 增加一倍，对整个燃料行业的可持续性构成巨大威胁。
