文献类型：期刊文献

英文题名：Exergy and economic analyses of indirect coal-to-liquid technology coupling carbon capture and storage

作者：Zhou, Li[1];Duan, Maosheng[1];Yu, Yadong[2]

机构：[1]Tsinghua Univ, Inst Energy Environm & Econ, Beijing 100084, Peoples R China;[2]East China Univ Sci & Technol, Sch Business, Shanghai 200237, Peoples R China

年份：2018

卷号：174

起止页码：87

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20175204575087);WOS:【SSCI(收录号:WOS:000424727100010)，SCI-EXPANDED(收录号:WOS:000424727100010)】；

基金：We are grateful for financial support of this study by the National Natural Science Foundation of China Program (No. 21306099). Comments by the anonymous referees were greatly appreciated.

语种：英文

外文关键词：Coal to liquid; Carbon capture and storage; Exergy; Economic analyses

摘要：Coal-to-liquids (CTL) technology has been developed steadily for producing gasoline and diesel fuels as the demand for energy security issue and liquid fuels in China outpaces production capacities. In this light, given the importance of CO2 emissions in climate change, carbon dioxide capture and storage (CCS) is considered as an integral part of CTL processes. In this study, 01 coupling with CCS technology (CTL-CCS) were simulated using the Aspen Plus software. Based on it, this study conducted exergy and economic analyses to the CTL-CCS system for five different coal types, including anthracite, meager, lean, coking and gas. Results show that the exergy utilization ratios ranged from 40.3% to 43.7%, revealing only a limited effect of the choice of coal type; although anthracite, meager, and gas coal were marginally better. Results also indicate the largest sources of exergy loss to be firstly from gas generation and secondly from the combined process of synthesis and separation. The economic analysis compared the cost, net present value, internal rate of return, and payback period. The cost of liquid fuel produced by CTL-CCS system was in the range from 4117 to 5627 yuan RMB/t, indicating economic feasibility. The system using lean coal revealed the best economic performance, while those using coking coal and gas coal were the second best performers. This research suggests that gas coal can achieve relatively reasonable values for both the exergy utilization ratio and cost in comparison to other coal types processed through a coupled CTL-CCS system. (C) 2017 Elsevier Ltd. All rights reserved.