Thermodynamic Analysis on of Skid-Mounted Coal-bed Methane Liquefaction Device using Cryogenic Turbo-Expander 机翻标题: 暂无翻译,请尝试点击翻译按钮。

会议集名/来源
IOP Conference Series: Materials Science and Engineering
出版年
2000
会议日期
2017-07-09 - 2017-07-13
作者
Chen, Shuangtao 1;Niu, Lu 1;Zeng, Qiang 2;Li, Xiaojiang 2;Lou, Fang 2;Chen, Liang 1;Hou, Yu 1 1 State Key Laboratory of Multiphase Flow in Power Engineering, Xi'An Jiaotong University, 710049, China stchen.xjtu@xjtu.edu.cn 2 Xinjiang Coal Research Institute, 830091, China
摘要
Coal-bed methane (CBM) reserves are rich in Sinkiang of China, and liquefaction is a critical step for the CBM exploration and utilization. Different from other CBM gas fields in China, CBM distribution in Sinkiang is widespread but scattered, and the pressure, flow-rate and nitrogen content of CBM feed vary significantly. The skid-mounted liquefaction device is suggested as an efficient and economical way to recover methane. Turbo-expander is one of the most important parts which generates the cooling capacity for the cryogenic liquefaction system. Using turbo-expander, more cooling capacity and higher liquefied fraction can be achieved. In this study, skid-mounted CBM liquefaction processes based on Claude cycle are established. Cryogenic turbo-expander with high expansion ratio is employed to improve the efficiency of CBM liquefaction process. The unit power consumption per liquefaction mole flow-rate for CBM feed gas is used as the object function for process optimization, compressor discharge pressure, flow ratio of feed gas to turbo-expander and nitrogen friction are analyzed, and optimum operation range of the liquefaction processes are obtained.
机翻摘要
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关键词
Coal liquefaction (major);Coal bed methane;Coal deposits;Cooling;Cryogenics;Gas compressors;Gas industry;Liquefaction;Methane;Natural gas fields;Nitrogen;Optimization;Proven reserves;Thermoanalysis;Turboexpanders
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