低浓度煤层气深冷液化精馏塔设计的力学分析.pdfVIP

Vol郾43 No郾1 矿业安全与环保 第43卷摇 第1期 Feb郾2016 摇 摇 摇 摇 摇 摇 摇 摇 摇 MINING SAFETY ENVIRONMENTAL PROTECTION摇 摇 摇 摇 摇 摇 摇 2016年2月 陈金华.低浓度煤层气深冷液化精馏塔设计的力学分析[J].矿业安全与环保,2016,43(1):34-37. 文章编号:1008-4495(2016)01-0034-04 开开发发设设计计 低浓度煤层气深冷液化精馏塔设计的力学分析 陈金华1,2 (1.瓦斯灾害监控与应急技术国家重点实验室,重庆400037;2. 中煤科工集团重庆研究院有限公司,重庆400037) 摘要:根据精馏塔内实际接近最小热力学状况的概念,对低浓度煤层气深冷液化装备的精馏塔设 计进行了热力学和水力学分析,提出以总组合曲线确定精馏塔设计参数的方法。 实际案例分析表明, 合理的精馏塔设计参数可有效降低操作电耗和有效能损失,并消除精馏塔的操作瓶颈,最终实现节能。 关键词:低浓度煤层气;液化;精馏塔;总组合曲线;力学分析;数值模拟 + 中图分类号:TD712 郾67;TE645摇 摇 摇 文献标志码:A摇 摇 摇 网络出版时间:2016-02-02 19:21 网络出版地址:http:/ / / kcms/ detail/ 50.1062.TD1921.018.html Mechanical Analysis on Design of Distillation Column Used in Low-concentration Coal-bed Gas Cryogenic Liquefaction Device CHEN Jinhua1,2 (1. State Key Laboratory of Gas DisasterMonitoring and Emergency Technology,Chongqing400037,China; 2. China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing400037,Chnia) Abstract:Accordingtotheconceptofpracticalnearminimumthermodynamiccondition (PNMTC),thermalandhydraulic analysiswere carried out on the distillation column which is used in low-concentration coal-bed gas cryogenic liquefaction device,and by using column grand composite curves (CGCCs),the method for determining the design parameters of the distillation column was put forward. The analysis on the actual cases showed that the reasonable design parameters of the distillation column couldeffectivelyreducetheoperatingpowerconsumptionandenergyloss,eliminatetheoperatingbottlenecks of the distillation column andfinally achieve the energy saving. Keywords:low-concentration co