低浓度煤层气深冷液化精馏塔设计的力学分析  

Mechanical Analysis on Design of Distillation Column Used in Low-concentration Coal-bed Gas Cryogenic Liquefaction Device

作　　者：陈金华[1,2] 

机构地区：[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

出　　处：《矿业安全与环保》2016年第1期34-37,49,共5页Mining Safety & Environmental Protection

基　　金："十二五"国家科技重大专项(2011ZX05041-004-002)

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。According to the concept of practical near minimum thermodynamic condition ( PNMTC) , thermal and hydraulic analysis were 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 could effectively reduce the operating power consumption and energy loss, eliminate the operating bottlenecks of the distillation column and finally achieve the energy saving.

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 

分 类 号：TD712.67[矿业工程—矿井通风与安全] TE645[石油与天然气工程—油气加工工程]