石油与天然气化工Issue(5)：467-471,477,6.DOI:10.3969/j.issn.1007-3426.2014.05.001
天然气中酸性组分含量升高的脱硫系统优化研究
Optimization of desulphurization system for increased acidic components content in natural gas
摘要
Abstract
Aiming at the inferior product gas quality and frequent equipment troubles due to the increase of acidic components content in natural gas in recent years ,the process of desulphur-ization system after the increase of MDEA solution circulation flow rate was simulated by Aspen HYSYS software .The simulation result demonstrated that it was necessary to increase MDEA solution volume flow rate gradually from 63 .25 m3/h to 102 .85 m3/h to satisfy national stand-ards when the volume fraction of CO2 and H2S was increased from 5 .280% and 0 .028% to 6 .280% and 0 .052% respectively .Key facilities were implemented a series of optimization by the professional softwares of FRI-Tray Rating ,and HTRI Xchanger Suite ,etc .The fluid mechanics performance of amine absorber and regenerator were qualified for different volume flow rates of MDEA solution after calculation .When the volume flow rates increased ,it was feasible schemes to add the same model of lean/rich amine heat exchanger in series and simultaneously change the specification of heat exchange tube to meet the demand and resolve block .Optimized two-level flash device could greatly relieve frequent fluctuation and fixing the high-efficiency corrugated plate demister at inlet could avoid system foaming .关键词
天然气/脱硫/H2S/CO2/甲基二乙醇胺/流程模拟Key words
natural gas/desulphurization/H2S/CO2/MDEA/flowsheet simulation分类
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范峥,刘向迎,黄风林,李稳宏,乔玉龙,闫昭..天然气中酸性组分含量升高的脱硫系统优化研究[J].石油与天然气化工,2014,(5):467-471,477,6.基金项目
西安市科技计划项目“智能数字管理技术开发”（CXY1345（6））；西安石油大学青年科技创新基金项目“靖边气田天然气净化装置模拟与优化研究”（2012BS003）。 （）
