Simulation and optimization of shale gas purification process by sensitivity analysis

LI Weida; LIU Linlin; ZHANG Lei; WANG Shaojing; DU Jian

doi:10.11949/j.issn.0438-1157.20171442

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Simulation and optimization of shale gas purification process by sensitivity analysis

更新时间：2025-12-10

- Simulation and optimization of shale gas purification process by sensitivity analysis
- CIESC Journal Issue 3, Pages: 1008-1013(2018)
- 作者机构：
  
  大连理工大学化工系统工程研究所,辽宁,大连,116024
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20171442
  CLC： E644
- Online First：05 March 2018，
  
  Published：05 March 2018
- 稿件说明：
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LI Weida, LIU Linlin, ZHANG Lei, et al. Simulation and optimization of shale gas purification process by sensitivity analysis[J]. CIESC Journal, 2018, (3): 1008-1013.
DOI：

LI Weida, LIU Linlin, ZHANG Lei, et al. Simulation and optimization of shale gas purification process by sensitivity analysis[J]. CIESC Journal, 2018, (3): 1008-1013. DOI： 10.11949/j.issn.0438-1157.20171442.

摘要

原料气中酸性气体与水等杂质的脱除净化是页岩气下游加工与利用的基础。应用化工流程模拟软件对页岩气脱酸与脱水流程进行模拟，旨为气体净化工业的实践提供理论与技术指导。在脱酸流程模拟中，采用灵敏度分析的方法讨论并优化了吸收剂再生进料位置、再生塔回流比等参数对脱酸流程的影响。脱水流程模拟中，提出了页岩气水含量与水露点的关联方法，为脱水标准的选取提供依据；采用汽提法解决了高浓度吸收剂的再生问题，使流程能够满足更高的脱水要求。

Abstract

Removal of acid gases and moisture in raw shale gas is one basic requirement of shale gas downstream processing and utilization. Shale gas sweetening and dehydration process were simulated by software Aspen Plus v8.6 in order to provide theoretical and technical guidance for shale gas purification industry. In sweetening process

sensitivity analysis was used to analyze and optimize process parameters such as feed stage of absorbent regeneration and reflux ratio of regenerator. In dehydration process

correlation method between water content and water dew point of shale gas was proposed which provided a foundation to determine dehydration specification. Moreover

stripping gas was employed to regenerate highly concentrated absorbent and to meet high dehydration requirements for the process.

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