某天然气脱硫脱碳装置溶剂配比优化研究
Research on Solvent Composition Optimization for Certain Natural Gas Desulfurization and Decarburization Unit
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- 引用格式:
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王治红,颜丽.某天然气脱硫脱碳装置溶剂配比优化研究[J].天然气与石油,2015,33(3):0.doi:
Wang Zhihong, Yan Li.Research on Solvent Composition Optimization for Certain Natural Gas Desulfurization and Decarburization Unit[J].Natural Gas and Oil,2015,33(3):0.doi:
- DOI:
- 作者:
- 王治红 颜丽
Wang Zhihong, Yan Li
- 作者单位:
- 西南石油大学化学化工学院
College of Chemistry and Chemical Engineering, Southwest Petroleum University
- 关键词:
- 脱硫脱碳;有机硫;模拟;MDEA;能耗
Desulfurization and decarbonization: Organic sulfur; Simulation; MDEA; Energy consumption
- 摘要:
- 为降低能耗和提高硫黄回收质量,采用环丁砜、MDEA、DIPA和水的混合物做脱硫脱碳溶剂并通过过程模拟对溶剂配比进行优化。首先基于HYSYS中建立的工艺模型确定溶剂中环丁砜的含量,再该模型优化剩余组分(MDEA、DIPA和水)的配比。研究表明:环丁砜质量分数达到36 即可实现有机硫的有效脱除;优化后的溶剂质量配比为环丁砜∶MDEA∶DIPA∶水=36∶36∶0∶28,该溶液配比在保证净化气满足GB 17820-2012《天然气》二类气指标的前提下可降低能耗及提高硫黄回收率,经济效益显著。
关键词:In order to reduce energy consumption and improve sulfur recoverγ quality, adopted is mixture of sulfolane, MDEA, DIPA and water as desulfurization and decarbonization solvent and optimized are solvent ratios by process simulation. By establishing process model with HYSYS, firstly determined is the content of sulfolane in the solvent and secondly optimized are ratios of MDEA, DlPA and water. Research results show that when the mass fraction of sulfolane reaches 36%, organic sulfur can be removed effectively. The mass ratios of optimized solvent is: sulfolane:MDEA:DlPA:water = 36:36:0:28. Purified gas which is produced with these optimized ratios can be qualified as the second class gas by GB 17820-2012 Natural Gas. Moreover, application of optimized ratios can reduce energy consumption and improve sulfur recovery quality and economic benefit.