Determination of Salt Impurities in MDEA Solution Used in Desulfurization of Highly Sulphurous Natural Gas

作     者：Liu Yucheng Zhang Bo Chen Mingyan Wu Danni Zhou Zheng 

作者机构：School of Chemistry and Chemical Engineering Southwest Petroleum University Puguang Branch of Zhongyuan Oilfield Company 

出 版 物：《China Petroleum Processing & Petrochemical Technology》 (中国炼油与石油化工（英文版）)

年 卷 期：2015年第17卷第3期

页      面：25-31页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0821[工学-纺织科学与工程] 081702[工学-化学工艺] 0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Financial support received from the Major National Science and Technology Projects of China (No. 2011ZX05017) SWPU Science & Technology Innovation Youth Team for Pollution Control of Oil & Gas Fields (No. 2013XJZT003) 

主　　题：natural-gas purification plant MDEA solution salt impurities full analysis ion chromatograph 

摘      要：The foaming phenomenon of N-methyldiethanolamine(MDEA) solution used in desulfurization process occurs frequently in the natural-gas purification plant. The foaming phenomenon has a strong impact on operation of the process unit. The salt impurities are the main reason for causing the foaming of MDEA solution, so the full analysis of salt impurities is necessary. A method for comprehensive analysis of salt impurities in MDEA solution used in desulfurization process was established. Anions and non-metallic cations of MDEA solution were determined by different conditions of ion chromatograph, respectively. Metallic cations of the solution were detected by atomic absorption spectrophotometer with the N2O-C2H2 flame absorption. The analytical results of salt impurities in the desulfurization solution can provide a theoretical basis for an accurate analysis of the factors affecting the foaming of MDEA to unveil further control measures.