摘要
针对液化石油气甲硫醇超标的问题,文章以某轻烃站为研究对象,对其现有工艺流程进行分析,提出3种工艺改造路线,并进行取样测试,对其改造工艺适用性进行分析。结果表明:使用MDEA+UDS-2混合脱硫法,当压力低于2.5 MPa时,其脱硫效果较差;使用甲酮类杂环化合物试剂脱硫法,甲硫醇脱除率可达83%,但药剂腐蚀性较强;使用13X/4A分子筛混填脱硫法,考虑其换填量,有机硫脱除率可达80%,保证脱水效果的同时,达到脱硫目的。即13X/4A分子筛的混合装填可实现脱水脱硫醇工艺的一体化,相关研究结果可为油田改造及新建有机硫脱除工艺提供新的思路。
Aiming at the problem of excessive methanethiol in liquef ied petroleum gas,a light hydrocarbon station is taken as the research object,and its existing process flow is analyzed.Three process transformation routes are proposed,and sampling tests are carried out to analyze the applicability of the transformation process.The results show that the desulfurization effect of MDEA+UDS-2 mixed desulfurization method is poor when the pressure is lower than 2.5 MPa.Ketone heterocyclic compound reagent desulfurization method,the removal rate of methyl mercaptan can reach 83%,but the agent is more corrosive;in the mixed 13X/4A molecular sieve desulfurization method,considering its replacement amount,the organic sulfur removal rate can reach 80%,ensuring the dehydration effect and achieving the desulfurization purpose.The mixed loading of 13X/4A molecular sieves can realize the integration of dehydration and mercaptan removal process.For the oilf ield,the relevant research results can provide new ideas for the transformation and new organic sulfur removal process.
作者
杨雅冰
YANG Yabing(Chengdu Branch of SINOPEC Petroleum Engineering Corporation,Chengdu 610000,China)
出处
《化工管理》
2025年第10期157-160,共4页
Chemical Management
关键词
分子筛
甲硫醇
脱水
脱硫醇
液化石油气
molecular sieve
methanethiol
dehydration
desulfurization
liquef ied petroleum gas
