含硫页岩油伴生气脱硫工艺方案研究  

Study on Desulfurization Process Scheme of Associated Gas of Sulfur-bearing Shale Oil

作　　者：李晓宇 孙洪舟 唐林[2] 庄栋[2] 李大伟[2] LI Xiao-yu;SUN Hong-zhou;TANG Lin;ZHUANG Dong;LI Da-wei(School of Petroleum Engineering,Southwest Petroleum University,Sichuan Chengdu 610500,China;Shengli Oilfield Branch Hekou Oil Production Plant,Dongying Shandong 257200,China)

机构地区：[1]西南石油大学石油与天然气工程学院,四川成都610500 [2]胜利油田分公司河口采油厂,山东东营257200

出　　处：《辽宁化工》2023年第4期564-568,共5页Liaoning Chemical Industry

摘　　要：高含硫页岩油伴生气中含有大量的H_(2)S,现有的脱硫处理工艺效果较差,成本较高,外输天然气及产出液中仍含有较多H_(2)S。基于现有的络合铁脱硫工艺,结合运行生产数据,通过HYSYS软件模拟实际操作情况,优化脱硫工艺中的关键参数,进行脱硫方案经济计算,形成一套适合高含硫页岩油伴生气脱硫工艺脱硫处理工艺方案。结果表明:当[Fe^(3+)]=0.050~0.056 mol/L、[Ln^(-)]/[Fe^(3+)]=1.4∶1,吸收液pH值取8.0~9.2,装置中停留时间为2.5~2.8 s,液气比8.0~8.2 L/m3脱硫效果最佳;改造后的工艺投资约2199万元,产生的经济效益约317.5万元/年,投资回收期约6.92年。The associated gas of high sulfur shale oil contains a large amount of H_(2)S.The existing desulfurization treatment process has poor effect and high cost.The natural gas and produced liquid still contain more H_(2)S.Based on the existing complex iron desulfurization process,combined with the operation and production data,HYSYS software was used to simulate the actual operation,the key parameters in the desulfurization process were optimized,and the economic calculation of the desulfurization scheme was carried out,so as to form a set of desulfurization treatment process scheme suitable for the desulfurization process of high sulfur shale oil associated gas.The results showed that when Fe^(3+)concentration was 0.050~0.056 mol·L-1 and[Ln^(-)]/[Fe^(3+)]=1.4∶1,the pH value of the absorption solution was 8.0~9.2,the residence time in the device was 2.5~2.8 s,and the liquid-gas ratio was 8.0~8.2 L·m^(-3),the desulfurization effect was the best;After the transformation,the process investment was about 21.99 million Yuan,the economic benefit was about 3.175 million Yuan per year,and the investment payback period was about 6.92 years.

关 键 词：络合铁脱硫 参数优化 经济计算 仿真模拟 

分 类 号：TQ022.11[化学工程]