N-甲基二乙醇胺-二乙醇胺复合溶液脱除采出气中的CO2.pdf

化工环保
2012年第32卷第5期
ENVIRONMENTAL PROTECTION OF CHEMICAL INDUSTRY
?397
N-甲基二乙醇胺一二乙醇胺复合溶液脱除
采出气中的Co
彭松水,李清方2,耿拥军,陆诗建,刘海丽
(1.中国石化胜利油田分公司纯梁采油厂,山东博兴256504
2.中国石化胜利油墈察设计研究院有限公司,山东东营257026)
摘要」结合中国石化胜利油田CO2驱现场情况,采用耐压实验装置模拟CO2驱采出气。在中压条件下对
N-甲基二乙醇胺(MDEA)及MDEA与二乙醇胺(DEA)的复合溶液脱除模拟采出气中CO2的效果进行了实
验研究,对吸收饱和液进行了再生实验。在模拟采出气中(CH4):(CO2)=3:7、反应温度为70.0℃、
反应压力为0.5MPa、MDEA-DEA复合溶液中MDEA质量分数为40%、DEA质量分数为2%的条件下,
CO2吸收体积为48.42971L,再生温度为106.0℃,再生能耗为0.01012kW?h/L,再生率为98,84%。
关键词}采出气;二氧化碳;吸收;N-甲基二乙醇胺;二乙醇胺
[中图分类号]TQ413.29[文献标识码]A[文章编号]1006-1878(2012)05-0397-04
Removal of CO, from Produced Gas Using
N-methyldiethanolamine-diethanolamine Complex Solution
Peng Songshi, i Qingfang, Geng Yongjun, Lu Shijian, Liu Haili
(1. Chunliang Oil Production Plant, Shengli Oil Field Co Ltd, SINOPEC, Boxing Shandong 256504, China
2. Shengli Engineering and Consulting Co. Ltd, SINOPEC, Dongying Shandong 257026, China)
Abstract: Considering the field condition of CO2 -EOR(enhanced oil recovery)blocks in Shengli
oilfield, the produced gas containing CO2 was simulated in a pressure device. The effects of
N-methyldiethanolamine(MDEA )solution and n-methyldiethanolamine-diethanolamine(mdea-dea)
complex solution on removal of CO from the simulated produced gas were studied under moderate
pressure, and the experiment on regeneration of saturated absorption liquid was carried out Under the
conditions of(CH ) (O )=3: 7, reaction temperature 70.0 C, reaction pressure O5 Mpa, mass
fraction of MDEA in MDEA-DEA complex solution 40% and mass fraction of DEA in MDEA-DEA
complex solution 2%, the absorption volume ofco is 48.429 71 L, the regeneration temperature is 106.0
C, the regeneration energy cost is 0.010 12 kw.h/L, the regeneration efficiency is 98.84%
Key words: produced gas; carbon dioxide; absorption; N-methyldiethanolamine; diethanolamine
作为CO2最具开发价值的应用领域,油田CO2造成采出液集输管线及设备腐蚀加剧,増加了生产
驱三次采油既可以提高原油采收率又能够实现CO
的有效封存,代表了节能减排的前沿方向,实现了『收稿日期]2012-04-21:「修订日期]2012-06-07
环境效益和经济效益的双丰收。随着CO2驱三『作者简介]彭松水(1962ー),男,湖北省武穴市人,大
次采油技术的大规模推广,CO2驱采出液地面工艺
学,高级工稈师,主要从事油田开发管理。电话18654688
面临一些难题:CO2被注人地下后,约有50%60%
067,电邮pengsongshui.slyt@sinopec.com。联系人:陆诗
建,电话15154613657,电邮lushijian88163.com
封存于地下,剩余的40%~50%则随着油田伴生气
基金项自]国家科技支撑计划项目(2012BAC24B00);
溢出到;由于采出液中同时含有大量CO2和水,中国石化重点科技攻关项目(P1005)