摘要
某公司采用浅冷油吸收法干气回收专利技术新建了一套C_(1)/C_(2)分离装置,以正丁烷为吸收剂吸收干气中的碳二馏分,再以重石脑油为吸收剂回收燃料气中夹带的碳四馏分,得到富乙烷气、轻烃和粗氢气分别送入乙烯装置、液化气分离装置和PSA装置。该分离装置规模达到了1.6 Mt/a,可以实现将20 Mt/a炼化一体化项目中炼油装置的干气全部加工。装置投产运行1年后进行了标定,结果显示,乙烷回收率和纯度分别达到了92.7%和93.7%,产品分布良好,综合能耗达标,表明该技术的选择成熟可靠,值得推广应用。
A company has built a new set of C_(1)/C_(2)separation unit using the patented shallow cold oil absorption method for dry gas recovery technology licensed by Beijing Research Institute of Chemical Industry,which uses n-butane as the absorbent to absorb C_(2)fraction in the dry gas,and then uses heavy naphtha as the absorbent to recover C4 fractions entrained in the fuel gas to obtain ethane-rich gas,light hydrocarbon and crude hydrogen,which are sent to the ethylene unit,liquefied gas separation unit and PSA unit,respectively.The scale of the unit reaches 1.6 Mt/a,which can process all the dry gas of the refining unit in the 20 Mt/a refining and chemical integration project.The unit runs stably after startup,and is calibrated after one year of operation.The results show that the recovery rate and purity of ethane reaches 92.7%and 93.7%,respectively.The product distributes well,and the comprehensive energy consumption meets the standard.It is verified that this technology is mature and reliable,and it is worthy of popularization and application.
作者
魏文
田海波
王大为
张灵
WEI Wen;TIAN Hai-bo;WANG Da-wei;ZHANG Ling(Zhejiang Petroleum&Chemical Co.,Ltd.,Zhoushan 316000,China)
出处
《现代化工》
CAS
CSCD
北大核心
2024年第3期235-239,共5页
Modern Chemical Industry
