摘要
介绍了中国石油化工股份有限公司镇海炼化分公司3 Mt/a催化裂化联合装置干气脱硫的生产工艺。从实际生产着手对催化裂化干气脱硫的影响因素进行了分析。结果表明:随着干气脱硫塔操作温度的升高,脱硫后干气中H2S含量随之升高,实际操作中应控制脱硫塔操作温度不高于46℃;在脱硫塔其他操作条件不变的前提下,干气脱硫塔胺液摩尔量与脱硫前干气中H2S,CO2摩尔量之和的比不低于1.8∶1.0,解吸塔解吸气量与再吸收塔干气量之比不大于1∶1时有利于控制脱硫后干气中的H2S含量。
The process of dry gas desulfurization in a 3.0 MM TPY FCC complex of SINOPEC Zhenhai Refining & Chemical Co. , Ltd is introduced. Factors affecting dry gas desulfurization are analyzed for practi- cal production. The results show that, the H2S content in dry gas after the desulfurization increases with the increase of operation temperature of dry gas desulfurization tower. Therefore, the operation temperature of dry gas desulfurization tower should be controlled at no lower than 46 ℃ in operation; On the premise of other conditions remains unchanged for the dry gas desulfurization tower, the mole ratio of amine solution to H2 S and CO2 before desulfurization should be no lower than 1.8: 1, and the flux ratio of desorbed gas in desorption tow- er to dry gas in re-absorption tower should be no greater than l: 1 in order to control the concentration of H2S in desulfurized dry gas.
出处
《炼油技术与工程》
CAS
2014年第1期20-22,共3页
Petroleum Refinery Engineering
关键词
催化裂化
干气脱硫
胺液
解吸气
FCC, dry gas desulfurization, amine solution, desorbed gas