摘要
针对中国石油独山子石化公司乙烯装置裂解气压缩机(K-3101)结焦问题为切入点,阐述了注洗油、注水和注阻聚剂对结焦的抑制机理,并对K-3101高压缸进行轴向力平衡分析。分析结果表明:裂解气压缩机叶轮及其内部件的结焦与其轴向位移存在直接关系,且结焦的严重程度与轴位移的大小正相关。通过段间注水技术、优化阻聚剂的注入量及洗油注入时间可有效抑制裂解气中聚合物在压缩机叶轮及部件上的累积,从而使轴向位移逐渐降低。
To solve the coking problem of cracking gas compressor(K-3101)in the ethylene plant at PetroChina Dushanzi Petrochemical Company,this paper introduces the coking inhibition mechanism of wash oil injection,water injection and polymerization inhibitor injection,and analyzes the axial force balance of high pressure cylinder(K-3101).The result shows that there is a direct relationship between the coking and the axial displacement of the impeller and internals of cracking gas compressor,and the severity of coking is positively correlated with the magnitude of axial displacement.By adopting inter-stage water injection technology and optimizing polymer inhibitor injection amount and wash oil injection time,the accumulation of polymer on the impeller and internals of compressor can be effectively inhibited,so that the axial displacement will gradually decrease.
作者
洪琨
刘泽涵
曾飞鹏
刘智存
张元化
Hong Kun;Liu Zehan;Zeng Feipeng;Liu Zhicun;Zhang Yuanhua(PetroChina Dushanzi Petrochemical Company,Dushanzi,Xinjiang,P.C.833699)
出处
《乙烯工业》
CAS
2018年第4期39-45,68,共8页
Ethylene Industry
关键词
裂解气压缩机
结焦
轴向力
轴位移
cracking gas compressor
coking
axial force
axial displacement
