苯乙烯抽提工艺中苯乙炔选择性加氢过程优化  

OPTIMIZATION OF SELECTIVE HYDROGENATION OF PHENYLACETYLENE IN STYRENE EXTRACTION PROCESS

作　　者：周羽轩 王建伟 范立成 李祖强 Zhou Yuxuan;Wang Jianwei;Fan Licheng;Li Zuqiang(North Huajin Chemical Industry Group Co.,Ltd.,Panjin,Liaoning 124000)

机构地区：[1]北方华锦化学工业集团有限公司,辽宁盘锦124000

出　　处：《石油炼制与化工》2023年第8期43-50,共8页Petroleum Processing and Petrochemicals

摘　　要：对某公司苯乙烯抽提装置的苯乙炔选择性加氢单元操作过程进行了跟踪研究,考察了氢油比、空速等参数对苯乙炔加氢效果的影响。结果表明:随着氢油比的增大,苯乙烯损失率升高,而苯乙烯聚合是造成其损失率升高的主要原因;随着循环量增加(空速增大),苯乙烯损失率下降。进而,考察了苯乙炔脱除效果对苯乙烯产品颜色的影响,发现加氢单元产品中苯乙炔质量分数超过100μg g时,苯乙烯产品的色号大于10;苯乙炔影响产品颜色的原因在于,其参与了苯乙烯的聚合过程生成双烯类化合物,从而影响了苯乙烯产品的色号。In order to optimize the process of selective hydrogenation of phenylacetylene in extraction of styrene from pyrolysis gasoline,the process of selective hydrogenation of phenylacetylene in a styrene extraction unit was studied,and the effects of hydrogen-oil ratio and space velocity on industrial phenylacetylene selective hydrogenation were investigated.The results showed that the loss of styrene increased with increasing hydrogen-oil ratio,and the main reason was the polymerization of styrene;the loss rate of styrene decreased with the increase of space velocity.It was found that when the content of phenylacetylene was over 100μg g,the chromaticity of styrene product was over 10.The reason why phenylacetylene affected the color of products was that it took part in the polymerization of styrene to produce diene compounds,which affected the chromaticity of styrene products.

关 键 词：苯乙炔 苯乙烯 选择性加氢 损失率 

分 类 号：TQ241.21[化学工程—有机化工]