乙烯工业 ›› 2023, Vol. 35 ›› Issue (2): 9-12.

• 综述 • 上一篇    下一篇

裂解原料中氧化物对乙烯装置的影响

牟欣栋   

  1. 山东寿光鲁清石化有限公司,山东 寿光 262700
  • 收稿日期:2022-06-14 修回日期:2023-01-12 出版日期:2023-06-25 发布日期:2023-07-11
  • 作者简介:牟欣栋,2009年毕业于中国石油大学(华东)化学工程与工艺专业,主要从事炼油和乙烯生产技术管理工作,现任生产技术部副部长,中石化技术能手,工程师。

Influence of Oxide in Ethylene Cracking Raw Materials on Ethylene Plant

Mu Xindong   

  1. Shandong Shouguang Luqing Pertrochemical Co., LTD, Shouguang, Shandong, P.C.262700
  • Received:2022-06-14 Revised:2023-01-12 Online:2023-06-25 Published:2023-07-11

摘要:

对山东某石化乙烯装置裂解原料氧化物超标对装置的影响进行深入分析。裂解原料氧化物超标在裂解炉高温条件下产生甲醇、有机酸、一氧化碳、二氧化碳以及其他氧化物,以上杂质存在严重影响到碳二加氢反应器稳定操作,造成急冷水及裂解气压缩机段间凝液PH值偏低,设备腐蚀加剧和急冷水乳化,缩短炉管的使用寿命,丙烯产品不合格,碱性塔黄油生产量变大,干燥器分子筛吸附能力变差,污染裂解汽油进而影响碳四和碳五产品质量等等。

关键词: 乙烯装置 ,  , 裂解原料 ,  , 氧化物 ,  , 腐蚀 ,  , 产品质量

Abstract:

The influence of excessive oxide in cracking raw materials on the ethylene plant at a petrochemical company in Shandong is analyzed in detail. The excessive oxide in cracking raw materials produces methanol, organic acid, carbon monoxide, carbon dioxide and other oxides at high temperature in cracking furnace. These impurities seriously affect the stable operation of C2 hydrogenation reactor, resulting in the low pH value of quench water and condensate between sections of cracking gas compressor, increased equipment corrosion and quench water emulsification, shorter service life of furnace tube, off-spec propylene product, increased grease production in caustic tower, poor adsorption capacity of molecular sieve of dryer and the pollution of pyrolysis gasoline, thus affecting the quality of C4 and C5 products.

Key words: ethylene plant, cracking raw material, oxide, corrosion, product quality