乙烯工业 ›› 2020, Vol. 32 ›› Issue (4): 39-42.

• 工业技术 • 上一篇    下一篇

双碱洗塔处理能力和效果分析

     

  1. 中国石油天然气股份有限公司大庆石化分公司,黑龙江 大庆 163714
  • 收稿日期:2020-01-20 修回日期:2020-09-01 出版日期:2020-12-25 发布日期:2021-01-04
  • 作者简介:隋婷,女,2009年毕业于大庆石油学院环境工程专业,学士,主要从事乙烯生产运行与节能减排研究工作,工程师。

Analysis on Processing Capacity and Effect of Double Caustic Wash Towers

Sui Ting   

  1. PetroChina Daqing Petrochemical Company, Daqing, Heilongjiang, P.C.163714
  • Received:2020-01-20 Revised:2020-09-01 Online:2020-12-25 Published:2021-01-04

摘要:

对比某新建600 kt/a乙烯装置的轻烃原料和石脑油原料组成,得出加工轻烃原料产品收率优势明显。由于油田轻烃中的酸性气体CO2含量超出装置设计处理能力,增加1座碱洗塔,采用双塔碱洗,达到增强装置抗CO2干扰和轻烃处理能力的双重目的。项目实施后,装置抗CO2干扰能力由2 000 mg/L提升到4 000 mg/L,轻烃处理能力由20 040 t/a提升到430 162 t/a,吨轻烃耗碱量由163.87 kg降到13.70 kg

关键词: 双碱洗塔 ,  , 轻烃 ,  , 二氧化碳

Abstract:

Comparing the composition of light hydrocarbons with that of naphtha as the raw materials to a grassroots 600 kt/a ethylene plant, it was concluded that processing light hydrocarbons has obvious advantages in terms of product yield. Since the CO2 content of light hydrocarbons in oil fields exceeded the design processing capacity of the plant, a caustic wash tower was installed so that double caustic wash towers were used to achieve the dual purposes of enhancing the anti-CO2 interference capability and improving the light hydrocarbon processing capacity of the plant. After the implementation, the anti-CO2 interference capability was increased from 2000 mg/L to 4000 mg/L, the light hydrocarbon processing capacity was increased from 20,040 t/a to 430,162 t/a, and the caustic consumption per ton of light hydrocarbons was reduced from 163.87 kg to 13.70 kg.

Key words: double caustic wash towers, light hydrocarbon, carbon dioxide/CO2