炼油技术与工程 ›› 2021, Vol. 51 ›› Issue (1): 6-9.

• 加工工艺 • 上一篇    下一篇

催化裂化油浆固液分离新技术开发

林崧1, 陈强2*, 朱亚东3, 盛维武2, 朱伟3, 李小婷2, 魏嘉2   

  1. 1.中国石油化工股份有限公司炼油事业部,北京市 100027;
    2.中石化炼化工程(集团)股份有限公司洛阳技术研发中心,河南省洛阳市 471003;
    3.中国石油化工股份有限公司荆门分公司,湖北省荆门市 448000
  • 收稿日期:2020-05-25 修回日期:2020-10-21 出版日期:2021-01-15 发布日期:2021-07-16
  • 通讯作者: * 陈强,高级工程师,从事石油化工设备研究。E-mail:chenqiang.segr@sinopec.com。
  • 作者简介:林崧,高级工程师,从事炼油特种油技术管理工作。E-mail:linsong@sinopec.com。

Development of new technology for solid-liquid separation of FCC slurry

Lin Song1, Chen Qiang2, Zhu Yadong3, Sheng Weiwu2, Zhu Wei3, Li Xiaoting2, Wei Jia2   

  1. 1. SINOPEC Petroleum Refinery Department, Beijing 100027;
    2. SEG Luoyang R & D Center of Technology, Luoyang, Henan 471003;
    3. SINOPEC Jingmen Company, Jingmen, Hubei 448000
  • Received:2020-05-25 Revised:2020-10-21 Online:2021-01-15 Published:2021-07-16

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摘要： 针对现有催化裂化油浆脱固技术存在的易堵塞、运行时间短的问题,开发了一种高效的组合油浆脱固技术:采用一级预涂过滤解决油浆内胶团堵塞滤管问题,二级旋错流精滤保证滤后油浆固含量达标。建设了一套处理规模为1 m3/h的撬装式工业侧线试验装置,对某炼油厂的催化裂化油浆进行脱固处理。通过近3个月的工业侧线试验,结果表明,采用该组合过滤技术后,滤后油浆平均固含量为48 μg/g,平均固体脱除率达到98.6%,实现油浆回收率99.03%。在实现油浆脱固的同时,能够减少过滤管内堵塞,延长油浆过滤装置的运行时间。

关键词: 催化裂化油浆, 堵塞机理, 固液分离, 预涂过滤, 旋错流精滤

Abstract: In order to solve the problems of easy blockage and short operation time in existing FCC slurry filtration technology, an efficient combined slurry filtration technology is developed. One stage precoat filtration is used to solve the problem of blockage filter tube by micelles in the slurry, and the second rotary cross flow fine filtration is adopted to ensure that the solid content of the filtered slurry reached the standard. A removable industrial side line test device with a processing capacity of 1 m3/h is built to filter the catalytic oil slurry of a refinery. The industrial side line test results after nearly three months show that the combined filtration technology can achieve an average solid content of the filtered slurry 48 μg/g and an average solid removal rate of 98.6%, and the oil slurry recovery rate of 99.03%. On the premise of achieving the slurry desolidated, it can effectively reduce the blockage in the filter tube and prolong the operation time of the slurry filtration device.

Key words: FCC slurry, plugging mechanism, solid-liquid separation, precoat filtration, rotary cross flow fine filtration