炼油技术与工程 ›› 2025, Vol. 55 ›› Issue (1): 11-15.

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延迟焦化高效转化重质馏分油工艺研究

郑须涛,唐娉玺,席清波,黄凯群,户勇,王宝石   

  1. 中国石化炼化工程(集团)股份有限公司洛阳技术研发中心,河南省洛阳市 471003
  • 收稿日期:2024-07-04 出版日期:2025-01-16 发布日期:2025-02-08
  • 作者简介:郑须涛,硕士研究生,主要研究重油加工及利用。联系电话:13540646886,E-mail:zhengxutao.segr@sinopec.com。

Research on the efficient conversion process of heavy distillate by delayed coking

Zheng Xutao, Tang Pingxi, Xi Qingbo, Huang Kaiqun, Hu Yong, Wang Baoshi   

  1. Luoyang R&D Center of Technology of SINOPEC Engineering (Group) Co., Ltd., Luoyang, Henan 471003
  • Received:2024-07-04 Online:2025-01-16 Published:2025-02-08

摘要:

针对延迟焦化装置加工重质馏分油、催化裂化油浆等高芳烃原料在低温下热转化率较低的问题,提出了延迟焦化高效转化重质馏分油工艺。即将重质焦化循环蜡油与常规减压渣油(减渣)分别在焦化炉内单独加热,焦化循环蜡油加热至500~520℃,减渣加热至490~500℃,二者混合进焦炭塔完成高温深度转化。新工艺可提高减渣和焦化蜡油在焦炭塔内的反应温度,提高原料的一次转化深度,改善产品分布。以焦化循环蜡油为原料,用中试装置研究了减渣与焦化循环蜡油的焦化性能。结果表明:与传统工艺相比,采用新工艺气体收率增加0.71个百分点,液体收率增加2.14个百分点,焦炭收率降低2.85个百分点。


关键词: 延迟焦化装置, 高效转化, 焦化循环蜡油, 重质馏分油

Abstract:

To tackle the problem of low thermal conversion efficiency of high aromatic hydrocarbon such as heavy distillate and oil slurry processed by delayed coking unit at low temperature, a novel delayed coking process for the efficient conversion of heavy distillate has been put forward. In this method, heat the heavy coking cycle gas oil to 500 - 520℃ and the vacuum residue to 490 - 500℃ in the coking heater, and then mix them into the coking tower to complete the high-temperature deep conversion.

Key words: delayed coking unit, efficient conversion, coking cycle gas oil, heavy distillate