Petroleum Refinery Engineering ›› 2025, Vol. 55 ›› Issue (6): 20-23.

• PROCESSING • Previous Articles     Next Articles

The influence of wax oil hydrogenation depth on the products distribution of deep catalytic cracking unit

Sun Lei   

  1. SINOPEC Anqing Petrochemical Company, Anqing, Anhui 246000
  • Online:2025-06-15 Published:2025-06-20

蜡油加氢深度对催化裂解装置产品分布影响规律

孙磊   

  1. 中国石油化工股份有限公司安庆分公司,安徽省安庆市 246000
  • 作者简介:孙磊,高级工程师,本科,主要从事炼油工艺技术管理工作。E-mail:sunlei.aqsh@sinopec.com。

Abstract:

The 2.2 Mt/a waxy oil hydrotreating unit of SINOPEC Anqing Petrochemical Company is constructed using the waxy oil hydrotreating RVHT technology developed by SINOPEC Research Institute of Petroleum Processing Co., Ltd. (RIPP) and is designed by SINOPEC Guangzhou Engineering Co., Ltd. The unit was first started in September 2009 and has been running continuously and steadily until the fifth cycle. The RN-32V waxy oil hydrotreating catalyst developed by RIPP is used to produce refined waxy oil with sulfur mass fraction less than 0.14% from a mixture of straight-run waxy oil and coking gas oil as feedstock, which are used as feedstock of deep catalytic cracking unit. Compared with the processing of unhydrogenated waxy oil, the product distribution of the catalytic cracking unit is significantly improved. With the increase of waxy oil hydrogenation reaction depth, the hydrogen content of hydrogenated waxy oil increases, and the yield of LPG and gasoline in the catalytic cracking unit increases, while the yield of diesel oil decreases, which is conducive to improving the adaptability of crude oil processing, reducing the ratio of diesel to gasoline, and improving economic benefits.

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摘要:

中国石油化工股份有限公司安庆分公司2.2 Mt/a蜡油加氢处理装置采用中国石化石油化工科学研究院有限公司(RIPP)研发的蜡油加氢处理(RVHT)技术,由中石化广州工程有限公司工程设计。该装置于2009年9月首次开工,已连续稳定运行至第5个周期,采用RIPP研发的RN-32V蜡油加氢催化剂,以直馏蜡油和焦化蜡油的混合油为原料,生产硫质量分数不大于0.14%的精制蜡油产品并将其作为催化裂解装置的原料,相对于加工未加氢蜡油,催化裂解装置的产品分布显著改善。蜡油加氢反应深度提高,加氢蜡油的氢含量增大,催化裂解装置的液化石油气和汽油收率上升,柴油收率下降,有利于提高企业原油加工的适应性,降低企业的柴汽比,提高经济效益。

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