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《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:

2024年6期

页码:

455-459

栏目:

出版日期:

2024-11-10

文章信息/Info

Title:

Processing route feasibility of catalytic heavy gasolineas feedstock to increase aromatics

文章编号:

1009-0045（2024）06-0455-05

作者:

代恩东1; 高伟1; 2; 刘亭亭3*; 毛玲娟3; 4; 夏凌海1; 李伟龙5

1.浙江石油化工有限公司，浙江 舟山 316000；2.浙江大学 工程师学院，浙江 杭州 310000；3.浙江省绿色石化技术创新中心，浙江 宁波 315048；4.华北电力大学 能源动力与机械工程学院，北京 102208；5.黄河三角洲京博化工研究院有限公司，山东 滨州 256603

Author(s):

DAI En-dong1; GAO Wei1; 2; LIU Ting-ting3; MAO Ling-juan3; 4; XIA Ling-hai1; LI Wei-long5

1.Zhejiang Petroleum & Chemical Co Ltd，Zhoushan 316200，China；2.School of Engineering，Zhejiang University，Hangzhou 310000，China；3.Zhejiang Provincial Innovation Center of Green Petrochemical Technology，Ningbo 315000，China；4.Energy，Power and Mechanical Engineering College，North China Electric Power University，Beijing 102208，China；5.Yellow River Delta Jingbo Chemical Research Institute Co Ltd，Binzhou 256603，China

关键词:

催化裂化; 加氢处理; 连续催化重整; 催化重汽油; 重石脑油; 模拟与优化; 芳烃

Keywords:

fluid catalytic cracking; hydro-treating; continuous catalytic reforming; catalytic heavy gasoline; heavy naphtha; simulation and optimization; aromatics

分类号:

TE 624.4

DOI:

10.19909/j.cnki.ISSN1009-0045.2024.06.0455

文献标识码:

B

摘要:

为了实现减油增化、提高化工产品的附加值，浙江石油化工有限公司利用Petro-SIM流程模拟软件对40 Mt/a炼化一体化项目的催化裂化（FCC）装置、加氢预处理装置、加氢脱硫装置、加氢精制装置、连续催化重整（CCR）装置、芳烃联合装置的工艺生产路线进行了联合模拟与优化，提出了催化重汽油作原料增产芳烃的优化加工路线，并验证了其可行性。结果表明：首先调整FCC装置分馏塔操作参数，以控制催化汽油馏分的终馏点不超过175 ℃，接着经过加氢预处理装置分馏塔的处理之后，将85~175 ℃馏分的催化重汽油送入重石脑油加氢预处理装置加工，所得精制重石脑油进入CCR装置，最后C≥6重整生成油进入芳烃联合装置便可生产苯、对二甲苯（PX）；当重石脑油加氢预处理装置掺炼质量分数13%的催化重汽油后，精制重石脑油芳潜质量分数提高了6.7个百分点，C≥6重整生成油的链烷烃质量分数下降了1.1个百分点，而其芳烃质量分数提高了1.2个百分点；采用上述优化加工路线后，共加工催化重汽油19.64万t/a，增产的苯、PX分别为2.86，9.45万t/a。

Abstract:

In order to reduce the gasoline product and increase the added value of chemical products ，the Petro-SIM process simulation software was used to jointly simulate and optimize the processing routes of fluid catalytic cracking（FCC） unit， hydro-pretreating unit，hydro-desulfurizating unit，hydro-refining unit，continuous catalytic reforming（CCR） unit，and aromatics complex unit of 40 Mt/a refining and integration project of Zhejiang Petroleum & Chemical Co Ltd. Then an optimal processing route for increasing aromatics by using catalytic heavy gasoline as feedstock was proposed，and its feasibility was verified. The results showed that：firstly，the fractionating column operating parameters of FCC unit were adjusted to control the final distillation point of the catalytic gasoline fraction not exceeding 175 ℃，then after being treated by the distillating column of the hydro-pretreatment unit，the catalytic heavy gasoline of 85-175 ℃ was sent to the heavy naphtha hydro-pretreating unit for processing，and then successively the refined heavy naphtha was obtained and sent into CCR unit，finally，the C≥6 reforming oil was sent to the aromatics complex unit to produce benzene and xylene (PX). When the blending mass fraction of the catalytic heavy gasoline at 13% in the heavy naphtha hydro-pretreating unit，the potential aromatic mass fraction of refined heavy naphtha increased by 6.7 percentage points，meanwhile，the mass fraction of alkanes in the C≥6 reforming oil decreased by 1.1 percentage points，and yet the mass fraction of corresponding aromatics increased by 1.2 percentage points. After carrying out the above optimal processing route，a total of 196.4 kt/a catalytic heavy gasoline was processed，and the increase of benzene and PX was 28.6，94.5 kt/a，respectively.

参考文献/References

［1］ 夏伯恩，刘青菊. 催化中汽油作为连续重整装置原料的分析研究［J］. 中国化工贸易，2020，12（3）：220-222.［2］ 吕家欢.对我国炼油化工一体化发展的几点思考［J］.国际石油经济，2004（5）：23-29.［3］ 樊春江.发挥炼化一体化优势，优化资源利用，提高经济效益［J］.甘肃科技纵横，2006（1）：38.［4］ 焦鸿亮，索凌云. 优化DSO工艺技术的几点措施［J］. 现代班组，2022（5）：43.［5］ 邵文，李小平，袁春华，等. 掺炼催化裂化汽油的300 kt/a催化重整装置设计与开工［J］. 石油炼制与化工，2015，46（5）：44-47.［6］ 许绍东，代恩东，魏文，等. 浆态床重石脑油加工路线优化研究［J］. 石化技术与应用，2024，41（3）：223-229.

备注/Memo

备注/Memo:

浙江石油化工有限公司科学研究与技术开发项目（ZSH-RD-23-025；ZSH-RD-23-027）

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更新日期/Last Update: 2024-11-10