化工进展 ›› 2020, Vol. 39 ›› Issue (1): 103-111.DOI: 10.16085/j.issn.1000-6613.2019-0550

• 能源加工与技术 • 上一篇    下一篇

C10+重芳烃加氢机理及热力学研究进展

范景新1,2(),苏文利3,郭春垒1,2,孙磊3,马明超1,2,李健1,2,赵训志1,2,臧甲忠1,2,于海斌1,2   

  1. 1. 中海油天津化工研究设计院有限公司,天津 300131
    2. 天津市炼化催化技术工程中心,天津 300131
    3. 山东滨化滨阳燃化有限公司,山东 滨州 256600
  • 收稿日期:2019-04-10 出版日期:2020-01-05 发布日期:2020-01-14
  • 通讯作者: 范景新
  • 作者简介:范景新(1980—),男,博士,高级工程师,研究方向为芳烃化工催化剂的研发及应用。E-mail:fjxin2002@163.com
  • 基金资助:
    中国海洋石油集团有限公司项目(CNOOC-KJ 135 FZDXM 00 LH 009 ZS-2016)

Progress in the hydrogenation mechanism and thermodynamics of C10+ heavy aromatics

Jingxin FAN1,2(),Wenli SU3,Chunlei GUO1,2,Lei SUN3,Mingchao MA1,2,Jian LI1,2,Xunzhi ZHAO1,2,Jiazhong ZANG1,2,Haibin YU1,2   

  1. 1. CNOOC Tianjin Chemical Research and Design Institute Limited Corporation, Tianjin 300131, China
    2. Tianjin Refining and Catalytic Technology Engineering Center, Tianjin 300131, China
    3. Shandong Binyang Gasification Co. , Ltd. , Binzhou 256600, Shandong, China
  • Received:2019-04-10 Online:2020-01-05 Published:2020-01-14
  • Contact: Jingxin FAN

摘要:

随着国内C10+重芳烃产量逐年提升,炼厂对提质增效需求日益高涨,对C10+重芳烃高效转化利用技术的需求也日益迫切。由于C10+重芳烃富含稠环芳烃,而加氢是稠环芳烃转化为单环芳烃的重要手段,因此,C10+重芳烃中代表性芳烃的加氢机理和热力学研究日趋受到重视。本文从C10+重芳烃原料性质分析入手,详细阐述了C10+重芳烃中代表性芳烃的加氢反应路径及机理、加氢反应热力学的研究进展,以期为实际应用和催化剂开发提供参考。稠环芳烃组成对适宜的加氢反应条件、单环芳烃产品收率、氢耗、反应放热等都有较大影响,为了最大化生产低碳芳烃、降低氢耗,需要根据重芳烃的组成,从原料预切割/预处理、催化剂结构及活性中心、工艺条件这3个方面同时着手进行优化,进而实现对加氢过程的定向调控。

关键词: 催化, 加氢, 热力学, 选择性, 优化

Abstract:

With the increasing yield of C10+ heavy aromatics, the refinery’s demand for quality and efficiency enhancement in production is growing significantly. Meanwhile, the need for effective conversion and utilization of C10+ heavy aromatics is becoming more and more urgent. Since C10+ heavy aromatic hydrocarbons are rich in polycyclic aromatic hydrocarbons(PAHs), and hydrogenation is an important means of converting PAHs into monocyclic aromatic hydrocarbons, the studies on the hydrogenation mechanism and thermodynamics of typical aromatics in C10+ heavy aromatics have attracted increasing attention. Starting by analyzing the properties of C10+ heavy aromatic hydrocarbons, we described the research progress in the hydrogenation reaction path and the mechanism of typical aromatics in detail, as well as the hydrogenation reaction thermodynamics, which could provide reference for their practical application and the catalyst development. We also pointed out that the composition of PAHs has a great influence on the suitable hydrogenation conditions, the yield of monocyclic aromatics, hydrogen consumption, and reaction heat release. In order to maximize the production of light aromatics and to reduce hydrogen consumption, optimization should be carried out by considering raw material precutting/pretreatment, catalyst structure and activity center, and process conditions together according to the composition of heavy aromatic hydrocarbons, so as to realize directional regulation of hydrogenation process.

Key words: catalysis, hydrogenation, thermodynamics, selectivity, optimization

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