化工进展 ›› 2018, Vol. 37 ›› Issue (04): 1374-1380.DOI: 10.16085/j.issn.1000-6613.2017-1160

• 能源加工与技术 • 上一篇    下一篇

供氢剂辅助重油热改质技术研究进展

龚旭, 薛鹏, 刘贺, 陈坤, 郭爱军, 王宗贤   

  1. 中国石油大学(华东)化学工程学院, 重质油国家重点实验室, 山东 青岛 266580
  • 收稿日期:2017-06-13 修回日期:2017-07-14 出版日期:2018-04-05 发布日期:2018-04-05
  • 通讯作者: 王宗贤,教授,研究方向为石油与天然气加工。
  • 作者简介:龚旭(1990-),男,硕士研究生。E-mail:gx_upc@163.com。
  • 基金资助:
    中国博士后科学基金(2016M602219)、山东省自然科学基金博士基金(ZR2017BB021)、青岛市博士后应用研究项目(2016224)及重质油国家重点实验室项目(SLKZZ-2017003)。

Progress on the use of hydrogen donors for upgrading of heavy oil

GONG Xu, XUE Peng, LIU He, CHEN Kun, GUO Aijun, WANG Zongxian   

  1. State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum(East China), Qingdao 266580, Shandong, China
  • Received:2017-06-13 Revised:2017-07-14 Online:2018-04-05 Published:2018-04-05

摘要: 重油高黏度和高密度的特点给重油开采、集输和加工带来极大不便,一般都要先对其进行降黏处理。供氢热裂化是在传统减黏裂化基础上加入供氢剂,以改善减黏裂化加工深度不大、装置易生焦、产品安定性差等问题的一种高效重油改质降黏技术。文章首先介绍了重油管输技术基本类型,然后从供氢剂的供氢机理、供氢剂加入的作用、供氢剂的基本类型、供氢剂可供氢量的计算方法和供氢剂的运用等方面进行了综述。对于供氢剂的选择需要根据工艺条件和供氢剂性质等方面综合分析。指出在不生焦的前提下,尽可能提高改质苛刻度可有效提升重油改质效果,而影响生焦和抑制结焦的关键在于来自供氢剂的活泼氢能否及时封闭沥青质自由基。

关键词: 供氢剂, 重油, 黏度, 可供氢量, 测定方法

Abstract: Due to high viscosity and high density of heavy oil, the viscosity reduction had firstly to be done to ensure heavy oil extraction, gathering, and processing. The hydrogen donated visbreaking process, which the hydrogen donor was added into the conventional visbreaking process to solve the problem of low processing depth,coking,and poor stability,was an efficient thermal viscosity reduction technology. This review first introduced the basic types of heavy oil pipeline transportations. Then the hydrogen donating mechanism,the effect of hydrogen donor,the species of hydrogen donor,determination of donatable hydrogen concentration and application of hydrogen donor were summarized. The selection of hydrogen donors should be determined according to process conditions and the properties of hydrogen donor. The key issue of affecting the coking and inhibiting coking is whether the active hydrogen can be timely closed the asphaltic free radicals.

Key words: hydrogen donors, heavy oil, viscosity, donatable hydrogen, determination methods

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