CIESC Journal

• REACTION KINETICS, CATALYSIS • 上一篇    下一篇

重油催化裂解汽柴油二次裂解性能研究

刘植昌; 孟祥海; 徐春明; 高金森   

  1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing
    102249, China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-06-28 发布日期:2007-06-28
  • 通讯作者: 刘植昌

Secondary Cracking of Gasoline and Diesel from Heavy Oil Catalytic Pyrolysis

LIU Zhichang; MENG Xianghai; XU Chunming; GAO Jinsen   

  1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing
    102249, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-06-28 Published:2007-06-28
  • Contact: LIU Zhichang

摘要: This paper investigated the secondary cracking of gasoline and diesel from the catalytic
pyrolysis of Daqing atmospheric residue on catalyst CEP-1 in a fluidized bed reactor. The
results show that the secondary cracking reactivity of gasoline and diesel is poor, and the
yield of total light olefins is only about 10% (by mass). As reaction temperature
increases, ethylene yield increases, butylene yield decreases, and propylene yield shows a
maximum. The optimal reaction temperature is about 670℃ for the production of light
olefins. With the enhancement of catalyst-to-oil mass ratio and steam-to-oil mass ratio,
the yields of light olefins increase to some extent. About 6.30% of the mass of total
aromatic rings is converted by secondary cracking, indicating that aromatic hydrocarbons
are not easy to undergo ring-opening reactions under the present experimental conditions.

关键词: secondary cracking;gasoline;diesel;catalytic pyrolysis;ethylene;propylene

Abstract: This paper investigated the secondary cracking of gasoline and diesel from the catalytic
pyrolysis of Daqing atmospheric residue on catalyst CEP-1 in a fluidized bed reactor. The
results show that the secondary cracking reactivity of gasoline and diesel is poor, and the
yield of total light olefins is only about 10% (by mass). As reaction temperature
increases, ethylene yield increases, butylene yield decreases, and propylene yield shows a
maximum. The optimal reaction temperature is about 670℃ for the production of light
olefins. With the enhancement of catalyst-to-oil mass ratio and steam-to-oil mass ratio,
the yields of light olefins increase to some extent. About 6.30% of the mass of total
aromatic rings is converted by secondary cracking, indicating that aromatic hydrocarbons
are not easy to undergo ring-opening reactions under the present experimental conditions.

Key words: secondary cracking, gasoline, diesel, catalytic pyrolysis, ethylene, propylene