天然气地球科学 ›› 2010, Vol. 21 ›› Issue (6): 980–988.doi: 10.11764/j.issn.1672-1926.2010.06.980

• 综述与评述 • 上一篇    下一篇

相态——原油裂解成气模拟实验中的一个重要问题

邹艳荣, 魏志福, 陶伟, 蔡玉兰, 宋之光, 彭平安   

  1. 1.中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广东 广州510640;
    2.中国科学院研究生院,北京 100049;
    3.中国国家海洋局南海分局,广东 广州  510300
  • 收稿日期:2009-12-16 修回日期:2010-02-05 出版日期:2010-12-10 发布日期:2010-12-10
  • 通讯作者: 邹艳荣zouyr@gig.ac.cn E-mail:zouyr@gig.ac.cn
  • 作者简介:邹艳荣(1959-),男,黑龙江双鸭山人,博士,研究员,博士生导师,主要从事油气地球化学研究.
  • 基金资助:

    有机地球化学国家重点实验室基金(编号:SKLOG2009A01);中国科学院知识创新项目(编号:KZCX2-YW-114)联合资助.

Phase State: A Critical Issue for Oil Cracking into Gases Simulation

ZOU Yan-Rong, WEI Zhi-Fu, TAO Wei, CAI Yu-Lan, SONG Zhi-Guang, PENG Beng-An   

  1. 1.The State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,CAS,
    Guangzhou 510640,China; 2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;3.South China Sea Branch,State Oceanic Administrition,Guangzhou 510300,China.
  • Received:2009-12-16 Revised:2010-02-05 Online:2010-12-10 Published:2010-12-10

摘要:

在温度为400~460℃、压力为50~150MPa的条件下,用金管—高压釜系统对nC22进行了恒温24 h热解。结果显示:当压力一定时,甲烷和重烃气(C2-5)的产率均随热解温度增高而增加。而当温度一定时,压力对甲烷和重烃气产率的影响却随系统的热解温度变化存在较大差异,其中温度在400℃时,气态烃产率随压力的增加而降低;在温度为420℃时,压力对气态烃产率的影响轻微; 在温度为420℃以上时,压力越大气态烃的产率增加越显著。在讨论了温度、压力对原油裂解的影响后认为,体系的相态是裂解成气实验中值得重视的一个问题。

关键词: 压力, 相态, 原油, 裂解, 天然气

Abstract:

The gold tube\|autoclave system was employed to carry out the experiment of n\|docosane cracking for 24 hour under the temperature range of 400-460℃ and the pressure of 50-150MPa.The results show that the yields of methane and heavy gases (C2-5) increase with temperature when the constant pressure is used.However,when the pyrolysis temperature is constant,the influence of pressure on methane and heavy gases yields demonstrates a great difference: at 400℃ the gaseous HC yield decrease with the rise of pressure; the pressure influence is slight at 420℃; the gaseous HC yield increase significantly with pressure rise when the pyrolysis temperature is over 420℃.The effects of pyrolysis temperature and pressure on the oil cracking are discussed in this paper.It is believed that the phase state in the pyrolysis system is a critical,considerable issue for oil cracking simulation.

Key words: Pressure, Phase state, Crude oil, Pyrolysis, Natural gas.

中图分类号: 

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