石油学报 ›› 1998, Vol. 19 ›› Issue (1): 29-33.DOI: 10.7623/syxb199801006

• 地质勘探 • 上一篇    下一篇

生物气形成过程中CH4碳同位素变化规律的研究

钱贻伯1, 连莉文2, 陈文正3, 戚厚发4, 关德师4   

  1. 1. 农业部沼气科学研究所;
    2. 农业部重点开放厌氧微生物实验室;
    3. 四川省石油勘探开发研究院;
    4. 石油勘探开发科学研究院 北京
  • 收稿日期:1997-03-17 出版日期:1998-01-25 发布日期:2011-03-16
  • 作者简介:钱贻伯,研究员, 1964年毕业于四川大学生物系生物物理专业。现在农业部沼气科学研究所从事厌氧消化和厌氧生物研究工作。通讯处:四川省成都市人民南路四段13号。邮政编码:610041。
  • 基金资助:
    “八五”国家重点科技攻关项目85-102-02-05-01研究成果。

THE ALTERATION OF METHANE CARBON ISOTOPE IN BIOGAS GENERATION PROCESS

Qian Yibao1   

  1. The KeyOpen Laboratory of Anaerobic Microbe, Ministry of Agriculture
  • Received:1997-03-17 Online:1998-01-25 Published:2011-03-16

摘要: 高盐沉积物生物气形成过程中,随着产气时间的增长和温度的升高,生成的CH4有着逐渐富集12C的规律,有别于有机质热分解成气过程,热解成气是随时延长、温度升高而降解增强,形成的CH4则是逐渐富集13C。海洋沉积物生成的CH4较盐湖沉积物生成的CH4略富12C。

关键词: 碳同位素, 生物气, 生化CH4, 热解气, 海洋沉积物, 盐湖沉积物

Abstract: During the process of biogas-forming in the high-salty sediments, the methane enriches isotope 12C gradually with the rising in temperature and prologation in gas-generating time.This result is different from the gas-forming process of organic pyrolysis, in which the degradation of organic matter is strengthened with the rising in temperature and prologation in gas-forming time and the methane enriches isotope 13C gradually.The methane generated from the sea sediments enriches more isotope 12C than from the salty lake sediments.

Key words: carbon isotope, biogas, biogenic methane, pyrolysic gas, sea sediment, salt lake sediment