Chinese Science Bulletin

, Volume 44, Issue 16, pp 1523–1527 | Cite as

Catalytic decarboxylation of fatty acid by iron-containing minerals in immature oil source rocks at low temperature

  • Zailong Zhang
  • Yanhua Sun
  • Yongxin Lao
  • Wuzheng Lin


The catalytic activities of seven immature source rocks in China on fatty acid decarboxylation for generating hydrocarbons have been evaluated by determinating the CO2 content from decarboxylation reaction of stearic acid. It has been found that the catalytic activities of immature source rocks mainly depend on the structure type of the minerals. In general, the catalytic activities of carbonates are higher than those of clays at low temperature. The higher its iron content, the higher the catalytic activity of carbonate.


immature oll source rock fatty acid mineral catalysis low temperature decarboxylation 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Cooper, J. E., A postulated role of fatty acids in petroleum formations,Geochim. Cosmochim. Acta, 1963, 27: 1113.CrossRefGoogle Scholar
  2. 2.
    Shi Jiyang, Xiang Mingju, Qu Dingchuanget al., Significance of amino acids and fatty acids for the formation of the biothertnocatalytic transition zone gases,Acta Sedimentologica Sinica (in Chinese), 1995, 13(2): 33.Google Scholar
  3. 3.
    Wang Tieguan, Zhong Ningning, Hou Dujieet al., Immature Oil Formation Mechanism and Occurrence (in Chinese), Beijing: Petroleum Industry Press, 1995, 64–76.Google Scholar
  4. 4.
    Huang Difan, Advances in hydrocarbon generation theory (1), Immature oils and generating hydrocarbon and evolutionary model,Advance in Earth Science (in Chinese), 1996, 11(4): 327.Google Scholar
  5. 5.
    Jurg & Eisma, Petroleum hydrocarbon: generation from fatty acid,Science, 1964, 144(3625): 1451.CrossRefGoogle Scholar
  6. 6.
    Goldstein, T. P., Geocatalytic reaction in formation and maturation of petroleum,The American Association of Petroleum Geologists Bulletin, 1983, 67(1): 152.Google Scholar
  7. 7.
    Shimoyama, A., Jones, W. P., Formation of alkanes from fatty acids in the presence of CaCO3,Geochim. Cosmochim. Acta, 1972, 36: 87.CrossRefGoogle Scholar
  8. 8.
    Hunt, J. M., The cretaceous austin chalk of South Texas—a petroleum source rock,Petroleum Geochemistry and Source Rock Potential of Carbonate Rocks, 1990, 144.Google Scholar
  9. 9.
    Mango, F. D., Role of transition-metal catalysis in the formation of nature gas,Nature, 1994, 368(6371): 536.CrossRefGoogle Scholar

Copyright information

© Science in China Press 1999

Authors and Affiliations

  • Zailong Zhang
    • 1
  • Yanhua Sun
    • 1
  • Yongxin Lao
    • 1
  • Wuzheng Lin
    • 1
  1. 1.University of PetroleumDongyingChina

Personalised recommendations