Thermal decomposition processes in algaenan of Botryococcus braunii race L. Part 1: Experimental data and structural evolution

作者: Elodie Salmon , Françoise Behar , François Lorant , Patrick G. Hatcher , Pierre Metzger

DOI: 10.1016/J.ORGGEOCHEM.2008.11.007

关键词:

摘要: The thermal reactivity of organic matter in source rocks is usually kinetically represented by a set parallel and independent first order reactions. This approach assumes that only defunctionalization reactions take place upon decomposition, regardless the chemical nature kerogen. We have developed new method for evaluating maturation pathways an important kerogen-forming geopolymer, algaenan, involving molecular dynamic reactive modeling based on quantum mechanics to reproduce maturation. To achieve this, structural model constructed models from literature analytical characterization our samples using modern 1D 2D nuclear magnetic resonance spectroscopy (NMR), fourier transform infrared (FTIR) elemental analysis. Then, decomposition algaenan performed at low conversion describe initial transformations analytically. In additional step, observed changes are quantitatively qualitatively compared simulated models. From this detailed reaction schemes extracted primary cracking mechanisms

参考文章(32)
Dietrich H. Welte, Bernard P. Tissot, Petroleum Formation and Occurrence ,(1989)
S. Derenne, C. Largeau, E. Casadevall, C. Berkaloff, Occurrence of a resistant biopolymer in the L race of Botryococcus braunii Phytochemistry. ,vol. 28, pp. 1137- 1142 ,(1989) , 10.1016/0031-9422(89)80197-9
B. Allard, J. Templier, C. Largeau, An improved method for the isolation of artifact-free algaenans from microalgae Organic Geochemistry. ,vol. 28, pp. 543- 548 ,(1998) , 10.1016/S0146-6380(98)00012-6
Zhaohui Zhang, Pierre Metzger, Julian P. Sachs, Biomarker evidence for the co-occurrence of three races (A, B and L) of Botryococcus braunii in El Junco Lake, Galapagos Organic Geochemistry. ,vol. 38, pp. 1459- 1478 ,(2007) , 10.1016/J.ORGGEOCHEM.2007.05.015
F Behar, M.D Lewan, F Lorant, M Vandenbroucke, Comparison of artificial maturation of lignite in hydrous and nonhydrous conditions Organic Geochemistry. ,vol. 34, pp. 575- 600 ,(2003) , 10.1016/S0146-6380(02)00241-3
B. Horsfield, U. Disko, F. Leistner, The micro-scale simulation of maturation: outline of a new technique and its potential applications International Journal of Earth Sciences. ,vol. 78, pp. 361- 373 ,(1989) , 10.1007/BF01988370