Low Temperature Pyrolysis of Sapropelite Coals for Obtaining Initial Products for Industrial Organic Synthesis
NADEZHDA N. ROKOSOVA1, ALEXEY P. KOZLOV1, YURI V. ROKOSOV1 and NIKOLAY V. BODOEV2
1Institute of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences,
Sovetskiy Pr. 18, Kemerovo 650099 (Russia)
2Baikal Institute of Nature Management, Siberian Branch of the Russian
Academy of Sciences, Ul. Sakhyanovoy 8, Ulan-Ude 670047 (Russia) E-mail: chem@kemnet.ru
Pages: 407-419
Abstract
Results of experiments on low-temperature pyrolysis of sapropelite coals that can be used to develop scientific foundations of technology for processing of sapropelite fossil fuels in order to transform them into synthetic fuel and raw materials for chemical industry are described and discussed. Pyrolysis products have been obtained from sapropelite coals of various deposits with different degree of catagenetic maturity of the organic matter. The yield of liquid products for some coal samples was as high as 60 % (by mass). Liquid pyrolysis products have been studied 1H and 13C NMR spectroscopy and separated into fractions column chromatography and distillation. According to chromato-mass spectrometry the obtained fractions are complex mixture of hundreds of compounds. The bulk of pyrogenetic products of the samples consists of alkanes and alkenes of normal structure. The high yield of liquid pyrolysis products obtained from sapropelite coals permits considering them as a promising raw material for obtaining artificial liquid fuels. Similarly to the traditional use of petroleum, processing of these products with a wide use of fractionation and hydrogenization is necessary.
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