04/01727 Simulation of hydrocarbon-generating and hydrocarbon-expulsion histories in the Middle and Lower Jurassic of the northern margin of Qaidum Basin, China: Wang, Y. and Xu, J. Shiyou Kantan Yu Kaifa, 2003, 30, (1), 49–53. (In Chinese)
- Publisher
- Elsevier Science
- Year
- 2004
- Weight
- 176 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0140-6701
No coin nor oath required. For personal study only.
✦ Synopsis
01 Solid fuels (sources, winning, properties) Contents of preserved lignin structures in Miocene-aged lignite lithotypes were determined. Phenol aldehydes, ketones and acids released from lignin by CuO oxidative hydrolysis were separated by capillary zone electrophoresis (CZE). Products of degradation were separated and identified by GC-MS to confirm CZE data and to complement composition data. The following values for the contents of preserved lignin structures in lignite lithotypes were determined (in wt%): xylain, 8.5; humovitrain, 6.7; liptain, 6.4; and humoclarain, 3.3. Some fatty acids, negligible contents of benzene polycarboxylic acids and their hydroxy/methoxy counterparts were also observed using GC-MS.