Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5162899 | Organic Geochemistry | 2014 | 6 Pages |
Abstract
A Cambrian solid bitumen from northwestern Sichuan Basin, southern China was analyzed using two different flash pyrolysis methods coupled with gas chromatography-mass spectrometry analysis, including Pyroprobe® and analytical laser micropyrolysis. Results show that pyrolysis products from a Pyroprobe® (model 5000) analysis are dominated by mono-, di- and tricyclic aromatic hydrocarbons, whilst those from laser micropyrolysis are dominated by aliphatic hydrocarbons (n-alk-1-ene/n-alkane doublets), which is consistent with the results from an FT-IR spectrum of the solid bitumen. According to the molecular compositions of the pyrolysates from two types of pyrolysis, results from a 532Â nm continuous wave laser may be more suitable for pyrolysis research of bitumen/asphaltene. Thus, differences in pyrolysis techniques must be considered when used to characterize oil asphaltenes or source rock kerogens.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Zhirong Zhang, Wenxuan Hu, Xiaoying Song, Caiming Zhang, Qu Zhang, Juchang Jin,