期刊
FUEL
卷 115, 期 -, 页码 338-346出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2013.07.029
关键词
Oil shale; Topochemical reaction; Chemical characterization; Reaction mechanism
资金
- production-study-research-applying cooperative innovation national project on Chinese potential oil and gas resources
In this study, the topochemical reaction strategy, utilizing Huadian oil shale to produce shale gas, liquid, and solid residues, has been demonstrated. Thermogravimetric analysis, Fourier transform-infrared spectroscopy, X-ray diffraction, gas chromatography-mass spectrometry, and scanning electron microscopy were performed to characterize the products obtained at different temperatures. Furthermore, the mechanisms of the topochemical reaction were proposed based on the experimental results and literatures. During the topochemical reaction process, it was noted that the conversion of kerogen to bitumen began at approximately 270 degrees C. Three distinct reactions were identified in the kerogen-bitumen-oil/gas process, namely, low-temperature, moderate-temperature, and high-temperature oxidation. Shale gas and liquid were predominantly produced in the range of 400-500 degrees C. In this topochemical reaction strategy, oil shale was partially oxidized to carbon dioxide and water in the presence of small quantities of air, and thus a large amount of heat was produced for further self-pyrolysis. The topochemical reaction of oil shale is a chemical heat-enhanced process that not only conserves energy but also decomposes the oil shale more thoroughly. (C) 2013 Elsevier Ltd. All rights reserved.
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