Laser-Induced Voltage of Oil Shale during Retorting

Laser-Induced Voltage of Oil Shale during Retorting

In this study, a 248 nm laser was used to analyze oil shale at different pyrolysis temperatures. An induced voltage was obtained when the ultraviolet laser irradiated the oil shale surface. The laser-induced voltage (LIV) peak decreases with temperatures below 200 °C, increases with temperatures in...

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Bibliographic Details
Published in:Energy & fuels Vol. 33; no. 11; pp. 10533 - 10536
Main Authors: Chen, Mengxi, Zhan, Honglei, Chen, Ru, Meng, Zhaohui, Zhang, Shanzhe, Zhao, Kun, Zhu, Jing, Yue, Wenzheng
Format: Journal Article
Language:English
Published: American Chemical Society 21-11-2019
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Summary:In this study, a 248 nm laser was used to analyze oil shale at different pyrolysis temperatures. An induced voltage was obtained when the ultraviolet laser irradiated the oil shale surface. The laser-induced voltage (LIV) peak decreases with temperatures below 200 °C, increases with temperatures in the range 200–400 °C, and then decreases above 400 °C. The critical temperatures of 200 and 400 °C corresponded well with the points conformed using thermogravimetry and differential scanning calorimetry (TGA-DSC), gas chromatography and gas chromatography coupled (TG-FTIR-MS), and scanning electron microscopy (SEM). Our research suggested that an LIV method could be applied to the analysis of the oil shale pyrolysis process.
ISSN:0887-0624
1520-5029
DOI:10.1021/acs.energyfuels.9b02091