期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 47, 期 51, 页码 21713-21724出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2022.05.004
关键词
Coal gangue; Pine sawdust; Co -gasification; Synergistic effect
资金
- National Natural Science Foundation of China [52160013, 51768054]
- Inner Mongolia Autonomous Region Youth Science and Technology Talents Support Program [N-JYT22062]
- Inner Mongolia Natural Science Foundation Project [2021LHMS05026]
- Higher Education Special Postgraduate Education Project [GJY2020015]
- Autonomous Region Thirteenth Five-Year Plan Project [NGJGH2020152]
In this paper, the synergistic effect of co-gasification for coal gangue and pine sawdust was studied, and it was found that there was a synergistic effect between the two. Under certain conditions, the co-gasification synergistic effect yielded the best results, with the highest hydrogen volume fraction and alkali metal content.
In this paper, the synergistic effect of co-gasification for coal gangue and pine sawdust was studied on a self-made two-stage gasification fixed bed experimental device. The results indicated that there was synergistic effect between coal gangue and pine sawdust. With the gasification temperature was 850 degrees C, the catalytic reforming temperature was 900 degrees C, the steam flow was 2 ml/min and the mixing ratio of coal gangue and pine sawdust was 1:1. The co-gasification synergistic effect yields the best results, the H2 volume fraction reached its highest value of 37.2%, with a synergistic coefficient of 0.22. Under this condition, the number of mesopores in co-gasification char was the largest and the absorbance of the hydroxyl (-OH) functional group was the smallest. The alkali metal (K, Ca) content reached a maximum of 22.18%, which was conducive to the formation of hydrogen. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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