Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power Plants
The desulfurization wastewater produced by the desulfurization process of coal-fired power plants has the characteristics of high salinity, corrosiveness and scaling, which is the most difficult part in the treatment of wastewater. The characteristics of desulfurization wastewater-assisted coal elec...
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| Format: | Article |
| Language: | English |
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Editorial Department of Power Generation Technology
2020-10-01
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| Series: | 发电技术 |
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| Online Access: | https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.20049 |
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| author | Jianzhong LIU Cong CHEN Zhihao SUN Jingfeng WU Xiaojun WANG |
| author_facet | Jianzhong LIU Cong CHEN Zhihao SUN Jingfeng WU Xiaojun WANG |
| author_sort | Jianzhong LIU |
| collection | DOAJ |
| description | The desulfurization wastewater produced by the desulfurization process of coal-fired power plants has the characteristics of high salinity, corrosiveness and scaling, which is the most difficult part in the treatment of wastewater. The characteristics of desulfurization wastewater-assisted coal electrolysis were studied based on H-type electrolytic cell, so as to realize the simultaneous utilization of desulfurization wastewater and excess power from coal-fired power plants. The results show that the electrolytic performance of desulfurization wastewater after acidification is significantly higher than that of water, which can reduce the power consumption of hydrogen production by electrolysis. Desulfurization wastewater alone cannot promote the electrical oxidation of coal, so iron ions are still needed to be added as catalyst. Unacidified desulfurization wastewater can promote the catalytic effect of iron ions, thereby further reducing the power consumption of hydrogen production. Based on this, three possible processes of desulfurization wastewater electrolysis for hydrogen production, including acidification treatment, direct utilization and pulverized coal addition, were proposed. |
| format | Article |
| id | doaj-art-edd670022b004e9f97a2cb174f1183d8 |
| institution | DOAJ |
| issn | 2096-4528 |
| language | English |
| publishDate | 2020-10-01 |
| publisher | Editorial Department of Power Generation Technology |
| record_format | Article |
| series | 发电技术 |
| spelling | doaj-art-edd670022b004e9f97a2cb174f1183d82025-08-20T02:49:52ZengEditorial Department of Power Generation Technology发电技术2096-45282020-10-0141553654210.12096/j.2096-4528.pgt.20049fdjs-41-5-536Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power PlantsJianzhong LIU0Cong CHEN1Zhihao SUN2Jingfeng WU3Xiaojun WANG4State Key Laboratory of Energy Clean Utilization(College of Energy Engineering, Zhejiang University), Hangzhou 310027, Zhejiang Province, ChinaState Key Laboratory of Energy Clean Utilization(College of Energy Engineering, Zhejiang University), Hangzhou 310027, Zhejiang Province, ChinaState Key Laboratory of Energy Clean Utilization(College of Energy Engineering, Zhejiang University), Hangzhou 310027, Zhejiang Province, ChinaState Key Laboratory of Energy Clean Utilization(College of Energy Engineering, Zhejiang University), Hangzhou 310027, Zhejiang Province, ChinaState Key Laboratory of Energy Clean Utilization(College of Energy Engineering, Zhejiang University), Hangzhou 310027, Zhejiang Province, ChinaThe desulfurization wastewater produced by the desulfurization process of coal-fired power plants has the characteristics of high salinity, corrosiveness and scaling, which is the most difficult part in the treatment of wastewater. The characteristics of desulfurization wastewater-assisted coal electrolysis were studied based on H-type electrolytic cell, so as to realize the simultaneous utilization of desulfurization wastewater and excess power from coal-fired power plants. The results show that the electrolytic performance of desulfurization wastewater after acidification is significantly higher than that of water, which can reduce the power consumption of hydrogen production by electrolysis. Desulfurization wastewater alone cannot promote the electrical oxidation of coal, so iron ions are still needed to be added as catalyst. Unacidified desulfurization wastewater can promote the catalytic effect of iron ions, thereby further reducing the power consumption of hydrogen production. Based on this, three possible processes of desulfurization wastewater electrolysis for hydrogen production, including acidification treatment, direct utilization and pulverized coal addition, were proposed.https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.20049coal-fired power plantshydrogen productiondesulfurization wastewatercoal electrolysisenergy storagecoal water slurry |
| spellingShingle | Jianzhong LIU Cong CHEN Zhihao SUN Jingfeng WU Xiaojun WANG Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power Plants 发电技术 coal-fired power plants hydrogen production desulfurization wastewater coal electrolysis energy storage coal water slurry |
| title | Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power Plants |
| title_full | Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power Plants |
| title_fullStr | Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power Plants |
| title_full_unstemmed | Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power Plants |
| title_short | Desulfurization Wastewater-assisted Coal Electrolysis for Hydrogen Production in Coal-fired Power Plants |
| title_sort | desulfurization wastewater assisted coal electrolysis for hydrogen production in coal fired power plants |
| topic | coal-fired power plants hydrogen production desulfurization wastewater coal electrolysis energy storage coal water slurry |
| url | https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.20049 |
| work_keys_str_mv | AT jianzhongliu desulfurizationwastewaterassistedcoalelectrolysisforhydrogenproductionincoalfiredpowerplants AT congchen desulfurizationwastewaterassistedcoalelectrolysisforhydrogenproductionincoalfiredpowerplants AT zhihaosun desulfurizationwastewaterassistedcoalelectrolysisforhydrogenproductionincoalfiredpowerplants AT jingfengwu desulfurizationwastewaterassistedcoalelectrolysisforhydrogenproductionincoalfiredpowerplants AT xiaojunwang desulfurizationwastewaterassistedcoalelectrolysisforhydrogenproductionincoalfiredpowerplants |