Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum Cokes
Macro-porous alumina was used as a support for a pellet-type Cu-based desulfurization sorbent in the gas purification process for producing blue hydrogen by the gasification of petroleum coke. The effects of the macro-porous alumina on the pellet-type sorbents in reducing the gas diffusion resistanc...
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MDPI AG
2021-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/17/7775 |
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| author | Dongjoon Kim Dasol Bae Yu Jin Kim Seung Jong Lee Jin Wook Lee Yongseung Yun No-Kuk Park Minkyu Kim |
| author_facet | Dongjoon Kim Dasol Bae Yu Jin Kim Seung Jong Lee Jin Wook Lee Yongseung Yun No-Kuk Park Minkyu Kim |
| author_sort | Dongjoon Kim |
| collection | DOAJ |
| description | Macro-porous alumina was used as a support for a pellet-type Cu-based desulfurization sorbent in the gas purification process for producing blue hydrogen by the gasification of petroleum coke. The effects of the macro-porous alumina on the pellet-type sorbents in reducing the gas diffusion resistance into the pores were investigated. The results showed that the macro-porous alumina enhances the diffusion resistance, resulting in an improved sulfur capacity of CuO absorbents. Such effects were more significant on the pellet type CuO absorbents than the powder type. In addition, CO production was observed experimentally during the desulfurization reaction of carbonyl sulfide (COS) at low temperatures (~473 K). Density functional theory calculations were also performed to understand the kinetics of desulfurization and CO production. The simulation results predicted that the kinetics of desulfurization is strongly affected by the local surface environment. The CO generated from C–O bond breaking from COS had a lower adsorption energy than the CO<sub>2</sub> formation. These results suggest that the Cu-based desulfurization sorbent has potential catalytic activity for producing CO from COS dissociation. |
| first_indexed | 2024-03-10T08:16:55Z |
| format | Article |
| id | doaj.art-14b0d8caaeba4b19818ea0d14077ca49 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T08:16:55Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-14b0d8caaeba4b19818ea0d14077ca492023-11-22T10:16:14ZengMDPI AGApplied Sciences2076-34172021-08-011117777510.3390/app11177775Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum CokesDongjoon Kim0Dasol Bae1Yu Jin Kim2Seung Jong Lee3Jin Wook Lee4Yongseung Yun5No-Kuk Park6Minkyu Kim7William G. Lowrie Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USASchool of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaInstitute for Advanced Engineering, 175-28, Goan-ro 51 Beon-gil, Baegam-Myeon, Cheoin-gu, Yongin-si 17180, KoreaInstitute for Advanced Engineering, 175-28, Goan-ro 51 Beon-gil, Baegam-Myeon, Cheoin-gu, Yongin-si 17180, KoreaInstitute for Advanced Engineering, 175-28, Goan-ro 51 Beon-gil, Baegam-Myeon, Cheoin-gu, Yongin-si 17180, KoreaInstitute of Clean Technology, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, KoreaMacro-porous alumina was used as a support for a pellet-type Cu-based desulfurization sorbent in the gas purification process for producing blue hydrogen by the gasification of petroleum coke. The effects of the macro-porous alumina on the pellet-type sorbents in reducing the gas diffusion resistance into the pores were investigated. The results showed that the macro-porous alumina enhances the diffusion resistance, resulting in an improved sulfur capacity of CuO absorbents. Such effects were more significant on the pellet type CuO absorbents than the powder type. In addition, CO production was observed experimentally during the desulfurization reaction of carbonyl sulfide (COS) at low temperatures (~473 K). Density functional theory calculations were also performed to understand the kinetics of desulfurization and CO production. The simulation results predicted that the kinetics of desulfurization is strongly affected by the local surface environment. The CO generated from C–O bond breaking from COS had a lower adsorption energy than the CO<sub>2</sub> formation. These results suggest that the Cu-based desulfurization sorbent has potential catalytic activity for producing CO from COS dissociation.https://www.mdpi.com/2076-3417/11/17/7775COS removaldesulfurizationCu-based sorbentmacro-porous aluminaCOS dissociation |
| spellingShingle | Dongjoon Kim Dasol Bae Yu Jin Kim Seung Jong Lee Jin Wook Lee Yongseung Yun No-Kuk Park Minkyu Kim Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum Cokes Applied Sciences COS removal desulfurization Cu-based sorbent macro-porous alumina COS dissociation |
| title | Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum Cokes |
| title_full | Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum Cokes |
| title_fullStr | Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum Cokes |
| title_full_unstemmed | Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum Cokes |
| title_short | Enhancement of Desulfurization Capacity with Cu-Based Macro-Porous Sorbents for Hydrogen Production by Gasification of Petroleum Cokes |
| title_sort | enhancement of desulfurization capacity with cu based macro porous sorbents for hydrogen production by gasification of petroleum cokes |
| topic | COS removal desulfurization Cu-based sorbent macro-porous alumina COS dissociation |
| url | https://www.mdpi.com/2076-3417/11/17/7775 |
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