Modular Flow Reactors for Valorization of Kraft Lignin and Low‐Voltage Hydrogen Production
Abstract Recent studies have found that green hydrogen production and biomass utilization technologies can be combined to efficiently produce both hydrogen and value‐added chemicals using biomass as an electron and proton source. However, the majority of them have been limited to proof‐of‐concept de...
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| Format: | Article |
| Language: | English |
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Wiley
2022-12-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202204170 |
| _version_ | 1811197713482514432 |
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| author | Se‐Jun Yim Hyeonmyeong Oh Yuri Choi Gwang‐Noh Ahn Chae‐Hyeon Park Yong Hwan Kim Jungki Ryu Dong‐Pyo Kim |
| author_facet | Se‐Jun Yim Hyeonmyeong Oh Yuri Choi Gwang‐Noh Ahn Chae‐Hyeon Park Yong Hwan Kim Jungki Ryu Dong‐Pyo Kim |
| author_sort | Se‐Jun Yim |
| collection | DOAJ |
| description | Abstract Recent studies have found that green hydrogen production and biomass utilization technologies can be combined to efficiently produce both hydrogen and value‐added chemicals using biomass as an electron and proton source. However, the majority of them have been limited to proof‐of‐concept demonstrations based on batch systems. Here the authors report the design of modular flow systems for the continuous depolymerization and valorization of lignin and low‐voltage hydrogen production. A redox‐active phosphomolybdic acid is used as a catalyst to depolymerize lignin with the production of aromatic compounds and extraction of electrons for hydrogen production. Individual processes for lignin depolymerization, byproduct separation, and hydrogen production with catalyst reactivation are modularized and integrated to perform the entire process in the serial flow. Consequently, this work enabled a one‐flow process from biomass conversion to hydrogen gas generation under a cyclic loop. In addition, the unique advantages of the fluidic system (i.e., effective mass and heat transfer) substantially improved the yield and efficiency, leading to hydrogen production at a higher current density (20.5 mA cm−2) at a lower voltage (1.5 V) without oxygen evolution. This sustainable eco‐chemical platform envisages scalable co‐production of valuable chemicals and green hydrogen for industrial purposes in an energy‐saving and safe manner. |
| first_indexed | 2024-04-12T01:18:56Z |
| format | Article |
| id | doaj.art-a3ebef7b1aa44418b25c799b3e7f2841 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-12T01:18:56Z |
| publishDate | 2022-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-a3ebef7b1aa44418b25c799b3e7f28412022-12-22T03:53:51ZengWileyAdvanced Science2198-38442022-12-01935n/an/a10.1002/advs.202204170Modular Flow Reactors for Valorization of Kraft Lignin and Low‐Voltage Hydrogen ProductionSe‐Jun Yim0Hyeonmyeong Oh1Yuri Choi2Gwang‐Noh Ahn3Chae‐Hyeon Park4Yong Hwan Kim5Jungki Ryu6Dong‐Pyo Kim7Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of KoreaDepartment of Energy Engineering School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Energy Engineering School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of KoreaDepartment of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of KoreaDepartment of Energy Engineering School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Energy Engineering School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of KoreaAbstract Recent studies have found that green hydrogen production and biomass utilization technologies can be combined to efficiently produce both hydrogen and value‐added chemicals using biomass as an electron and proton source. However, the majority of them have been limited to proof‐of‐concept demonstrations based on batch systems. Here the authors report the design of modular flow systems for the continuous depolymerization and valorization of lignin and low‐voltage hydrogen production. A redox‐active phosphomolybdic acid is used as a catalyst to depolymerize lignin with the production of aromatic compounds and extraction of electrons for hydrogen production. Individual processes for lignin depolymerization, byproduct separation, and hydrogen production with catalyst reactivation are modularized and integrated to perform the entire process in the serial flow. Consequently, this work enabled a one‐flow process from biomass conversion to hydrogen gas generation under a cyclic loop. In addition, the unique advantages of the fluidic system (i.e., effective mass and heat transfer) substantially improved the yield and efficiency, leading to hydrogen production at a higher current density (20.5 mA cm−2) at a lower voltage (1.5 V) without oxygen evolution. This sustainable eco‐chemical platform envisages scalable co‐production of valuable chemicals and green hydrogen for industrial purposes in an energy‐saving and safe manner.https://doi.org/10.1002/advs.202204170biomass oxidationcontinuous‐flow systemelectron mediatorhydrogen evolutionin‐line separation |
| spellingShingle | Se‐Jun Yim Hyeonmyeong Oh Yuri Choi Gwang‐Noh Ahn Chae‐Hyeon Park Yong Hwan Kim Jungki Ryu Dong‐Pyo Kim Modular Flow Reactors for Valorization of Kraft Lignin and Low‐Voltage Hydrogen Production Advanced Science biomass oxidation continuous‐flow system electron mediator hydrogen evolution in‐line separation |
| title | Modular Flow Reactors for Valorization of Kraft Lignin and Low‐Voltage Hydrogen Production |
| title_full | Modular Flow Reactors for Valorization of Kraft Lignin and Low‐Voltage Hydrogen Production |
| title_fullStr | Modular Flow Reactors for Valorization of Kraft Lignin and Low‐Voltage Hydrogen Production |
| title_full_unstemmed | Modular Flow Reactors for Valorization of Kraft Lignin and Low‐Voltage Hydrogen Production |
| title_short | Modular Flow Reactors for Valorization of Kraft Lignin and Low‐Voltage Hydrogen Production |
| title_sort | modular flow reactors for valorization of kraft lignin and low voltage hydrogen production |
| topic | biomass oxidation continuous‐flow system electron mediator hydrogen evolution in‐line separation |
| url | https://doi.org/10.1002/advs.202204170 |
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