Coal decarbonization: A state-of-the-art review of enhanced hydrogen production in underground coal gasification

Jiang, Liangliang; Xue, Dan; Wei, Zixiang; Chen, Zhangxin; Mirzayev, Mammad; Chen, Yanpeng; Chen, Shanshan

doi:10.1016/j.enrev.2022.100004

Cited by 46 publications

(10 citation statements)

References 60 publications

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“…15,16 A subbituminous coal was used due to its wide availability and low price in the United States (US EIA 2021). 17 In the second step, the sorbent was postsynthetically oxidized to introduce acid groups (-COOH), designated NPC-acid. In the third step, Mg +2 ions were tethered to the acid functional groups to form MgO moieties in a highly porous sorbent scaffold (NPC-MgO).…”

Section: Resultsmentioning

confidence: 99%

Nanoporous metal oxide functionalized carbon sorbent for carbon dioxide capture

Sekizkardes

Wang

Muldoon

et al. 2022

Preprint

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A nanoporous carbon sorbent was synthesized, functionalized with magnesium oxide (MgO), and demonstrated to be a high-performance CO2 capture adsorbent. Taking advantage of a low cost and scalable preparation method, the unique design of the sorbent fosters strong interactions between the metals and acid moieties in the porous carbon media. The high surface area (2130 m2/g) and nanopores (1-2 nm) of the porous carbon enable a high concentration and uniform distribution of metal oxide throughout the sorbent. CO2 uptake capacity of the sorbent at 400 ppm CO2 was 0.12 mmol CO2/g sorbent, which is two orders of magnitude higher than that of the unfunctionalized porous carbon. The CO2 adsorption performance of the MgO functionalized nanoporous carbon at a low partial pressure of CO2 compares favourably with reported CO2 uptake of Mg oxide functionalized porous carbons as well as porous and non-porous metal oxides.

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Section: Resultsmentioning

confidence: 99%

Nanoporous metal oxide functionalized carbon sorbent for carbon dioxide capture

Sekizkardes

Wang

Muldoon

et al. 2022

Preprint

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“…8). Derzeit werden weltweit etwa 18 % des Wasserstoffs durch Kohlevergasung gewonnen 30, 31. Auch Lignozellulose‐Biomasse kann auf diese Weise für die Herstellung von Synthesegas und Wasserstoff eingesetzt werden.…”

Section: Herstellungsverfahren Für Wasserstoff In Der Chemischen Indu...unclassified

Regenerativ erzeugter Wasserstoff – Perspektiven in chemischen Wertschöpfungsketten

Niquini,

Münzer,

Ebrahim-Moghaddam

et al. 2024

Chemie Ingenieur Technik

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Wasserstoff wird zurzeit überwiegend aus Erdgas, Erdöl und Kohle hergestellt. Aktuell wird in der Forschung und der anwendungsnahen Entwicklung intensiv an neuen Verfahren für die Erzeugung und den Transport von regenerativ erzeugtem Wasserstoff gearbeitet. Für die chemische Industrie werden zudem neue Kohlenstoffquellen gesucht, wodurch sich die Wertschöpfungsketten auf dem Weg zur angestrebten Klimaneutralität drastisch verändern. Die vorliegende Arbeit zeigt, dass der Wasserstoffbedarf nur in den frühen Wertschöpfungsstufen erheblich zunehmen wird. Bei der Veredelung von Zwischenprodukten wird sich Bedarf nicht deutlich ändern, wenn davon ausgegangen wird, dass die heutigen Zwischenprodukte der industriellen organischen Industrie weitestgehend beibehalten werden. Für eine erfolgreiche Transformation der deutschen chemischen Industrie wäre es demnach von besonderer Bedeutung, eine optimale Balance zwischen dem Import regenerativ erzeugter Zwischenprodukte und der Bereitstellung von regenerativem Wasserstoff für die Veredelungsstufen zu den Endprodukten zu finden.

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“…In the context of future low-carbon scenarios, these processes play a pivotal role in the transformation of coal utilization resources. 8,9 All of these processes involve in situ gasification of carbon under controlled conditions within the reaction zone and the production of gases with high reduction potential. 10 In the oxy-fuel combustion technology with flue gas recirculation, the CO 2 levels in the furnace can reach 60-70 vol%, while the steam concentration can vary from 5 vol% to 40 vol%.…”

Section: Introductionmentioning

confidence: 99%

Interactions of graphene with oxidants in a mixed atmosphere: synergistic effects of O₂/H₂O and O₂/CO₂ on gasification reactivity and kinetics

Liang,

Khanna,

et al. 2024

Phys. Chem. Chem. Phys.

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Coal decarbonization: A state-of-the-art review of enhanced hydrogen production in underground coal gasification

Cited by 46 publications

References 60 publications

Nanoporous metal oxide functionalized carbon sorbent for carbon dioxide capture

Nanoporous metal oxide functionalized carbon sorbent for carbon dioxide capture

Regenerativ erzeugter Wasserstoff – Perspektiven in chemischen Wertschöpfungsketten

Interactions of graphene with oxidants in a mixed atmosphere: synergistic effects of O₂/H₂O and O₂/CO₂ on gasification reactivity and kinetics

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Coal decarbonization: A state-of-the-art review of enhanced hydrogen production in underground coal gasification

Cited by 46 publications

References 60 publications

Nanoporous metal oxide functionalized carbon sorbent for carbon dioxide capture

Nanoporous metal oxide functionalized carbon sorbent for carbon dioxide capture

Regenerativ erzeugter Wasserstoff – Perspektiven in chemischen Wertschöpfungsketten

Interactions of graphene with oxidants in a mixed atmosphere: synergistic effects of O2/H2O and O2/CO2 on gasification reactivity and kinetics

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Interactions of graphene with oxidants in a mixed atmosphere: synergistic effects of O₂/H₂O and O₂/CO₂ on gasification reactivity and kinetics