One-pot synthesis of NiCo/MgAl2O4 catalyst for high coke-resistance in steam methane reforming: Optimization of Ni/Co ratio

Kim, Dong Hyun; Youn, Jae-Rang; Seo, Jeong-Cheol; Kim, Seung Bo; Kim, Minjae; Lee, Kyubock

doi:10.1016/j.cattod.2022.09.016

Cited by 10 publications

(7 citation statements)

References 33 publications

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“…Erredukzio fotokimikoari dagokionez, fotosintesi naturala imitatu nahi du, CO2-a energia handiko produktu bihurtuz, baina ez da mikroorganismoak erabiltzen dituen metodo biologikoarekin nahastu behar [50]. Bestetik, reforming-erreakzioei esker, sintesi-gasa sor daiteke reforming lehorraren, bi-reforming-aren (ur-lurrun bidezko eta reforming lehorraren konbinazioa) edo oxi-CO2 reformingaren bidez (hau da, oxidazio partziala eta reforming lehorraren konbinazioa) [64][65][66].…”

Section: Karbono Dioxidoaren Erabileraunclassified

CO2-a bahitu eta balorizatzeko prozesuen eginkizuna Energiaren Nazioarteko Erakundearen agertokietan

Parra Ipiña,

Portillo,

Ereña

et al. 2024

EKAIA

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Klima-aldaketa da gaur egungo arazo handienetakoa gizartean. Hori dela eta, Energiaren Nazioarteko Agentziak (IEA) hainbat agertoki proposatu ditu, egungo politika eta joeren arebera, jarraitu beharreko gidalerroekin. Ildo horien artean, azkenaldian garrantzi handoagoa ematen zaie CO2-a bahitu, biltegiratu eta erabiltzeko prozesuei, bereziki azken horri. Hala ere, CO2-a bahitzeko prozesuak (airetik zuzeneko bahiketa, errekuntza-aurrekoa, errekuntza-ostekoa eta oxierrekuntza) instalatzen diren instalazioetako etapa garestiena dira oraindik. Horregatik, CO2-a biltegiratu ordez, berotegi-efektua eragiten duen gas hori erabiltzea proposatzen da, hartara, emisio gehigarririk gabeko karbono-zikloak sortzeko. Erabilera-prozesuen artean, prozesu biologikoak eta kimikoak bereizten dira. Lehengo kasuan karbonoaren finkapen biologikoa egiten da mikroorganismoak erabiliz, CO2-a bioproduktu bihurtzeko. Prozesu kimikoetan, aldiz, CO2-a ezabatzeko eta beste produktu bihurtzeko erreakzioak gertarazten dira. Horien artean, ondorengoak dira aipagarrienak: reforming-a, hidrogenazioa, mineralizazioa, karboxilazioa eta bihurketa kimiko eta elektrokimikoa. Erabilera-prozesu horiek IEAren helburuak lortzen lagunduko lukete, hots, 2050ean karbono-emisio neutroak lortzea.

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Section: Karbono Dioxidoaren Erabileraunclassified

CO2-a bahitu eta balorizatzeko prozesuen eginkizuna Energiaren Nazioarteko Erakundearen agertokietan

Parra Ipiña,

Portillo,

Ereña

et al. 2024

EKAIA

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“…MgAl 2 O 4 has been utilized as a support for bimetallic Ni-Co catalysts, with investigations indicating that the loading of Co has a significant impact on the catalytic activity of 15 wt % Ni/MgAl 2 O 4 SMR [160]. As the amount of Co added to the catalyst increased, coke formation decreased and CH 4 conversion improved.…”

Section: Typementioning

confidence: 99%

Catalytic Biomass Gasification in Supercritical Water and Product Gas Upgrading

Vadarlis,

Angeli,

Lemonidou

et al. 2023

ChemBioEng Reviews

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The gasification of biomass with supercritical water, also known as SCWG, is a sustainable method of hydrogen production. The process produces a mixture of hydrogen, carbon oxides, and hydrocarbons. Upgrading this mixture through steam or dry reforming of hydrocarbons to create synthesis gas and then extra hydrogen is a viable way to increase hydrogen production from biomass. This literature review discusses combining these two processes and recent experimental work on catalytic SCWG of biomass and its model compounds and steam/dry reforming of produced hydrocarbons. It focuses on catalysts used in these processes and their key criteria, such as activity, selectivity towards hydrogen and methane, and ability to inhibit carbon formation and deposition. A new criterion is proposed to evaluate catalyst performance in biomass SCWG and the need for further upgrading via reforming, based on the ratio of hydrogen bound in hydrocarbons to total hydrogen produced during SCWG. The review concludes that most catalysts used in biomass SCWG trap a large proportion of hydrogen in hydrocarbons, necessitating further processing of the product stream.

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“…Comparing to the single metal Co, bimetallic CoÀ M based catalysts had been reported to perform better activity in HOAc steam reforming. [35][36][37] Megía et al compared the catalytic activity of Co/SBA-15 and CoÀ Cr/ SBA-15 in HOAc steam reforming, and found that HOAc conversion on the CoÀ Cr/SBA-15 was 90 %, which was significantly higher than that of Co/SBA-15. [38] Hu et al also investigated the effects of Zr, Mg and K additions in Co/Al 2 O 3 on the catalytic performances of HOAc steam reforming.…”

Section: Introductionmentioning

confidence: 99%

Addition of tungsten in Co/Al₂O₃ to catalyse the production of hydrogen through acetic acid steam reforming

Wang

et al. 2023

ChemistrySelect

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Steam reforming of bio-oil is a promising green hydrogen production technology. Experimental and theoretical calculations have been carried out to study the performance of Co/ Al 2 O 3 catalysts doped with tungsten (1-10 wt%) for bio-oil model compound acetic acid steam reforming. The maximum acetic acid conversion of 95.4 % and H 2 yield of 93.5 % were obtained over the 15Co-5W/Al 2 O 3 catalyst under the optimized reaction conditions of temperature = 550 °C, steam to carbon ratio = 5 and the gas hourly space velocity of 15,780 h À 1 . The feeding capacity of the catalyst was improved by 2.3 times by the addition of 5 wt% W compared to that of the non-W-added Co/Al 2 O 3 catalyst. Catalyst characterizations by BET, XRD, H 2 -TPR, XPS, HRTEM, and SEM were performed. The results showed that high activities were maintained over 20 h on the 15Co-5W/ Al 2 O 3 catalyst. A little filamentous coke was formed on the spent catalyst surface, and the agglomeration rate of active Co was relatively low. Density functional theory calculations confirmed that the adsorptions of CH 3 COOH and H 2 O on the catalyst were enhanced by the addition of W.

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One-pot synthesis of NiCo/MgAl2O4 catalyst for high coke-resistance in steam methane reforming: Optimization of Ni/Co ratio

Cited by 10 publications

References 33 publications

CO2-a bahitu eta balorizatzeko prozesuen eginkizuna Energiaren Nazioarteko Erakundearen agertokietan

CO2-a bahitu eta balorizatzeko prozesuen eginkizuna Energiaren Nazioarteko Erakundearen agertokietan

Catalytic Biomass Gasification in Supercritical Water and Product Gas Upgrading

Addition of tungsten in Co/Al₂O₃ to catalyse the production of hydrogen through acetic acid steam reforming

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One-pot synthesis of NiCo/MgAl2O4 catalyst for high coke-resistance in steam methane reforming: Optimization of Ni/Co ratio

Cited by 10 publications

References 33 publications

CO2-a bahitu eta balorizatzeko prozesuen eginkizuna Energiaren Nazioarteko Erakundearen agertokietan

CO2-a bahitu eta balorizatzeko prozesuen eginkizuna Energiaren Nazioarteko Erakundearen agertokietan

Catalytic Biomass Gasification in Supercritical Water and Product Gas Upgrading

Addition of tungsten in Co/Al2O3 to catalyse the production of hydrogen through acetic acid steam reforming

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Product

Resources

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Addition of tungsten in Co/Al₂O₃ to catalyse the production of hydrogen through acetic acid steam reforming