Aqueous-phase reforming of the low-boiling fraction of bio-oil for hydrogen production: The size effect of Pt/Al2O3

Chen, Aiping; Chen, Ping; Cao, Danyan; Liu, Hui

doi:10.1016/j.ijhydene.2015.09.030

Cited by 24 publications

(9 citation statements)

References 42 publications

(35 reference statements)

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“…Lehnert et al concluded that the reaction rate is not affected by changes in the particle size: Pt catalysts with sizes ranging from 1.6 to 3.1 nm showed similar activity in the glycerol APR. According to Chen et al, total carbon conversion from the liquid to the gas phase even decreased along with the Pt particle increase in the APR of bio-oil low-boiling fraction over Pt/Al 2 O 3 .…”

Section: Resultsmentioning

confidence: 97%

Sibunit-Supported Mono- and Bimetallic Catalysts Used in Aqueous-Phase Reforming of Xylitol

Godina

Кирилин

Tokarev

et al. 2018

Ind. Eng. Chem. Res.

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Carbon-supported mono- and bimetallic catalysts prepared via incipient wetness impregnation were systematically studied in aqueous-phase reforming (APR) of xylitol aiming at hydrogen production from biomass. The catalytic performance of several VIII group metals and their combinations, such as Pt, Ni, Pt–Ni, Re, Pt–Re, Ru, Pt–Ru, and Pt–Co, was compared for xylitol APR in a fixed-bed reactor at 225 °C and 29.7 bar (N2). Ni/C, Ru/C, and Re/C catalysts displayed significantly lower activity compared to others. Activity and selectivity to H2 of bimetallic Pt–Ni/C, Pt–Co/C, and Pt–Ru/C catalysts were close to that of Pt/C. Pt–Re/C catalyst showed an outstanding performance which was accompanied by a shift of the reaction pathways to the alkane formation and thereby lower hydrogen selectivity. Addition of the second metal to Pt was not found to be beneficial for hydrogen production, thus leaving Pt/C as the optimum carbon-supported catalyst.

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Section: Resultsmentioning

confidence: 97%

Sibunit-Supported Mono- and Bimetallic Catalysts Used in Aqueous-Phase Reforming of Xylitol

Godina

Кирилин

Tokarev

et al. 2018

Ind. Eng. Chem. Res.

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“…During the years, several new feedstocks such as biomass and its hydrolysate, cellulose and bio‐oil were tested for producing H 2 by the APR process using Pt‐ and Raney Ni‐based catalysts. Using a single‐pot, two‐step process of hydrolysis and APR, Valenzuela et al .…”

Section: Catalytic Studiesmentioning

confidence: 99%

“…The entire process is represented in Figure . Lastly, H 2 production via the APR of low‐boiling fraction of bio‐oil from pyrolysis of rice‐husk was demonstrated over Pt ,. While the importance of model compound studies cannot be overemphasized, surely more attention should be focused in future on investigating APR of biomass‐derived liquids.…”

Section: Catalytic Studiesmentioning

confidence: 99%

Review of Hydrogen Production by Catalytic Aqueous‐Phase Reforming

Vaidya

López-Sánchez

2017

ChemistrySelect

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Catalytic aqueous‐phase reforming (APR) produces higher quality hydrogen (with less carbon monoxide) and carbon dioxide from weak solutions of bio‐carbohydrates in a single reactor at low temperatures. It provides a good opportunity for the effective valorisation of biomass‐derived products. It is advantageous than steam reforming because it saves energy by avoiding vaporization of the biofeed and lowers cost by precluding an extra water gas shift reactor. As evident from the numerous published works during the past decade, there is growing academic and industrial interest in the APR process. This review updates recent literature on APR of many biomass surrogates such as glycerol, ethylene glycol, sorbitol, ethanol and glucose. Most works focused on the development of efficient catalysts for selective hydrogen production and they were deliberated comprehensively. Key insights into improved catalysts and reaction conditions were highlighted. New inferences on the thermodynamic, kinetic and reactor engineering aspects of the APR process were analysed too. This thorough appraisal of the current literature, which is hitherto missing, will surely contribute to the development of the next generation of catalysts and reactors for commercial applications of the APR process.

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“…They employed a real feed obtained by evaporating of the crude oil under vacuum. The experiments were performed in a stainless-steel autoclave at 260 • C. They analysed the effect of a platinum catalyst [18], the size of Pt/Al 2 O 3 [19] and the recyclability of Pt catalysts supported on mixed oxides [20].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Ni-Co/Al-Mg Catalyst Loading in the Continuous Aqueous Phase Reforming of the Bio-Oil Aqueous Fraction

et al. 2021

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The effect of catalyst loading in the Aqueous Phase Reforming (APR) of bio-oil aqueous fraction has been studied with a Ni-Co/Al-Mg coprecipitated catalyst. Because of the high content of water in the bio-oil aqueous fraction, APR could be a useful process to convert this fraction into valuable products. Experiments of APR with continuous feeding of aqueous solution of acetol, butanol and acetic acid as the only compound, together with a simulated and a real aqueous fraction of bio-oil, were carried out. Liquid products in the liquid effluent of the APR model compounds were quantified and the reaction pathways were revised. The increase of catalyst loading produced an increase of gas production and a gas with higher alkanes content. Acetol was the compound with the highest reactivity while the conversion of acetic acid was very low. The presence of acetic acid in the feed caused catalyst deactivation.

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Aqueous-phase reforming of the low-boiling fraction of bio-oil for hydrogen production: The size effect of Pt/Al2O3

Cited by 24 publications

References 42 publications

Sibunit-Supported Mono- and Bimetallic Catalysts Used in Aqueous-Phase Reforming of Xylitol

Sibunit-Supported Mono- and Bimetallic Catalysts Used in Aqueous-Phase Reforming of Xylitol

Review of Hydrogen Production by Catalytic Aqueous‐Phase Reforming

Influence of the Ni-Co/Al-Mg Catalyst Loading in the Continuous Aqueous Phase Reforming of the Bio-Oil Aqueous Fraction

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