Ultra-pure hydrogen production from reformate mixtures using a palladium membrane reactor system

Abdollahi, Mitra; Yu, Jiang; Liu, Paul K. T.; Ciora, Richard; Sahimi, Muhammad; Tsotsis, Theodore T.

doi:10.1016/j.memsci.2011.10.053

Cited by 53 publications

(20 citation statements)

References 33 publications

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“…It is noteworthy that few authors reported so far the possibility to perform a two-step process in which a sugars solution (particularly glucose) is firstly hydrogenated over Ru/C or Pt/Al 2 O 3 in order to obtain a mixture of sorbitol and mannitol, which is successively reformed in a second reactor that is filled with Pt/C or Pt/Al 2 O 3 catalyst. H 2 , in the gaseous mixture (reformate), can be purified and separated from CO 2 by pressure-swing adsorption or using specific membranes [42][43][44][45]. The production of CO is strongly limited by the water gas shift (WGS) reaction, which is favored by both the APR conditions (aqueous phase, temperature applied) and catalyst used.…”

Section: Aqueous Phase Reforming Of C5 and C6 Polyolsmentioning

confidence: 99%

A Short Overview on the Hydrogen Production Via Aqueous Phase Reforming (APR) of Cellulose, C6-C5 Sugars and Polyols

et al. 2019

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The use of lignocellulosic biomasses for the production of renewable hydrogen is surely among the hot-topic research tasks. In this review, we report on the recent advances in the catalytic conversion of cellulose and its derived C6-C5 sugars (glucose, fructose, and xylose) and polyols (sorbitol and xylitol) into hydrogen via aqueous phase reforming (APR) reactions. The APR processes are considered to be new sustainable catalytic routes for converting the carbohydrate fraction of biomasses into hydrogen at milder reaction conditions if compared with the traditional reforming reactions. Particular emphasis is given to the development of new and active catalysts and to the optimization of reaction conditions that aimed to maximize hydrogen production with a low concentration of CO avoiding, at the same time, the formation of alkanes.

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Section: Aqueous Phase Reforming Of C5 and C6 Polyolsmentioning

confidence: 99%

A Short Overview on the Hydrogen Production Via Aqueous Phase Reforming (APR) of Cellulose, C6-C5 Sugars and Polyols

et al. 2019

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“…Abdollahi et al [27] evaluated commercial scale Pd membrane reactor for the WGS reaction. A tubular Pd membrane reactor of length ¼ 762 mm, ID ¼ 3.5 mm, OD ¼ 5.7 mm was synthesized and commercial Cu-Zn-Al 2 O 3 catalyst was used.…”

Section: Pd-based Membrane Reactorsmentioning

confidence: 99%

WGS Reaction in Membrane Reactors

Reddy

Smirniotis²

2015

Water Gas Shift Reaction

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“…The adoption of hydrogen (H 2 ) proton exchange membrane (PEM) fuel cells as source of energy of the future can mitigate the impact of carbon emission to the environment [1]. PEM fuel cells are fueled with H 2 that is generally produced by steam reformation of methanol, and the produced gas generally contains about 1% CO, which can poison the anode terminal [2,3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydrazine Pretreatment on the Activity, Stability and Active Sites of Cobalt Species for Preferential Oxidation (PROX) of CO in H2-Rich Stream

2019

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The as-prepared (Co3O4) and hydrazine-treated (Co3O4(H)) cobalt catalysts were prepared using the precipitation method and evaluated at a temperature range of 40–220 °C for preferential oxidation (PROX) of CO in excess hydrogen. An improved surface reducibility with smaller crystallite size was noted on hydrazine-treated cobalt species (i.e., Co3O4(H) catalyst), which indicates some surface transformation. This finding correlates with the surface roughness formation (as depicted by scanning electron microscope (SEM) and transmission electron microscope (TEM) data), which was further confirmed by an increase in the Brunauer–Emmett–Teller (BET) surface area. The mesoporous structure of the Co3O4(H) catalyst remained intact, as compared to that of the Co3O4 catalyst. Interestingly, the in situ treatment of the standalone Co3O4(H) catalyst decreased the maximum CO conversion temperature (T100%) from 160 °C (over Co3O4) to 100 °C, with good selectivity. The Co3O4(H) catalyst showed good stability, with approximately 85% CO conversion at 100 °C for 21 h, as compared to a faster deactivation of the Co3O4 catalyst. However, the Co3O4(H) catalyst was unstable in both CO2 and the moisture environment. Based on the evaluation of spent hydrazine-treated (CoO(H)) cobalt catalyst, the high PROX activity is associated with the formation of Co3+ species as confirmed by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), and temperature-programmed reduction (TPR) data.

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Ultra-pure hydrogen production from reformate mixtures using a palladium membrane reactor system

Cited by 53 publications

References 33 publications

A Short Overview on the Hydrogen Production Via Aqueous Phase Reforming (APR) of Cellulose, C6-C5 Sugars and Polyols

A Short Overview on the Hydrogen Production Via Aqueous Phase Reforming (APR) of Cellulose, C6-C5 Sugars and Polyols

WGS Reaction in Membrane Reactors

Effect of Hydrazine Pretreatment on the Activity, Stability and Active Sites of Cobalt Species for Preferential Oxidation (PROX) of CO in H2-Rich Stream

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