Improved hydrogen production from dry reforming reaction using a catalytic packed-bed membrane reactor with Ni-based catalyst and dense PdAgCu alloy membrane

Sumrunronnasak, Sarocha; Tantayanon, Supawan; Kiatgamolchai, Somchai; Sukonket, Thitinat

doi:10.1016/j.ijhydene.2015.10.129

Cited by 57 publications

(15 citation statements)

References 31 publications

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“…Sumrunronnasak studied the dry reforming reaction in systems with and without catalyst [18]. He found a methane conversion at 800 • C without catalyst of 10-15%, well below the results found in this publication.…”

Section: Comparison With Literature Resultsmentioning

confidence: 47%

Dry Reforming of Methane Using a Nickel Membrane Reactor

2017

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Dry reforming is a very interesting process for synthesis gas generation from CH 4 and CO 2 but suffers from low hydrogen yields due to the reverse water-gas shift reaction (WGS). For this reason, membranes are often used for hydrogen separation, which in turn leads to coke formation at the process temperatures suitable for the membranes. To avoid these problems, this work shows the possibility of using nickel self-supported membranes for hydrogen separation at a temperature of 800 • C. The higher temperature effectively suppresses coke formation. The paper features the analysis of the dry reforming reaction in a nickel membrane reactor without additional catalyst. The measurement campaign targeted coke formation and conversion of the methane feedstock. The nickel approximately 50% without hydrogen separation. The hydrogen removal led to an increase in methane conversion to 60-90%.

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Section: Comparison With Literature Resultsmentioning

confidence: 47%

Dry Reforming of Methane Using a Nickel Membrane Reactor

2017

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“…In addition, MR operates below 600 • C, thus, below the temperature range at which coke deposition readily occurs [22]. In most cases, the MRs used for DRM are constituted by a selective membrane-usually Pd-based-having only the separating function, whereas the catalyst is packed in the annulus between the membrane and reactor shell [23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Dry Reforming of Methane in a Pd-Ag Membrane Reactor: Thermodynamic and Experimental Analysis

et al. 2018

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The present work is a study of CO2 Reforming of Methane (DRM) carried out in a catalytic Pd-based membrane reactor. A detailed thermodynamic analysis is carried out, calculating the chemical equilibrium parameters in two different cases: (a) DRM along with the Reverse Water Gas Shift (RWGS) reaction and (b) DRM along with both RWGS and the Boudouard Reaction (BR). The performance of membrane reactor is then experimentally analyzed in terms of methane conversion, hydrogen recovery and H2/CO reaction selectivity by varying feed pressure and CO2/CH4 feed molar ratio and 500 °C and GHSV = 100 h−1. Among the obtained results, a CH4 conversion of about 26% and a H2 recovery of 47% are achieved at low feed pressures, exceeding the traditional reactor equilibrium conversion. This effect can be attributed to the favorable thermodynamics coupled to the hydrogen permeation through the membrane. This study further demonstrates the general effectiveness of membrane-integrated reaction processes, which makes the production of syngas more efficient and performing, providing important environmental benefits.

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“…The CeCoO x mixed‐oxide catalysts were prepared by surfactant‐assisted templating precipitation as previously reported , . The quantities of Ce(NO 3 ) 3 ·6H 2 O and Co(NO 3 ) 3 ·6H 2 O precursor salts were dissolved in deionized (DI) water at room temperature.…”

Section: Methodsmentioning

confidence: 99%

Hydrogen Production by Steam Reforming of Fusel Oil Using a CeCoO_x Mixed‐Oxide Catalyst

et al. 2019

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Various CeCoOx mixed‐oxide catalysts with different Ce/Co ratios were prepared by surfactant‐assisted template precipitation of CeO2 and Ce3O4. The obtained catalysts were characterized by X‐ray diffraction, X‐ray photoelectron spectra, hydrogen temperature‐programmed reduction, nitrogen physisorption, and transmission electron microscopy. In general, the mixed‐oxide CeCoOx catalysts showed well‐dispersed CeO2 and Co3O4 and good catalytic characteristics including a high specific surface area and porous structure. The effectiveness of the prepared catalysts on the hydrogen (H2) production from steam reforming of fusel oil was studied in a packed‐bed reactor. Co played an important role in C–C scission to break down the large C2–5 molecules into smaller species resulting in H2 formation. Ce could provide supplementary active oxygen to prevent coke formation on Co, resulting in a more stable activity of the mixed‐oxide catalyst throughout the reaction course.

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Improved hydrogen production from dry reforming reaction using a catalytic packed-bed membrane reactor with Ni-based catalyst and dense PdAgCu alloy membrane

Cited by 57 publications

References 31 publications

Dry Reforming of Methane Using a Nickel Membrane Reactor

Dry Reforming of Methane Using a Nickel Membrane Reactor

Dry Reforming of Methane in a Pd-Ag Membrane Reactor: Thermodynamic and Experimental Analysis

Hydrogen Production by Steam Reforming of Fusel Oil Using a CeCoO_x Mixed‐Oxide Catalyst

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Improved hydrogen production from dry reforming reaction using a catalytic packed-bed membrane reactor with Ni-based catalyst and dense PdAgCu alloy membrane

Cited by 57 publications

References 31 publications

Dry Reforming of Methane Using a Nickel Membrane Reactor

Dry Reforming of Methane Using a Nickel Membrane Reactor

Dry Reforming of Methane in a Pd-Ag Membrane Reactor: Thermodynamic and Experimental Analysis

Hydrogen Production by Steam Reforming of Fusel Oil Using a CeCoOx Mixed‐Oxide Catalyst

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Hydrogen Production by Steam Reforming of Fusel Oil Using a CeCoO_x Mixed‐Oxide Catalyst