A study of methanol steam reforming on distributed catalyst bed

Wang, Guoqiang; Wang, Feng; Li, Longjian; Zhang, Guofu

doi:10.1016/j.ijhydene.2013.02.061

Cited by 24 publications

(8 citation statements)

References 37 publications

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“…The change in trend for the methanol conversion and H 2 yield in the temperature range of 220–260 °C is in good agreement with previous results for the SRM reaction with Au/Cu and Cu/ZnO/Al 2 O 3 catalysts . The reason for the increase in the conversion and yield is that a high temperature tends to promote the shift of the chemical equilibrium towards the forward direction of the endothermic SRM . However, the change is the opposite if the reaction temperature is further elevated to 280 °C.…”

Section: Resultsmentioning

confidence: 99%

“…[43] Ther eason for the increasei nt he conversion and yield is that ah igh temperature tends to promote the shift of the chemical equilibrium towards the forward direction of the endothermic SRM. [3] However, the change is the opposite if the reaction temperature is further elevatedt o2 80 8C. Ma et al [2] found as imilar result for the SRM reaction and ascribed it to the decrease in catalytic activity caused by coke formation.…”

Section: Effect Of Reaction Temperaturementioning

confidence: 97%

“…Hydrogen is one of the most promising clean energies to solve the issues of energy consumption and environmental protection because of its outstanding advantages of high efficiency,r enewability, low toxicity, environmental friendliness, and good combustibility. [1][2][3] Hydrogen can be produced from al arge variety of startingm aterials( e.g.,f ossil fuels,w ater, biomass,c hemical hydrides)b ys team reforming, partial oxidation,electrolysis,m icrobiologicalp rocesses, and photocatalytic decomposition. [2,4,5] Among them,t he steam reforming of methanol (SRM) is the most cost-effective and sophisticated hydrogen production technique,w hich dominates over 50 %o ft he market share globally.…”

Section: Introductionmentioning

confidence: 99%

“…[8] Moreover, SRM can usually be conducted under mild conditions at low temperatures and ambient pressure with acceptable performance and easy handling. [9,10] However, the pursuit of am ore satisfactory methanol conversion and hydrogen yield for SRM is still an ongoing issue because of the existence of side reactionsa nd the restriction of chemical thermodynamics as shown in Equations (1)- (3). [11] SRM:…”

Section: Introductionmentioning

confidence: 99%

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Process Intensification of the Hydrogen Production Reaction Using a Carbon Membrane Reactor: Kinetics Analysis

et al. 2017

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Plate carbon membranes were fabricated and coupled into a membrane reactor to intensify the steam reforming of methanol (SRM). The homemade Cu‐based catalyst and carbon membranes were characterized by using thermogravimetric analysis, X‐ray diffraction, N2 adsorption, and gas permeation. The effects of the reaction temperature, reactor type, and carbon membranes on the methanol conversion and hydrogen yield were investigated. The results show that the coupling of carbon membranes in the reactor improves the methanol conversion significantly. In addition, both the methanol conversion and reaction rate increase, and the hydrogen yield first decreases then increases as the reaction temperature was elevated from 220 to 300 °C. This indicates that both thermodynamic and kinetic factors contribute to the intensification of SRM in the carbon membrane reactor.

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Section: Resultsmentioning

confidence: 99%

Section: Effect Of Reaction Temperaturementioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Process Intensification of the Hydrogen Production Reaction Using a Carbon Membrane Reactor: Kinetics Analysis

et al. 2017

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“…So, it is considered as a source for fuel cell powered vehicles [12,13]. Steam reforming of methanol is considered to be the most effective route for hydrogen production and has been the subject of several researches works [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Simulation Study of a Membrane Reactor for Ultrapure Hydrogen Recovery from Methanol Steam Reforming Reaction under Periodic Steady-State

Chibane

2017

Bull. Chem. React. Eng. Catal.

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Steam reforming of methanol over Cu/ZnO/Al2O3 catalyst was theoretically studied under created unsteady state. A mathematical approach was proposed to evaluate the effect of periodic inputs on reactor performance. The efficacy of the periodic separating reactor in term of pure hydrogen and of methanol conversion was measured during the reaction of methanol steam reforming. The obtained results showed that under certain operating conditions the periodic operation can be used advantageously to increase the reactor ability up to a level higher than the maximal steady-state. Moreover, our findings showed that the pumping of hydrogen through the membrane was stimulated by the effect of periodic operations. The predicted results suggested that the created unsteady state mode by using a square wave function could give the better performances compared to the sinusoidal mode.

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Optimizing the porosity configuration of porous copper fiber sintered felt for methanol steam reforming micro-reactor based on flow distribution

et al. 2018

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A study of methanol steam reforming on distributed catalyst bed

Cited by 24 publications

References 37 publications

Process Intensification of the Hydrogen Production Reaction Using a Carbon Membrane Reactor: Kinetics Analysis

Process Intensification of the Hydrogen Production Reaction Using a Carbon Membrane Reactor: Kinetics Analysis

Simulation Study of a Membrane Reactor for Ultrapure Hydrogen Recovery from Methanol Steam Reforming Reaction under Periodic Steady-State

Optimizing the porosity configuration of porous copper fiber sintered felt for methanol steam reforming micro-reactor based on flow distribution

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