Dual-membrane reactor for methane oxidative coupling and dry methane reforming: Reactor integration and process intensification

Godini, Hamid Reza; Xiao, Shengnan; Kim, M.; Görke, Oliver; Song, Sun‐Ju; Wozny, Günter

doi:10.1016/j.cep.2013.09.007

Cited by 34 publications

(16 citation statements)

References 15 publications

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“…The authors compared the developed fiber type membrane reactor with tubular and fixed-bed reactors ( Figure 5) under constant conditions. Three factors have been attributed to the efficiency formula of this reactor type; a reduction in the final reactor volume, feasibility in increasing the number of membranes, and the high ratio of surface area to volume [157][158][159]. The value was also much larger than only 34% conversion achieved with the regular fixedbed reactor.…”

Section: Effect Of Reactor Designmentioning

confidence: 98%

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A review on coke management during dry reforming of methane

Muraza

Galadima

2015

Int. J. Energy Res.

296

139

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Summary The dry (CO2) reforming of methane is a great promising technology, particularly because of its dual advantages of natural gas valorization and mitigating global warming via carbon dioxide sequestration. However, coke management is the most difficult problem in commercialization of the process. We have therefore examined in this paper the various catalytic systems being evaluated for the dry reforming with emphasis on operating parameters, activity, and coke deposition. Other factors such as the catalyst promoter, the reactor system, and the periodical regeneration were also critically reviewed. The benefits of utilizing methane from natural gas and other sources, where carbon dioxide is considered as an impurity component, are emphasized. Structured basic catalysts, with periodic regeneration certainties, are strong candidates for industrial applications. Therefore, efforts to build commercial scales for the benefit of global energy industries were highlighted. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Effect Of Reactor Designmentioning

confidence: 98%

“…Therefore, the structured reactors could be better because in situ regeneration is possible [156][157][158][159][160][161][162][163][164][165]. With the commonly employed fixed-bed reactors, the spent catalyst is usually removed at the end of the reaction and regenerated ex situ before further reactions.…”

Section: Reforming Catalyst Regenerationmentioning

confidence: 99%

A review on coke management during dry reforming of methane

Muraza

Galadima

2015

Int. J. Energy Res.

296

139

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“…Up to now, most a ention was devoted to the integration of the OCM process with dry and steam reforming of methane [2,[4][5][6][7][8][9]. Several other possibilities for the integration of OCM with aromatization [10][11][12], benzene alkylation [13], pyrolysis [14], conversion to acetic acid and/or ethanol [15], synthesis Fischer-Tropscha [16], oxidative dehydrogenation of ethane [12,[17][18][19], methanation of CO x [20,21] were also explored.…”

Section: Introductionmentioning

confidence: 99%

Study of oxidative coupling of methane integrated with CO oxidation

Michorczyk¹,

Hędrzak²

2017

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In this work, the process of OCM carried out over Mn-Na 2 WO 4 /SiO 2 integrated with selective oxidation over Ag/support was investigated. the e ect of feed gas composition and OCM bed temperature as well as the position of Ag/support bed and additional oxygen injection before this bed were investigated. At optimal OCM conditions for the Mn-Na 2 WO 4 /SiO 2 catalyst (CH 4 /O 2 = 3.75; V tot = 77 cm 3 /min; T = 780°C), the injection of additional 4 cm 3 /min of oxygen into the bed of Ag/support (working at 250-300°C) leads to a preferential oxidation of CO to CO 2 .Keywords: oxidative coupling of methane, integration with oxidation, ethylene, silver catalyst Streszczenie W pracy zbadano proces OCM w obecności Mn-Na 2 WO 4 /SiO 2 zintegrowany w jednym reaktorze z procesem selektywnego utleniania CO prowadzonym na katalizatorze Ag/nośnik. Zbadano wpływ zmiany parametrów prowadzenia procesu OCM, takich jak skład surowca i temperatury oraz efekt dodatku tlenu nad złoże Ag/nośnik. Wykazano, że w optymalnej temperaturze pracy złoża OCM (CH 4 /O 2 = 3,75; V cał. = 77 cm 3 / min; T = 780°C) wprowadzenie dodatkowo 4 cm 3 /min tlenu nad złoże Ag/nośnik (pracującego w temp. 250-300°C) prowadzi do preferencyjnego utleniania CO do CO 2 .Słowa kluczowe: utleniające sprzęganie metanu, integracja z utlenianiem, etylen, katalizatory srebrowe

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“…In 2016, ethylene was the most produced organic compound, with over 150 million tonnes synthesised. Ethylene production via the oxidative coupling of methane (OCM) process has been studied and developed over the past 30 years (P. Graf, 2008).One of the most promising process integration is the complementary use of the carbon dioxide methane reforming (DRM) process and the OCM process through a novel reactor configuration: the dual membrane reactor proposed by Godini et al (2013). In this design, oxygen is diffused through a porous membrane to the OCM section, as it is passing through the centre of the reactor.…”

Section: Introductionmentioning

confidence: 99%

“…Oxidative coupling of methane (OCM) is considered a promising route to obtain ethylene due to the potential of natural gas as a relatively economical feedstock. In a recent work, this route has been integrated by Godini et al (2013) with methane dry reforming (DRM) in a dual membrane reactor, allowing an improved thermal performance. In this work, we have explored a more ambitious integrated system by coupling the production of methane and carbon dioxide via coal gasification with the DRM-OCM unit.…”

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confidence: 99%