Steam and dry reforming of methane on Rh: Microkinetic analysis and hierarchy of kinetic models

Maestri, Matteo; Vlachos, Dionisios G.; Groppi, Gianpiero; Tronconi, Enrico

doi:10.1016/j.jcat.2008.08.008

Cited by 227 publications

(181 citation statements)

References 30 publications

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“…As reviewed by Enger [36] no unified mechanistic picture for methane CPO could be formulated yet. On selected systems, such as Rh [40,41] and Pt [42,43], very detailed elementary step microkinetic models were postulated based on hierarchical multiscale modeling. On Rh, model predictions are in excellent agreement with experimental data [38,41,44].…”

Section: Catalytic Partial Oxidationmentioning

confidence: 99%

Methane Activation by Heterogeneous Catalysis

2014

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Methane activation by heterogeneous catalysis will play a key role to secure the supply of energy, chemicals and fuels in the future. Methane is the main constituent of natural gas and biogas and it is also found in crystalline hydrates at the continental slopes of many oceans and in permafrost areas. In view of this vast reserves and resources, the use of methane as chemical feedstock has to be intensified. The present review presents recent results and developments in heterogeneous catalytic methane conversion to synthesis gas, hydrogen cyanide, ethylene, methanol, formaldehyde, methyl chloride, methyl bromide and aromatics. After presenting recent estimates of methane reserves and resources the physico-chemical challenges of methane activation are discussed. Subsequent to this recent results in methane conversion to synthesis gas by steam reforming, dry reforming, autothermal reforming and catalytic partial oxidation are presented. The high temperature methane conversion to hydrogen cyanide via the BMA-process and the Andrussow-process is considered as well. The second part of this review focuses on one-step conversion of methane into chemicals. This includes the oxidative coupling of methane to ethylene mediated by oxygen and sulfur, the direct oxidation of methane to formaldehyde and methanol, the halogenation and oxyhalogenation of methane to methyl chloride and methyl bromide and finally the non-oxidative methane aromatization to benzene and related aromates. Opportunities and limits of the various activation strategies are discussed.

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Section: Catalytic Partial Oxidationmentioning

confidence: 99%

Methane Activation by Heterogeneous Catalysis

2014

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“…For all metals used as active species of the catalyst, the reaction is of first-order in CH 4 and virtually of zero order in H 2 O and CO 2 . Moreover, since the turnover frequency of the steam reforming is very close to that of dry reforming, probably neither H 2 O activation nor CO 2 activation intervenes in the rate determining steps of methane conversion (Tavazzi et al, 2006, Donazzi et al, 2008, Maestri et al, 2008.…”

Section: The Steam Reforming Of Hydrocarbonsmentioning

confidence: 99%

Sustainable Hydrogen Production by Catalytic Bio-Ethanol Steam Reforming

Palma¹,

Castaldo²,

Ciambelli³

et al. 2012

Greenhouse Gases - Capturing, Utilization and Reduction

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“…Microkinetic modeling has been applied in the past for a variety of chemical processes such as methane partial oxidation and reforming [14,57,58], selective catalytic reduction of NO x [59,60], NO oxidation [61], ammonia decomposition [13,62], ethylene hydrogenation [63], and Water-Gas Shift [64][65][66], to name a few recent applications.…”

Section: Chapter 3: Surface Reaction Mechanism Developmentmentioning

confidence: 99%

Microkinetic modeling and analysis of ethanol partial oxidation and reforming reaction pathways on platinum at short contact times

Koehle

Mhadeshwar

2012

Chemical Engineering Science

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2013iii ACKNOWLDGEMENTSThere are many people without whom this thesis would not have been possible. I must thank Ashish Mhadeshwar for the incredible amount of knowledge he imparted and the guidance he provided in order for this research to be conducted, shared at conferences and published. Many thanks to Doug Cooper, Bill Mustain and Ranjan Srivastava for standing in as advisors and providing support that was above and beyond expectations. I want to thank everyone that has become part of my UConn family, without whom this project would have been possible but much less fun:

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Steam and dry reforming of methane on Rh: Microkinetic analysis and hierarchy of kinetic models

Cited by 227 publications

References 30 publications

Methane Activation by Heterogeneous Catalysis

Methane Activation by Heterogeneous Catalysis

Sustainable Hydrogen Production by Catalytic Bio-Ethanol Steam Reforming

Microkinetic modeling and analysis of ethanol partial oxidation and reforming reaction pathways on platinum at short contact times

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