Reaction Kinetics of Catalytic Dry Reforming of Methane on Spinel-Derived Nickel Catalyst at Low-Temperature Using an in-Situ Stagnation-Flow Reactor

2020 ◽  
Vol MA2020-02 (68) ◽  
pp. 3621-3621
Author(s):  
Yonggyun Bae ◽  
Jongsup Hong
Keyword(s):  
Low Temperature ◽  
Reaction Kinetics ◽  
Nickel Catalyst ◽  
Flow Reactor ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Stagnation Flow ◽  
Kinetics Of

scholarly journals Preparation, Characterization, and Activity of Pd/PSS-Modified Membranes in the Low Temperature Dry Reforming of Methane with and without Addition of Extra Steam

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 518
Author(s):  
Cecilia Mateos-Pedrero ◽  
Miguel A. Soria ◽  
Antonio Guerrero-Ruíz ◽  
Inmaculada Rodríguez-Ramos
Keyword(s):  
Low Temperature ◽  
Flow Reactor ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Porous Stainless Steel ◽  
Pd Membrane ◽  
Continuous Flow Reactor ◽  
Oxidation In Air ◽  
H2 Yield ◽  
Water Gas

The external surface of a commercial porous stainless steel (PSS) was modified by either oxidation in air at varying temperatures (600, 700, and 800 °C) or coating with different oxides (SiO2, Al2O3, and ZrO2). Among them, PSS-ZrO2 appears as the most suitable carrier for the synthesis of the Pd membrane. A composite Pd membrane supported on the PSS-ZrO2 substrate was prepared by the electroless plating deposition method. Supported Ru catalysts were first evaluated for the low-temperature methane dry reforming (DRM) reaction in a continuous flow reactor (CR). Ru/ZrO2-La2O3 catalyst was found to be active and stable, so it was used in a membrane reactor (MR), which enhances the methane conversions above the equilibrium values. The influence of adding H2O to the feed of DRM was investigated over a Ru/ZrO2-La2O3 catalyst in the MR. Activity results are compared with those measured in a CR. The addition of H2O into the feed favors other reactions such as Water-Gas Shift (RWGS) and Steam Reforming (SR), which occur together with DRM, resulting in a dramatic decrease of CO2 conversion and CO production, but a marked increase of H2 yield.

Dry reforming of methane in a stagnation-flow reactor using Rh supported on strontium-substituted hexaaluminate

2011 ◽  
Vol 394 (1-2) ◽  
pp. 257-265 ◽  
Author(s):  
Nicholas E. McGuire ◽  
Neal P. Sullivan ◽  
Olaf Deutschmann ◽  
Huayang Zhu ◽  
Robert J. Kee
Keyword(s):  
Flow Reactor ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Stagnation Flow

Kinetics of catalytic conversion of methanol at higher pressures

1980 ◽  
Vol 45 (12) ◽  
pp. 3402-3407 ◽  
Author(s):  
Jaroslav Bartoň ◽  
Vladimír Pour
Keyword(s):  
Low Temperature ◽  
Reaction Kinetics ◽  
Water Vapour ◽  
Kinetic Data ◽  
Catalytic Conversion ◽  
The Given ◽  
Kinetics Of

The course of the conversion of methanol with water vapour was followed on a low-temperature Cu-Zn-Cr-Al catalyst at pressures of 0.2 and 0.6 MPa. The kinetic data were evaluated together with those obtained at 0.1 MPa and the following equation for the reaction kinetics at the given conditions was derived: r = [p(CH3OH)p(H2O)]0.5[p(H2)]-1.3.

Transient studies of low-temperature dry reforming of methane over Ni-CaO/ZrO2-La2O3

2013 ◽  
Vol 129 ◽  
pp. 450-459 ◽  
Author(s):  
B. Bachiller-Baeza ◽  
C. Mateos-Pedrero ◽  
M.A. Soria ◽  
A. Guerrero-Ruiz ◽  
U. Rodemerck ◽  
...  
Keyword(s):  
Low Temperature ◽  
Dry Reforming ◽  
Dry Reforming Of Methane

A Single‐Source Precursor Approach to Self‐Supported Nickel–Manganese‐Based Catalysts with Improved Stability for Effective Low‐Temperature Dry Reforming of Methane

ChemPlusChem ◽  
2016 ◽  
Vol 81 (4) ◽  
pp. 370-377 ◽  
Author(s):  
Prashanth W. Menezes ◽  
Arindam Indra ◽  
Patrick Littlewood ◽  
Caren Göbel ◽  
Reinhard Schomäcker ◽  
...  
Keyword(s):  
Low Temperature ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Single Source ◽  
Single Source Precursor ◽  
Improved Stability ◽  
Nickel Manganese

Low-temperature catalytic CO2 dry reforming of methane on Ni-based catalysts: A review

2018 ◽  
Vol 169 ◽  
pp. 199-206 ◽  
Author(s):  
Ye Wang ◽  
Lu Yao ◽  
Shenghong Wang ◽  
Dehua Mao ◽  
Changwei Hu
Keyword(s):  
Low Temperature ◽  
Dry Reforming ◽  
Dry Reforming Of Methane

Kinetic Assessment of the Dry Reforming of Methane over a Solid Solution Ni–La Oxide Catalyst

2021 ◽  
Author(s):  
Victor Stivenson Sandoval-Bohorquez ◽  
Edgar M. Morales-Valencia ◽  
Carlos Omar Castillo-Araiza ◽  
Luz Marina Ballesteros Rueda ◽  
Víctor Gabriel Baldovino Medrano
Keyword(s):  
Solid Solution ◽  
Active Sites ◽  
Oxide Catalyst ◽  
Bond Cleavage ◽  
Scale Up ◽  
Active Surface ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Nickel Surface ◽  
Kinetics Of

The dry reforming of methane is a promising technology for the abatement of CH<sub>4</sub> and CO<sub>2</sub>. Solid solution Ni–La oxide catalysts are characterized by their long–term stability (100h) when tested at full conversion. The kinetics of dry reforming over this type of catalysts has been studied using both power law and Langmuir–Hinshelwood based approaches. However, these studies typically deal with fitting the net CH<sub>4</sub> rate hence disregarding competing and parallel surface processes and the different possible configurations of the active surface. In this work, we synthesized a solid solution Ni–La oxide catalyst and tested six Langmuir–Hinshelwood mechanisms considering both single and dual active sites for assessing the kinetics of dry reforming and the competing reverse water gas shift reaction and investigated the performance of the derived kinetic models. In doing this, it was found that: (1) all the net rates were better fitted by a single–site model that considered that the first C–H bond cleavage in methane occurred over a <a>metal−oxygen </a>pair site; (2) this model predicted the existence of a nearly saturated nickel surface with chemisorbed oxygen adatoms derived from the dissociation of CO<sub>2</sub>; (3) the dissociation of CO<sub>2</sub> can either be an inhibitory or an irrelevant step, and it can also modify the apparent activation energy for CH<sub>4</sub> activation. These findings contribute to a better understanding of the dry reforming reaction's kinetics and provide a robust kinetic model for the design and scale–up of the process.

scholarly journals Reaction kinetics of organo-clay hybrid films: In-situ IRRAS, FIM and AFM studies

2010 ◽  
Vol 71 (3) ◽  
pp. 323-328 ◽  
Author(s):  
Syed Arshad Hussain ◽  
Md N. Islam ◽  
D. Bhattacharjee
Keyword(s):  
Reaction Kinetics ◽  
Hybrid Films ◽  
Organo Clay ◽  
Kinetics Of
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