Carbon Dioxide Reforming Of Methane By Catalytic–Plasma Reactor Over Cu/Zn/γ–Al2O3

2012 ◽  
Author(s):  
Maryam Khoshtinat Nikoo ◽  
Mohammad Ali Sharifi ◽  
Noraishah Saidina Amin
Keyword(s):  
Carbon Dioxide ◽  
Plasma Reactor ◽  
Input Power ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Dbd Plasma ◽  
Catalytic Hydrogen ◽  
Fragmentation Reactions ◽  
H2 Yield ◽  
Al2o3 Catalyst

Dalam kajian semasa, pengaruh kuasa input untuk penukaran CH4 dan CO2 ke syngas disiasat di dalam kedua–dua reaktor silinder plasma DBD dan reaktor plasma pemangkin. Diperhatikan bahawa untuk kedua-dua reaktor, input kuasa yang lebih tinggi menyokong tindak balas pemecahan dan bukannya penggabungan semula perantaraan ringan kepada hidrokarbon yang lebih berat, meningkatkan hasil H2. Sementara itu, kehadiran mangkin Cu/Zn/Al2O3 mempertingkatkan pengeluaran H2 daripada 16.5% kepada 19.1%, manakala nisbah H2/CO kekal hampir malar berhampiran nilai 1, nisbah yang sesuai untuk proses FTS. Kata kunci: Plasma; catalytic, hydrogen; dry reforming of methane In the current study, the influence of input power for conversion of CH4 and CO2 into syngas was investigated in both DBD plasma and catalytic–plasma cylindrical reactors. It was observed that for both reactors, higher input power favored fragmentation reactions rather than recombination of light intermediates into heavier hydrocarbons, improving H2 yield. Meanwhile, the presence of Cu/Zn/Al2O3 catalyst enhanced the H2 yield from 16.5 % to 19.1%, while the H2/CO ratio remained almost constant near unity, the suitable ratio for FTS processes. Key words: Plasma, catalytic, hydrogen, dry reforming of methane

Kinetic study of dry reforming of methane using hybrid DBD plasma reactor over La2O3 co-supported Ni/MgAl2O4 catalyst

2020 ◽  
Vol 45 (22) ◽  
pp. 12256-12271 ◽  
Author(s):  
Asif Hussain Khoja ◽  
Muhammad Tahir ◽  
Nor Aishah Saidina Amin ◽  
Adeel Javed ◽  
Muhammad Taqi Mehran
Keyword(s):  
Kinetic Study ◽  
Plasma Reactor ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Dbd Plasma ◽  
Supported Ni

How gas flow design can influence the performance of a DBD plasma reactor for dry reforming of methane

2021 ◽  
Vol 405 ◽  
pp. 126618
Author(s):  
Y. Uytdenhouwen ◽  
J. Hereijgers ◽  
T. Breugelmans ◽  
P. Cool ◽  
A. Bogaerts
Keyword(s):  
Gas Flow ◽  
Plasma Reactor ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Dbd Plasma

scholarly journals Recent Developments in Dielectric Barrier Discharge Plasma-Assisted Catalytic Dry Reforming of Methane over Ni-Based Catalysts

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 455
Author(s):  
Xingyuan Gao ◽  
Ziting Lin ◽  
Tingting Li ◽  
Liuting Huang ◽  
Jinmiao Zhang ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Energy Input ◽  
Barrier Discharge ◽  
Plasma Reactor ◽  
High Energy ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Dbd Plasma ◽  
Dielectric Barrier ◽  
Recent Developments

The greenhouse effect is leading to global warming and destruction of the ecological environment. The conversion of carbon dioxide and methane greenhouse gases into valuable substances has attracted scientists’ attentions. Dry reforming of methane (DRM) alleviates environmental problems and converts CO2 and CH4 into valuable chemical substances; however, due to the high energy input to break the strong chemical bonds in CO2 and CH4, non-thermal plasma (NTP) catalyzed DRM has been promising in activating CO2 at ambient conditions, thus greatly lowering the energy input; moreover, the synergistic effect of the catalyst and plasma improves the reaction efficiency. In this review, the recent developments of catalytic DRM in a dielectric barrier discharge (DBD) plasma reactor on Ni-based catalysts are summarized, including the concept, characteristics, generation, and types of NTP used for catalytic DRM and corresponding mechanisms, the synergy and performance of Ni-based catalysts with DBD plasma, the design of DBD reactor and process parameter optimization, and finally current challenges and future prospects are provided.

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.

scholarly journals Role of Mixed Oxides in Hydrogen Production through the Dry Reforming of Methane over Nickel Catalysts Supported on Modified γ-Al2O3

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 157
Author(s):  
Ahmed Sadeq Al-Fatesh ◽  
Mayankkumar Lakshmanbhai Chaudhary ◽  
Anis Hamza Fakeeha ◽  
Ahmed Aidid Ibrahim ◽  
Fahad Al-Mubaddel ◽  
...  
Keyword(s):  
Mixed Oxides ◽  
Nickel Catalysts ◽  
H2 Production ◽  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Incipient Wetness Impregnation ◽  
Thermally Stable ◽  
Oxide Systems ◽  
Catalyst Systems ◽  
H2 Yield

H2 production through dry reforming of methane (DRM) is a hot topic amidst growing environmental and atom-economy concerns. Loading Ni-based reducible mixed oxide systems onto a thermally stable support is a reliable approach for obtaining catalysts of good dispersion and high stability. Herein, NiO was dispersed over MOx-modified-γ-Al2O3 (M = Ti, Mo, Si, or W; x = 2 or 3) through incipient wetness impregnation followed by calcination. The obtained catalyst systems were characterized by infrared, ultraviolet–visible, and X-ray photoelectron spectroscopies, and H2 temperature-programmed reduction. The mentioned synthetic procedure afforded the proper nucleation of different NiO-containing mixed oxides and/or interacting-NiO species. With different modifiers, the interaction of NiO with the γ-Al2O3 support was found to change, the Ni2+ environment was reformed exclusively, and the tendency of NiO species to undergo reduction was modified greatly. Catalyst systems 5Ni3MAl (M = Si, W) comprised a variety of species, whereby NiO interacted with the modifier and the support (e.g., NiSiO3, NiAl2O4, and NiWO3). These two catalyst systems displayed equal efficiency, >70% H2 yield at 800 °C, and were thermally stable for up to 420 min on stream. 5Ni3SiAl catalyst regained nearly all its activity during regeneration for up to two cycles.

Dry Reforming of Methane in DBD Plasma over Ni‐Based Catalysts: Influence of Process Conditions and Support on Performance and Durability

2019 ◽  
Vol 7 (4) ◽  
pp. 1801008 ◽  
Author(s):  
Debjyoti Ray ◽  
Devadutta Nepak ◽  
Sagar Janampelli ◽  
Partha Goshal ◽  
Ch. Subrahmanyam
Keyword(s):  
Dry Reforming ◽  
Dry Reforming Of Methane ◽  
Process Conditions ◽  
Dbd Plasma
Sign in / Sign up

Export Citation Format

Share Document