Results 241 to 250 of about 4,829,668 (289)

CO2 methanation and co-methanation of CO and CO2 over Mn-promoted Ni/Al2O3 catalysts

Frontiers of Chemical Science and Engineering, 2016
A series of Mn-promoted 15 wt-% Ni/Al2O3 catalysts were prepared by an incipient wetness impregnation method. The effect of the Mn content on the activity of the Ni/Al2O3 catalysts for CO2 methanation and the comethanation of CO and CO2 in a fixed-bed reactor was investigated.
Kechao Zhao, Zhenhua Li, Li Bian
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On the kinetics of the co-methanation of CO and CO2 on a co-precipitated Ni-Al catalyst

Applied Catalysis B: Environmental, 2021
Abstract The kinetics of the gas-phase co-methanation reaction of carbon oxides over a co-precipitated 44 wt.% NiAlOx catalyst were modelled via competitive adsorption of CO and CO2 and the subsequent methanation of a common surface intermediate. Steady-state isotope experiments and model discrimination suggest the decomposition of a hydrogenated ...
Thomas Burger, Philipp Donaubauer, Olaf Hinrichsen   +2 more
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Self-replicating Biophotoelectrochemistry System for Sustainable CO Methanation

Environmental Science & Technology, 2022
Efficient conversion of CO-rich gas to methane (CH4) provides an effective energy solution by taking advantage of existing natural gas infrastructures. However, traditional chemical and biological conversions face different challenges. Herein, an innovative biophotoelectrochemistry (BPEC) system using Methanosarcina barkeri-CdS as a biohybrid catalyst ...
Chao Wang, Jing Yu, Guoping Ren, Andong Hu, Xing Liu, Yiping Chen, Jie Ye, Shungui Zhou, Zhen He   +8 more
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CO reduced to methane electrolytically

Chemical & Engineering News Archive, 1985
Appreciable amounts of methane have been produced electrochemically for the first time from water and carbon dioxide.
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Effect of catalyst properties on selectivity in CO ₂ methanation with coupling pathway of RWGS and CO methanation

Catalysis Science & Technology, 2023
The multiplicity of catalyst structures and modification strategies makes possible different reaction pathways and selectivity of CO 2 methanation, and the reaction mechanism is also controversial.
Hongwei Wang, Huicong Feng, Yali Bao, Junxia Wu, Xiaotong Qu, Xianjun Zhang, Jinrong Liu, Hong Wang   +7 more
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Alloying Co with Pt balances CO₂ and methane activation in dry reforming of methane

Dry reforming of methane (DRM) converts the greenhouse gases CH4 and CO₂ into synthesis gas (a mixture of H₂ and CO). Bimetallic catalysts offer tunable electronic and geometric properties that can overcome the stability and performance limitations of monometallic systems. Here, we investigate the structure and DRM activity of SiO₂-supported bimetallic
Niedbalka, David, Prats, Hector, Díaz López, Estefanía, Janák, Marcel, Piankova, Diana, Loiudice, Anna, Buonsanti, Raffaella, Comas-Vives, Aleix, Müller, Christoph, Abdala, Paula Macarena   +9 more
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On the Kinetics of Co Methanation on Nickel Surfaces

Journal of Catalysis, 1995
A microkinetic model for CO methanation on nickel based on CO dissociation and stepwise hydrogenation of surface carbon is presented. Very good agreement with the methanation rates measured on Ni(100) by Goodman et al. (J. Catal. 63, 226 (1980)) and on nickel foils by Polizzotti and Schwarz (J. Catal. 77, 1 (1982)) is obtained by assuming that the rate-
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CO Methanation Reaction for Improving the CO Tolerance in PEMFC Anodes

ECS Meeting Abstracts, 2013
Abstract not Available.
Guilherme A. Saglietti, Valdecir A. Paganin, Pietro P. Lopes, Edson A. Ticianelli   +3 more
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Methanation of CO on some Ni catalysts

Journal of Catalysis, 1969
The kinetics of methanating CO on a number of nickel catalysts was investigated in the range up to 10% or 20% CO in H2 in a once-through differential reactor where the catalyst particles of size 0.3–0.5 mm were fluidized. The order with respect to CO was less than zero and approached −0.5 at higher CO concentrations.
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CO and CO 2 methanation over supported Ni catalysts

Catalysis Today, 2017
Abstract CO and CO2 methanation was investigated over Ni catalysts supported on different supports such as γ-Al2O3, SiO2, TiO2, CeO2, and ZrO2. Among them, Ni/CeO2 was determined to be the most active for CO and CO2 methanation. These catalytic activities increased with increasing surface area of CeO2.
Thien An Le, Min Sik Kim, Sae Ha Lee, Tae Wook Kim, Eun Duck Park   +4 more
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