Effect of nickel nanoparticle size in Ni/α-Al2O3 on CO methanation reaction for the production of synthetic natural gas

2013 ◽  
Vol 3 (8) ◽  
pp. 2009 ◽  
Author(s):  
Jiajian Gao ◽  
Chunmiao Jia ◽  
Meiju Zhang ◽  
Fangna Gu ◽  
Guangwen Xu ◽  
...  
Keyword(s):  
Natural Gas ◽  
Nanoparticle Size ◽  
Co Methanation ◽  
Synthetic Natural Gas ◽  
Methanation Reaction ◽  
Nickel Nanoparticle ◽  
Α Al2o3

CO2 valorization into synthetic natural gas (SNG) using a Co–Ni bimetallic Y2O3 based catalysts

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Radwa A. El-Salamony ◽  
Sara A. El-Sharaky ◽  
Seham A. Al-Temtamy ◽  
Ahmed M. Al-Sabagh ◽  
Hamada M. Killa
Keyword(s):  
Reaction Mechanism ◽  
Natural Gas ◽  
Fixed Bed ◽  
Catalytic Performance ◽  
Fixed Bed Reactor ◽  
Molar Ratio ◽  
Impregnation Method ◽  
Synthetic Natural Gas ◽  
Methanation Reaction ◽  
Co2 Valorization

Abstract Recently, because of the increasing demand for natural gas and the reduction of greenhouse gases, interests have focused on producing synthetic natural gas (SNG), which is suggested as an important future energy carrier. Hydrogenation of CO2, the so-called methanation reaction, is a suitable technique for the fixation of CO2. Nickel supported on yttrium oxide and promoted with cobalt were prepared by the wet-impregnation method respectively and characterized using SBET, XRD, FTIR, XPS, TPR, and HRTEM/EDX. CO2 hydrogenation over the Ni/Y2O3 catalyst was examined and compared with Co–Ni/Y2O3 catalysts, Co% = 10 and 15 wt/wt. The catalytic test was conducted with the use of a fixed-bed reactor under atmospheric pressure. The catalytic performance temperature was 350 °C with a supply of H2:CO2 molar ratio of 4 and a total flow rate of 200 mL/min. The CH4 yield was reached 67%, and CO2 conversion extended 48.5% with CO traces over 10Co–Ni/Y2O3 catalyst. This encourages the direct methanation reaction mechanism. However, the reaction mechanism over Ni/Y2O3 catalyst shows different behaviors rather than that over bi-metal catalysts, whereas the steam reforming of methane reaction was arisen associated with methane consumption besides increase in H2 and CO formation; at the same temperature reaction.

Active phase of highly active Co3O4 catalyst for synthetic natural gas production

RSC Advances ◽  
2014 ◽  
Vol 4 (100) ◽  
pp. 57185-57191 ◽  
Author(s):  
Baowei Wang ◽  
Sihan Liu ◽  
Zongyuan Hu ◽  
Zhenhua Li ◽  
Xinbin Ma
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Natural Gas ◽  
Active Phase ◽  
Gas Production ◽  
High Catalytic Activity ◽  
Co Methanation ◽  
Synthetic Natural Gas ◽  
Highly Active ◽  
Catalytic Stability

Co3O4 nanoparticles showed high catalytic activity for low temperature CO methanation. CoO is the active phase of the catalyst. Pre-reduction treatment can improve catalytic stability.

scholarly journals CO Methanation for Synthetic Natural Gas Production

2015 ◽  
Vol 69 (10) ◽  
pp. 608-613 ◽  
Author(s):  
Anastasios Kambolis ◽  
Tilman J. Schildhauer ◽  
Oliver Kröcher
Keyword(s):  
Natural Gas ◽  
Gas Production ◽  
Co Methanation ◽  
Natural Gas Production ◽  
Synthetic Natural Gas

Sorption-enhanced synthetic natural gas (SNG) production from syngas: A novel process combining CO methanation, water-gas shift, and CO2 capture

2014 ◽  
Vol 144 ◽  
pp. 223-232 ◽  
Author(s):  
Vanessa M. Lebarbier ◽  
Robert A. Dagle ◽  
Libor Kovarik ◽  
Karl O. Albrecht ◽  
Xiaohong Li ◽  
...  
Keyword(s):  
Natural Gas ◽  
Co2 Capture ◽  
Water Gas Shift ◽  
Co Methanation ◽  
Synthetic Natural Gas ◽  
Water Gas

Production of Synthetic Natural Gas From Carbon Dioxide and Renewably Generated Hydrogen: A Techno-Economic Analysis of a Power-to-Gas Strategy

2018 ◽  
Vol 141 (2) ◽  
Author(s):  
William L. Becker ◽  
Michael Penev ◽  
Robert J. Braun
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Production ◽  
Natural Gas ◽  
Economic Analysis ◽  
Production Costs ◽  
Plant Design ◽  
Low Carbon ◽  
Synthetic Natural Gas ◽  
Methanation Reaction ◽  
Power To Gas

Power-to-gas to energy systems are of increasing interest for low carbon fuels production and as a low-cost grid-balancing solution for renewables penetration. However, such gas generation systems are typically focused on hydrogen production, which has compatibility issues with the existing natural gas pipeline infrastructures. This study presents a power-to-synthetic natural gas (SNG) plant design and a techno-economic analysis of its performance for producing SNG by reacting renewably generated hydrogen from low-temperature electrolysis with captured carbon dioxide. The study presents a “bulk” methanation process that is unique due to the high concentration of carbon oxides and hydrogen. Carbon dioxide, as the only carbon feedstock, has much different reaction characteristics than carbon monoxide. Thermodynamic and kinetic considerations of the methanation reaction are explored to design a system of multistaged reactors for the conversion of hydrogen and carbon dioxide to SNG. Heat recuperation from the methanation reaction is accomplished using organic Rankine cycle (ORC) units to generate electricity. The product SNG has a Wobbe index of 47.5 MJ/m3 and the overall plant efficiency (H2/CO2 to SNG) is shown to be 78.1% LHV (83.2% HHV). The nominal production cost for SNG is estimated at 132 $/MWh (38.8 $/MMBTU) with 3 $/kg hydrogen and a 65% capacity factor. At U.S. DOE target hydrogen production costs (2.2 $/kg), SNG cost is estimated to be as low as 97.6 $/MWh (28.6 $/MMBtu or 1.46 $/kgSNG).

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