scholarly journals Selective Oxidation of Methane to Methanol on Dispersed Copper on Alumina from Readily Available Copper(II) Formate

2021 ◽  
Author(s):  
Jordan Meyet ◽  
Sander van Bavel ◽  
Andrew Horton ◽  
Jeroen van Bokhoven ◽  
Christophe Coperet
Keyword(s):  
Natural Gas ◽  
Selective Oxidation ◽  
Low Cost ◽  
Direct Conversion ◽  
Oxidation Of Methane ◽  
Conversion Of Methane

The direct conversion of methane to methanol attracts increasing interest due to the availability of low-cost methane from natural gas. Significant steps in that direction have already been achieved, using...

scholarly journals Direct Convertion Of Methane To Liquid Hydrocarbons Using HZSM-5 Zeolite Catalyst Loaded With Metal

REAKTOR ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 7
Author(s):  
D. D. Anggoro
Keyword(s):  
Natural Gas ◽  
Packed Bed ◽  
Direct Conversion ◽  
Single Step ◽  
Packed Bed Reactor ◽  
Impregnation Method ◽  
Liquid Hydrocarbons ◽  
Oxidation Of Methane ◽  
Conversion Of Methane ◽  
Main Component

Methane is the main component of natural gas and this research provides the platrorm on the potential of utilizing natural gas, found abundant in Indonesia, to form gasoline. The objectives of the research are to modify HZSM-5 zeolite with a series of transition metals (Cr, Mn, Co, Ni, Cu, and Pt) and Ga , and to evaluate the performances  of these catalyst  for the single step conversion of methane to gasoline. The oxidation of methane were carried out in a micro-packed bed reactor at atmoepheric pressure, temperature 800 0C, F/W = 10440 ml/g.hr and 9%vol O2. Metals were loaded into the HZSM-5 zeolite by the wetness incipient impregnation method. The characterization results indicated that the ionic metals (Mn+) occupy the H+ position of HZSM-5 and metal loaded HZSM-5. Ni- HZSM-5, Cu- HZSM-5 and Ga- HZSM-5 gave a high methane conversion and high gasoline selectivity. Among the catalyst samles tested, Cr- HZSM-5 showed the highest  Research Octane Number (RON=86). These  catalyst have the potential  to convert natural gas to C5+ liquid hydrocarbons provided the oxidation, dehydration and oligomerization function of the metals are in balance.Keywords : direct conversion, methane, liquid hydrocarbons, metal, HZSM-5

Zeolite-supported rhodium sub-nano cluster catalyst for low-temperature selective oxidation of methane to syngas

2017 ◽  
Vol 7 (24) ◽  
pp. 6132-6139 ◽  
Author(s):  
Yuhui Hou ◽  
Sho Ogasawara ◽  
Atsushi Fukuoka ◽  
Hirokazu Kobayashi
Keyword(s):  
Low Temperature ◽  
Selective Oxidation ◽  
Oxidation Of Methane ◽  
Conversion Of Methane ◽  
Nano Cluster

Rh sub-nano clusters supported on zeolite are remarkably more active, selective, and durable than Rh nanoparticles for the conversion of methane to syngas at low temperature.

Selective Methanol Formation via CO-Assisted Direct Partial Oxidation of Methane over Copper Containing CHA-type Zeolites Prepared by One-pot Synthesis

2021 ◽  
Author(s):  
Sibel Sogukkanli ◽  
Takahiko Moteki ◽  
Masaru Ogura
Keyword(s):  
Partial Oxidation ◽  
Direct Conversion ◽  
Partial Oxidation Of Methane ◽  
One Pot ◽  
One Pot Synthesis ◽  
Oxidation Of Methane ◽  
Methanol Formation ◽  
Conversion Of Methane ◽  
Direct Partial Oxidation

Catalytic CO-assisted direct conversion of methane into methanol was demonstrated over Cu-CHA zeolites. Methanol was selectively produced as a solo oxygenate product. The results suggested the necessity of low copper...

scholarly journals The effect of oxidant species on direct, non-syngas conversion of methane to methanol over an FePO4 catalyst material

RSC Advances ◽  
2019 ◽  
Vol 9 (53) ◽  
pp. 30989-31003 ◽  
Author(s):  
Venkata D. B. C. Dasireddy ◽  
Darko Hanzel ◽  
Krish Bharuth-Ram ◽  
Blaž Likozar
Keyword(s):  
Phase Transformation ◽  
Selective Oxidation ◽  
Syngas Conversion ◽  
Oxidation Of Methane ◽  
Conversion Of Methane

The effect of the phase transformation of a FePO4 catalyst material from the tridymite-like (tdm) FePO4 to the α-domain (α-Fe3(P2O7)2) during the direct selective oxidation of methane to methanol was studied using oxidant species O2, H2O and N2O.

Noble-metal-free dye-sensitized selective oxidation of methane to methanol with green light (550 nm)

Nano Research ◽  
2021 ◽  
Author(s):  
Xingyang Wu ◽  
Yi Zeng ◽  
Hangchen Liu ◽  
Jiaqing Zhao ◽  
Tierui Zhang ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Noble Metal ◽  
Green Light ◽  
Metal Free ◽  
Dye Sensitized ◽  
Oxidation Of Methane

scholarly journals Reaction Mechanism for Methane-to-Methanol in Cu-SSZ-13: First-Principles Study of the Z2[Cu2O] and Z2[Cu2OH] Motifs

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 17
Author(s):  
Unni Engedahl ◽  
Adam A. Arvidsson ◽  
Henrik Grönbeck ◽  
Anders Hellman
Keyword(s):  
Liquid Fuel ◽  
Density Functional ◽  
Reaction Pathway ◽  
Direct Conversion ◽  
Reaction Conditions ◽  
Oxidation Of Methane ◽  
Small Pore ◽  
Desorption Step ◽  
Solution Gas ◽  
Stable Motif

As transportation continues to increase world-wide, there is a need for more efficient utilization of fossil fuel. One possibility is direct conversion of the solution gas bi-product CH4 into an energy-rich, easily usable liquid fuel such as CH3OH. However, new catalytic materials to facilitate the methane-to-methanol reaction are needed. Using density functional calculations, the partial oxidation of methane is investigated over the small-pore copper-exchanged zeolite SSZ-13. The reaction pathway is identified and the energy landscape elucidated over the proposed motifs Z2[Cu2O] and Z2[Cu2OH]. It is shown that the Z2[Cu2O] motif has an exergonic reaction path, provided water is added as a solvent for the desorption step. However, a micro-kinetic model shows that neither Z2[Cu2O] nor Z2[Cu2OH] has any notable activity under the reaction conditions. These findings highlight the importance of the detailed structure of the active site and that the most stable motif is not necessarily the most active.

scholarly journals Catalytic Oxidation of Methane

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 944
Author(s):  
Anil C. Banerjee
Keyword(s):  
Power Generation ◽  
Natural Gas ◽  
Catalytic Oxidation ◽  
Energy Sources ◽  
Oxidation Of Methane

Methane (the major component of natural gas) is one of the main energy sources for gas-powered turbines for power generation, and transport vehicles [...]

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