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Methane Oxidation to Methanol [PDF]

Chemical Reviews, 2022
The direct transformation of methane to methanol remains a significant challenge for operation at a larger scale. Central to this challenge is the low reactivity of methane at conditions that can facilitate product recovery. This review discusses the issue through examination of several promising routes to methanol and an evaluation of performance ...
Nicholas F. Dummer, David J. Willock, Qian He, Mark J. Howard, Richard J. Lewis, Guodong Qi, Stuart H. Taylor, Jun Xu, Don Bethell, Christopher J. Kiely, Graham J. Hutchings   +10 more
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Methane Oxidation to Methanol in Water [PDF]

Accounts of Chemical Research, 2021
Methane represents one of the most abundant carbon sources for fuel or chemical production. However, remote geographical locations and high transportation costs result in a substantial proportion being flared at the source. The selective oxidation of methane to methanol remains a grand challenge for catalytic chemistry due to the large energy barrier ...
Simon J. Freakley, Nikolaos Dimitratos, David J. Willock, Stuart H. Taylor, Christopher J. Kiely, Graham J. Hutchings   +5 more
openaire   +2 more sources

Lake mixing regime selects apparent methane oxidation kinetics of the methanotroph assemblage [PDF]

Biogeosciences, 2020
In lakes, large amounts of methane are produced in anoxic sediments. Methane-oxidizing bacteria effectively convert this potent greenhouse gas into biomass and carbon dioxide.
M. J. Mayr, M. J. Mayr, M. Zimmermann, M. Zimmermann, J. Dey, B. Wehrli, B. Wehrli, H. Bürgmann   +7 more
doaj   +1 more source

Oxidation and assimilation of atmospheric methane by soil methane oxidizers [PDF]

Applied and Environmental Microbiology, 1997
The metabolism of atmospheric methane in a forest soil was studied by radiotracer techniques. Maximum (sup14)CH(inf4) oxidation (163.5 pmol of C cm(sup-3) h(sup-1)) and (sup14)C assimilation (50.3 pmol of C cm(sup-3) h(sup-1)) occurred at the A(inf2) horizon located 15 to 18 cm below the soil surface. At this depth, 31 to 43% of the atmospheric methane
Roslev, P., Iversen, N.; id_orcid 0000-0002-5316-0425, Henriksen, Kaj   +2 more
openaire   +3 more sources

Enzymatic Oxidation of Methane [PDF]

Biochemistry, 2015
Methane monooxygenases (MMOs) are enzymes that catalyze the oxidation of methane to methanol in methanotrophic bacteria. As potential targets for new gas-to-liquid methane bioconversion processes, MMOs have attracted intense attention in recent years.
Sarah, Sirajuddin, Amy C, Rosenzweig
openaire   +2 more sources

Light-Dependent Aerobic Methane Oxidation Reduces Methane Emissions from Seasonally Stratified Lakes. [PDF]

PLoS ONE, 2015
Lakes are a natural source of methane to the atmosphere and contribute significantly to total emissions compared to the oceans. Controls on methane emissions from lake surfaces, particularly biotic processes within anoxic hypolimnia, are only partially ...
Kirsten Oswald, Jana Milucka, Andreas Brand, Sten Littmann, Bernhard Wehrli, Marcel M M Kuypers, Carsten J Schubert   +6 more
doaj   +1 more source

Thermophilic methane oxidation is widespread in Aotearoa-New Zealand geothermal fields

Frontiers in Microbiology, 2023
Geothermal areas represent substantial point sources for greenhouse gas emissions such as methane. While it is known that methanotrophic microorganisms act as a biofilter, decreasing the efflux of methane in most soils to the atmosphere, the diversity ...
Karen M. Houghton, Karen M. Houghton, Carlo R. Carere, Carlo R. Carere, Matthew B. Stott, Matthew B. Stott, Ian R. McDonald   +6 more
doaj   +1 more source

Electro-assisted methane oxidation to formic acid via in-situ cathodically generated H2O2 under ambient conditions

Nature Communications, 2023
Direct partial oxidation of methane to liquid oxygenates has been regarded as a potential route to valorize methane. However, CH4 activation usually requires a high temperature and pressure, which lowers the feasibility of the reaction.
Jiwon Kim, Jae Hyung Kim, Cheoulwoo Oh, Hyewon Yun, Eunchong Lee, Hyung-Suk Oh, Jong Hyeok Park, Yun Jeong Hwang   +7 more
doaj   +1 more source

Observation of induction period and oxygenated intermediates in methane oxidation over Pt catalyst

iScience, 2023
Summary: Selective oxidation of methane is one of the most attractive routes for methane to chemicals. However, mechanistic understanding and avoiding over-oxidation have great challenges because of its very rapid reaction rate. Herein, a capillary micro-
Kuo Yang, Jinzhe Li, Zhongkui Zhao, Zhongmin Liu   +3 more
doaj   +1 more source

Active pathways of anaerobic methane oxidization in deep-sea cold seeps of the South China Sea

Microbiology Spectrum, 2023
Anaerobic oxidation of methane (AOM) is critical for controlling methane emissions from deep-sea cold seeps. Microbial groups associated with different AOM processes have been briefly investigated, but the AOM activities associated with the utilization ...
Qiuyun Jiang, Hongmei Jing, Xuegong Li, Ye Wan, I-Ming Chou, Lijun Hou, Hongpo Dong, Yuhui Niu, Dengzhou Gao   +8 more
doaj   +1 more source