نتایج جستجو برای: methanol conversion

تعداد نتایج: 142355  

Journal: :Chinese Journal of Catalysis 2021

H-ZSM-5 zeolite is a typical catalyst for methanol-to-olefins (MTO) conversion. Although the performance of catalysts MTO conversion related to actual location acid sites in framework, catalytic roles different pore channels are not well understood. In this study, reaction network, involving aromatic cycle, alkene and aromatization process, also diffusion behavior methanol feedstock olefin prod...

2016
Craig D. Blanchette Jennifer M. Knipe Joshuah K. Stolaroff Joshua R. DeOtte James S. Oakdale Amitesh Maiti Jeremy M. Lenhardt Sarah Sirajuddin Amy C. Rosenzweig Sarah E. Baker

An industrial process for the selective activation of methane under mild conditions would be highly valuable for controlling emissions to the environment and for utilizing vast new sources of natural gas. The only selective catalysts for methane activation and conversion to methanol under mild conditions are methane monooxygenases (MMOs) found in methanotrophic bacteria; however, these enzymes ...

2015
Mohammed AlKinany Saud A Aldrees Tiancun Xiao Peter P Edwards

Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal’s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains. ...

Journal: :Bulletin of Chemical Reaction Engineering & Catalysis 2022

The interaction between methanol and the Heulandite-type zeolite has been unveiled to give an atomic scale detail regarding catalytic activity of this for conversion. study was carried out by first principle molecular dynamics get insight into structure electronic behaviour inside at different temperatures. studied when location proton Bronsted acid sites varied both possible direct less with m...

Journal: :ACS Catalysis 2022

Formaldehyde is an important intermediate that affects the catalyst performance in methanol-to-hydrocarbons (MTH) conversion. In this study, photoelectron photoion coincidence spectroscopy was applied to elucidate formation of species empty quartz and stainless steel reactors as well over zeolite catalysts (ZSM-5 BETA) commonly used bed diluents (silicon carbide quartz). The yields formaldehyde...

2014
Dong Young Chung Hyoung-il Kim Young-Hoon Chung Myeong Jae Lee Sung Jong Yoo Alok D. Bokare Wonyong Choi Yung-Eun Sung

We propose a method to enhance the fuel cell efficiency with the simultaneous removal of toxic heavy metal ions. Carbon monoxide (CO), an intermediate of methanol oxidation that is primarily responsible for Pt catalyst deactivation, can be used as an in-situ reducing agent for hexavalent chromium (Cr (VI)) with reactivating the CO-poisoned Pt catalyst. Using electro-oxidation measurements, the ...

Journal: :Catalysis Science & Technology 2022

Potential active sites for the conversion of methane to methanol in Cu-exchanged SSZ-13 are identified using a combination experimentally measured UV-vis-NIR spectroscopy and theoretical modeling.

Journal: :Catalysis Science & Technology 2021

The tandem process of carbon dioxide hydrogenation to methanol and its conversion hydrocarbons over mixed metal/metal oxide-zeotype catalysts is a promising path CO2 valorization.

2009
Christian Weilach Günther Rupprechter

Pd supported on ZnO has recently raised great interest as a catalyst for methanol steam reforming. Different from unsupported Pd, Pd-ZnO shows high selectivity and good conversion towards CO2 and hydrogen [1]. The difference is attributed to the formation of a PdZn alloy under reaction conditions, but there is still limited knowledge on the exact surface structure/composition and reaction mecha...

Journal: :Physical Chemistry Chemical Physics 2021

The photochemical conversion of methanol on bifunctional oxidic model catalysts based rutile TiO2 (110) was investigated under special consideration the role point defects in titania sample.

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