نتایج جستجو برای: gas phase oxidation

تعداد نتایج: 918604  

Journal: :Eurasian Chemico-Technological Journal 2022

The predicted role of gas chemistry in meeting the global needs for fuels and petrochemicals makes it necessary to increase efficiency chemical processes reduce their energy consumption. An important solving these problems can be played by non-catalytic autothermal oxidation that provide high with minimal demands on composition processed gases preliminary preparation. paper presents latest resu...

Journal: :Angewandte Chemie 2015
Maik Eichelbaum Michael Hävecker Christian Heine Anna Maria Wernbacher Frank Rosowski Annette Trunschke Robert Schlögl

This article addresses the fundamental question of whether concepts from semiconductor physics can be applied to describe the working mode of heterogeneous oxidation catalysts and whether they can be even used to discriminate between selective and unselective reaction pathways. Near-ambient-pressure X-ray photoelectron spectroscopy was applied to the oxidation of n-butane to maleic anhydride on...

2017
Zhuo Yang Junjie Ba Jing Pan Hailiang Wang Zhensong Tong Yupan Yun

Because of its mild reaction condition, relatively high denitrification efficiency and ability of combined removal of various pollutants, the flue gas denitrification technology based on oxidation theory has become a new and feasible method for flue gas denitrification. The technology has been applied extensively and studied in depth. This paper reviews the influencing factors, reaction mechani...

2006
Anita Lee Allen H. Goldstein Melita D. Keywood Song Gao Varuntida Varutbangkul Roya Bahreini Nga L. Ng Richard C. Flagan John H. Seinfeld

[1] The ozonolyses of six monoterpenes (a-pinene, b-pinene, 3-carene, terpinolene, a-terpinene, and myrcene), two sesquiterpenes (a-humulene and b-caryophyllene), and two oxygenated terpenes (methyl chavicol and linalool) were conducted individually in Teflon chambers to examine the gas-phase oxidation product and secondary organic aerosol (SOA) yields from these reactions. Particle size distri...

2008
Daniel Bilbao Jochen Lauterbach

Introduction The oxidation of CO on Pt catalysts has been shown to exhibit complex, non-linear behavior, such as reaction rate oscillations and spatio-temporal pattern formation over a wide range of reaction conditions [1]. At pressures above 1x10 Torr, individual regions of the catalyst surface are primarily coupled through thermal fluctuations within the catalyst itself or by variations in re...

Journal: :Environmental science & technology 2016
Shinichi Enami Yosuke Sakamoto Keiichiro Hara Kazuo Osada Michael R Hoffmann Agustín J Colussi

The oxidation of biogenic dimethyl sulfide (DMS) emissions is a global source of cloud condensation nuclei. The amounts of the nucleating H2SO4(g) species produced in such process, however, remain uncertain. Hydrophobic DMS is mostly oxidized in the gas phase into H2SO4(g) + DMSO(g) (dimethyl sulfoxide), whereas water-soluble DMSO is oxidized into H2SO4(g) in the gas phase and into SO4(2-) + Me...

Journal: :Topics in current chemistry 2014
Neil M Donahue Allen L Robinson Erica R Trump Ilona Riipinen Jesse H Kroll

Organic-aerosol phase partitioning (volatility) and oxidative aging are inextricably linked in the atmosphere because partitioning largely controls the rates and mechanisms of aging reactions as well as the actual amount of organic aerosol. Here we discuss those linkages, describing the basic theory of partitioning thermodynamics as well as the dynamics that may limit the approach to equilibriu...

2014
C. J. Nielsen C. Weller A. Tilgner R. Schrödner Ralf Wolke H. Herrmann

The CO2 Technology Centre Mongstad (TCM) is the world’s largest facility for testing and improving technologies for CO2 capture. The knowledge gained will prepare the ground for full scale CO2 capture initiatives to combat climate change. TCM is a joint venture between the Norwegian state, Statoil, Shell and Sasol. It is located at the West coast of Norway, north of the city Bergen. The centre ...

2002
Robert J. Griffin Donald Dabdub John H. Seinfeld

[1] This series of three papers addresses the representation of secondary organic aerosol (SOA) in atmospheric models. SOA forms when gas-phase organic species undergo oxidation, leading to products of sufficiently low vapor pressure that can partition between the gas and aerosol phases. The present paper, part 1, is devoted to the development of a gas-phase atmospheric chemical mechanism desig...

Journal: :Bulletin of the Chemical Society of Japan 1967

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