Influence of Noble Metals on the Direct Oxidation of Ethylene to Acetic Acid over NM/WO3-ZrO2 (NM = Ru, Rh, and Pd) Catalysts

2009 ◽  
Vol 30 (12) ◽  
pp. 1281-1286 ◽  
Author(s):  
Lixia WANG ◽  
Shuliang XU ◽  
Wenling CHU ◽  
Weishen YANG
Keyword(s):  
Acetic Acid ◽  
Noble Metals ◽  
Direct Oxidation ◽  
Pd Catalysts

Characterization and Evaluation of Carbon-Supported Noble Metals for the Hydrodeoxygenation of Acetic Acid

2018 ◽  
Vol 22 (12) ◽  
pp. 1628-1635 ◽  
Author(s):  
Jose Contreras-Mora ◽  
Ritubarna Banerjee ◽  
Brandon Bolton ◽  
John Valentin ◽  
John R. Monnier ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Noble Metals ◽  
Supported Noble Metals

scholarly journals Synthesis and Characterization of Titanium Supported on High Order Nanoporous Silica and Application for Direct Oxidation of Benzene to Phenol

2009 ◽  
Vol 6 (s1) ◽  
pp. S324-S328 ◽  
Author(s):  
Alireza Badiei ◽  
Javad Gholami ◽  
Yeganeh Khaniani
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Liquid Phase ◽  
Maximum Yield ◽  
Synthesis And Characterization ◽  
Nanoporous Silica ◽  
Radical Mechanism ◽  
Direct Oxidation ◽  
Oxidation Of Benzene

Direct oxidation of benzene to phenol in liquid phase by H2O2peroxide was examined over Ti/ LUS-1 catalyst in methanol and acetic acid as solvents. The maximum yield and selectivity of the phenol produced was obtained in the presence of acetic acid. It can be attributed to the stabilization of H2O2as peroxy acetic acid species in the radical mechanism for this reaction. Acetic acid interacts with hydrogen peroxide over Ti/LUS-1 and produces acetoxy radicals.

scholarly journals Biochemistry of waterlogged soils. Part III: Decomposition of carbohydrates with special reference to formation of organic acids

1929 ◽  
Vol 19 (4) ◽  
pp. 627-648 ◽  
Author(s):  
V. Subrahmanyan
Keyword(s):  
Carbon Dioxide ◽  
Organic Matter ◽  
Acetic Acid ◽  
Lactic Acid ◽  
Organic Acids ◽  
Pyruvic Acid ◽  
Soluble Nitrogen ◽  
Direct Oxidation ◽  
Micro Organisms ◽  
Organic Matter Addition

(1) In absence of decomposing organic matter addition of nitrate led to no loss of nitrogen.(2) On addition of small quantities of fermentable matter such as glucose there was (a) rapid depletion of nitrates and oxygen, but no denitrification, and (b) increase in acidity, carbon dioxide and bacteria. The greater part of the soluble nitrogen was assimilated by microorganisms or otherwise converted and the greater part of the added carbohydrate was transformed into lactic, acetic and butyric acids.(3) The organic acids were formed from a variety of carbohydrates. Lactic acid was the first to be observed and appeared to be formed mainly by direct splitting of the sugar. It decomposed readily, forming acetic and butyric acids. Some acetic acid was formed by direct oxidation of lactic acid, with pyruvic acid as the intermediate product. All the acids were, on standing, converted into other forms by micro-organisms.

Effect of Structure of Pd/WO3-ZrO2 Catalyst on Its Activity for Direct Oxidation of Ethylene to Acetic Acid

2009 ◽  
Vol 30 (9) ◽  
pp. 864-872 ◽  
Author(s):  
Lixia WANG ◽  
Shuliang XU ◽  
Wenling CHU ◽  
Weishen YANG
Keyword(s):  
Acetic Acid ◽  
Direct Oxidation ◽  
Zro2 Catalyst ◽  
Effect Of Structure

Noble Metal Catalysts for Methane Reforming in Material Application Engineering

2013 ◽  
Vol 648 ◽  
pp. 83-87 ◽  
Author(s):  
Wei Hua ◽  
Yong Chuan Dai ◽  
Hong Tao Jiang
Keyword(s):  
Noble Metal ◽  
Noble Metals ◽  
Catalytic Performance ◽  
Metal Catalysts ◽  
Coke Deposition ◽  
Methane Reforming ◽  
Ni Catalysts ◽  
Pd Catalysts ◽  
Noble Metal Catalysts ◽  
Application Engineering

Reforming of methane is an important route to produce sygas. In this paper, recent progresses of noble metals (Rh, Ru, Ir, Pt, Pd) catalysts for methane reforming in material application engineering is reviewed. The discussion mainly focuses on catalytic performance of noble metal catalysts or noble metal promoted Ni catalysts in methane reforming reaction. Effects of noble metals, supports and preparation methods on the catalytic activity, selectivity, coke deposition and stability of catalysts have been briefly summarized. In conclusion, Rh as active component, Pd as material for membrane reactor, Pt or Rh as promoters for Ni catalysts, all gave high CH4 conversion, improving catalytic performance.

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