Oxidative dimerization of methane has been examined on CaO modified by chlorides or alkaline metals. It has been established that the formation of C 2-hydrocarbons over CaO-CaCl 2 catalysts involves the participation of atomic chlorine generated by the catalyst surface. It has been suggested that ...
Successful scale up of gas recycle reactor-separators for the production o C_2H_4 from CH_4 The oxidative coupling of methane (OCM) reaction has been carried out in a recently developed gas recycle reactor-separator (GRRS), with which high C_2 hyd... M Makri,CG Vayenas - 《Applied Cat...
The combined effect of erosion and oxidation/corrosion on metals and alloys has been the subject of studies. In this project the effects of air flow rate, chlorine content of the sand, angle of incidence on the erosion-corrosion behavior of a Ni based alloy was studied. The current study ...
negative effect on product formation (Table1, entries 6 and 7). The increase or decrease of the reaction current slightly reduced the product yield (Table1, entries 8 and 9). While a lower ethyl diazoacetate of 1.5 mmol or a lower amount of methanol showed a decrease in the amount of ...
Chemical halogenation is an important transformation in organic synthesis. Halogenations involve the use of reactive and toxic halogens (X2) or hydrogen halides (HX). Chemical halogenations are fast and exothermic, but with little regio- or stereoselecti
In Eqn (22.4), chlorine is oxidized from +1 to +3 because the +2 oxidation state is not normally accessible for that atom. Note that in each of these reactions, the number of bonds to the central atom is increased by two. In the reaction shown in Eqn (22.3), sulfur increases in ...
The underlying mechanism of action for all these metals involves formation of the superoxide radical, hydroxyl radical (mainly via Fenton reaction) and other ROS, finally producing mutagenic and carcinogenic malondialdehyde (MDA), 4-hydroxynonenal (HNE) and other exocyclic DNA adducts. On the other ...
A fundamental understanding of the active sites in working catalysts can guide the rational design of new catalysts with improved performances. In this work, we have followed the evolution of homogeneous and heterogeneous Pd catalysts under the reaction conditions for aerobic oxidative coupling of toluen...
under reaction conditions wherein said toluene, when present, is converted to bibenzyl and stilbene, and said acetonitrile, when present, is converted to acrylonitrile. 2. A method in accordance with claim 1 wherein the contact material further consists essentially of a material selected from the ...
(standard deviation) in the figure were obtained from three sampling runs.dC2synthesis over PdCu/TiO2during an intermittent 112-hour reaction with the CH4: O2ratio of 373: 1, these data were collected every 30 min.eSummary of turnover frequency (TOF) and turnover number (TON) achieved on...