Hydrogen ethylene and

The adsorption of hydrogen, ethylene, and CO on Pt(l 1 1) was extensively studied. Molecular hydrogen dissodatively adsorbs on the catalytic Pt(l 1 1) surface... 

A few measurements of the changes in magnetization of nickel resulting from the chemisorption of hydrogen, ethylene and acetylene have also been reported by Breeder and his co-workers lOSa, b). Their results and conclusions appear to be qualitatively in accord with those of Selwood. 

The ignition points, 6°, of hydrogen, ethylene, and propylene in nitrons oxide, with a 05 sec. lag, at different press., j> mm., are ... 

The oxides U03 and V206 are reduced to TJ02 and V203 respectively, aldehyde and carbon dioxide resulting. The further action of U02 or V203 gives aldehyde, hydrogen, ethylene and water. 

Methyl Alcohol.—According to Maquenne,2 the vapor of methyl alcohol is decomposed by the silent discharge chiefly into methane and carbon monoxide some hydrogen, ethylene, and acetylene and very little carbonic acid, are also produced. The quantity of hydrogen increases with increasing pressure (from 3-100 mm. mercury pressure), that of the other products decreases ... 

It seems that platinum, like copper, does not catalyse hydrogenations unless its surface is irregular thus Gauger1 found that platinum and nickel distilled on to the surface of glass wool are inactive in hydrogenating ethylene, and the presence of oxygen or water vapour did not initiate catalytic activity in these films. 

On warming in contact with iron, especially in presence of water, dichloroethyl sulphide is decomposed to form thiodiglycol, hydrogen sulphide, diethylene sulphide and its polymers, hydrochloric acid, hydrogen, ethylene and ethylene dichloride. 

Zelikoff and Aschenbrand found that the gaseous products included benzene, diacetylene, hydrogen, ethylene and vinylacetylene. These authors photolysed C2H2 at pressures from 2 to 75 torr at 1849 A. The quantum yield of benzene formation increases markedly with pressure. Although the quantum yield for the disappearance of acetylene also increases with pressure it remains very much larger than the quantum yield of the sum of the products. The quantum yields of di-... 

The effect of Linear Energy Transfer (let) on the radiolysis of methyl iodide has been studied by Sturm and Schwarz The increase of the yields of ethane, methane, hydrogen, ethylene and acetylene with let supports the view of Gillis et that these products are formed by diffusion-controlled reactions of radicals... 

Carbides RC2 are prepared by reduction of the oxides by carbon in the electric furnace. When moistened, the carbides give a complex mixture of gases, of which acetylene, hydrogen, ethylene, and ethane are the most prominent. 

Of particular interest in this chapter are the specific hazards associated with the combustion of methane, hydrogen, ethylene, and carbon monoxide, the decomposition of ethylene and of ozone, and the reaction of a variety of combustibles in air, oxygen, and fluorine. 

Propionic Acid.—The electrolysis of a concentrated solution of sodium propionate was carried out by Jahn and yielded, when the density of the currents employed was not too great, hydrogen, ethylene, and carbon dioxide, but no butane. 

Reaction of a 1 2 10 mixture of hydrogen, ethylene and carbon monoxide at 90°C and 400 atm in the presence of platinum dichloride solutions of molten [(C2H5)4N][SnCla] has been reported to give a 65% combined yield of propionaldehyde and its aldol dimer, 2-methyl-2-pentenal (114). See also Section 6 for a more detailed description of these platinum catalysts dispersed in low-melting tetraalkylammonium salts of trichlorostannate(II). 

Holzapfel M., Wiirsig A., Scheifele W., Vetter J., Novak P. Oxygen, hydrogen, ethylene and CO2 development in lithium-ion batteries, J. Power Sources 2007, 174,1156-1160. 

Shortly afterward the nickel effect was discovered. In a reactor which had been used earlier for hydrogenation, ethylene and triethylaluminum were reacted. Instead of the usual higher molecular weight alkylaluminums, butene-1 was obtained in quantitative yield. It was ascertained that traces of nickel phosphate, which remained after cleaning the reactor, were reduced by the aluminum compounds giving colloidal nickel which acted as the cocatalyst in converting ethylene to butene-1, Subsequently, hexene-1, octene-1, and other a-olefins were synthesized (Ziegler, 1964). 

Hydrogen, ethylene, and methane appear to be primary products, and carbon is possibly a primary product, although not conclusively shown here. Carbon data are somewhat limited relative to that of other species. Few researchers have observed carbon as a primary reaction product. The hydrogen and methane yields are more sensitive to temperature than was ethylene. Both are probably produced by primary as well as secondary reactions (decomposition of butenes and butadiene and also ethylene, the latter at high temperature and conversion). 

Contain LPG, butane, hydrogen, ethylene, and acetylene at any pressure... 

Copper and copper alloys exhibit special catalytic effects in the electroreduction of carbon dioxide. They represent unique cathode materials, which can electrocatalytically convert CO2 and water into hydrocarbons and alcohols, at ambient temperature and atmospheric pressure [2]. So far, copper metal is the only electrode material able to produce significant amounts of hydrocarbons at high reaction rates and over 50% Faradaic yield, over a sustained period of time. Its drawbacks are that a copper electrode can operate only at high overpotential (of almost 1 V), and a mixture of major and minor products are obtained, which contains hydrogen, ethylene and methane [43,47,88]. In these reactions, carbon monoxide appears to be a key intermediate, and its further reduction yields a series of reaction products [2,89]. Copper cathodes can be operated at high current density in aqueous... 

Typically a different grade of HDPE is needed to meet the requirements of each of these applications, which means frequent transitions between grades in the commercial plant. Twenty or more transitions are typically made in a month. A typical transition involves changing multiple reactor synthesis conditions, such as hydrogen, ethylene and comonomer concentrations and reactor temperatures to achieve the desired new MW and MWD. Online physical property predictive models are used to help control the MW and MWD, but hourly QC samples are still required to validate the model s output. This is especially true during product transitions where 30-minute samples are required. 

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