Methane Carbon monoxide

Amnioniii Benzene Acetic, ncid Carbon monoxide Methane (lire damp) Iso-amyl acetate Butane n-Bulyl alcohol n-Propyl alcohol Butanol Methanol n-Hexane Turpentine Mineral oils Cycio hexene ... 

Carbon monoxide, methane, ethylene, ethane, ethylene dichloride, aromatic solvent... 

Figure 14. Flammable limits for hydrogen, carbon monoxide, methane, with nitrogen, carbon dioxide and water vapor.

Air, carbon monoxide, methane, and carbon dioxide 25 m Carboplot 007 column at 60°. 

Rock. Where From. Carbon Dioidde Carbon Monoxide. Methane. Nitro- gen. Hydro- gen. 

Chemical/Physical. TCDD was dehalogenated by a solution of poly (ethylene glycol), potassium carbonate, and sodium peroxide. After 2 h at 85 °C, >99.9% of the applied TCDD decomposed. Chemical intermediates identified include tri-, di-, and chloro[Ae]dibenzo[l,4]dioxin, di-benzodioxin, hydrogen, carbon monoxide, methane, ethylene, and acetylene (Tundo et al., 1985). TCDD will not hydrolyze to any reasonable extent (Kollig, 1993). 

Wood distillation was used previously in the U.S. to make methanol, acetic acid, and acetone. Up to 1-2% per wood weight of methanol, 4-5% acetic acid, and 0.5% acetone can be obtained. Many years ago this was the only source of these compounds. It is no longer competitive with the synthetic processes. Some phenols can be obtained, as well as common gases such as carbon dioxide, carbon monoxide, methane, and hydrogen. 

Oxygen difluoride is a strong oxiding agent. When mixed with hydrogen, carbon monoxide, methane or carbon, and ignited with an electrical shock, the mixture explodes forming various products. It catches fire in contact with nitric oxide. 

ZhFizKhim 5, 1459(1934) (Detonation in gaseous mixtures. Variation of the detonation wave velocity with pressure) 6) M.A. Rivin A.S. Sokolik, ZhFizKhim 7, 571 (1936) (The explosion limits of gaseous mixtures. Expln limits of hydrogen-air mixtures) 7) Ibid, 8, 767(1936) (Expln limits in carbon monoxide-methane mixts)... 

Metal Hydrides. The simplest reactions in this group are the various catalytic reduction reactions of carbon monoxide. Methane or higher hydrocarbons, methanol or higher alcohols, and a variety of other oxygenated organic compounds may be formed, depending upon the catalyst and reaction conditions (23). There is little evidence about the mechanism of these reactions, but the initial step in every example is probably a carbon monoxide insertion into a metal hydride, followed by reduction reactions. 

The photolysis of trifluoroacetone with light of wavelength 3130 A. has been studied by Sieger and Calvert.48 The products of decomposition were shown to be carbon monoxide, methane, ethane, 1,1,1-trifluoro-ethane, and hexafluoroethane. There was no indication of the presence of carbon tetrafluoride or methyl fluoride. The quantum yield of all products was low at low temperature and it is assumed that the excited molecule of trifluoroacetone has an appreciable lifetime and may be deactivated by collision before decomposition can occur. This contention is supported by the decrease in the quantum yields observed when foreign gases such as carbon dioxide are added, and by the fall in quantum yields with increase in trifluoroacetone concentration. 

Of particular interest are the curves in Fig. 5. This form corresponds to the most common case when the temperature T0 is so low that, even when very little heat transfer is present, self-ignition is completely out of the question. For all ordinary explosive mixtures of hydrogen, carbon monoxide, methane and other industrial combustible gases with air, at initial room temperature, self-ignition is completely impossible. However, for sufficient fuel concentration and sufficient calorific value of the mixture, the temperature which develops in combustion may be large enough to ensure a very rapid chemical reaction or to ensure the possibility of steady combustion (branch AB of the curve). 

Gases formed in the reaction included carbon monoxide, methane, and hydrogen. The exact equation for the reaction is not known. 

The stepwise electron reduction of C02, whether direct or indirect, catalyzed, or by direct transfer on an apparently inert conductive surface, has been the object of considerable attention since the first concise reports of formate anion production. Since then, the list of possible derivatives has grown from formates to carbon monoxide, methane, ethylene, and short-chain saturated hydrocarbons. As noted in Section 12.1, this area of research has been expanded in recent years [8, 80, 83], with information relating to increased yields, to the effect of electrode materials on selectivity, as well as further speculations on possible reaction mechanisms, having been obtained on a continuous basis. Yet, the key to these synthetic processes-an understanding of the relationship between the surface of the electrode and the synthetic behavior of the system-seems no closer to being identified. 

The contribution of savannah fires exceeds 40% of the global level of biomass burning as a result of which the atmosphere receives minor gas components, such as non-methane hydrocarbons, carbon monoxide, methane, etc., as well as aerosols. According to available estimates for the period 1975-1980, 40%-70% of savannahs were burnt every year, about 6% of such fires took place in Africa. In 1990 about 2 1091 of vegetable biomass were burnt, and as a result 145TgCO got into the atmosphere, which constituted about 30% of anthropogenic CO emissions. 

The gas is then cooled to 30-50 °C and the carbon dioxide is removed by amine absorption or other processes. The remaining impurities - carbon monoxide, methane, nitrogen, argon - are removed in a final pressure-swing adsorption (PSA) step to yield >99.5% pure hydrogen. One of the main problems with this process is that the carbon dioxide is removed by the amine unit as a low-pressure gas. This gas must be compressed to 80 bar to be pipelined for sequestration. This compression step alone requires massive compressors and uses 4—5% of the total power output of the plant. The amine treatment step itself uses even more energy, so the total energy consumption is 15% of the power produced by the plant. 

In complete combustion, the products from burning wood are carbon dioxide, water, and ash. Other gases and vapors that may be present due to incomplete combustion include carbon monoxide, methane, formic acid, acetic acid, glyoxal, and saturated and unsaturated hydrocarbons (46). The aerosols can alsa contain various liquids such as levoglucosan and complex mixtures. The solids can consist of unburned carbon particles and high-molecular-weight tars. 

In aqueous solution, on addition of potassium acetate (Habermann) Besides carbon dioxide and carbon monoxide, methane and potassium, methyl-carbonate. 

The synthesis gas from the waste heat recovery is rich in acid gases and is passed to a "Rectisol" or "Selexol" plant for their removal. During this process small amounts of hydrogen, carbon monoxide, methane, nitrogen and argon are dissolved in the solution and lost from the system in the acid gas stream. 

The samples for gas composition were analyzed by gas chromatography for hydrogen, oxygen, carbon dioxide, carbon monoxide, methane, nitrogen, argon, minor constituents of acetylene, ethane, and ethylene. 

---