Dioxide Separation

Hence, water, ammonia, hydrogen fluoride and carbon dioxide separate from the mixture into the gaseous phase. However, despite the possibility of a solid-state interaction, the application of ammonium acetate solutions for washing of... 

Ammonia, hydrogen fluoride and carbon dioxide separate from the system in the form of gaseous components. 

Carbon Dioxide Separation for Fuel Reforming Carbon dioxide separation reforming in the above mentioned is one of useful methodologies for efficient hydrogen production [29]. Calcium oxide (CaO) carbonation can absorb CO2 from the reformed gas and fix it. 

Han, C. and D.P Harrison, Simultaneous shift reaction and carbon dioxide separation for the direct production of hydrogen, Chem. Eng. Sci., 49, 5975-5883,1994. 

Chung, S.J. et al., Dual-phase inorganic metal-carbonate membrane for high temperature carbon dioxide separation, Ind. Eng. Chem. Res., 44, 7999, 2005. 

Gopalan AS, Wai CM, Jacobs HK, eds. Supercritical Carbon Dioxide Separations and Processes. Washington, DC American Chemical Society 2003. 

Selenious Acid, H2Se03.—If a concentrated solution of selenium dioxide in water is evaporated in a vacuum over sulphuric acid, crystals can be obtained having the composition II2Se03.6 Similar crystals can be obtained by recrystallising selenium dioxide from aqueous acetic acid, when the dioxide separates in the hydrated condition.7 Moist benzene may also be used as solvent.8... 

The method of Bruylants and Desmet 8 was similar to the foregoing. Tellurium prepared from hydrogen telluride was treated with nitric acid and the resulting dioxide separated by evaporation, calcined, and... 

Liang, P. and Liu, R. (2007) Speciation analysis of inorganic arsenic in water samples by immobilized nanometer titanium dioxide separation and graphite furnace atomic absorption spectrometric determination. Analytica Chimica Acta, 602(1), 32-36. 

D. Parro, Membrane Carbon Dioxide Separation, Energy Prog. 5, 51 (1985). 

Liquid sulfur dioxide was used to separate the liquefaction products from Texas lignite when Tetralin had been used as the hydrogen donor solvent. The large excess of Tetralin present with the lignite liquefaction products did not interfere with the liquid sulfur dioxide separation procedure. The chemical composition of the fractions were similar to that of SRC and SRL. 

Liang, P., T.Q. Shi, and J. Li. 2004. Nanometer-size titanium dioxide separation/preconcentration and FAAS determination of trace Zn and Cd in water sample. Int. J. Environ. Anal. Chem. 84 315-321. 

Parro, D. (1984) Membrane carbon dioxide separation proves out at Sacroc tertiary recovery project. Oil Gas Journal, 82 (39), 85-86, 88. 

Properties of Membranes for Hydrogen, Oxygen, and Carbon Dioxide Separation... 

Membranes are growing significantly also in gas separation, for example, the current market size of carbon-dioxide separation from natural gas is more than 70 million Euro/year. 

The recently started EU FP7 project HycycleS (Roeb, 2009) builds up upon the results of HYTHEC and aims at the qualification and enhancement of materials and components for key steps of solar- and nuclear-powered thermochemical cycles. Emphasis is placed on materials and components for sulphuric acid evaporation, decomposition and sulphur dioxide separation. The suitability of materials and the reliability of the components will be shown in practice by decomposing sulphuric acid and separating its decomposition products in scalable prototypes. 

Netherlands Energy Research Foundation Combined Cycle Project - IGCC with C02 Removal Project Area - An Attractive Option for C02 Control in IGCC Systems Water Gas Shift with Integrated Hydrogen/Carbon Dioxide Separation (WIHYS) Process - Phase 1 Proof of Principle Alderliesten, P. T. and Bracht, M., eds. Contract JOU2-CT92-0158, Final Report (1995). 

Liquid air provides a convenient agent for the detection of ozone and nitrogen dioxide either together or separately, even although only small quantities of the gaseous mixture are available. When the gas is passed into the liquid air the nitrogen dioxide separates as a solid and can be filtered off, whilst the ozone remains dissolved and can be recovered by careful evaporation of the solvent.3... 

Gamse, T., Marr, R., Froschl, F., and Siebenhofer, M., Extraction of furfural with carbon dioxide. Separation Sci Technol 1997, 32 (1-4), 355-371. 

Colloidal Indium Dioxide is obtained by mixing solutions of potas sium hydroxide and chloriridate in the cold, the solution gradually becoming violet in colour,4 and finally the violet dioxide separates out. 

Manganese (II) sulphate test If a bromate solution is treated with a little of a 1 1 mixture of saturated manganese(II) sulphate solution and m sulphuric acid, a transient red colouration (due to manganese(III) ions) is observed. Upon concentrating the solution rapidly, brown, hydrated manganese dioxide separates. The latter is insoluble in dilute sulphuric acid, but dissolves in a mixture of dilute sulphuric and oxalic acids (difference from chlorates and iodates, which neither give the colouration nor yield the brown precipitate). 

Hydrogen and Carbon Dioxide Production from Steam-Methane Reformer Off Gas Production of Ammonia Synthesis Gas Hydrogen Recovery fiom Refinery Off Gases Methane-Carbon Dioxide Separation from Landfill Gas... 

Tetrakis(triphenylphosphine)platinum(0) is a pale yellow powder which decomposes in the air to a red liquid at 118-120° and melts in vacuo (1 mm.) to a yellow liquid at 159-160°. The infrared spectrum in Nujol show s absorption maxima at 700(vs), 737(vs), 837(w), 992(s), 1022(s), 1077(vs), 1147(m), 1162(m), 1302(w), and 1432(vs) cm. h The compound is soluble in benzene with dissociation by leaving the benzene solution in the air, a white pow der [the carbonatobis(triphenylphosphine)-platinum(II) formed by action of oxygen and carbon dioxide] separates slowly. The compound reacts wdth carbon tetrachloride, giving cfs-dichlorobis(triphenylphosphine)platinum(II). ... 

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