Absorption in liquids

W. A. Steele. Computer simulation studies of the induced far infrared absorption in liquids. In J. Szudy, ed., Spectral Line Shapes 5, p. 653, Ossolineum, Warsaw, 1989. 

Investigations of absorption in liquid-sprayed gas-solid fluidized beds in the context of these investigations are limited to the material system of sulfur dioxide, air, and calcium hydroxide suspension. Here, the calcium hydroxide represents the reactants necessary in the liquid for the shifting of the equilibrium. 

Collision-induced Absorption in Liquids. High-frequency studies of liquids have shown the Poley absorption, indicative of constrained reorientation," for polar substances in the sub-millimetre band. A broad absorption band in the same region was discovered - for non-dlpolar substances such as cyclohexane, benzene, carbon disulphide, and carbon tetrachloride. The order of magnitude of the absorption is compatible with the induction of the fluctuating dipoles by the distribution of the atomic charge on neighbouring molecules. 

R. A. Stuckart, C. J. Montrose, and T. A. Litovitz. Comparison of Interaction Induced Light Scattering and Infrared Absorption in Liquids. In Faraday Symposium of Chemical Society Newer Aspects of Molecular Relaxation Processes, No. II, Chemical Society, London, 1977, pp. 94-105. 

Problem treat 500 SCFM of air containing 14 mol% acetone to remove 95% of the acetone by absorption in liquid water in a packed bed operating at 80°F and 1 atm, with 1-inch raschig rings. The feed water contains 0.02% acetone and the flowrate is... 

Although the use of fossil fuels in Europe is higher in winter than in summer, the concentration of nitrate in the precipitation is higher in summer, because of the higher photochemical activity. The effect is less pronounced for sulphates, because sulphur dioxide also can be oxidized, after absorption in liquid droplets, catalyti-cally by iron or mangenese ions, or by dissolved ozone and hydrogen peroxide. The limiting factor is that the absorption stops, when the acidity of the droplet approaches pH 3. 

Liquid or amorphous materials may (also) show absorption. Here, the absorbate can dissolve in the absorbent, or it can be seen as adsorbing onto the surface of a great number of fine pores in the absorbent. Anyway, the amount absorbed would be proportional to the mass of absorbent, other things being equal. In most dry foods, it is unclear whether the mechanism is adsorption or absorption in liquid foods, it is always the latter. It is rarely observed in a dry food that the equilibrium amount of water taken up depends on the specific surface area of the food. Generally, the term sorption is used, leaving the mechanism involved out of consideration. 

M. Leon, H.A. Behte, Negative meson absorption in liquid hydrogen, Phys. Rev. 127 (1962) 636-647. 

Kinetics measurements of nitrogen absorption in liquid alloys at 1600°C show that Cr decreases slightly the absorption rate of nitrogen [1967Cho], The transfer of N across flic gas/metal interlace is controlled by the transport in the metal. 

Gaseous samples (absorption in liquids, adsorption on solid phases, membrane sampling, and chemical conversion)... 

Instead of using optical frequency doubling other nonlinear effects can also be used, such as two-photon absorption in liquids or solids, which can be monitored by the emitted fluorescence. If the optical pulse is again split into two pulses traveling in the opposite -directions through the sample cell (Fig. 11.46), the spatial intensity profile /fl( ) can be imaged by... 

Several techniques have been developed, also at the industrial level [6, 41, 42, 50-52] to purify biogases from siloxanes, such as condensation, absorption in liquids, adsorption on solids at room temperature and decomposition [39, 53, 54] (Table 7.2 [6]) or combination of refrigeration and adsorption on active carbons [25],... 

ABSORPTION IN LIQUIDS (Continued) Saaiberg-Holter (S-H-U) (limestone/ fonnic acid) NaTec c... 

The removal of hydrocarbon vapors from gas streams by absorption in liquid oils is an important part of many industrial operations. In some cases, such as natural gasoline recovery, the absorption step is but a portion of a refining process that produces several commercial products, and the gas purification aspects of the operation are of little importance. In other cases, such as the removal of aromatics from coke-oven gas, the absorption process serves to improve the value of the product gas. Processes for the removal of light oil (primarily benzene) and naphthalene from coke-oven gas are described in this section. 

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