Absorption removal

Porosity Gas absorption Remove surface scale Remove surface moisture Cleaner gas shield... 

This reaction can be forced to effective complete conversion by first carrying out the reaction to approach equilibrium. The sulfur trioxide is then separated (by absorption). Removal of sulfur trioxide shifts the equilibrium, and further reaction of the remaining sulfur dioxide and oxygen allows effective complete conversion of the sulfur dioxide, Figure 6.6. 

Countercurrent operation that can attain high absorption (removal) efficiency and low outlet concentration of solute. 

To assess the relative importance of the volatilisation removal process of APs from estuarine water, Van Ry et al. constructed a box model to estimate the input and removal fluxes for the Hudson estuary. Inputs of NPs to the bay are advection by the Hudson river and air-water exchange (atmospheric deposition, absorption). Removal processes are advection out, volatilisation, sedimentation and biodegradation. Most of these processes could be estimated only the biodegradation rate was obtained indirectly by closing the mass balance. The calculations reveal that volatilisation is the most important removal process from the estuary, accounting for 37% of the removal. Degradation and advection out of the estuary account for 24 and 29% of the total removal. However, the actual importance of degradation is quite uncertain, as no real environmental data were used to quantify this process. The residence time of NP in the Hudson estuary, as calculated from the box model, is 9 days, while the residence time of the water in the estuary is 35 days [16]. 

Amine treating Treatment Absorption Remove acidic contaminants Sour gas, hydrocarbons with CO2 and H2S Acid-free gases and liquid hydrocarbons... 

Desalting Dehydration Absorption Remove contaminants Crude oil Desalted crude oil... 

Solvent deasphalting Treatment Absorption Remove asphalt Vacuum tower residual, propane Heavy lube oil, asphalt... 

Absorption of hypochlorous acid into water, a liquid-side mass transfer-limited process, showed HTU values as low as 4 cm, with a strong dependence on liquid-flow rate. Heat of absorption removal was identified as a potential issue with absorption in rotating beds (9). 

In the modern era, flashlamps have been superceded by pulsed laser sources which are monochromatic, highly collimated, and have a much higher repetition rate. With a single laser source, the probe pulse can be a small part that is split off from the main pump beam, to therefore be of the same wavelength. Such an arrangement is restricted to the measurement of the kinetics of repopulation of ground-state absorption removed (bleached) by the pump pulse. This method has been employed fruitfully in several laboratories [53-56]. 

Fig. 2 A drug, given as a solid, encounters several barriers and sites of loss in its sequential movement during gastrointestinal absorption. Dissolution, a prerequisite to movement across the gut wall, is the first step. Incomplete dissolution or metabolism in the gut lumen or by enzymes in the gut wall is a cause of poor absorption. Removal of a drug as it passes through the liver further reduces absorption. (From Ref...

The spectrum of a compound containing rapidly exchangeable protons can be simplified, and the exchangeable proton absorption removed, simply by shaking the solution with excess deuterium oxide or by obtaining a spectrum in deuterium oxide solution if the compound is soluble. A peak resulting from HOD will appear, gen-... 

I.D.) packed with 10% aminosilane on Celatome. The absorption (removal) of ketones by stationary phases 1 and 2 (primary amines) is virtually complete (86-100%) alkanones react to the extent of 86-90% with stationary phase 1 and 33 6% with 2. Branched-chain ketones are subtracted only partly, mostly by stationary phase 1. The reactivity— structure dependence is shown in Table 5.6. Aldehydes are subtracted completely by stationary phases 1—3. Stationary phase 4 is not a reagent for subtraction of carbonyl compounds. Note that the data on partial subtraction can be used for a more detailed characterization of the ketone structure. 

Artificial kidney designs will likely continue to experience incremental improvements in the materials and hemodynamic areas. New developments in biocompatible materials, superior transport methods for toxin removal, and improved patient management techniques will allow further maturation of hemodialysis and hemofiltration therapy. For example, considerable benefits could be realized from selective toxin removal without concomitant elimination of beneficial proteins. It has been suggested that future devices might utilize the absorption removal pathway with affinity methods as a primary technique to eliminate specific uremic toxins (Klinkmann and Vienken, 1995). 

Phuphuakrat, T., Namioka, T. and Yoshikawa, K. (2011) Absorptive removal of biomass tar using water and oily material. Bioresource Technology, 102, 543-549. 

Ozturk, B. and Yilmaz, D. (2006) Absorptive removal of volatile organic compounds from flue gas streams. Process Safety and Environmental Protection, 84,391-398. Paethanom, A., Nakahara, S., Kobayashi, M. etal. (2012) Performance of tar removal by absorption and adsorption for biomass gasification. Fuel Processing Technology, 104, 144-154. 

When white light shines on a plastic material, it may be absorbed, reflected, and/or transmitted. Absorption removes certain wavelengths those that remain are the color we see. Opaque pigments, insoluble in the polymer, reflect an opaque color to the eye. Transparent organic dyes, soluble in the polymer, transmit a see-through color to the eye. 

The results of the measurements are shown In Table I for the three lattices. The values cf f Include 1/v absorption in the fuel, and toe values of e include fast absorption above 0.5 Mev. Thus, the value of p includes absorption in excess of l/v absorption and has fast absorption removed. 

Figure 6. The K-edge of Ti in the anatase form of T1O2 experiment (broken line) and theory (solid line). The experiment has had the background absorption removed, and has been scaled such that the peaks at 19.5 eV agree in amplitude, the energy scale of the experiment has also been shifted to produce agreement at this point. A global lifetime broadening of 1.1 eV has been applied to the theory, which includes both a core-hole lifetime and instrumental resolution effect.

Physical absorption removes H2S by absorption in water or an organic solvent [18, 37, 86-88], The most common solvent is water although operational problems due to the growth of microorganisms on the packing occur. 

Absorption. Removal of Cj. from natural gas using n-Octane (lean O)... 

MODEL SYSTEMS TO MEASURE ABSORPTION, REMOVAL, AND DECONTAMINATION... 

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