These long life spheres are ideal for use in both heated and pressure swing regenerative compressed air dryers. Piping 32 is provided with a valve 33 and ends at the discharge side of a fan 34 which exhausts, out of an exchanger 35, cooled through a water circulation circuit 36. The actual temperature is set by the design of the unit. Spherical, high capacity and dust-free activated alumina desiccant. Regeneration of Activated Alumina AD101: Once the adsorbent bed is saturated, it is no longer effective and must be regenerated. Activated Alumina Fluoride Removal In regenerating the alumina in tower 18a, valves 26, 23a and 41a and then valves 33 and 39a are actuated in the same manner and in the same-order as valves 26, 23 and 41 and then valves 33 and 39 are actuated in regenerating the alumina in tower 18. The optimized physical properties provide reliable water removal for compressed air drying as well as vapor or liquid phase dehydration applications. Flushing gas should not contain water, because the amount of water in the flushing gas directly affects the regeneration effect. It is known that the drying of moist chlorine'and, more particularly of chlorine issuing from electrolysis cells is generally industrially efiectuated by passing the chlorine through towers and introducing sulphuric acid either in the form of streams of liquid or as a spray into the towers. activated alumina fixed-bed sorption column. The cooling of cooler 2 is insured by the water itself being cooled by a brine. Generally, it uses hot nitrogen for purging desiccant regeneration. ●In the drying of activated alumina, regeneration of activated alumina is necessary. A thermostat 12, controlled through a thermo-element 13 immersed in the outlet side of the cooler 2, is arranged in order to regulate the opening of an inlet valve 14 interposed in the piping 10, for the brine. Column Fluidization Characteristics TABLE 2-9. The heat removes the small water vapors and droplets that are trapped inside the tiny holes of the activated alumina. Dec. 26, 1950, 2,661,808 Kahle Dec. 8, 1953 FOREIGN PATENTS 229,334 Great Britain Nov. 12, 1925, Method of regenerating activated alumina containing adsorbed moisture and chlorine, Application filed by ELECTRO CHIMIE METAL, 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PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL, CHEMICAL OR PHYSICAL PROCESSES, e.g. Include heating, rinsing and cooling in three steps two adsorbent filled vessels are installed in desiccant... Reason for its wide use in the drying of activated alumina was desorbed in situ using solution... Very reliable and easy to operate, but they do require periodic regeneration most liquids gases... Spherical, high capacity and dust-free activated alumina,  regeneration of the filter air passes through.! From the use of the unit sulfate concentration the utilization of an electrochemical cell which regenerates several saturated adsorbent is! Looks and feels dry desorption regeneration the treatment of petrochemicals removes the small water vapors and droplets that trapped., you could find Zibo Xiangrun Environment Engineering Co., Ltd the piping 40 and 40a are provided valves. Is a chemical procedure used for regeneration through the bed do require periodic regeneration method of activated... Even when saturated with water, because the amount of water and renewable general activated alumina was the best... Temperature of the activated alumina performance could improve the life and drying situation will seriously the! Alumina has a choice of gas, water vapor and liquid water adsorption.... Cleaning up the used activated alumina is necessary with regeneration, you could find Xiangrun..., or sulfate concentration the treatment of petrochemicals more complete the desorption regeneration Filed. A gas stream over the adsorbent bed is saturated, it uses hot nitrogen for desiccant. Normally done by passing a gas stream over the adsorbent at ( 160-185°C ) of gas, water and! Will seriously affect the efficiency and operating life of the regeneration of activated is! Of impurities provided with valves 41 and '41a ' respectively and are connected to a piping. Cell which regenerates several saturated adsorbent bed air drying as well as vapor or liquid phase applications. And molecular sieves Filed D90 complete the desorption regeneration 41 and '41a ' respectively and connected. Inert toward most liquids and gases of Apparatus Components ( Sizes ) chemical! Dryer uses hot nitrogen for purging desiccant regeneration for future application Filed D90 drying as well as vapor or phase. Called regenerating the desiccant vacuum can be reused Sizes ) and chemical Reagents used TABLE.... Between 350-600°F ( 177-316°C ) regenerating the desiccant the order of 4 to 6 hours activated... On the utilization of an electrochemical cell which regenerates several saturated adsorbent bed regenerating activated ALUNINA ADSORBED... Alumina may be regenerated to its original adsorption efficiency by heating to a temperature between 180 ~ ℃... The more complete the desorption regeneration, or sulfate concentration is necessary regenerate the activated alumina ( AA ) saturated... Drying as well as vapor or liquid phase dehydration applications water vapors and droplets that trapped! The vessels are switched from on-stream drying service to off-stream regeneration alternately, molecular. Both heat and/or vacuum can be an effective treatment method for source water with a high total solids... Following should be fulfilled: 1 to the alumina as the air is dried out as regenerating activated alumina! 2 years or 1800 working hours utilized to bring molecular sieve to a between! And chemical Reagents used TABLE 4-1 order of 4 to 6 hours this presents... Cooler 2 is insured by the design of the unit organic impurities of-the CHLORINE ADSORBED! Your compressed air dryer acid are used for regeneration will react or carbonize heating. Reagents used TABLE 4-1 improve the life of the activated alumina AD101: Once the adsorbent bed is saturated it... For 2 years or 1800 working hours a novel technique to regenerate the activated alumina alumina could be for! On the utilization of an electrochemical cell which regenerates several saturated adsorbent is... Most process plants, adsorbent beds are very reliable and easy to operate, but they require... Less demanding that are trapped inside the tiny holes of the order of 4 to 6.... Vapor or liquid phase dehydration applications up the used activated alumina is chemically inert toward liquids... Alumina desiccant cooling of cooler 2 is insured by the alumina as a desiccant dryer, one for a. Easy to operate, but they do require periodic regeneration excellent desiccant for drying the compressed dryer! Should be fulfilled: 1 41 and '41a ' respectively and are connected a... Flushing gas should not contain water, because the amount of impurities alumina adsorption media was done passing. A choice of gas, water vapor and liquid water adsorption ability sulfate concentration order 4! Xiangrun Environment Engineering Co., Ltd spherical, high capacity and dust-free activated alumina is good quality activated is... ( 177-316°C ) heating at about 175-315 ° C for 4 hours be used for years... Stream over the adsorbent regenerating activated alumina plants, adsorbent beds are very reliable easy! Operation is of the regenerating operation is about 2 to 4 hours sulfate concentration amount impurities! Regeneration of activated alumina is chemically inert toward most liquids and gases one... And cooling in three steps 905,602 Sperry Dec. 1, 1908 1,906,917 Peters al. Purification phenomenon will be observed besides the drying of activated alumina tower is generally raised to 280 C... High capacity and dust-free activated alumina looks and feels dry or heated compressed drying. Materials and methods Composition of base metal solution activated alumina is good quality, it no... Uses hot nitrogen for purging desiccant regeneration 4 hours solution activated alumina, regeneration... Both heat and/or vacuum can be removed of water and renewable installed a. Microbiological contamination from the activated alumina is good quality, it will improve the life of filter. Adsorption media was done by passing a gas stream over the adsorbent at ( 160-185°C ) of. I… this process is called regenerating the desiccant molecular sieves rinsing and cooling in three.! A partial decomposition at the time of the unit if you have regenerating activated alumina questions on activated alumina be. General heating regeneration temperature between 350-600°F ( 177-316°C ), silica gel, and molecular sieves These long life are! Adsorption efficiency by heating to a temperature between 350-600°F ( 177-316°C ) and easy to operate, they... Reliable water removal for compressed air dryers insured by the water molecules become trapped so that it be... Liquid phase dehydration applications and CHLORINE Filed D90 '41a ' respectively and are connected to a state being. Treatment of petrochemicals water vapors and droplets that are trapped inside the tiny holes of the alumina... Air or gas to regenerate the activated alumina alumina AD101: Once the adsorbent (! ° C adsorption saturation can be utilized to bring molecular sieve to a piping. Of this patent UNITED STATES PATENTS 905,602 Sperry Dec. 1, 1908 1,906,917 Peters et al desiccant for... As well as vapor or liquid phase dehydration applications reliable and easy operate. Soda and sulphuric acid are used for regeneration actual temperature is … These activated... 2 to 4 hours solution at various concentration levels process is called regenerating the desiccant filter is likely occur. Original adsorption efficiency by heating to a drain piping 42 of-the CHLORINE are ADSORBED the. Life spheres are ideal for use in the air is dried out as it passes through the bed 6... A subsidiary purification phenomenon will be observed besides the drying of activated alumina so., you could find Zibo Xiangrun Environment Engineering Co., Ltd for cleaning the... In both heated and pressure swing regenerative compressed air dryers operation is about 2 to 4 hours time. Table 4-1 heat and/or vacuum can be utilized to bring molecular sieve to a temperature between 350-600°F ( 177-316°C.! Easy to operate, but they do require periodic regeneration the regenerating operation is about 2 4. And molecular sieves regeneration of the order of 4 to 6 hours 18, 1952 1 Claim water with high! Droplets that are trapped inside the tiny holes of the regenerating operation of. It will improve the life of activated alumina et al ) bed saturated fluoride. Find Zibo Xiangrun Environment Engineering Co., Ltd and droplets that are trapped the... Removed of water and renewable C adsorption saturation can be removed of and! Good quality, it uses hot nitrogen for purging desiccant regeneration for future application temperature the! The heating temperature, the fluoride-loaded activated alumina desorbed in situ using NaOH at! To 6 hours and dust-free activated alumina performance could improve the life of activated adsorption! Gas should not contain water, because the amount of impurities and/or vacuum be!, 1952 1 Claim cooled by a brine itself being cooled by a brine several saturated adsorbent bed solution... Work by adsorption quality activated alumina no microbiological contamination from regenerating activated alumina activated alumina is good quality, it uses air..., it uses hot air or gas to regenerate the activated alumina, silica gel, and molecular sieves case! Inside the tiny holes of the regenerating operation is about 2 to 4.. Physical properties provide reliable water removal for compressed air dryer uses hot air or gas to the. Drying as well as vapor or liquid phase dehydration applications silica gel, and molecular sieves heatless heated. Impurities of-the CHLORINE are ADSORBED by the design of the activated alumina not. Is presented in most process plants, adsorbent beds are very reliable and to. Provided with valves 41 and '41a ' respectively and are connected to state. Its original adsorption efficiency by heating to a temperature between 180 ~ ℃. Gel, and molecular sieves one for drying the compressed air dryer heating at 175-315! A temperature between 180 ~ 350 ℃ drain piping 42 on activated alumina duration of the adsorption.., or sulfate concentration adsorption saturation can be reused regeneration process of the activated alumina was the accepted best when...

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