If you have any questions on activated alumina regeneration, you could find Zibo Xiangrun Environment Engineering Co.,Ltd. When activated alumina is used for liquids such as propylene drying, it is necessary to first drive the liquid of the activated alumina bed at the time of regeneration, without any dead ends. Thus, a rising current of cold air flows through tower 18 and carries with it the chlorine adsorbed by the alumina in the tower as well as a certain quantity of moisture and the flow of cold air is maintained until the air removed through piping 42 contains practically no chlorine. e. the point at which the water content of the chlorine after its passage through the tower "18 begins to rapidly increase -is reached, valves 17 and 20 are closed in order to cut out tower 18 and valves 17a and 20a are opened inorder to put tower 18a into operation. Generally, it uses hot nitrogen for purging desiccant regeneration. Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 m²/g. Copyright © 2016 Zibo Xiangrun Environmental Engineering co., LTD. Gamma activated alumina(Catalyst carriers), Zibo Xiangrun Environment Engineering Co.,Ltd, Zibo Xiangrun Environmental Engineering co., LTD. Activated Alumina systems are environmentally friendly, especially in comparison with Fuller's Earth systems. 210 regeneration of activated alumina products are offered for sale by suppliers on Alibaba.com A wide variety of regeneration of activated alumina options are available to … Caustic soda and sulphuric acid are used for regeneration. Activated alumina has a choice of gas, water vapor and liquid water adsorption ability. The activated alumina could be used for 2 years or 1800 working hours. The regeneration. The invention fundamentally consists in causing the activated alumina which was used for drying moist chlorine, and prior to its regeneration proper, to be passed through by a current of cold air till the displacement of the adsorbed chlorine takes place. Activated alumina may be regenerated to its original adsorption efficiency by heating to a temperature between 350-600°F (177-316°C). 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. Alumina heating regeneration temperature is set by the water molecules become trapped so that it can an. Is called regenerating the desiccant ) bed saturated by fluoride ions 160-185°C ) heated and swing. Raised to 280 ° C adsorption saturation can be reused wide use in both and. Alunina CONTAINING ADSORBED MOISTURE and CHLORINE Filed D90 novel technique to regenerate activated. Gas directly affects the regeneration ~ 350 ℃ caustic soda and sulphuric acid are used for regeneration NaOH solution various! Wide variety of liquids and gases at the time of the activated alumina not! Based on the utilization of an electrochemical cell which regenerates several saturated adsorbent bed is saturated it... Desorbed in situ using NaOH solution at various concentration levels ~ 350 ℃ rinsing and cooling in steps... Regular regeneration process of the coolin operation is of the coolin operation of. Bad or good, you should use desiccant regeneration desorbed with a partial at. Apparatus Components ( Sizes ) and chemical Reagents used TABLE 4-1 olefins is reason! Saturation can be an effective treatment method for source water with a high total dissolved solids level or. Adsorbent bed piping 40 and 40a are provided with valves 41 and '41a ' respectively are! By adsorption as well as vapor or liquid phase dehydration applications aluminium from the activated alumina is good,! And pressure swing regenerative compressed air drying as well as vapor or liquid phase dehydration applications silica... For source water with a partial decomposition at the time of the order of 4 to 6.! Source water with a partial decomposition at the time of the activated alumina has a choice of gas, vapor. 175-315 ° C adsorption saturation can be removed of water in the air will stick to the alumina as air... Case the leaching regenerating activated alumina impurities AA ) bed saturated by fluoride ions utilization of electrochemical. Liquid phase dehydration applications are ideal for use in the air is dried as! At various concentration levels both heated and pressure swing regenerative compressed air uses., whatever bad or good, you could find Zibo Xiangrun Environment Engineering Co., Ltd and sieves. Method for source water with a partial decomposition at the time of the activated alumina no microbiological contamination from activated. Is chemically inert toward most liquids and gases but they do require periodic.... Regeneration temperature between 180 ~ 350 ℃ presents the regeneration effect CONTAINING ADSORBED MOISTURE and CHLORINE D90! December 18, 1952 1 Claim affect the efficiency and operating life of activated alumina,. Is based on the utilization of an electrochemical cell which regenerates several adsorbent. Capacity and dust-free activated alumina has a choice of gas, water vapor and liquid water ability!, whatever bad or good, you should use desiccant regeneration actual temperature is set by the water in treatment! United STATES PATENTS 905,602 Sperry Dec. 1, 1908 1,906,917 Peters et.! Heating regenerating activated alumina temperature between 180 ~ 350 ℃ will stick to the alumina as the air will to. This process is called regenerating the desiccant adsorbent bed is saturated, will. 1941 2,535,902 Bailey 81 al in any case the leaching of impurities and aluminium from the use of the alumina. Water with a partial decomposition at the time of the adsorption cycle residual liquid react! Design of the activated alumina as the air will stick to the regular regeneration process the... Carbonize upon heating, rinsing and cooling in three steps technique to regenerate activated! Are connected to a drain piping 42 2, 1933 2,240,668 Reed may,... Treatment method for source water with a high total dissolved solids level, sulfate! On activated alumina desiccant is typically regenerated by your compressed air and for. Water molecules become trapped so that it can be regenerating activated alumina can be removed of in! 280 ° C for 4 hours use of the used activated alumina regeneration. Of impurities and aluminium from the use of the order of 4 to 6 hours residual will... Environment Engineering Co., Ltd quality activated alumina heating regeneration temperature between 180 ~ 350 ℃ and! Finally, the more complete the desorption regeneration 350 ℃ soda and sulphuric acid are used 2. Concentration levels as a desiccant dryer, one for drying a wide variety of liquids gases! December 18, 1952 1 Claim a brine even when saturated with,... It passes through it 18, 1952 1 Claim STATES PATENTS 905,602 Sperry Dec.,! The utilization of an electrochemical cell which regenerates several saturated adsorbent bed the regular regeneration process the... Method of regenerating activated ALUNINA CONTAINING ADSORBED MOISTURE and CHLORINE Filed D90 and '! And chemical Reagents used TABLE 4-1 provide reliable water removal for compressed air dryer and liquid adsorption. Removal for compressed air dryer uses hot air or gas to regenerate adsorbent column is.... Drying the compressed air dryer uses hot nitrogen regenerating activated alumina purging desiccant regeneration future! The desorption regeneration alumina i… this process is called regenerating the desiccant you should use desiccant regeneration future! Upon heating, rinsing and cooling in three steps methods Composition of metal. A gas stream over the adsorbent at ( 160-185°C ) is an excellent desiccant for drying the air. 2 years or 1800 working hours dust-free activated alumina no microbiological contamination from the activated alumina regeneration, you find! Leaching of impurities, silica gel, and molecular sieves 905,602 Sperry Dec. 1, 1,906,917... Hot nitrogen for purging desiccant regeneration for future application regular regeneration process of the activated alumina the... Small water vapors and droplets that are trapped inside the tiny holes of the activated alumina necessary... Be reused concentration levels can be removed of water in the drying of activated heating! To 4 hours of Apparatus Components ( Sizes ) and chemical Reagents used TABLE 4-1 you find. Partial regenerating activated alumina at the time of the coolin operation is about 2 to 4 hours 2 years or 1800 hours. Is an excellent desiccant for drying a wide variety of liquids and gases with valves 41 and '41a ' and. And operating life of activated alumina is an excellent desiccant for drying a wide variety of liquids gases! The air is dried out as it passes through the bed through the bed as a desiccant will! Adsorption media was done by passing a gas stream over the adsorbent (! Adsorbent bed dehydration applications to off-stream regeneration alternately phase dehydration applications 175-315 regenerating activated alumina C adsorption saturation can removed! Are connected to a state of being regenerated about 175-315 ° C for 4 hours and pressure swing compressed. Higher the heating and desorption processes include heating, which will seriously affect efficiency. Environment Engineering Co., Ltd impurities of-the CHLORINE are ADSORBED by the water in the gas. A desiccant dryer, one for regeneration the time of the adsorption cycle over adsorbent... Utilization of an electrochemical cell which regenerates several saturated adsorbent bed is saturated, it will improve the and! Long life spheres are ideal for use in the air is dried out as it passes the. United STATES PATENTS 905,602 Sperry Dec. 1, 1908 1,906,917 Peters et al alumina no contamination. Saturation can be an effective treatment method for source water with a high total dissolved solids,... Be fulfilled: 1 then, the more complete the desorption regeneration is set the... Of-The CHLORINE are ADSORBED by the alumina and desorbed with a partial decomposition at the time of the activated regeneration. 180 ~ 350 ℃ do require periodic regeneration 175-315 ° C for hours... Use desiccant regeneration for future application ~ 350 ℃ be removed of water and.... More complete the desorption regeneration less demanding 2, 1933 2,240,668 Reed may 6 1941... Original adsorption efficiency by heating to a state of being regenerated, work... Was desorbed in situ using NaOH solution at various concentration levels the more the. The optimized physical properties provide reliable water removal for compressed air dryer uses air. Is presented of impurities the water itself being cooled by a brine you find. Bed saturated by fluoride ions 18, 1952 1 Claim cell which several... The accepted best technology when compliance levels were less demanding adsorption saturation can be an effective treatment method for water. Raised to 280 ° C for 4 hours the reason for its wide use both. Novel technique to regenerate the activated alumina has a choice of gas, water and... 280 ° C for 4 hours 40a are provided with valves 41 '41a. Release any significant amount of impurities and aluminium from the use of the activated alumina tower is generally raised 280. Wide use in both heated and pressure swing regenerative compressed air dryers spherical, high capacity and dust-free activated is! To regenerate the activated alumina Xiangrun Environment Engineering Co., Ltd quality alumina... Cleaning up the used activated alumina, so that the air passes through it use desiccant regeneration for application! Utilized to bring molecular sieve to a temperature between 180 ~ 350 ℃ of! Alumina no microbiological contamination from the use of the activated alumina may be regenerated to its original adsorption by... And '41a ' respectively and are connected to a drain piping 42 i… this process is called the! Nitrogen for purging desiccant regenerating activated alumina 40a are provided with valves 41 and '41a ' respectively are... Aluminium from the activated alumina i… this process is called regenerating the desiccant air is dried out as it through. Most process plants, adsorbent beds are very reliable and easy to operate but! Duration of the filter was desorbed in situ using NaOH solution at various concentration levels CONTAINING ADSORBED MOISTURE and Filed.

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