32results about How to "Low desorption temperature" patented technology

A strengthening and regenerating system for a carbon dioxide capturing solution comprises a regeneration tower, a reboiler, a supersonic generator panel, a supersonic controller, a pressure sensor, a liquid position sensor, and a temperature sensor; rich liquor from an absorption tower enters the regeneration tower from the top part of the regeneration tower, then flows to the bottom part of the regeneration tower, enters the reboiler, absorbs the thermal energy there, and then is returned to the regeneration tower; when the solution submerges the supersonic generator panel, according to the liquid position information obtained by the liquid position sensor, a vibrator in the supersonic generator panel under the liquid position is started to work, then the carbon dioxide in the liquid phase is promoted to evaporate from the liquid phase through a supersonic cavitation effect, then the carbon dioxide rises to the top part of the regeneration tower and forms a pressure; and according to the pressure value measured by the pressure sensor and the temperature value measured by the temperature sensor, the supersonic controller adjusts the output frequency and power of the vibrator in the supersonic generator panel. The system can accelerate the evaporation speed of the carbon dioxide in the solution, reduces the desorption temperature, reduces the external steam consumption, improves the absorption rate of carbon dioxide and the regeneration degree of the solution, and reduces the energy consumption of each unit of carbon dioxide.

The invention relates to a renewable flue gas desulfurization agent and the preparation method thereof. The flue gas desulfurization agent is the aqueous solution of 1,4-bis(2-hydroxypropyl) piperazinyl sulfate containing 30% of 1,4-bis(2-hydroxypropyl) piperazinyl by mass. The flue gas desulfurization can be prepared from the of 1,4-bis(2-hydroxypropyl) piperazinyl and other raw materials, by mixing according to a certain proportioning at normal temperature. Because the pKa1 of the conjugate acid of the 1,4-bis(2-hydroxypropyl) piperazinyl is 3.8, and the pKa2 of that is 8.2, the obtained flue gas desulfurization agent achieves the advantages of large absorbing capacity, high de-absorbing ratio, low de-absorbing temperature and suitable temperature difference in the absorbing and de-absorbing process; can reduce the energy consumption in absorbing and de-absorbing process obviously, and is very suitable for the application in process of removing SO2 in discharged flue gas in coal fired power plant and so on.

The present invention relates to an adsorbent using the porous organic-inorganic hybrid material(s) containing iron having a large surface area and a high pore volume, in particular, a water adsorbent. Also, it relates to an adsorbent that can be used in humidifiers, dehumidifiers, coolers / heaters, a refrigerating machine or an air conditioner, etc., which can easily absorb or desorb at 100° C. and below, and has a great adsorption amount per weight of the adsorbent.Also, the present invention relates to a novel preparation method of porous organic-inorganic hybrid material(s), in particular, a preparation method characterized by not using hydrofluoric acid, porous organic-inorganic hybrid material(s) prepared by said preparation method, and a use as an adsorbent thereof.

The invention discloses a low-temperature moving bed integrated adsorption desulfurization and denitrification system. A flue gas input pipeline containing SO2 and NOx is communicated with an inlet ofa flue gas waste heat recoverer through a flue gas induced draft fan; the outlet of the flue gas waste heat recoverer is communicated with the inlet of the flue gas cooling system; the outlet of theflue gas cooling system is communicated with the flue gas inlet of the low-temperature moving bed adsorption tower; a porous adsorbent outlet in the bottom of the low-temperature moving bed adsorptiontower is communicated with the inlet of the desorption tower, a porous adsorbent outlet of the desorption tower is communicated with a porous adsorbent inlet in the top of the low-temperature movingbed adsorption tower, and the gas outlet of the low-temperature moving bed adsorption tower is communicated with the inlet of a cold energy recoverer; the flue gas cooling system adopts a three-section spray cooling structure, the system can meet the requirement of ultra-clean emission, the desorption temperature is lower, and meanwhile, the adsorbent loss is lower.

The invention relates to a heat-recovery-typed secondary thermal chemisorption refrigeration circulatory system based on pressure-switching desorption, and pertains to the technical field of refrigeration and air-conditioning, wherein, a main reactor outlet is connected with an intermediate control valve inlet, an intermediate control valve outlet is connected with an auxiliary reactor inlet, an auxiliary reactor outlet is connected with an auxiliary control valve inlet, an auxiliary control valve outlet is connected with a condenser inlet, a condenser outlet is connected with a throttle valve inlet, a throttle outlet is connected with an evaporator inlet, an evaporator outlet is connected with a main control valve inlet, and a main control valve outlet is connected with a main reactor inlet. The interior of a main reactor is filled with a high-temperature reaction chemosorbent, the interior of an auxiliary reactor is filled with a medium-temperature chemosorbent, and univariate absorption characteristics of chemosorbents with different reaction temperature ranges are utilized for realizing cooling pressure-switching desorption process of high-temperature reaction absorbents. The heat-recovery-typed secondary thermal chemisorption refrigeration circulatory system of the invention can significantly decrease desorption temperature of the chemosorbent in the thermal chemisorption refrigeration circulatory system and expand the utilization scope of waste heat.

The invention relates to a reproducible polytertiaryamine sulfur dioxide absorbent and a preparation method thereof. The absorbent comprises the following components: (1) polytertiaryamine having a mass concentration in the range from 1% to 80%, which is taken as the major component of the absorbent, wherein the polytertiaryamine exists in a solution in the form of unionized polytertiaryamine, partially ionized quaternary ammonium salt and completely ionized quaternary ammonium salt due to addition of an acid difficult to volatilize; (2) a phenol or quinone material having a mass concentration in the range from 0.01% to 1%, which is used as an antioxidant of the absorbent; (3) 1-50wt% of acid difficult to volatilize, which is used as the cosolvent and stabilizer for the polytertiaryamine; (4) 0.1-10wt% of monoalcohol amine, which is used as an activator of the absorbent; (5) 10-90wt% of water. The absorbent absorbs sulfur dioxide in mixed gases at a low temperature and releases the absorbed sulfur dioxide gas at a high temperature to generate a sulfur dioxide by-product having a dry basis concentration greater than 99%; the absorbent can be recovered and reused.

The invention relates to a treating agent for acid components in mixed gases. The treating agent comprises a composition containing hydramine and amide or a water solution. The treating agent is used for removing and purifying the acid components in the mixed gases, can be applied to the gas treatment processes in the fields such as natural gas extraction, chemical fertilizer gas synthesis, petrochemical production and room-temperature gas recovery.

The invention relates to a treatment agent of acidic components used for mixed gas, which comprises a composite containing hydramine and amide or an aqueous solution. The treatment agent is used for removing and purifying the acidic components in the mixed gas and can be applied to the gas treatment process of the fields of natural gas exploitation, chemical fertilizer synthesis gas, petrochemical production, greenhouse gas recovery and the like.

The invention discloses an alcohol amine type ion liquor-containing compound absorbent capable of capturing carbon dioxide. The alcohol amine type ion liquor-containing compound absorbent is characterized by comprising an absorption component, a corrosion inhibitor, an antioxidant and solvent, wherein the absorption component consists of N-Methyldiethanolamine and ionic liquid (TETAH)<+>(BF4)<->. The invention provides a compound absorbent which is high-efficiency, good in stability, easy to desorb, and low in regeneration energy consumption and can capture carbon dioxide. Organic amine and ionic liquid are mixed, the organic alcamines has the characteristics of being high in absorption rate and large in absorption capacity and the ionic liquid has the properties of low steam pressure and good stability and the like, thus supplementing each other so as to improve the processing capacity of carbon dioxide.

The invention relates to the technical field of resource environment and chemical engineering and especially relates to a composite absorbent for capturing carbon dioxide in flue gas based on a membrane contactor and a use method thereof. The composite absorbent is obtained by compounding of methyldiethanolamine and an alcohol amine. The alcohol amine is a polyamine containing 1-4 amido groups or imino groups. The composite absorbent can be mixed with water according to different ratios. A total amine concentration is in a range of 0.1-1mol / L. For the balance of economy and effects, the optimal total amine concentration is 0.5mol / L. The composite absorbent has a strong capability of absorption of acid gas such as CO2 under a certain condition, is superior to the traditional absorbent containing ethanol amine as a main ingredient, has the advantages of less reaction heat, low desorption temperature, stable chemical properties and no toxicity, and is conducive to industrial application.

The invention relates to a double-stage adsorption refrigerating recycling system which is characterized by consisting of a primary adsorption bed, a secondary adsorption bed, a condenser, an evaporator, a heat exchange tube, a valve and an auxiliary pipeline. Heteroatom SAPO-34 molecular sieves are filled in the primary adsorption bed; and hydrophobic silica gel, activated carbon, pure silicon molecular sieves and at least one of MCM (mesoporous crystalline material) series mesoporous silica materials are filled in the secondary adsorption bed. A desorption process of the primary adsorption bed can be greatly improved by an adsorption effect of the secondary adsorption bed of the double-stage adsorption refrigerating recycling system, and the temperature of a driving heat source of the primary adsorption bed is reduced. The double-stage adsorption refrigerating recycling system has the advantages of low desorption temperature and high adsorbent recycling adsorption quantity, reduction of the size of the system is facilitated, and the efficiency of the adsorption refrigerating system is improved.

The invention provides an adsorption-condensation type air water taking device which is used for continuously taking water. The device comprises a shell, an air filter screen, a separation type adsorption bed, an evaporator, a condenser, a compressor, a water pan, a water storage device, a water filter, a fan and a motor. The separation type adsorbent bed used in the invention combines the hydrogel and a heat exchanger, heat and mass transfer performance of the hydrogel in the adsorption and desorption processes is enhanced, heat and moisture transfer efficiency of air-materials is improved, adsorption-condensation circulation based on a separated adsorption bed is further used, a dew point of air is improved by adopting adsorption circulation, and unit water taking energy consumption in the condensation process is reduced. Besides, the dew point of the air flowing through the adsorption bed can be improved through adsorption-condensation circulation based on the separation type adsorption bed, so energy consumption is reduced, efficiency is improved, and a water taking unit based on the separation type adsorption bed is relatively small, convenient and particularly suitable for flexible water supply in desert arid areas.

The invention discloses a SO4<2-> / metal oxide-loaded filler for desorption of CO2 via an amine solution and a preparation method thereof, the SO4<2-> / metal oxide-loaded filler comprises a porous ceramic filler and catalytic active components attached to the porous ceramic filler, wherein the catalytic active components comprise sulfate SO4<2-> and a metal oxide MxOy. The filler can effectively solve various problems caused by respectively arranging a catalyst and the filler in an absorption tower.

The invention provides a coal slime flotation method with an MEA pregnant solution as a flotation agent. The coal slime flotation method comprises the steps that the MEA pregnant solution and coal slurry are pumped into a stripping tower correspondingly, the temperature in the stripping tower is 80-100 DEG C, the pressure is 0.1MPa, the reaction time is 30-40 min, and then a collector is used forcollecting clean coal after being subjected to flotation; and the volume flow ratio of the MEA pregnant solution to the coal slurry is (3 to 5) to 1. Compared with common CO2 desorption, the desorption temperature is reduced to below 373 K, and the desorption energy consumption is reduced by 20%; and compared with common coal flotation, the recovery rate of coal is increased by 25%, and the flotation energy consumption is reduced by an average of 40%. According to an integrated technology, the energy consumption is reduced, parameters in all aspects of a traditional technology are optimized, efficient CO2 capturing and utilization of fly ash and grizzle in industry (power plant, cement plant and the like) can be realized synchronously, and the coal slime flotation method with the MEA pregnant solution as the flotation agent has significant industrial application value.

The invention relates to a low-temperature refrigeration and cold storage system capable of efficiently utilizing solar energy. The system comprises a compressor (1), a condenser (2), a liquid storage tank (3), an intercooler (4), an evaporator (5), a cooler (6), a first adsorption bed (101), a second adsorption bed (102) and a cold storage adsorption bed (11), wherein, in the daytime refrigeration / cold storage mode, solar energy is utilized to enable the first adsorption bed and the second adsorption bed to work alternately to achieve refrigeration, meanwhile, the cold storage adsorption bed carries out desorption reaction under the suction adjustment effect of the compressor to complete cold storage step by step, and in the night cold release mode, the cold storage adsorption bed continuously adsorbs refrigerants to achieve continuous refrigeration. Compared with the prior art, the compressor is introduced to adjust the desorption pressure of the adsorption bed and reduce the desorption temperature, so that the system actively adapts to the fluctuating solar hot water temperature, and low-temperature desorption and heat absorption are realized; and meanwhile, under the assistance of desorption reaction of the adsorption bed, suction pressure of the compressor is increased, pressure ratio of the compressor is reduced, power consumption of the compressor is reduced, and refrigeration energy efficiency is remarkably improved.

The invention relates to the technical field of energy and power and chemical industry production, and particularly discloses a basic aluminum sulfate regeneration desulfurization process based on retarded oxidation and multi-field synergistic desorption. The process includes: performing desulfurization treatment on dust-bearing raw flue gas through combination of SO3<2-> retarded oxidation and multi-field synergistic desorption, thereby obtaining fly ash and dust-removed raw flue gas; immersing the fly ash in desulfurization rich liquor to prepare aluminum sulfate, and mixing the aluminum sulfate with water, CaCO3 or CaO to obtain basic aluminum sulfate; mixing the basic aluminum sulfate, a oxygen blocking agent, desulfurization rich liquor and desorption lean liquor to obtain a desulfurization mixed liquid; and performance a reaction on the dust-removed raw flue gas and the desulfurization mixed liquid to obtain desulfurization rich liquor and clean flue gas. In the invention, by combination of the characteristics of the desulfurization agent and aiming at the common defects of regeneration desulfurization process, the basic aluminum sulfate having excellent comprehensive performance is selected, so that the desorption effect of the basic aluminum sulfate regeneration desulfurization process is enhanced and the cost of the basic aluminum sulfate desulfurization agent, and meanwhile the technical purpose of economic operation is achieved.

The invention belongs to the gas separation technology area, it relates to a decarbonization solution which recycles or removes the carbon dioxide gas from the mixed gas which contains carbon dioxide, said invention specially relates to an ethoxyl ethylenediamine decarbonization solution. Its characteristic lies in: the invention has designed a new compound decarbonization solution which is composed of the main absorption component, the aid absorption component, the activation component, the corrosion inhibitor, the oxidation inhibitor and the water. Among, the main absorption component is AEE, the aid absorption component is AMP, MDEA and TEA, the activation component is MEA, DEA and PZ, the corrosion inhibitor is vitriol sour sodium, the oxidation inhibitor is the sodium sulfite and the cupric acetate. The effect and the profit of the invention are that it can be used in recycling many kinds of chemical industry reaction exhaust, the carbon dioxide of the combustion flue gas and the mixed gas, may also used in removing the carbon dioxide of town gas, the natural gas and so on, the merit of the decarbonization fluid is that the absorption capacity is big, purification is high, desorption rate is big, regeneration energy consumption is low.

The invention relates to a heat-recovery-typed secondary thermal chemisorption refrigeration circulatory system based on pressure-switching desorption, and pertains to the technical field of refrigeration and air-conditioning, wherein, a main reactor outlet is connected with an intermediate control valve inlet, an intermediate control valve outlet is connected with an auxiliary reactor inlet, an auxiliary reactor outlet is connected with an auxiliary control valve inlet, an auxiliary control valve outlet is connected with a condenser inlet, a condenser outlet is connected with a throttle valve inlet, a throttle outlet is connected with an evaporator inlet, an evaporator outlet is connected with a main control valve inlet, and a main control valve outlet is connected with a main reactor inlet. The interior of a main reactor is filled with a high-temperature reaction chemosorbent, the interior of an auxiliary reactor is filled with a medium-temperature chemosorbent, and univariate absorption characteristics of chemosorbents with different reaction temperature ranges are utilized for realizing cooling pressure-switching desorption process of high-temperature reaction absorbents. The heat-recovery-typed secondary thermal chemisorption refrigeration circulatory system of the invention can significantly decrease desorption temperature of the chemosorbent in the thermal chemisorption refrigeration circulatory system and expand the utilization scope of waste heat.

The invention discloses a low-energy two-phase CO2 capture method, comprising the following steps: (1) mixing a triazole metal salt with a solvent to prepare an absorbent, leading an exhaust gas containing CO2 to the absorbent, generating a product of fine grains by the triazole metal salt after absorbing the CO2, participating the product from a solution, so as to form a two-phase system; (2) separating the two-phase system obtained in the step (1), so as to obtain a sediment and filtrate, reusing the filtrate in the step (1); (3) carrying out heating regeneration treatment on the sediment obtained in the step (2), reusing the obtained triazole metal salt in the step (1), collecting CO2 after condensing the obtained gaseous phase, reusing the solvent generated by condensation in the step (1), wherein the mass percent of the absorbent is 10-40%. The CO2 capture and separation method has the advantages of being low in viscosity, fast in absorption / desorption speed, high in selectivity, large in absorption capacity, and especially low in regeneration energy consumption, and can be recycled.

The invention discloses a membrane for desorbing CO2 from a water solution containing potassium bicarbonate, and a preparation method of the membrane, belonging to the technical field of pervaporationmembrane separation. The membrane consists of a base membrane and an active layer membrane, wherein the active layer membrane is prepared from polydimethylsiloxane, an active crosslinking agent and inorganic nano-material particles; the mass ratio of the active crosslinking agent to the polydimethylsiloxane is equal to 0.1-4; the mass ratio of the inorganic nano-material particles to the polydimethylsiloxane is equal to 0.005-0.1; the inorganic nano-material particles are one or more of nano SiO2, TiO2 and TiO(OH)2, and have particle sizes of 20-100 nm; the active layer membrane has a thickness of 10-70 mum. The preparation method comprises the following steps: adding the inorganic nano-material particles, the active crosslinking agent and a catalyst into a polydimethylsiloxane solution,and carrying out a crosslinking reaction to obtain a membrane solution; coating the base membrane with the membrane solution, and evaporating a solvent to form the membrane. The membrane is suitable for an aqueous solution system, realizes desorption of CO2 in the potassium hydrogencarbonate aqueous solution, and cools the desorption temperature to 70-90 DEG C.

The invention relates to the technical field of energy, power and chemical production, specifically based on the basic aluminum sulfate regeneration desulfurization method based on the inhibition of oxidation and multi-field synergistic desorption. Desulfurization treatment, dust-containing raw flue gas is processed to obtain fly ash and dust-removed raw flue gas; fly ash is immersed in desulfurization rich liquid to react to obtain aluminum sulfate, and aluminum sulfate is mixed with water, calcium carbonate or calcium oxide to obtain basic sulfuric acid Aluminum, mix basic aluminum sulfate, oxygen inhibitor, desulfurization rich liquid and desorption lean liquid to obtain desulfurization mixed liquid; dedusting raw flue gas reacts with desulfurized mixed liquid to obtain desulfurized rich liquid and clean flue gas. The present invention combines the characteristics of the desulfurizer and aims at the common shortcomings of the regenerative desulfurization method, and selects the basic aluminum sulfate with excellent comprehensive performance as the desulfurizer, which not only improves the desorption performance of the basic aluminum sulfate regenerative desulfurization method, but also reduces the cost of the basic aluminum sulfate desulfurizer , while achieving the technical purpose of economic operation.

The invention relates to a device for treating exhaust gas of an internal combustion engine (1). The invention relates to a device for the chemical conversion of at least one exhaust gas component, comprising at least one main catalyst (6) for the chemical conversion of at least one exhaust gas component, a hydrocarbon trap (3) for the temporary storage of hydrocarbons, a nitrogen oxide adsorber (4) for the temporary storage of nitrogen oxides, and an electrically heatable heating catalyst (5), the components (3, 4, 5, 6) are arranged in a spatially limited flow path (2) and are sequentially flowed through.

The invention provides an acid gas trapping agent and a trapping method. The raw material composition of the acid gas trapping agent is propylene carbonate and dimethylimidazole ethylene glycol solution. The present invention also provides a trapping method using the above-mentioned trapping agent, the step of which is: mixing raw gas containing acid gas with the acid gas trapping agent of the present invention. The acid gas trapping agent of the invention can efficiently trap the acid gas in the mixed gas.

The invention belongs to the field of CO2 emission reduction treatment and provides application of thermal stability carbonic anhydrase in catalysis of organic amine solution and desorption of CO2. The thermal stability carbonic anhydrase is an amino acid sequence shown as SEQ ID NO:2. The carbonic anhydrase (PaCA) expressed by gene modification in a lab is adopted for catalyzing CO2 enriched organic amine solution desorption at different temperatures, and the carbonic anhydrase can effectively promote the desorption rate of CO2 at different low desorption temperatures. Compared with a mode with high needed chemical desorption temperature, the application has the advantages that the enzyme catalysis efficiency is high, the desorption temperature can be reduced, the energy consumption is reduced, and the energy is saved.

The present invention relates to a renewable flue gas desulfurization agent and the preparation method thereof. The flue gas desulfurization agent is the aqueous solution of 1,4-bis(2-hydroxypropyl) piperazinyl sulfate containing 30% of 1,4-bis(2-hydroxypropyl) piperazinyl by mass. The flue gas desulfurization can be prepared from the of 1,4-bis(2-hydroxypropyl) piperazinyl and other raw materials, by mixing according to a certain proportioning at normal temperature. Because the pKa1 of the conjugate acid of the 1,4-bis(2-hydroxypropyl) piperazinyl is 3.8, and the pKa2 of that is 8.2, the obtained flue gas desulfurization agent achieves the advantages of large absorbing capacity, high de-absorbing ratio, low de-absorbing temperature and suitable temperature difference in the absorbing and de-absorbing process; can reduce the energy consumption in absorbing and de-absorbing process obviously, and is very suitable for the application in process of removing SO2 in discharged flue gas in coal fired power plant and so on.

The invention discloses a thermal-electric co-driven CO2 capturing system adopting an amine method. The system comprises an absorption tower provided with an electrochemical system inside and a desorption tower provided with an electrochemical system inside, wherein both the absorption tower and the desorption tower are connected with heat exchangers. The system is characterized in that the inside electrochemical systems are formed by adding electrodes to the absorption tower and the desorption tower, so that the absorption and desorption processes are promoted, and energy consumption is reduced. The electrochemical systems can efficiently utilize reaction heat which cannot be utilized by the conventional amine method, the desorption temperature can be substantially reduced, and small-temperature-difference cyclic capturing of CO2 is realized. According to the proposed thermal-electric co-driven CO2 capturing process with the amine method, CO2 can be efficiently captured with low energy consumption, and the system has great engineering application value for efficient and low-cost emission reduction of CO2 in power plants and other industries.

A strengthening and regenerating system for a carbon dioxide capturing solution comprises a regeneration tower, a reboiler, a supersonic generator panel, a supersonic controller, a pressure sensor, a liquid position sensor, and a temperature sensor; rich liquor from an absorption tower enters the regeneration tower from the top part of the regeneration tower, then flows to the bottom part of the regeneration tower, enters the reboiler, absorbs the thermal energy there, and then is returned to the regeneration tower; when the solution submerges the supersonic generator panel, according to the liquid position information obtained by the liquid position sensor, a vibrator in the supersonic generator panel under the liquid position is started to work, then the carbon dioxide in the liquid phase is promoted to evaporate from the liquid phase through a supersonic cavitation effect, then the carbon dioxide rises to the top part of the regeneration tower and forms a pressure; and according to the pressure value measured by the pressure sensor and the temperature value measured by the temperature sensor, the supersonic controller adjusts the output frequency and power of the vibrator in the supersonic generator panel. The system can accelerate the evaporation speed of the carbon dioxide in the solution, reduces the desorption temperature, reduces the external steam consumption, improves the absorption rate of carbon dioxide and the regeneration degree of the solution, and reduces the energy consumption of each unit of carbon dioxide.

The invention relates to a reproducible polytertiaryamine sulfur dioxide absorbent and a preparation method thereof. The absorbent comprises the following components: (1) polytertiaryamine having a mass concentration in the range from 1% to 80%, which is taken as the major component of the absorbent, wherein the polytertiaryamine exists in a solution in the form of unionized polytertiaryamine, partially ionized quaternary ammonium salt and completely ionized quaternary ammonium salt due to addition of an acid difficult to volatilize; (2) a phenol or quinone material having a mass concentration in the range from 0.01% to 1%, which is used as an antioxidant of the absorbent; (3) 1-50wt% of acid difficult to volatilize, which is used as the cosolvent and stabilizer for the polytertiaryamine; (4) 0.1-10wt% of monoalcohol amine, which is used as an activator of the absorbent; (5) 10-90wt% of water. The absorbent absorbs sulfur dioxide in mixed gases at a low temperature and releases the absorbed sulfur dioxide gas at a high temperature to generate a sulfur dioxide by-product having a dry basis concentration greater than 99%; the absorbent can be recovered and reused.

The invention discloses an aluminosilicate adsorbent and a preparation method and an application. The aluminosilicate adsorbent provided by the invention is prepared by casting the following materials: SiO2, NaAlO2, NaOH, TEAOH, CTAB and water by molar ratio of 1:(0.047-0.21):(0.048-0.18):(0.24-0.32):(0.081-0.17):(42.6-56.2). The preparation method comprises the following steps: first, mixing SiO2, NaAlO2, NaOH and TEAOH aqueous liquors, insulating for 2-10 hours at 60-160 DEG C and adding a CTAB aqueous liquor; then, insulating for 38-60 hours at 80-140 DEG C; separating, washing, drying and roasting solids to obtain the aluminosilicate adsorbent. The adsorbent is surface-hydrophilic and has a special micro / mesoporous structure, so that the vapor adsorbing capacity of the absorbent under 10%RH reaches 82mg / g which is as twice as the adsorbing capacity of a type A molecular sieve; the vapor adsorbing capacity of the absorbent under 40%RH reaches 500mg / g which is greater than that of silica gel with same humidity. The absorbent can be completely desorbed and regenerated at 85-90 DEG C, so that the demand on equipment size and energy is reduced, and the energy and material are saved remarkably. The absorbent is suitable for manufacturing rotary adsorbers in the field of gas drying and purification.