15results about How to "Efficient desorption" patented technology

The invention belongs to the technical field of environmental protection, and discloses a method for rapidly and efficiently removing and recycling polycyclic aromatic hydrocarbon in water and a carbon-based adsorbent, the method comprises the following steps: S1, preparing a modified carbon-based adsorbent; s2, treating the polycyclic aromatic hydrocarbon pollutant wastewater; and S3, recycling the polycyclic aromatic hydrocarbon. According to the preparation method, H3PO4 or ZnCl2 is taken as an activating agent, and an activated carbon base material and an activating process are controlled, so that nano-micron multi-scale modified carbon-based adsorbent particles which are mainly prepared from a large number of long-strip-shaped gap mesopores which are communicated with one another and are approximately distributed in parallel and are auxiliary from a small number of discrete irregular groove-shaped mesopores are obtained; the long and narrow long-strip-shaped gap mesopores of the particle are matched with the irregular groove-shaped mesoporous structure, so that large-size polycyclic aromatic hydrocarbon can be quickly adsorbed and desorbed, and the balance of adsorption and desorption efficiency can be realized; on one hand, the adsorption and desorption efficiency of pollutants is improved, and on the other hand, the dosage of the adsorbent is greatly reduced.

The utility model discloses a hydrogen peroxide production tail gas treatment system, which relates to the technical field of tail gas treatment and comprises a gas adsorption tank internally provided with an adsorbent capable of adsorbing aromatic hydrocarbon; the tail gas header pipe is connected with the gas adsorption tank; the low-pressure steam conveying pipeline is connected with the gas adsorption tank; the emptying pipeline is connected with the gas adsorption tank; one end of the first condenser is connected with the gas adsorption tank; the recovery pipeline is connected with the other end of the first condenser; the wastewater adsorber is connected with the low-pressure steam conveying pipeline and the recovery pipeline; one end of the second condenser is connected with the wastewater adsorber, and the other end is connected with the recovery pipeline; one end of the circulating water tank is connected with the wastewater adsorber, and the other end is connected with the circulating water station; the cutting devices are arranged at the joints of the treatment system; according to the hydrogen peroxide production tail gas treatment system, efficient adsorption and desorption of aromatic hydrocarbon in oxidized tail gas can be achieved, the aromatic hydrocarbon is recycled, emission of tail gas and waste water is reduced, and the hydrogen peroxide production efficiency and benefits are improved.

The present invention provides a cross-linked spore phenol adsorbent based on a nucleic acid aptamer functionalized magnetic hydrophobic polymer and its application, which is obtained by coupling a nucleic acid aptamer with a magnetic hydrophobic polymer, wherein the magnetic hydrophobic polymer is a copolymer of magnetic nanoparticles, methyl methacrylate and vinyl ethylene carbonate, wherein the nucleic acid aptamer can specifically identify AOH, and the magnetic hydrophobic polymer is designed according to the molecular structure of AOH, and can increase the hydrophobic interaction with AOH, and under the synergistic effect of the nucleic acid aptamer and the magnetic hydrophobic polymer, the efficient and highly specific adsorption of AOH is achieved. The cross-linked spore phenol adsorbent based on a nucleic acid aptamer functionalized magnetic hydrophobic polymer provided by the present invention can be used for the efficient and highly specific adsorption of toxin target molecules having a hydrophobic class under the premise of changing the corresponding aptamer to which it is bonded.

The invention provides an air pollutant purification system and method, and relates to the field of air pollutant purification, the air pollutant purification system comprises a freezing assembly, an air circulation assembly, a desorption assembly and a discharge assembly, various gaseous pollutants can be treated through a liquid nitrogen freezing technology which is difficult to achieve through a single technology, the gaseous pollutants are frozen or liquefied through low temperature, and the gaseous pollutants can be treated through a desorption assembly. Various pollutants can be efficiently removed in a short time. Besides, the air pollutant purification system comprises three working conditions of purification, desorption and emission, and the three working conditions are tightly matched to form a closed-loop system, so that efficient purification of various air pollutants is realized. The arrangement of a closed-loop system ensures thorough removal of pollutants and efficient operation of the system, and has extremely high energy utilization efficiency and environmental protection property.

The application provides a calcium-based particulate material-based carbon dioxide capturing system and a control method thereof, and the system comprises a reactor, a decomposition bin, a conveying branch and an input branch; the input branch inputs raw flue gas to the reactor; the conveying branch conveys calcium-based particulate material to the reactor by using heated flue gas; the reactor controls the internal temperature by selecting the input raw flue gas of the input branch, so as to control the progress of the adsorption reaction; and the decomposition bin controls the movement of the supporting plate by using mechanical action and air pressure action, so as to guide the flow of the material and control the progress of the desorption reaction. The application constructs a complete and ingenious heat circulation process and material circulation process, the circulation processes are connected with each other, the structure design is ingenious and practical, the energy utilization efficiency is improved, the energy consumption is reduced, the equipment maintenance cost and the energy procurement cost are reduced while the efficient adsorption and desorption of carbon dioxide are ensured.

The invention provides a device and a method for trapping carbon dioxide by coupling supergravity with in-situ organic steam stripping enhanced ionic liquid, belongs to the technical field of carbon dioxide trapping, and aims to solve the technical problem of poor desorption effect of the ionic liquid. The non-aqueous ionic liquid absorbent is prepared by mixing an ionic liquid, an organic solvent and a steam stripping solvent; raw material gas and a non-aqueous ionic liquid absorbent are introduced into an absorption device for countercurrent contact, the non-aqueous ionic liquid absorbent absorbs carbon dioxide and discharges a non-aqueous ionic liquid-rich solution, the non-aqueous ionic liquid-rich solution is heated to a desorption temperature and sent to a desorption device for separation, and carbon dioxide, stripping steam and non-aqueous ionic liquid absorbent residual liquid are obtained; and condensing the stripped steam to obtain high-purity carbon dioxide gas. The method disclosed by the invention has remarkable advantages in the aspects of reducing the energy consumption of the system, improving the trapping efficiency, simplifying the operation process and the like, and is suitable for CO2 trapping in various occasions, such as coal-fired power plant flue gas, industrial emission tail gas, oilfield associated gas and the like.

The present application relates to geothermal water treatment technical field, disclose a kind of geothermal water water gas separation device, including tank body, tank cover being located at the top of tank body, inlet being located at the top of tank body, drain outlet being located at the bottom of tank body and exhaust port being located at the top of tank cover, further including multistage water collecting assembly being located in the middle of the inner cavity of tank body and resonance separation assembly being located in the inner cavity of tank body;Multistage water collecting assembly includes three groups of arc water collecting pipes being spaced apart along the axial direction of tank body and spiral water injection pipe being communicated with inlet;Resonance separation assembly includes umbrella-shaped water catcher being fixedly installed in tank cover, vertical rod being fixedly connected in the center of umbrella-shaped water catcher and extending downward, and three groups of floating units being arranged on vertical rod;The present application is provided with floating unit, so that conical screen disc produces continuous vibration when fluid impact, and the vibration forms shear force and local disturbance in fluid, which can break the stable state of micro-bubbles in water body, promote its desorption and collision coalescence.

The application discloses a variable-flow type purification device of a hydrogen purification adsorption tower and belongs to the technical field of hydrogen purification. The variable-flow type purification device of the hydrogen purification adsorption tower comprises a tower body, vacuum extraction pipes and gas inlet pipes are connected to the lower outer side of the tower body, an exhaust pipe is connected to the top of the tower body, first and second positioning screens are fixedly arranged on the inner side of the tower body, a fixing seat is fixedly installed on the upper inner side of the tower body, an elastic lifting connection is formed between the upper part of the fixing seat and a movable seat, a sealing plate is also fixedly installed on the upper inner side of the tower body, a rubber cylinder body for adjusting air pressure is fixedly connected between the movable seat and the sealing plate, and a flushing pipe is connected to the outer side of the upper part of the tower body. The variable-flow type purification device of the hydrogen purification adsorption tower can realize real-time regulation and control of the gas flow rate according to the purity of hydrogen purification, ensures the purification efficiency and the purity, and can realize efficient desorption in a combined manner, so that effective adsorption and purification of the adsorption tower are ensured.

The utility model provides a resin adsorption device which comprises an outer tank, an inner tank is arranged in the outer tank and penetrates out of the upper end and the lower end of the outer tank, a resin adsorption area is formed in the middle of the inner tank, a first filter layer is arranged on the upper portion of the resin adsorption area, and a second filter layer is arranged on the lower portion of the resin adsorption area. A liquid inlet is formed in the top end of the inner tank, a liquid discharge pipe is connected to the bottom end of the inner tank, a tubular aerator is arranged in the inner tank, is positioned at the bottom of the resin adsorption area and is connected with a gas conveying pipe, and the gas conveying pipe penetrates out of the side walls of the inner tank and the outer tank. According to the utility model, the tubular aerators are arranged in the resin adsorption area of the inner tank, so that the resin is in a floating state in sewage, the contact area with the sewage is increased, and the adsorption effect of the resin is effectively improved.

The utility model relates to the technical field of desorption, in particular to an efficient adsorption and desorption device for a laboratory, which comprises a base, a protection box is arranged above the base, a removable adsorption and desorption structure is slidably arranged in the protection box, and the removable adsorption and desorption structure comprises an activated carbon storage box and a plurality of placing plates arranged in the activated carbon storage box. The hollowed-out sealing door is connected to an opening in the side face of the activated carbon storage box, a plurality of ventilation grooves are formed in the containing plate in a penetrating mode, and a sealing door is installed at an opening in the side face of the protection box. The adsorption and desorption of impurities do not need to be completed in the adsorption and desorption structure cavity through the removable adsorption and desorption structure, so that activated carbon saturated in adsorption can be taken and replaced from the adsorption and desorption structure cavity, thorough and efficient desorption is facilitated, meanwhile, the purpose of better regeneration of the activated carbon is facilitated, and the re-adsorption effect of the activated carbon is not affected.

The invention relates to a catalytic cracking catalyst with a hierarchical pore structure and a preparation method and application thereof.The catalytic cracking catalyst comprises, on the basis of the total weight of the catalytic cracking catalyst, 5-30 wt% of large-particle-size aluminum oxide, 5-40 wt% of a mesoporous material, 5-35 wt% of modified attapulgite and 20-50 wt% of a molecular sieve, 2 to 35% by weight of a binder and 0 to 20% by weight of clay; the number of particles with the average particle size of 5-30 nm in the large-particle-size aluminum oxide accounts for 80% or above of the total number of particles; the total pore volume of the catalytic cracking catalyst is 0.25 mL / g or more, the pore volume of 4-6nm pores accounts for 10-35% of the total pore volume, the pore volume of 6-20nm pores accounts for 30-60% of the total pore volume, and the pore volume of 20-100nm pores accounts for 10-30% of the total pore volume. The catalytic cracking catalyst disclosed by the invention has the advantages of good anti-wear index, low coke yield and high selectivity of low-carbon olefin and gasoline.

The invention provides a device and method for purifying zinc powder from zinc-containing dross, and belongs to the technical field of zinc dross purification. The discharging pipe is fixedly connected to the center of the top of the box body, the discharging pipe communicates with the box body, the bottom of the inner wall of the box body is fixedly connected with an anode bar through a mounting frame, and the anode bar corresponds to the discharging pipe; the rotating frame is rotationally connected to the inner wall of the box body through a first bearing, the output end of the second electric push rod retracts and pulls the second electric push rod, the second electric push rod lifts the desorption sleeve, the desorption sleeve scrapes the elemental zinc attached to the circumferential surface of the single cathode sleeve, and the elemental zinc falls into the desorption hopper to be removed; the efficient desorption of elemental zinc attached to the surface of a single cathode sleeve is achieved, the situation that spongy zinc powder is not completely desorbed is avoided, the situation that power consumption is increased when the cathode sleeve which is not completely desorbed repeatedly electrolyzes zinc is prevented, and the situation that the zinc powder desorption efficiency is seriously reduced due to repeated zinc powder desorption is also prevented.

The present invention belongs to the technical field of carbon dioxide capture, and specifically discloses a tubular parallel-current carbon dioxide absorption and desorption continuous operation system and method. It is used to solve the problems of large equipment volume, high operating cost and high energy consumption of the traditional countercurrent packed tower chemical absorption method. The operating system includes a low partial pressure carbon dioxide inlet, a carbon dioxide ejector, an absorption reactor, a first gas-liquid separator, a first heat exchanger, a second heat exchanger, a rich liquid pump, a desorption reactor, a heater, a pressure controller, a second gas-liquid separator, a third gas-liquid separator, an absorbent storage tank and a lean liquid pump. The present invention adopts continuous operation throughout the whole process, realizes the efficient recycling of carbon dioxide absorbent, effectively reduces the number of carbon capture equipment and the floor space, reduces labor costs and operation risks, improves carbon capture efficiency, and reduces the cost of transformation and maintenance of existing equipment, so as to realize parallel-current continuous operation of efficient, low-energy consumption green carbon dioxide absorption and desorption.

The invention provides a hydrophobic deep-eutectic solvent as well as a preparation method and application thereof, and belongs to the field of analytical chemistry. The hydrophobic deep-eutectic solvent is composed of a hydrogen bond acceptor and a hydrogen bond donor according to the molar ratio of 1: 1-2: 1, the hydrogen bond acceptor is selected from one of decanoic acid and lauric acid, the hydrogen bond donor is 2-hexyl-1-decanol, and the preparation method of the hydrophobic deep-eutectic solvent comprises the steps that the hydrogen bond acceptor and the hydrogen bond donor are mixed according to the molar ratio of 1: 1-2: 1 and stirred at the temperature of 90-100 DEG C, and the hydrophobic deep-eutectic solvent is obtained. The mixture is stirred until homogeneous liquid is formed, and the hydrophobic deep-eutectic solvent is obtained. According to the hydrophobic deep-eutectic solvent and the preparation method and application thereof, the problems that an existing absorbent for alkane VOCs treatment is low in absorption efficiency, poor in regeneration performance, poor in environmental protection property and insufficient in industrial adaptability can be solved.

The invention discloses an axial flow type air duct assembly and an axial flow type blower, and belongs to the field of axial flow fans. Comprising an axial flow fan outer sleeve shell, an asynchronous induction motor, an impeller fan, a heat conduction mechanism and an adsorption mechanism, air guide outer notches are fixedly formed in the sides, facing the impeller fan, of outer disc sleeve shells, a set of cylindrical sleeve shells are movably installed at the inner axis position of each outer disc sleeve shell, and the cylindrical sleeve shells are embedded in an air duct shell through adsorption units distributed circumferentially; and airflow generated by the impeller is used for driving the cylindrical sleeve shell to rotate, so that periodic switching between the adsorption cavity and the regeneration cavity is realized. And when the cavity on one side continuously adsorbs moisture and VOCs, the cavity on the other side performs desorption regeneration by virtue of waste heat of the motor. And the service life of the active material is remarkably prolonged through an adsorption regeneration cycle mechanism, the stable purification efficiency can be maintained especially in a high-temperature and high-humidity environment, and the technical problems of pore blockage and frequent replacement of the filter material in a traditional scheme are solved.