12results about How to "Improve the desorption effect" patented technology

The application discloses a system and method for treating high-concentration cyclohexane oxidation tail gas. The system comprises an adsorption / desorption module and an absorption / desorption module, and can directly treat high-concentration cyclohexane oxidation tail gas while meeting the gas emission requirements. The system has the advantages of short overall process, high cyclohexane recovery rate, reasonable energy utilization, low energy consumption and the like.

The application discloses a preparation method of an antibiotic selective adsorbent, first, C-BN nanosheet balls are prepared by a simple catalytic thermal evaporation method; second, the C-BN nanosheet balls are used as a main body to limit and load magnetic Fe3O4 nanoparticles; and then mesoporous SiO2 and imprinted polymers are coated on the surface of the C-BN nanosheet balls in sequence, and the tetracycline antibiotic selective adsorbent is obtained after template molecules are eluted. The tetracycline antibiotic selective composite adsorbent with high adsorption capacity is prepared, the high specific surface area of the carrier material and the enrichment antibiotic capacity of the radial structure and the selectivity of the surface molecular imprinting material are fully utilized, the selective adsorption of specific antibiotics in a complex solution is effectively realized, and the adsorption efficiency is effectively improved. The carbon-doped BN and the limited loading magnetic particles enhance the adsorption capacity, and the adsorbent can be quickly recovered and separated under an external magnetic field. Meanwhile, the SiO2 layer and the imprinted polymers enable the antibiotics to be quickly desorbed, and the cycle number is more, so that the antibiotic selective adsorbent has application prospects in the fields of sewage treatment and food antibiotic detection.

The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for nylon waste granulation, which comprises a gas heat exchanger, a cyclone separator, a treatment box, a combustion box and a matched pipeline system. Gas subjected to back flushing desorption is treated by a pipeline heater and a catalytic assembly and then enters a combustion box to be subjected to high-temperature decomposition, a jacket heating system is arranged outside the combustion box, and high temperature is maintained through heat conduction oil circulation. And combusted gas is collected after being cooled by the gas-liquid heat exchanger. Through the arrangement of the catalytic pipeline and the transfer bottle which are connected in parallel, continuous operation of the device is guaranteed, waste heat of part of the device is recycled through the gas heat exchanger and the gas-liquid heat exchanger, the solar panel and the storage battery pack are additionally arranged in the device to supply heat to part of the device, and energy consumption of the device in the using process is reduced.

The application provides an adsorbing material and a preparation method and application thereof. The adsorbing material comprises activated carbon and an additive material; the specific heat capacity and the thermal conductivity of the additive material are not lower than those of the activated carbon; the additive material comprises one-dimensional fiber material and / or two-dimensional layered material; and the mass ratio of the activated carbon to the additive material is 100:(0.1-10). The additive material in the adsorbing material provided by the application can form a thermal conduction path and a uniform heat storage / heat release network, and the activated carbon is surrounded in the network, so that the desorption performance to oil and gas is enhanced, the residual amount is reduced, and the mechanical performance of the material is improved without affecting the adsorption performance of the activated carbon.

This invention discloses a supersubcritical hydrothermal desorption device and method for treating oily sludge. The device includes a main body, with its top and bottom sealed by an upper and lower end cover, respectively. Inside is a desorption chamber equipped with a guide plate. Its side walls are provided with a primary preheating water inlet, a desorption product outlet, a slag discharge port, and a temperature detection device, all communicating with the desorption chamber. An oily sludge inlet is located on the upper end cover, and a secondary preheating water inlet is located on the lower end cover. This device is compact, easy to operate and maintain, and can effectively achieve the desorption of oily sludge from supersubcritical water flowing against the temperature gradient, as well as the desorption of petroleum components as the temperature gradually increases. This achieves the goals of resource recovery, harmless treatment, and volume reduction of the oily sludge.

This disclosure provides a waste gas treatment device for PCB photosensitive dry film production, belonging to the technical field of waste gas treatment devices. It includes: an inner cylinder with an outer cylinder rotatably fitted around its outer periphery; a plurality of sieve holes are evenly spaced on the outer peripheral wall of the inner cylinder; two sealing rings are slidably fitted onto the outer peripheral wall via an annular groove, symmetrically positioned at both ends of the sieve holes; and the outer peripheral wall of the sealing rings contacts the inner wall of the outer cylinder. An air inlet mechanism is located at one end of the outer cylinder and is used to introduce waste gas into the inner cylinder. During the adsorption of organic waste gas by activated carbon, the inner cylinder rotates within the outer cylinder, continuously agitating the activated carbon particles within it. This prevents some activated carbon from constantly contacting a high concentration of organic waste gas, thus avoiding rapid saturation of some activated carbon, reducing the desorption frequency of the activated carbon, and improving the waste gas treatment efficiency of the device.

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 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 invention provides a hydroxysafflor yellow A as well as a purification method and application thereof, and relates to the technical field of extraction of plant active ingredients. According to the purification method, an ethanol aqueous solution containing citric acid is introduced as an eluent of a polyamide column, so that the desorption performance of the hydroxysafflor yellow A is remarkably improved, and the purity of the hydroxysafflor yellow A is improved. The hydroxysafflor yellow A purified by the method disclosed by the invention has relatively high purity. Compared with a traditional process, the method has the advantages that the separation efficiency and the purity of the purified hydroxysafflor yellow A are greatly improved, the requirements on equipment and environment are reduced, and the method is particularly suitable for large-scale industrial production.

This invention discloses a non-metallic electrolytic cell with a bipolar integrated magnetic yoke, which has a two-cell electrolytic structure. The core includes an anode plate, a cathode plate, and an electrolytic bipolar plate between them. Gaskets and diaphragms are provided between the end plates and the bipolar plates. Each electrode plate consists of a non-metallic frame, a magnetic yoke current collector, and nickel foam, and has an electrolyte flow channel connecting the electrolytic cells. The anode cell of the anode plate and the cathode cell of the bipolar plate, and the cathode cell of the cathode plate and the anode cell of the bipolar plate, respectively constitute complete electrolytic cells. This invention constructs a matching magnetic yoke structure within the electrode plates, combined with a square permanent magnet to generate a magnetic field covering the entire electrolytic cell and perpendicular to the current direction. The Lorentz force drives electrolyte flow and bubble movement on the electrode surface, efficiently desorbing bubbles and enhancing mass transfer efficiency and electrolytic reaction rate. The number of bipolar plates can be increased as needed, forming a multi-cell structure by stacking the bipolar plates and end plates in parallel, with each cell exhibiting a consistent reaction process.

The invention provides a bimetallic composite catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: smelting flue gas is subjected to plasma strengthening and then is in contact with the bimetallic composite catalyst; the smelting flue gas contains chlorobenzene and / or dioxin; under the condition that the smelting flue gas contains chlorobenzene, the concentration of the chlorobenzene in the smelting flue gas is 50-500ppm; under the condition that the smelting flue gas contains the dioxin, the concentration of the dioxin in the smelting flue gas is not higher than 20 ng TEQ / m < 3 >. The technical problems that in the common technology, the degradation efficiency of CVOCs such as chlorobenzene is insufficient, and synchronous and efficient degradation of chlorobenzene and dioxin is difficult to achieve at the same time are solved, efficient mineralization of chlorobenzene is achieved through multi-path coupling, and meanwhile efficient adsorption and deep degradation of dioxin are synchronously achieved.

The invention discloses a carbon capture device and method, which are used for integrating CO2 absorption and desorption processes of carbon capture in the same device, the device at least comprises: an absorption unit arranged at the upper part of the device; in the absorption unit, the absorption slurry is in contact with carbon-containing gas from top to bottom so as to carry out gas-liquid mass transfer under a high-pressure condition; the solid phase part of the absorption slurry is powder of a supported ionic liquid, and the ionic liquid is an amino-containing ionic liquid; the desorption unit is arranged below the absorption unit and is isolated by a liquid seal; under the vacuum condition, the absorbed slurry is subjected to CO2 desorption in a desorption unit, the desorbed slurry is recycled after being subjected to gas-liquid separation, and CO2 is discharged. According to the invention, the gas-liquid mass transfer efficiency can be effectively improved and the absorption rate of CO2 can be increased through the nano-micro interface strengthening effect; absorption and desorption are integrated into the whole device, different areas are isolated in a liquid sealing mode, and the functions of high-pressure absorption and vacuum desorption can be achieved in the same device.