10results about How to "Guaranteed regeneration effect" patented technology

The invention provides a seawater uranium extraction material elution and regeneration device, which comprises an elution and regeneration tank, an eluent collection flow path and a regeneration liquid collection flow path, the elution and regeneration tank is internally provided with at least two spacer regions, the adjacent spacer regions are communicated with each other, and fiber materials after uranium adsorption are separately placed in the spacer regions at intervals; the inlet end and the outlet end of the eluent collecting flow path are respectively connected with the elution regeneration tank, and at least two parallel eluent collecting tanks are arranged on the eluent collecting flow path so as to collect eluents with different concentrations flowing through the spacer region; the inlet end and the outlet end of the regenerated liquid collecting flow path are respectively connected with the elution regeneration tank, at least two regenerated liquid collecting tanks which are connected in parallel are arranged on the regenerated liquid collecting flow path, and the regenerated liquid collecting tanks are used for collecting regenerated liquid which flows through the spacer region and has different concentrations, so that the regenerated liquid is treated and discharged or returned to the elution regeneration tank for recycling. The seawater uranium extraction material elution and regeneration device can reduce the discharge of eluent and regeneration liquid, and improves the environmental friendliness.

The utility model relates to the technical field of water treatment, in particular to a structure capable of automatically adjusting dosing concentration for regeneration of a condensate polishing mixed bed. The structure comprises a tap water conveying pipeline, a compressed air conveying pipeline, an automatic dosing system, a mixed bed body and a mixed ion exchanger, the automatic dosing system comprises an anion resin regeneration ejector, an anion resin adjusting pipeline, a cation resin regeneration ejector and a cation resin adjusting pipeline, a regenerated water inlet branch pipe adopts raw water as a regeneration medium, and a backwashing pipeline and a cation resin conveying pipeline are shared, so that the construction cost is saved; on the basis of an anion resin regeneration ejector and a cation resin regeneration ejector, an anion resin adjusting pipeline and a cation resin adjusting pipeline are additionally arranged, it is guaranteed that liquid medicine at the suction end is sufficient, and the maximum supply flow is larger than the flow needed by the target concentration, by means of the technical scheme, the regeneration quality of a mixed bed body can be improved, and the purpose of saving water is achieved; the water production cost per ton of the mixed bed body is reduced.

This invention relates to the field of hydrogen peroxide technology and discloses a system and method for preparing hydrogen peroxide. The system includes a hydrogenation unit, an oxidation unit, and an extraction unit connected in sequence. The hydrogenation unit includes a fixed-bed reactor, comprising: a reactor body; a liquid phase inlet, N gas phase inlets, a liquid phase outlet, and a gas phase outlet arranged sequentially from bottom to top on the reactor body; and N catalyst bed sections and a gas-liquid separation component arranged sequentially from bottom to top within the reactor body; N is a natural number and N≥2; a gas distributor is provided below each catalyst bed section and is connected to the gas phase inlet; the gas-liquid separation component is divided into a two-phase zone, a liquid phase zone, and a gas phase zone; the liquid phase zone has a liquid phase outlet; and the gas phase zone has a gas phase outlet. Using this system to prepare hydrogen peroxide can significantly improve hydrogenation efficiency and hydrogenation selectivity, has good safety, effectively improves the selectivity of the hydrogenation reaction and the efficiency of the device, and extends the service life of the catalyst.

This invention relates to a marine exhaust gas treatment system, specifically a shipboard biphase absorbent carbon capture system based on a centrifugal phase-coalescing-heat exchanger integrated unit. This invention proposes a highly efficient and low-energy-consumption shipboard carbon capture system based on a centrifugal phase-coalescing-heat exchanger. This technology combines a centrifugal phase separator, a heat exchanger, and a coalescer. The lean and rich liquids flowing from the bottom of the absorber tower undergo heat exchange and centrifugal phase separation in the integrated centrifugal phase-coalescing-heat exchanger. This technology not only reduces the need for reheating, temperature rise, and centrifugal separation after the phase separator, effectively solving the problem of low phase separation efficiency caused by ship rolling, but also effectively reduces equipment size and floor space by combining the phase separator and centrifugal heat exchanger.

The invention provides a sodium pyrophosphate system for coupled adsorbent regeneration, the sodium pyrophosphate system for coupled adsorbent regeneration comprises a regeneration assembly, a first heat exchange assembly, a drying assembly and a stock bin assembly, the regeneration assembly comprises a regeneration tower and a heating assembly, the regeneration tower comprises a preheating section, a heating section and a cooling section, the heating assembly is connected with the heating section, and the drying assembly is connected with the stock bin assembly. A hot side inlet of the first heat exchange assembly is used for introducing steam, the first heat exchange assembly is connected with the heating assembly so that heat exchange can be conducted between a heating medium in the heating assembly and the steam in the first heat exchange assembly, the drying assembly comprises a drying piece and a second heat exchange assembly, and a cold side inlet of the second heat exchange assembly is connected with the drying piece. And a hot side inlet of the second heat exchange assembly is connected with a hot side outlet of the first heat exchange assembly, so that in the second heat exchange assembly, steam subjected to heat exchange exchanges heat with drying gas, and a drying medium subjected to heat exchange is introduced into the drying piece. The sodium pyrophosphate system for coupling adsorbent regeneration has the advantages of high energy utilization rate and high production benefit.

This invention discloses a PTC regeneration bypass control method for window-type oxygen-enriched membrane fresh air systems, belonging to the field of air handling equipment control technology. The method includes: real-time monitoring of the oxygen-enriched membrane component performance degradation rate, dew point of the drying unit, indoor carbon dioxide concentration, and indoor-outdoor temperature difference; comprehensively determining the oxygen-enriched membrane performance degradation and the drying unit regeneration needs, and calculating and selecting the optimal time point with the least impact on the indoor environment to initiate regeneration, taking into account indoor air quality and heat load conditions; first switching to bypass ventilation mode to maintain basic air exchange, while simultaneously regenerating the drying unit and independently expelling moisture outdoors; and smoothly switching back to the original operating mode after regeneration is complete. This method solves the problems of improper regeneration timing, impact on indoor ventilation and comfort during regeneration, and high regeneration energy consumption in existing technologies, achieving efficient, energy-saving, and intelligent regeneration and maintenance of core consumables while ensuring continuous indoor air quality.

The invention provides a fibrous seawater uranium extraction material elution and regeneration device, which comprises an elution and regeneration tank, an eluent collection flow path and a regeneration liquid collection flow path, the top of the elution and regeneration tank is provided with a material suspension bracket, fiber materials after uranium adsorption are respectively suspended on the material suspension bracket at intervals in a single strand manner, and the height of the material suspension bracket is adjustable; the inlet end and the outlet end of the eluent collecting flow path are respectively connected with the elution regeneration tank, and the eluent collecting flow path is provided with at least two eluent collecting tanks which are connected in parallel so as to collect eluents with different concentrations; the inlet end and the outlet end of the regenerated liquid collecting flow path are respectively connected with the elution regeneration tank, the regenerated liquid collecting flow path is provided with at least two regenerated liquid collecting tanks which are connected in parallel, and the regenerated liquid collecting tanks are used for collecting regenerated liquid with different concentrations so as to treat and discharge the regenerated liquid or return the regenerated liquid to the elution regeneration tank for recycling. According to the fibrous seawater uranium extraction material elution and regeneration device, the discharge of eluent and regeneration liquid can be reduced, and the environmental friendliness is improved.

The present invention discloses a spherical sodium zirconium phosphate powder, a preparation method and application thereof, and belongs to the technical field of dialysis materials. The preparation process of the sodium zirconium phosphate powder of the present invention comprises: + Zirconium phosphate synthesis, secondary H + The steps of synthesizing the sodium zirconium phosphate, washing, preparing the slurry, adding sodium reaction and structural stabilization reaction, adjusting the pH value, washing twice, drying and structural strengthening, screening and the like are included. The sodium zirconium phosphate powder prepared by the present invention is spherical in shape, has the characteristics of narrow particle size distribution range, high cation exchange capacity, recyclability, low Hausner ratio, low free phosphorus precipitation value, low zirconium element precipitation value, and excellent biochemical properties. The cation exchange capacity of the sodium zirconium phosphate powder is improved by more than 30% compared with the layered α zirconium phosphate materials in the prior art, and can be reused for more than 15 times, and the regeneration method is simple, so it has broad application value and prospects in the fields of hemodialysis and the like.

The application discloses a kind of FCC catalyst low carbon regeneration methods, which comprises the following steps: to be deactivated FCC catalyst is carried out vibration sieve pretreatment and removes dust impurities;The catalyst to be regenerated is sent into low-temperature regeneration reactor, control regeneration temperature is in preset low-temperature range, while mixed gas of carbon dioxide and oxygen is imported to carry out catalytic regeneration;Flue gas is carried out pressure swing adsorption separation and purification, and separated carbon dioxide is recycled into regeneration reactor;The activity index of catalyst after regeneration is monitored, and after reaching threshold, it is sent out and recycled.The application significantly reduces the energy consumption of regeneration process by using low-temperature regeneration technology, significantly reduces the emission by recycling and reusing carbon dioxide through flue gas recycling regeneration, further improves energy utilization efficiency through waste heat recovery system, realizes the dual goal of low energy consumption and low carbon dioxide emission, and provides technical support for green and low-carbon development of oil refining industry.

The invention relates to a continuous gas separation and adsorption system and method, and the system is characterized in that an adsorption tower adopts an adsorption bed to adsorb impurities in raw material gas to generate purified gas, the temperature in the adsorption tower is less than or equal to a preset temperature threshold value, a first conveying device conveys a saturated adsorbent in the adsorption bed to a regeneration device, and a second conveying device conveys the saturated adsorbent in the adsorption bed to the regeneration device; the regeneration device is arranged outside the adsorption tower and used for carrying out regeneration treatment on the saturated adsorbent to obtain a regenerated adsorbent, the second conveying device returns the regenerated adsorbent to the adsorption bed, only one adsorption tower is needed, regeneration of the saturated adsorbent is achieved through the regeneration device arranged outside the adsorption tower, and the regenerated adsorbent is returned to the adsorption tower. According to the invention, dynamic cyclic utilization of the adsorbent is realized, switching between an adsorption tower and a regeneration tower is not needed, the downtime is reduced, the regeneration effect of the adsorbent is ensured, the investment construction cost and the operation cost of a gas adsorption system are reduced, continuous adsorption of raw material gas and continuous regeneration of the adsorbent are realized, and the working efficiency is improved.