1225results about How to "Promote regeneration" patented technology

New low-cost CO₂ sorbents are provided that can be used in large-scale gas-solid processes. A new method is provided for making these sorbents that involves treating substrates with an amine and/or an ether so that the amine and/or ether comprise at least 50 wt. percent of the sorbent. The sorbent acts by capturing compounds contained in gaseous fluids via chemisorption and/or physisorption between the unit layers of the substrate's lattice where the polar amine liquids and solids and/or polar ether liquids and solids are located. The method eliminates the need for high surface area supports and polymeric materials for the preparation of CO₂ capture systems, and provides sorbents with absorption capabilities that are independent of the sorbents' surface areas. The sorbents can be regenerated by heating at temperatures in excess of 35° C.

A burner for use in the emissions system of a lean burn internal combustion engine. The burner has a special burner head that enhances atomization of the burner fuel. Its combustion chamber is designed to be submersed in the engine exhaust line so that engine exhaust flows over the outer surface of the combustion chamber, thereby providing efficient heat transfer.

The invention supplies a new type adsorbent--mixed oxide of iron and manganese / diatomite preparation, use and regeneration method, belongs to the treatment of technology. The method used the soluble ferrous permanganate and salt as raw materials, respectively prepared the solutions, after adequate lye into permanganate solution, mixed two salt solutions, by adding diatomite particles, full oscillation, standing aging, neutralize, washing and drying to get the manganese oxide / silicon algae absorbent. The adsorbent is larger than the surface area and good adsorption properties can be used to remove arsenic in water pollutants (especially tervalence arsenic), and the adsorption surface activity of the saturated absorption of pollutants can be directly passed to load manganese oxide compound to regeneration.

The invention discloses an anti-microbial healing-promoting hydrogel dressing and a preparation method therefor. The main ingredients of the dressing are water-soluble high-molecular polymers, functional polymers with pseudoplastic, anti-microbial agents and water. The above ingredients are dissolved into a whole after a series of technologies. The solution is poured into a mold, and the hydrogel dressing is obtained after curing and irradiation disinfection. The results of wound healing experiments and in vitro anti-microbial experiments show that the hydrogel dressing can promote wound healing effectively, and has good bacteriostatic activity to multiple bacteria (the sterilizing rate is above 70%). The anti-microbial healing-promoting hydrogel dressing is better than existing hydrogel dressings obviously, and has advantages of substantial anti-microbial curative effects, transparency, high water content, simple preparation method, pure product, nontoxicity, innocuousness, no stimulation, good biocompatibility and the like. The hydrogel dressing is suitable for large-area promotion and application.

The invention relates to a kieselguhr-based porous ceramics, a preparation method thereof and a method for loading Ag doped with nano TiO2 on the same, belonging to the technical field of a kieselguhr inorganic material. The kieselguhr-based porous ceramics is made from kieselguhr, a sintering auxiliary agent, a dispersing agent, a binder and water in the weight ratio of 60-92:8-40:0.01-2:0:001-1:100-450. The kieselguhr-based porous ceramics has functions of absorption and filtration, and can absorb granules in fluid when the fluid passes through the lieselguhr-based porous ceramics. Ag doped with nano TiO2 is loaded on the kieselguhr-based porous ceramics to generate kieselguhr-based porous ceramics loading the Ag doped with TiO2. The laden anatase-type nano TiO2 has large specific surface area. The effects of filtration, photochemical catalysis and sterilization of the kieselguhr-based porous ceramics loading the Ag doped with nano TiO2 are greatly increased.

The invention discloses a double-layer membranous tissue repair material and a preparation method thereof, wherein, a cell-free membranous biological derivative material is used as a surface layer, and a fibroblast is compounded in the interior of a biological support material to form a substrate, and then the surface layer and the substrate are combined in a chimeric way to form the double-layer membranous tissue repair material; a compact surface layer structure can effectively reduce the loss of water, electrolytes and protein from surface of wound, avoid the invading and the reproduction of bacteria to the impaired surface of wound as well as prevent the infection of the surface of wound, thus being beneficial to epitheliosis and epithelial growth; the substrate can directly repair the surface of wound, promote the ingrowth of cells around the surface of wound and the angiogenesis, induce the differentiation from stem cells to skin cells and quicken wound healing; compared with the existing products, the tissue repair material has the advantages of being capable of promoting the regeneration of skin, improving the elasticity, the flexibility and the mechanical abrasion resistance of skin after the surface of wound is healed, reducing hyperplasia of scar tissues, controlling the contracture, having excellent biocompatibility, increasing the success rate of transplant and improving the quality of healing; the invention has wide material resources and simple production method; the double-layer membranous tissue repair material prepared is applicable to the clinical treatment of skin defect caused by inflammation, ulcer, thermal burns, iatrogenicity and the like.

Substances, compositions and methods for hair treatment based on ultra-low molecular weight hyaluronic acid oligomers, possibly combined with trichogenic substances, useful for preventing hair loss and favouring its regrowth in subjects affected by androgenetic alopecia, alopecia areata, alopecia mucinosa and related disorders.

A MFI-molecular sieve catalyst for preparing caprolactam from cyclohexanone oxime by gas-phase Beckmann rearrangement is prepared through proportionally mixing MFI-molecular sieve with alkaline silica gel, shaping, drying and calcining. It has high conversion rate and selectivity.

The invention relates to a process for dimerizing lower, olefinic hydrocarbons. In particular, the present invention concerns a process for dimerizing C₃–, C₄ and C₅-olefins with a medium pore zeolite under process conditions allowing selective dimerization According to the invention, fresh olefinic hydrocarbon feedstock is fed to a reaction system including at least one reaction zone and at least one separation zone. The olefinic hydrocarbon feedstock is contacted with an acid catalyst at conditions in which at least a part of the olefins dimerizes. The effluent from the reaction zone is conducted to the separation zone where dimerized reaction product is separated from said effluent.

The invention relates to a method for preparing high-purity vanadium from heteropolyacid impurities in an amine extraction mode. Generally an ordinary vanadium solution is doped with impurities such as chromium, silicon, phosphorus, tungsten, molybdenum and arsenic, if acid is added into the solution, heteropolyacids such as phosphorus tungsten, phosphorus vanadium tungsten, silicon tungsten, phosphorus molybdenum tungsten, silicon molybdenum tungsten, molybdenum vanadium arsenic and tungsten arsenic can be formed, the impurities in the solution are removed by carrying out compounding synergic extraction on the heteropolyacids in the ordinary vanadium solution by using amines and a synergist so as to obtain a purified vanadium-containing raffinate, subsequently the vanadium-containing raffinate is evaporated and concentrated to be the concentration that each liter of the solution contains 40g vanadium, ammonium salt is further added into the concentrated liquid to obtain ammonium metavanadate solid, vanadium pentoxide with the purity greater than 99.9% is obtained through washing in pure water, drying and calcining in an oxygen atmosphere, the organic phase after the heteropolyacid is extracted is subjected to reverse extraction by using an alkali solution so as to form a heteropolyacid water phase, and the organic phase is recycled and circulated. The method has low requirement on equipment, and is simple to operate, key extraction agents are good in thermal stability and not sensitive in acid and alkali, and a recycling and circulating method is simple and easy to be industrialized.

The invention provides gelatin sponge, gelatin aqueous solution is irradiated to crosslink to form gelatin hydrogel, and then the gelatin hydrogel is swollen, frozen and dried to obtain the gelatin sponge. The invention also provides a preparation method of the gelatin sponge by an irradiation crosslinking way, the whole process flow is finished in a pure water system, the irradiation and crosslinking processes have sterilizing function and good controllability, the obtained product has better structural uniformity compared with a chemical crosslinking method, and the gelatin sponge has unique advantages as biomedical materials.

A filter for removing soot particles from the exhaust gas of a diesel engine comprises a plurality of hollow channels which contain therein a metal mesh. The metal mesh can be coated with an oxidation catalyst to promote ignition of the soot particles and regeneration of the metal mesh for filtering the soot particles. The metal mesh can optionally be removed from the hollow channels and replaced with regenerated or new metal mesh if desired.

The invention relates to an air purification material and a preparation method and application thereof, belonging to the technical field of chemical catalytic decomposition, in particular belonging to the technical field of decomposition of formaldehyde pollutants in environment air. The air purification material comprises a base material and manganese oxide, wherein the manganese oxide is supported on the base material, the base material is honeycomb ceramics or a fiber material with a particle filtering function, and the manganese oxide is birnessite manganese oxide prepared from permanganate and oxalate. The air purification material can effectively decompose formaldehyde pollutants in indoor air and can rapidly and constantly remove the formaldehyde pollutants in indoor air at room temperature. The air purification material can be regenerated through heating, so that the service life of the material is prolonged and the practical application is facilitated.

A system and an on-board-diagnosis method is provided for an exhaust aftertreatment system of an engine including a diesel particulate filter unit which encompasses a particulate filter in which soot can be oxidized by NO2 and constituents of the exhaust gas are deoxidized in a nitrogen-oxides reduction unit arranged downstream of the diesel particulate filter unit, wherein the exhaust gas flows from the diesel particulate filter unit to the nitrogen-oxides reduction unit. The on-board-diagnosis method includes estimating an NO2 content upstream of the nitrogen-oxides reduction unit, measuring at least one of an NOx or NO2 content upstream of the nitrogen-oxides reduction unit, performing a comparison between the estimated and the measured contents, and, based on the result of the comparison deciding on at least one conditioning step of the diesel particulate filter unit.

A process for oligomerizing olefinic, lower hydrocarbons. The process comprises the steps of feeding a fresh olefinic hydrocarbon feedstock to a reaction zone; contacting the olefinic hydrocarbons of the feedstock with an acidic catalyst in the reaction zone in order to dimerize at least a part of the olefinic hydrocarbons, withdrawing an effluent containing oligomerized olefins from the reaction zone; and conducting the effluent to a separation zone, wherein the oligomerization reaction product is separated from said effluent. According to the invention, the reaction is carried out in homogeneous phase comprising a solvent for olefinic hydrocarbons, maintained at supercritical conditions. By using supercritical carbon dioxide as a solvent deactivation rate of catalyst can be diminished. Carbon dioxide is easy to remove from the product mixture and spent reaction medium can be used for regeneration of the catalyst.

An electrical energy storage device for storing electrical energy and supplying the electrical energy to a driving motor at different power levels is disclosed. The electrical storage device has an energy battery connected to a power battery. The energy battery has a higher energy density than the power battery. However, the power battery can provide electrical power to the electrical motor at different power rates, thereby ensuring that the motor has sufficient power and current when needed. The power battery is continuously recharged by the energy storage battery. In this way, the power battery temporarily stores electrical energy received from the energy battery and provides the electrical energy at the different power rates as required by the motor. The energy storage device can be releasably connected to an external power source in order to recharge both batteries. Both batteries can be recharged independently to optimize the recharging and lifetime characteristics of the batteries.

The invention disclose a method for preparing pressed active carbon by using tobacco-stem, which comprises the following steps of: crashing the tobacco-stem to be 0.5-0.8mm, carrying out heating carbonization with the temperature-raising speed of 10 DEG C/min and under protection of nitrogen, raising the temperature to 300-400DEG C, and carrying out temperature preservation for 30-60min; mixing the tobacco-stem after carbonization with KOH evenly, raising the temperature to 400 DEG C with the temperature-raising speed of 5 DEG C/min and under the protection of nitrogen, carrying out temperature preservation for 30min, then raising the temperature to 700-800 DEG C with the temperature-raising speed of 10 DEG C/min and carrying out temperature preservation for 30-90min; washing activated samples by using clear water and obtaining powder-shaped active carbon; mixing the powder-shaped active carbon with a binder and a pore-creating activator; and carrying out press forming at pressure of 10-15 MPa, placing the mixture into a tube type resistance furnace, raising temperature to 800-850 DEG C with the temperature-raising speed of 5 DEG C/min and under the protection of nitrogen, carrying out temperature preservation for 30-60min, and obtaining the pressed active carbon after cooling.

The invention discloses a human umbilical cord mesenchymal stem cell (HUMSC) anti-hepatic fibrosis injection and a preparation method thereof. The injection is composed of 10%-50% of human albumin stock solution, 49.5%-89.5% of acetated Ringer's solution and 0.5% of heparin calcium, wherein, the concentration of the human albumin stock solution is 10%, and 1ml of the injection contains 6*10<5>-7*10<5> HUMSCs. The preparation method comprises the following steps: providing an MSC preserving fluid and pre-cooling the MSC preserving fluid for later use, wherein, the MSC preserving fluid comprises the human albumin stock solution, the Acetated Ringer's solution and the heparin calcium; providing the HUMSCs and adding the HUMSCs to the MSC preserving fluid; and adjusting the number of the HUMSCs added to the MSC preserving fluid to be 6*10<5>-7*10<5> HUMSCs/ml by means of re-suspending. The injection provided by the invention has the advantages of obvious curative effect and high stability, and is convenient in storage and transport and safe in use, thus being capable of bringing gospel to patients with hepatic fibrosis.

Various systems and method are described for controlling an engine having an exhaust system which includes a particulate filter. One example method comprises, after shutting down the engine and spinning down the engine to rest, operating a vacuum pump to draw fresh air through the exhaust system to an intake system, and regenerating at least a portion of the particulate filter during the engine rest.

The invention relates to a preparation process of a metal-organic framework porous adsorption material for C4-C8 normal paraffin and isoparaffin adsorption separation. According to the preparation method of the synthesized metal-organic framework porous adsorption material, metal ion nitrate and an organic ligand are dissolved according to the mass ratio of 1:1-15 in a mixed solution of N,N-dimethylformamide and N,N-diethyl formamide; stirring is carried out for 0.5-12 h; reaction temperature is controlled to 80-250 DEG C, and reaction time is 12-120 h; and by a hydrothermal synthesis method, the metal-organic framework porous adsorption material is prepared. The material has characteristics as follows: specific surface area is large; pore structure height is ordered; pore size is controllable; surface potential energy is controllable; and adsorption capacity of normal paraffin is large. The material can selectively adsorb normal paraffin from mixed materials of normal paraffin and isoparaffin, has high selectivity and has a wide practical application prospect in normal paraffin and isoparaffin separation.

The invention discloses a method for treating sulfur- and hydrocarbon-containing foul waste gas. The waste gas enters a heat exchanger for cooling, condensed water is separated, the cooled waste gas enters an absorption tower to be absorbed by an absorbent distillate, a fresh absorbent exchanges heat with a rich absorbent discharged by the absorption tower and then is cooled by a cooling system, and the cooled absorbent enters the absorption tower; and the waste gas subjected to absorptive purification enters an adsorption tower for adsorptive purification, the adsorption tower is segmentally filled and respectively filled with silica gel adsorbents and activated carbon adsorbents, and heat exchangers are arranged among the adsorbents in each segment. The method can thoroughly purify the sulfur- and hydrocarbon-containing foul waste gas discharged by chemical engineering storage tanks, refining devices and the like, and has the advantages of simple treatment process and no potential safety hazard.

The invention provides a catalyst used as a titanium-silicate molecular sieve in the process of preparing epoxide from olefin and hydrogen peroxide. The invention is characterized by comprising the following steps: washing with or without a small amount of methanol solvent; purging the catalyst cake with steam directly after reaction; extracting few organic matters absorbed in the catalyst; then stirring in a regenerating kettle and dropwise adding H2O2 with a certain concentration simultaneously; removing the organic matters and low polymers absorbed on the catalyst and in a pore path through oxidative decomposition; and finally, washing with a small amount of methanol or deionized water to remove the organic acid generated by oxidation on the surface of the catalyst. The regenerated catalyst can be circularly used for the epoxidation reaction of olefin to stably maintain the activity of the epoxidation reaction.

The invention discloses a nitrogen purging-assisted organic exhaust gas recycling method through the pressure swing adsorption of adsorbent resin. The organic exhaust gas recycling method comprises the following steps: (1) adsorption, namely performing adsorption when exhaust gas including volatile organic compounds (VOCs) enters an adsorber filled with the macroporous adsorption resin by a gas collection system; (2) desorption, namely vacuumizing the adsorbent resin in the adsorber and purging the adsorbent resin by using nitrogen in an auxiliary manner to desorb the adsorbed VOCs from the adsorbent resin to obtain the desorbed gas; and (3) recycling, namely condensing or absorbing the desorbed gas to recycle the VOCs. The adsorbent adopted by the method disclosed by the invention is the macroporous adsorption resin, the surface of the macroporous adsorption resin has no catalytic performance and has the characteristics of being easy to regenerate, high in mechanical strength, great in volumetric adsorption capacity and the like. A adsorption technique assisted by nitrogen purging in vacuum at normal temperature is high in adsorption efficiency and has the very excellent recycling effect on VOCs gas which can be easily oxidized and hydrolyzed or is high in solubility.

A cell or tissue-culturing carrier which can effectively regenerate an intended a cell or tissue, while suppressing an excessive growth of fibroblasts, and a method of culturing a cell or tissue by using the above carrier, the cell or tissue-culturing carrier wherein fibroblasts showing substantially no growing property in a gel based on the hydrogel-forming polymer, is constituted by using a hydrogel-forming polymer; an aqueous solution of which shows a thermo-reversible sol-gel transition such that it assumes a sol state at a lower temperature and assumes a gel state at a higher temperature.

The invention provides health-care food for beautifying and brightening hair of a dog, belonging to the field of animal health-care products. The health-care food formula comprises the following components by weight based on 1kg: 10-30g of deep sea fish oil, 10-30g of linseed oil, 5-20g of poppyseed oil, 10-30g of perilla oil, 10-30g of grape seed oil, 10-30g of lecithin, 5-20g of chelate iron, 1-10g of chelate manganese, 5-20g of chelate zinc, 1-5g of chelate copper, 0.05-0.2g of yeast selenium, 150-250g of methionine, 50-150g of lysine, 1-4g of vitamin E, 0.05-0.2g of vitamin D, 0.5-2g of vitamin A, 0.05-0.2g of vitamin B1, 0.1-0.4g of vitamin B2, 0.05-0.2g of vitamin B6, 0.05-0.4g of vitamin B12, 0.05-0.2g of biotin, 0.1-0.4g of nicotinic acid, 1-5g of bacillus, 1-5g of yeast, 120-180gof chicken liver powder, 50-80g of Rosmarinus officinalis and the balance of yeast powder. The components are made into a tablet with the specification of 0.7-0.9g according to a regular tabletting process, and the water content is less than 10%. The health-care food provided by the invention has the advantages of high titer and strong stability and is capable of improving the fur health of the dog, protecting hair follicles and hair shafts against damage, enabling the hair to be smooth and soft, reducing hair slip, promoting regeneration of furs, improving immunity comprehensively and ensuring the dog in a healthy and vital state.

The invention relates to a preparation for multiporous material, especially a process for preparing organic and inorganic hetero-material with multiporous structure and application thereof. The hetero-material is a transition metal phosphonate with different organic phosphonic acid groups combined on the surface and skeleton of mesoporous and macroporous structure, wherein, the weight percent of the organic phosphonic acid P is 1% to 17%, and the transition metals can be selected from Ti salt, Al salt, Zr salt, etc. The hetero-material is directly synthesized by hydrothermal synthesis and can be used for heavy metal ion absorption with good absorption effect, the invention is provided with simple equipments and moderate synthesis conditions, and the raw materials is available, accordingly, the multiporous material preparing process is suitable for large-scale production.

A vegetable oil-type asphalt recycling agent is composed of component A and component B, wherein the component A is one or two selected from asphalt and residual oil; and component B is a composition of vegetable oil and an alcohol, a composition of vegetable oil and a thermoplastic elastomer, or vegetable oil or vegetable oil prepolymer; and based on the total weight of the asphalt recycling agent, the content of component A is 40-95 % by mass, and the content of component B is 5-60% by mass. The present invention also discloses a method for preparing the vegetable oil-type asphalt recycling agent.

A verification device (110) for verifying the identity of an article (114) is disclosed. The verification device (110) comprises: at least one illumination source (116) for illuminating at least one safety mark (124) of the article (114) with at least one light beam (122); at least one detector (118) adapted for detecting after an interaction of the light beam (122) with the safety mark (124), the detector (118) having at least one optical sensor (128), wherein the optical sensor (128) has at least one sensor region (130), wherein the optical sensor (128) is designed to generate at least one sensor signal in a manner dependent on an illumination of the sensor region (130) by the light beam (122), wherein the sensor signal, given the same total power of the illumination, is dependent on a beam cross-section of the light beam (122) in the sensor region (130); and at least one evaluation device (120) adapted for evaluating the sensor signal and for verifying the identity of the article (114) on the basis of the sensor signal. Further, a verification system (112), a method for verifying the identity of an article (114) and a use of an optical sensor (128) for verifying the identity of an article (114) are disclosed.

The invention relates to a preparation method of J acid and a J acid waste water comprehensive treatment and recycling method. The J acid waste water comprehensive treatment and recycling method is as follows: the following treatment is carried out on hydrolysis waste water: (1) 30-40% of the total quantity of the hydrolysis waste water is used in an acidification reaction for preparing 2-naphthylamine-1-sulphonic acid by utilizing sodium 2-naphthylamine-1-sulphonate; (2) extraction and reextraction are carried out on the residual hydrolysis waste water, so that Na2SO4 and extraction waste liquor are obtained, the extraction waste liquor is used in a hydrolysis working procedure in a J acid production process, an extraction agent adopted during extraction is composed of 10-30wt% of complex agent, 30-70wt% of diluent and 5-20wt% of tributyl phosphate, and the complex agent is trioctylamine, or trialkyl tertiary amine or combination of trioctylamine and trialkyl tertiary amine. By adopting the preparation method of the J acid, the cost of water for the J acid and waste water treatment cost can be greatly reduced, and environmental pollution can be reduced.

The invention discloses a preparation method of a fibroin and graphene oxide composite bracket material. The preparation method comprises the steps of: performing dissolution, filtration, dialysis and centrifugation on degumming fibrous fibroin in sequence, and then condensing to obtain a silk fibroin aqueous solution; dispersing graphene oxide aqueous solution ultrasonically; filtering in a vacuum manner to remove impurities; mixing the graphene oxide aqueous solution with the silk fibroin solution; mixing uniformly; oscillating at the presence of ultrasonic waves for mutual crosslinking; then centrifuging to obtain a mixed solution; then preparing by adopting a freeze-drying method so as to obtain the porous fibroin and graphene oxide composite bracket material. The high-concentration fibroin and the graphene oxide blended aqueous solution has good mixing property, the obtained composite bracket material is excellent in air permeability and drug-carrying ability, is good in hygroscopic property and waste liquid removal effect, and has wide application foreground.