152 results about "Organic liquids" patented technology

The invention discloses a green synthesis ammonia and organic liquid hydrogen storage combined device. The device comprises a water electrolysis hydrogen production device, a nitrogen production device, an organic liquid hydrogen storage device, a low-pressure gas compressor, a synthesis gas compressor and an ammonia synthesis device, the water electrolysis hydrogen production device produces hydrogen and conveys the hydrogen to the organic liquid hydrogen storage device and the synthesis gas compressor; the nitrogen making device is used for making nitrogen and conveying nitrogen to the organic liquid hydrogen storage device and the synthesis gas compressor; the organic liquid hydrogen storage device reacts hydrogen-poor organic liquid with hydrogen generated by the water electrolysis hydrogen production device to generate hydrogen-rich organic liquid, nitrogen is introduced into the hydrogen-rich organic liquid for dehydrogenation reaction, and the hydrogen and the nitrogen are input into the low-pressure gas compressor; the low-pressure gas compressor and the synthesis gas compressor compress hydrogen and nitrogen and input the compressed hydrogen and nitrogen into the ammonia synthesis device; and the ammonia synthesis device generates ammonia under the action of the catalyst. The gas-liquid mass transfer efficiency and the hydrogen desorption rate are improved, the energy consumption and the operation and maintenance cost of the compressor are reduced, and accurate adjustment of the hydrogen-nitrogen ratio is achieved.

The invention relates to a method for producing cationic starch having a degree of substitution of at least 0.2. The method comprises providing a process mixture comprising starch dispersed in a liquid process medium comprising water and an organic liquid, and interacting the starch with a cationizing agent in a cationizing step. Thereafter, the process mixture comprises a cationic starch dispersed in a liquid process medium, the liquid process medium comprising the reaction by-products formed. The cationic starch is separated from the liquid process medium in a separation step. In a distillation step, the liquid process medium is separated into an organic liquid phase and an aqueous phase, wherein the aqueous phase comprises reaction byproducts. The organic liquid phase is recycled back to any process step in which the organic liquid is present.

A method of removing hydrogen sulfide from a subterranean geological formation includes mixing a zinc-imidazolate material, ZIF-8, in an amount of 0.1 to 2.5 percent by weight with an organic liquid containing one or more unsaturated oils to form a drilling fluid suspension with a pH of 10 or more. The method includes injecting the drilling fluid suspension in the subterranean geological formation, circulating the drilling fluid suspension in the subterranean geological formation to form an oil-based mud, and scavenging hydrogen sulfide from the subterranean geological formation.

The invention discloses a slurry hydrogen storage fuel cell system, which comprises: a hydrogen storage slurry circulation module for storing and circulating a slurry hydrogen storage material; the slurry hydrogen storage material comprises organic liquid and metal hydride; the fuel cell adopts a liquid metal anode; the fuel cell comprises an anode inlet and an anode outlet; a separator for separating the anode discharge; the metal hydride powder feeder is used for supplementing metal hydride powder to the hydrogen storage slurry circulating module; wherein the slurry hydrogen storage material reacts on a liquid metal anode interface to generate electric energy and form organic liquid vapor; and the organic liquid vapor is discharged into the separator from the anode outlet, is separated, is conveyed into the hydrogen storage slurry circulating module, and is mixed with the metal hydride powder from the metal hydride powder feeder to form a slurry hydrogen storage material. According to the invention, direct power generation of the slurry hydrogen storage material on the fuel cell anode interface is realized, and the power density of the system is greatly improved.

The invention belongs to the technical field of organic liquid hydrogen storage, and discloses a catalyst and a preparation method thereof, and hydrogenation and dehydrogenation methods of a liquid organic hydrogen carrier. The catalyst is used for hydrogenation and dehydrogenation of a liquid organic hydrogen carrier, the catalyst comprises a nickel element and an aluminum element, and the average particle size of the catalyst is 300-900 [mu] m. The catalyst provided by the invention has relatively high hydrogenation and dehydrogenation activity and long-period stability, meanwhile, the preparation cost of the catalyst is greatly reduced compared with that of a traditional noble metal catalyst, and further commercial application of an organic liquid hydrogen storage technology is facilitated.

The utility model provides a reaction tube cleaning device, and belongs to the technical field of hydrogen energy storage device cleaning. The reaction tube cleaning device comprises: a heating tank for accommodating and heating a reaction tube; the brush is used for cleaning the inner wall of the reaction tube; the cleaning liquid storage tank is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both communicated with the heating tank; the hydraulic machine is arranged between the liquid inlet and the reaction tube. According to the reaction tube cleaning device, the reaction tube is arranged in the heating tank, and the cleaning liquid pressurized by the hydraulic machine is conveyed into the heating tank through the cleaning liquid storage tank, so that the reaction tube can be cleaned by the cleaning liquid under a certain heating condition and certain pressure, and meanwhile, the inner wall of the reaction tube is cleaned by the brush, so that the reaction tube can be fully cleaned; and the device is suitable for small reaction tubes with various specifications in an organic liquid hydrogen storage system.

The invention relates to the field of impurity separation, and discloses a method for separating impurities in a liquid phase and application, the method comprises the following steps: (1) contacting a liquid-phase raw material with an adsorbent for adsorption to obtain a liquid-phase material flow; the liquid-phase raw material comprises an organic liquid hydrogen storage substance and impurities; the adsorbent preferentially adsorbs impurities in the liquid-phase raw material; (2) carrying out back-flushing desorption on the adsorbent by using part of the liquid-phase material flow to obtain a desorption solution; based on the total mass of the desorption solution, the impurity content in the desorption solution is 2-5%; (3) feeding the desorption liquid into a rectifying tower, carrying out rectification separation, and outputting the obtained tower bottom distillate and the residual part of liquid phase material flow as products; and (4) regenerating the adsorbent after backwashing desorption. The method has the characteristics of high purity of the organic liquid hydrogen storage substance, low cost and no introduction of new impurities.

A method of removing hydrogen sulfide from a subterranean geological formation includes mixing a zinc-imidazolate material, ZIF-8, in an amount of 0.1 to 2.5 percent by weight with an organic liquid containing one or more unsaturated oils to form a drilling fluid suspension with a pH of 10 or more. The method includes injecting the drilling fluid suspension in the subterranean geological formation, circulating the drilling fluid suspension in the subterranean geological formation to form an oil-based mud, and scavenging hydrogen sulfide from the subterranean geological formation.

This invention relates to an aqueous polyurethane composition comprising: a liquid medium comprising at least one organic liquid having a solubility in water of ≥4 g organic liquid / 100 g water at 25°C, and water; at least one polyurethane polymer compound dispersed in the liquid medium; and optionally at least one coating formulation component. The polyurethane composition further comprises at least one thickener comprising at least one anionic polymer selected from anionic polyacrylamide, anionic polymethacrylamide, anionic polyacrylamide-polymethacrylamide, and / or a mixture of at least two thereof, and optionally, 0 to 0.12% by weight, preferably 0 to 0.05% by weight, more preferably 0 to 0.01% by weight, based on 100% of the total weight of the aqueous polyurethane composition, at least one compound selected from unbound or ionicly bound organic amines, ammonia, or a mixture of at least two thereof, wherein the aqueous polyurethane composition has a pH value ≤ 8.5, and wherein the at least one thickener is different from the at least one coating formulation component and the at least one polyurethane polymer. The present invention further relates to a kit-of-parts for preparing a waterborne polyurethane composition, a method for preparing a waterborne polyurethane composition, and the use of the waterborne composition.

This invention relates to the field of fertilizer technology, specifically to an organic liquid fertilizer based on straw enzymatic hydrolysate and its preparation method. The method includes: pretreating corn straw with potassium hydroxide, followed by enzymatic hydrolysis with cellulase and xylanase to obtain the enzymatic supernatant; sequentially treating the supernatant with an ultrafiltration membrane with a molecular weight cutoff of 3000 Da and a nanofiltration membrane with a molecular weight cutoff of 500 Da to collect oligosaccharides with a molecular weight window of 500-3000 Da; partially stabilizing the reducing end of the oligosaccharides with sodium borohydride; pre-complexing with boric acid at pH 8.4-8.8; then sequentially adding relatively low molecular weight sodium polyglutamate, calcium chloride dihydrate aqueous solution, and ultra-high molecular weight sodium polyglutamate to construct a sequential complexation system; subsequently adding potassium nitrate and citric acid aqueous solution; and finally, after filtration at 5 μm and heat treatment at 70℃, obtaining the organic liquid fertilizer. This fertilizer has a high proportion of 500-3000 Da oligosaccharides and a low reducing sugar equivalent, inhibiting storage precipitation and browning, and improving the retention rate of extractable oligosaccharides in the soil.

The present invention discloses a method for preparing a bimetallic catalyst for an organic liquid hydrogen storage process. The method comprises the following steps: mixing a nickel salt, a cobalt salt, ethylenediaminetetramethylenephosphonic acid, alanine, and a certain amount of deionized water to obtain a uniform composite active metal precursor impregnation solution; mixing the solution with pseudo-boehmite powder, ethylene glycol, hydrazine hydrate, and a dispersant and ultrasonically dispersing the solution to obtain a suspended fluid; then reducing the active metal component, adding a binder to the obtained semi-dry and semi-wet material, kneading the mixture, and extruding it into strips. Finally, drying the mixture to remove moisture and impurities, thereby obtaining a supported non-precious bimetallic cobalt-nickel hydrogenation catalyst for use in an organic liquid hydrogen storage process. The present invention obtains a supported non-precious bimetallic cobalt-nickel catalyst by adopting a suitable preparation method, which not only improves the activity of non-precious monometallic catalysts in the organic liquid hydrogenation process, but also avoids the high cost problem faced by using precious metal catalysts.

The invention belongs to the technical field of clean energy smelting, and particularly relates to an organic liquid hydrogen storage and fuel cell integrated system and method for hydrogen energy steelmaking. Comprising a solid oxide fuel cell module, an organic liquid hydrogen storage module and a hydrogen energy steelmaking module, high-temperature heat energy and electric energy generated by the solid oxide fuel cell module are transmitted to the hydrogen energy steelmaking module, and medium and low-temperature heat energy generated by the solid oxide fuel cell module is transmitted to the organic liquid hydrogen storage module; the organic liquid hydrogen storage module supplies hydrogen to the solid oxide fuel cell module and the hydrogen energy steelmaking module; a solid oxide fuel cell is adopted and is matched with organic liquid for hydrogen storage, so that efficient and stable hydrogen storage, heat supply and power supply integrated service is provided for hydrogen energy steelmaking; the organic liquid is used for storing hydrogen, so that a stable hydrogen storage service can be provided for hydrogen energy steelmaking, and a hydrogen storage service can also be provided for a solid oxide fuel cell.

The present invention discloses a LOHC fuel cell power generation device, which releases hydrogen from an organic liquid material for hydrogen storage under the action of a catalyst and supplies it to the fuel cell for power generation. It includes an independent fuel cell chamber and a hydrogen storage and release chamber. A heat exchange structure is provided in the fuel cell chamber, and the heat exchange structure exchanges heat by contacting the liquid in the fuel cell chamber. A heat conduction structure is provided on the heat exchange structure, and the heat conduction structure penetrates out of the fuel cell chamber and inserts into the hydrogen storage and release chamber, and its end forms an enlarged end in the hydrogen storage and release chamber, and exchanges heat by contacting the liquid in the hydrogen storage and release chamber through the enlarged end. Different from the prior art, the present invention does not adopt the method of heat transfer by working fluid circulation, but directly uses a heat conduction structure for contact heat dissipation, and integrally sets the fuel cell chamber and the hydrogen storage and release chamber, thereby improving its integrity and reducing the problem of low heat transfer efficiency caused by too large a distance.

The present invention relates to the field of sanitary devices and in particular it relates to a disposable absorbent mat. usable in general to protect any surface which may come into contact with urine or other type of organic liquid. Said disposable absorbent mat (100) comprises: a liquid absorbing pad (1) having a predefined length and width delimiting an effective area (23); a sheet of liquid-impermeable material (2), coupled laid under said absorbent pad (1), so as to define a first (21) and a second (22) pair of opposite free edges. arranged outside the effective area (23) occupied by said absorbent pad (1); a sheet of liquid-permeable material (3), coupled superimposed on said absorbent pad (1) on the opposite side with respect to said sheet of liquid-impermeable material (2); first lateral closing means of said absorbent pad (1) against the leakage of liquids. Said absorbent mat (100) comprises a first (4) and a second (5) strip of liquid-impermeable material to define second lateral closing means of said absorbent pad (1) against the leakage of liquids, arranged orthogonally with respect to said first lateral closing means. The invention also relates to a process for manufacturing said disposable absorbent mat.

Provided is a medical adhesive comprising: a water-dispersible acrylic polymer obtained by polymerization of an alkyl (meth)acrylate; and an organic liquid component having a molecular weight of 1,500-7,000 and a hydrophobic ratio of 38-75%.

The application discloses a kind of based on nano microcrystalline metal powder and organic liquid hydride multi-medium composite slurry hydrogen storage material and its preparation method, and multi-medium composite slurry hydrogen storage material includes nano microcrystalline metal powder for hydrolysis heat production, hydrogen release endothermic organic liquid hydride and catalyst;Nano microcrystalline metal powder content is 1~40wt.%, and organic liquid hydride content is 50~95wt.%, and the content of catalyst is 1~25wt.%.The application combines the advantages of metal powder and organic liquid hydride, by covering metal powder in organic liquid hydride, on the one hand, the passivation problem of metal powder surface is solved, effectively isolates metal powder and air contact, prevents the formation of oxide;On the other hand, the heat generated by the reaction of metal and water is absorbed by organic liquid hydride, thereby improving the mass transfer efficiency, and reducing the energy loss in heat transfer process.

The utility model belongs to the technical field of coking technologies, particularly relates to a barrel conveying device with a protection function, and aims to solve the problems of high danger coefficient and long contact time with air in the background technology, the barrel conveying device comprises a nitrogen pipeline, and a control valve is mounted on the outer wall of the nitrogen pipeline. The nitrogen pipeline is fixedly connected with a water seal insertion pipe through a three-way pipe, and a protection water seal is inserted into the outer wall of the water seal insertion pipe. The nitrogen gas is used as driving gas, the pressure of the nitrogen gas is controlled not to exceed the maximum pressure by the water seal, the organic liquid is conveyed in an anaerobic atmosphere, the device has the characteristics of simplicity, safety and reliability, the nitrogen gas is used as the driving gas to prevent the organic liquid from being contacted with air, the safety is higher, and the service life is prolonged. The overpressure protection water seal ensures that the oil drum does not have the top bulging danger phenomenon in the oil conveying process, oil stored in the oil drum can reach the minimum amount, the drum is very convenient and rapid to replace, and the siphon oil pouring phenomenon does not occur.

Embodiments of the present disclosure generally relate to processes for recycling a composite material. In an embodiment is provided a process for recycling a composite material. The process includes reacting a mixture comprising an amine and a composite material comprising reinforcement material and a cured thermosetting resin matrix to form a reaction product mixture. The process further includes isolating the reinforcement material from the reaction product mixture and isolating an organic liquid composition comprising degraded residues from the reaction product mixture. The reinforcement material and organic liquid composition isolated may be re-used to make new materials.

To provide a non-particulate organic porous absorbent that allows control of the absorption rate or absorption capacity of water, organic solvents, oils, or other organic liquids.SOLUTION: A non-particulate organic porous absorbent is a polymer of monomers that include a low Tg monomer whose homopolymer exhibits a glass transition temperature below 0°C, the absorbent comprising an emulsifier.SELECTED DRAWING: None

The application relates to the technical field of organic liquid hydrogen storage, and discloses a catalyst, a preparation method thereof and application of the catalyst in organic liquid hydrogenation reaction. The preparation method comprises the following steps: (1) mixing a composite solution containing nickel salt, aluminum salt and M salt, an organic acid, a dispersing agent and a mesoporous template to form a mixed solution; (2) performing spray drying and combustion on the mixed solution, collecting by high-voltage electrostatic force, pre-reducing and passivating to obtain an activated carrier; and (3) dispersing the activated carrier in a solvent to obtain a dispersion liquid, mixing the dispersion liquid with a noble metal precursor and a competitive adsorbent, performing first drying, calcination and reduction in sequence after evaporative dehydration. The nickel salt, the aluminum salt and the M salt are nitrate salts; M is at least one selected from cerium, zirconium, lanthanum and zinc; in the step (1), the total molar content of metal elements is that the content of nickel is 5-15%, the content of aluminum is 80-90%, and the content of M is 5-10%. The preparation method is simple, and the obtained catalyst has high activity and high stability.

The present application relates to VOCs source treatment technical field, disclose a kind of aromatic hydrocarbon organic liquid volatilization inhibitor and the method for inhibiting aromatic hydrocarbon organic liquid volatilization.The aromatic hydrocarbon organic liquid volatilization inhibitor contains hollow microsphere, surfactant, stabilizer, dispersant, coupling agent and solvent, for inhibiting the volatilization of aromatic hydrocarbon organic liquid;Wherein, the density of the aromatic hydrocarbon organic liquid volatilization inhibitor < the density of the aromatic hydrocarbon organic liquid, and the density of the aromatic hydrocarbon organic liquid volatilization inhibitor is 0.65-0.8g / mL.The density of aromatic hydrocarbon organic liquid volatilization inhibitor provided by the present application is 0.65-0.8g / mL, less than the density of aromatic hydrocarbon organic liquid, the inhibitor has certain flowability and stability, can realize to aromatic hydrocarbon organic liquid surface automatic covering and complete sealing, effectively prevent aromatic hydrocarbon organic liquid volatilization in storage, loading and transportation process.

The present invention is applicable to the field of organic liquid hydrogen storage technology and provides a method for preparing a catalyst for organic liquid dehydrogenation reactions. The specific steps include: preparing a dopamine solution containing a metal active component under air-tight conditions to obtain a catalyst precursor solution; pretreating a catalyst support; mixing the catalyst precursor solution and the pretreated catalyst support, exposing them to air, stirring and drying them thoroughly to obtain a catalyst precursor; and calcining the catalyst precursor to obtain a target catalyst. The target catalyst prepared by this method is applied to the catalytic dehydrogenation reaction of organic liquids, achieving excellent catalytic dehydrogenation performance, low production cost, high catalytic efficiency, and good stability.

The invention discloses a metal organic framework material for adsorbing and separating methane and nitrogen in wharf oil gas as well as a preparation method and application of the metal organic framework material. The metal organic framework material is a modified Al-fumarate material which is obtained by performing organic liquid post-treatment on a framework material formed by complexing an aluminum metal node and fumaric acid. According to the method for modifying the Al-fumarate metal organic framework material based on organic matter aftertreatment, Al-fumarate material basic powder is prepared through a simple hydrothermal process, pretreatment is performed through vacuum high-temperature degassing, then aftertreatment modification is performed through organic liquid, and the high-performance methane nitrogen adsorption and separation material is prepared. And optimization of methane adsorption capacity and methane nitrogen selectivity is realized. The material can be applied to methane adsorption and recovery in the wharf oil gas treatment process, has the technical advantages of simple preparation conditions, easily available raw materials and excellent adsorption performance, and overcomes the bottleneck of the existing material in methane adsorption.

The invention discloses a bean-based multi-bacteria organic liquid fertilizer and a preparation method thereof. The preparation method sequentially comprises the steps of feeding and dissolving, initial pH adjustment, heating and hot soaking, cooling and enzymolysis, and adjustment and inoculation before fermentation. The method specifically comprises the following steps: performing efficient pretreatment by adopting alkaline hot soaking in cooperation with two-stage high-shear crushing, then fully degrading macromolecular substances in bean flour through a two-stage temperature control enzymolysis process, and finally performing anaerobic fermentation through a compound microbial agent to generate a final product. Therefore, the problems of insufficient raw material degradation, long fermentation period and low product activity in the prior art are effectively solved, the finally obtained liquid fertilizer is rich in small molecule peptides, free amino acids and high-activity probiotics, the product stability and absorption efficiency are remarkably improved, and the liquid fertilizer is suitable for modern fertilization modes such as drip irrigation and foliage spraying.

Systems and processes for producing ammonia products and calcium carbonate products, the latter containing sequestered carbon dioxide, from an effluent derived from one or more organic feedstocks. Solids are removed from an organic feedstock that contains a nitrogen compound to produce an organic liquid effluent that contains ammonium and / or ammonia. Ammonia is stripped and concentrated from the organic liquid effluent to produce a gaseous mixture that contains ammonia and carbon dioxide, and the gaseous mixture is cooled to produce a condensed aqueous ammoniacal nitrogen solution of aqueous ammonia, ammonium bicarbonate, and / or ammonium carbonate. The condensed aqueous ammoniacal nitrogen solution is then contacted with a stabilizing agent to cause a reaction therebetween to produce at least a stabilized ammoniacal nitrogen product and calcium carbonate in which carbon dioxide captured in the ammonium bicarbonate and / or the ammonium carbonate is sequestered.

The invention discloses an organic liquid hydrogen storage molecule design method and device. The method comprises the following steps: acquiring a first data set containing organic liquid molecule physicochemical characteristic information; constructing a splicing code based on a molecular structure in the first data set to obtain a second data set; the splicing code comprises a dehydrogenation molecule structure and a hydrogenation molecule structure; constructing a regression prediction model, and training by using the second data set; constructing a molecular design model, splicing the code input, and generating and screening new hydrogen storage molecules; inputting the new hydrogen storage molecules into the trained regression prediction model, and predicting the addition / dehydrogenation capability of the new hydrogen storage molecules to obtain a prediction result; and screening the molecule with the best hydrogen storage capacity based on the prediction result. By using GNN model regression prediction and VAE model molecular design, a new method is provided for novel organic liquid hydrogen storage molecular design.

The invention provides a regeneration method for repairing a waste lithium iron phosphate positive electrode material based on an oxidation-reduction one-pot method, which comprises the following steps: disassembling a waste lithium iron phosphate battery, calcining a lithium iron phosphate positive electrode plate as a to-be-treated material in an inert gas protection atmosphere, separating lithium iron phosphate powder from the electrode plate in an oscillation mode, and recycling the lithium iron phosphate positive electrode plate. And calcining the black powder in an oxygen atmosphere, carrying out ball milling on the obtained red powder to be treated, an organic liquid medium, phosphate, a lithium compound and an organic reducing agent, uniformly mixing, drying to obtain a mixture to be treated, and carrying out solid-phase reduction calcination in an inert gas protection atmosphere to obtain the lithium ion battery positive electrode material. The regenerated lithium iron phosphate powder material is obtained. According to the invention, energy consumption is reduced, no waste water or waste residue is generated, waste gas emission is reduced, and the method has good significance in environmental protection; the raw materials are simple and easy to obtain, the cost is low, the target of low-valued recovery of the waste lithium iron phosphate material is achieved, and the method has industrial production significance.