512 results about "Reaction energy" patented technology

The present invention discloses a monatomic fluid driven carbon dioxide methanation conversion system and a method of use, comprising an absorption device and a desorption conversion device, wherein the liquid outlet of the absorption device is connected to the first inlet of a heat exchanger via a first pump, the first outlet of the heat exchanger is connected to the inlet of a desorption conversion device, the liquid outlet of the desorption conversion device is connected to the second inlet of the heat exchanger via a second pump, and the second outlet of the heat exchanger is connected to the liquid inlet of the absorption device via a cooler. The use of monatomic fluid as a solvent in the present invention can not only generate electric charge and effectively solve the problem of high energy consumption caused by desorption of CO2 due to thermal desorption, but also couple thermal and electric charge effects to greatly break through the high energy consumption bottleneck caused by reaction temperature faced by traditional thermal desorption, and greatly reduce the reaction energy barrier and reaction heat. During the desorption process, the charge effect of the molecules in the solvent combined with CO2 can promote the realization of efficient methanation conversion of CO2.

This invention discloses a method for catalytically depolymerizing polyethylene terephthalate (PET) to prepare terephthalate. Under catalyst-free conditions or with a salt as a catalyst, PET or its composite system is treated in diester carbonate to achieve chemical depolymerization of PET, yielding PET monomers terephthalate and ethylene carbonate, and achieving complete depolymerization of PET in the composite. This invention, through the reaction of diester carbonate with PET, enables the depolymerization of PET under mild conditions, and further facilitates the research and development of related technologies for the chemical recovery of PET monomers from PET composite or mixed systems. The method provided by this invention has advantages such as high efficiency, environmental friendliness, and mild reaction conditions, and can catalyze the depolymerization of PET to generate its monomer terephthalate, possessing strong industrial application value.

The invention discloses a solar-driven integrated direct air carbon capture system based on cyclic amine, which belongs to the technical field of carbon capture and comprises an absorption-desorption core unit, a solar energy supply unit and a resource circulation module. The absorption-desorption core unit comprises a double-layer spherical reactor and a condensing device, and cyclic amine composite absorption liquid is added into the double-layer spherical reactor; and the resource circulation module comprises a CO2 graded collection device and an agricultural facility. According to the invention, the reaction energy barrier is reduced, the desorption temperature is reduced, the energy consumption required by the reaction is reduced, a large amount of low-price desorption liquid amine solution is provided for the DAC technology, the application cost of the DAC technology is reduced, and the comprehensive utilization efficiency of alkaline raw materials in the amine method carbon capture technology is improved.

The invention belongs to the technical field of chemical engineering, and particularly relates to an aluminum alkoxide salt and a preparation method thereof. According to the method, argon non-thermal plasma is adopted for bombarding the surface of the aluminum foil, an oxidation film on the surface of the aluminum foil is stripped, active aluminum free radicals are formed, the reaction energy barrier of the aluminum alkoxide salt is reduced, the aluminum alkoxide salt can be synthesized under the catalyst-free condition, and green and efficient synthesis of the aluminum alkoxide salt is achieved; a thiosemicarbazide-carboxylic acid bidentate ligand is adopted for complexing impurity iron in alkoxide aluminum salt, sulfur and nitrogen double coordination sites in a thiosemicarbazide unit are matched with oxygen coordination sites in a carboxylic acid group, higher complexing capacity is formed for the impurity iron, and the stability of the complex is improved; the crystallization is regulated and controlled through the pH response characteristic of the carboxylic acid group, so that the impurity iron in the aluminum alkoxide salt is efficiently removed.

The invention provides an Au nanocluster-Cu monatomic / titanium dioxide photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalysis. According to the invention, the Cu monatomic atom is used as a catalyst for hydrogen evolution reaction, the Cu monatomic atom and the Au nano-cluster are loaded at the same time, the Cu monatomic atom can be used as an electron transport bridge to regulate the electronic structure of the Au nano-cluster, the synergistic effect of the Cu monatomic atom and the Au nano-cluster is realized, the catalytic activity is regulated and controlled together, and efficient series connection of multi-step reaction is realized; therefore, the product selectivity can be accurately regulated and controlled; the catalytic oxidation reaction can be dynamically adjusted through carrier mediation or direct contact by virtue of the electron interaction between the Cu monatomic and the Au nano-cluster, so that the electron distribution in the catalytic process is favorably optimized, the reaction energy barrier of C-C bond breakage and hydroxymethyl oxidation is regulated and controlled, and the dynamic performance of generating GA and hydrogen through photocatalytic oxidation of EG is improved.

The invention belongs to the technical field of electrocatalysts, and discloses a method for preparing a heterogeneous monomolecular electrocatalyst by using water-soluble metalloporphyrin / phthalocyanine and a carbon carrier and application of the heterogeneous monomolecular electrocatalyst. The method comprises the following steps: 1) dissolving water-soluble metalloporphyrin / phthalocyanine in water to obtain a water-soluble metalloporphyrin / phthalocyanine solution; 2) soaking the electrode coated with the nanoscale carbon material in a water-soluble metalloporphyrin / phthalocyanine solution; or uniformly mixing the carbon nanomaterial organic solvent dispersion liquid with a water-soluble metalloporphyrin / phthalocyanine solution to obtain a composite catalyst; and dispersing the composite catalyst in an organic solvent, uniformly mixing with a binder solution, coating an electrode with the mixture, and drying to obtain the heterogeneous monomolecular electrocatalyst. The method disclosed by the invention is simple, catalyst molecules can be completely dispersed and adsorbed on a nanoscale carbon material in a single molecule form, and active sites are improved; the prepared monomolecular electrocatalyst is used for electrocatalysis of carbon dioxide reduction reaction, and high product selectivity and stability of carbon dioxide reduction can be realized.

The invention relates to a non-noble metal-based paired electro-catalysis method for producing formic acid by coupling cathode dehalogenation with anode formaldehyde oxidation, which realizes efficient dehalogenation removal of pollutants and generation of high-value products. The Co-CuxO nanowire electrode with excellent catalytic performance is synthesized through a simple method and serves as a cathode and an anode at the same time, and the purpose that the cathode removes halogenated pollutants and the anode oxidizes formaldehyde to produce formic acid at the same time is achieved. Co-CuxO promotes generation of H *, the performance of electroreduction dehalogenation is improved, and the removal rate of trichloroacetic acid can reach 92.1% or above. And moreover, the reaction energy barrier is reduced, the selectivity of formic acid generated by oxidizing anode formaldehyde is improved, and the formic acid selectivity and Faraday efficiency can reach 100%. A paired electro-catalysis system shows extremely stable and outstanding electro-catalysis performance in the aspect of converting wastes into value-added products, and the problems of poor anode utilization rate and high energy consumption in the current electro-catalysis dehalogenation reaction are solved.

The invention discloses a drop tube type falling film devolatilization reactor for high-viscosity fluid. The drop tube type falling film devolatilization reactor mainly comprises an outer tower and a tower core, wherein the outer tower consists of a tower top, a tower body and a tower bottom; the tower core consists of a tower plate and a plurality of falling film falling pipes which are arranged in parallel; each falling film falling pipe consists of a hollow pipe and an out-pipe falling film element fixed on the outer side wall of the hollow pipe; and the hollow pipe parts are communicated with a heat medium and are connected with each other through a heat exchange pipeline. Compared with a traditional reactor, the reactor is flexible in structure and has a large gas-liquid interface, the high-viscosity fluid is converted between a falling film form and a falling strip form, and the surface updating frequency is high; the flow is large, the residence time is controllable, and flexible production can be achieved; no external driving equipment is needed; reaction energy consumption is low, and heat transfer efficiency is high.

The invention discloses an application of a composite material as a photo-thermal catalyst in selective reduction reaction, the composite material comprises carboxylic acid functionalized carbon nanotubes and Zr-MOF coated on the surfaces of the carboxylic acid functionalized carbon nanotubes, and the surface of the composite material contains 0.8-3 at% of zirconium element. According to the composite material, the selectivity of products is greatly improved, the selectivity is 96% or above, the turnover frequency and the production rate are excellent, the use of precious metal is avoided, external source heating is not needed, and the reaction energy consumption is reduced.

The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle for benzofuranone hydrogenation reaction, which comprises a kettle body and a hopper mounted at the top of the kettle body and communicated with an inner cavity of the kettle body, a scraper rotatably scrapes the inner wall of the reaction kettle, reaction solution residues are reduced, normal reaction can be ensured, and air discharged through an exhaust hole can be recycled. A fan is arranged to supply air to a plurality of stirring paddles on one hand and supply air to a spray head mounted at a feeding opening of a hopper on the other hand, so that air in the reaction kettle is prevented from escaping from the hopper, and the accuracy of detecting the condition of discharged air is improved; meanwhile, the materials are accelerated to enter the reaction kettle from the hopper, so that the solid raw materials are prevented from remaining at the material inlet of the hopper, the accurate and reliable formula proportion of each substance participating in the reaction is ensured, the gas generated by the reaction is prevented from being gathered and remaining in the reaction kettle, and the accuracy of the detection result of the gas discharged by the gas outlet pipe is further improved.

The utility model discloses a gas, liquid and solid three-phase reactor for ammonia distillation crystallization, the gas, liquid and solid three-phase reactor is of a tower structure, at least one horizontally arranged transverse baffle is arranged in the reactor at intervals from bottom to top so as to divide the reactor into a plurality of reaction chambers, the transverse baffle is provided with a shaft hole, and the shaft hole is communicated with the transverse baffle. Each reaction chamber is provided with a vertical longitudinal baffle close to the inner wall, and the stirring shaft of each reaction chamber is provided with at least one layer of stirring paddle. A gas rising hole can be formed in the transverse baffle and is matched with the shaft hole, so that mass and heat transfer of gas and liquid in the reactor is more sufficient. The reactor provided by the utility model can effectively control the decomplexing crystallization process, fulfills the aims of fully recovering ammonia and controlling crystal morphology, particle size distribution, tap density and the like, and can ensure that the reaction can be continuously and stably operated for a long time.

The invention discloses a method for preparing 1, 3-propylene glycol by hydrating and hydrogenating acrolein, which comprises the following steps: carrying out hydration reaction by taking an acrolein aqueous solution as a raw material and taking acylated and aminated modified polystyrene resin as a catalyst; carrying out flash evaporation or gas stripping on the product after the reaction to remove acrolein, condensing and recovering the removed acrolein, and carrying out hydrogenation reaction on the acrolein-removed mixed solution serving as a hydrogenation raw material on a metal catalyst; and after the reaction is finished, performing flash evaporation on the product to remove water and light components, and performing vacuum rectification to obtain a high-purity 1, 3-propylene glycol product. According to the method, the modified resin is used for catalyzing the acrolein hydration reaction, the overall yield of the 1, 3-propylene glycol can be increased, the catalyst modification process is simple, the cost is low, the additional value of the final product is high, and the method is suitable for industrial production.

The invention belongs to the field of catalyst preparation, and particularly relates to a binder for catalyst forming and a preparation method and application thereof. The binder for forming the catalyst, provided by the invention, is prepared from the following raw materials in parts by weight: 0.5 to 2 parts of magnesium chloride, 1 to 2 parts of magnesium oxide, 0.5 to 2 parts of sodium carboxymethyl cellulose, 1 to 3 parts of ethylenediamine tetraacetic acid, 2 to 6 parts of nano-hydroxyapatite modified polyester, 1 to 3 parts of organic solvent and 10 to 35 parts of water. When the binder provided by the invention is applied to catalyst forming, on one hand, the problems that a conventional catalyst is poor in binding performance, and acid gas corrodes equipment and pollutes the environment in the roasting process can be solved; on the other hand, the surface acidity of the catalyst carrier can be reduced, a suitable reaction environment can be provided for some reactions needing to be carried out in an alkaline environment or reactions with acidic reactants and intermediates, and the selectivity and conversion rate of the reactions are improved.

The invention belongs to the technical field of chemical synthesis, and discloses a method for synthesizing cyclic carbonate through urea alcoholysis under photo-thermal synergistic catalysis. Uniformly mixing the mixed solution of methanol and ionic liquid, zinc salt and other metal salts, and reacting; and after the reaction is finished, centrifugally separating a product, washing, drying, and calcining to obtain the zinc-based homojunction photo-thermal catalyst. The method comprises the following steps: mixing urea, dihydric alcohol and a zinc-based homojunction photo-thermal catalyst, and reacting for 1-6 hours under the conditions that the light intensity is 1-150 mW / cm, the temperature is 130-160 DEG C and the pressure is 5-30 kPa to obtain the cyclic carbonate. The catalyst used in the method effectively overcomes the limitations of low target product synthesis efficiency and high reaction energy barrier in single thermocatalysis, and the yield of the synthesized cyclic carbonate can reach up to 84.1%. Through light energy excitation coupling thermocatalysis, the harshness of reaction conditions is significantly reduced, and efficient synthesis of cyclic carbonate under mild conditions is realized.

The invention discloses a rare earth element controlled MnCo2O4.5 oxygen evolution self-supporting electrode and an application thereof. A nano array growth method is combined with a heat treatment two-step method to directly grow rare earth elements on a conductive substrate to regulate and control the MnCo2O4.5 nano array structure. The nano array growth method can realize preparation of the catalyst with high specific surface area and good electron transport performance, avoids use of a binder, significantly improves charge transport efficiency, and enhances the binding force of the catalyst and the substrate. Rare earth cations with small magnetic moment are introduced into MnCo2O4.5 to regulate and control the electron spinning state of Co, redistribution of charges is induced, the oxygen species adsorption / desorption capacity is optimized, and the reaction energy barrier is reduced. The nano array structure provides abundant active sites and rapid mass transfer channels, and rare earth doping synergistically improves the intrinsic activity and structural stability of the material. The preparation process provided by the invention is environment-friendly, has higher flexibility and controllability, and can meet the requirements of different application scenes.

The invention provides a composite hydrogen transfer catalyst based on an MOFs material as well as a preparation method and application of the composite hydrogen transfer catalyst. The composite hydrogen transfer catalyst comprises the MOFs material loaded with an active metal component and solid alkali, the active metal component is selected from at least one of palladium, platinum, ruthenium, rhodium and nickel; the active metal component accounts for 0.5-5% of the mass of the catalyst; the MOFs material is selected from at least one of ZIF-8, MIL-101, UiO-66, HKUST-1 and MOF-5 (Metal Organic Frameworks); the solid alkali is selected from at least one of magnesium oxide, calcium oxide, hydroxyapatite and barium oxide. The catalyst provided by the invention has the advantages of high catalytic activity, good selectivity, strong stability, reusability and the like, can efficiently catalyze fatty alcohol to perform hydrogen transfer reaction under a lower-temperature reaction condition to prepare Guerbet alcohol, remarkably improves the yield and purity of a product, and reduces the reaction energy consumption and cost.

The invention discloses a method for synthesizing glycine by coupling oxalic acid with nitrate under the electro-catalysis of a molecular catalyst lead phthalocyanine, and belongs to the technical field of materials and electro-catalysis. The method comprises the following steps: uniformly mixing lead phthalocyanine, a dispersing agent and a binding agent to prepare catalyst slurry; loading the catalyst slurry on carbon paper to obtain carbon paper containing a catalyst; an H-type electrolytic tank is assembled, in the H-type electrolytic tank, an electrolyte of an anode chamber is a sulfuric acid solution, an electrolyte of a cathode chamber is a sulfuric acid solution containing oxalic acid and potassium nitrate, and the cathode chamber and the anode chamber are separated through an ion exchange membrane; a calomel electrode is inserted into the cathode chamber as a reference electrode, carbon paper containing a catalyst is used as a working electrode, a platinum sheet is inserted into the anode chamber as a counter electrode, and glycine is obtained through electrolysis. The glycine is prepared by using the lead phthalocyanine as the catalyst, so that the reaction efficiency can be effectively improved, the reaction energy consumption is reduced, and the production process is simplified.

The invention provides a novel covalent organic framework-based all-solid-state Z-type heterojunction photocatalyst and a preparation method and application thereof.According to the photocatalyst, a two-dimensional triazinyl covalent organic framework material (CTF) and a two-dimensional Ag / TiO2 nanosheet are compounded through electrostatic self-assembly for the first time, then heating is conducted in an inert gas atmosphere at the temperature of 200-350 DEG C, and the photocatalyst is obtained. Nitrogen vacancy is introduced while the interfacial interaction is enhanced, and the covalent organic framework-based all-solid-state Z-type heterojunction photocatalyst is obtained; the two-dimensional triazinyl covalent organic framework material is prepared by mixing and reacting 1, 4-benzenedimethanol, 1, 4-benzene dicarboxamide hydrochloride (1: 2) and Cs2CO3; experiments show that the photocatalyst provided by the invention not only can improve the separation and transfer efficiency of photo-induced electrons-holes in CTF, but also can reduce the CO2 reduction reaction energy barrier and promote the CO2 adsorption and activation ability, thereby showing excellent CO2 catalytic reaction activity and cycle stability.

The invention discloses an electric methane preparation catalyst compounded by Ni nanoclusters and ZrO2 with lattice embedded with Ru single atoms as well as a preparation method and application of the electric methane preparation catalyst. The electric methane preparation catalyst comprises a NiNCRuSA / ZrO2 bimetallic active site catalyst compounded by the Ni nanoclusters and the ZrO2 with the lattice embedded with the Ru single atoms. The electric methane preparation catalyst comprises a NiNCRuSA / ZrO2 bimetallic active site catalyst, the NiNCRuSA / ZrO2 bimetallic active site catalyst is of a ZrO2 composite structure formed by embedding Ru monatomic into Ni nanoclusters and crystal lattices, the Ni nanoclusters and the Ru monatomic are adjacently distributed on a ZrO carrier to form a synergistic catalysis structure, rich and efficient active sites are provided for catalytic reaction, and reactant adsorption and conversion are facilitated; in the subsequent CO2 methanation reaction, the Ni element quickly dissociates H2 and provides sufficient H *, Ru replaces ZrO2 to serve as an active site for CO2 adsorption and conversion, conversion of an intermediate of CO2 can be accelerated, the reaction activity is greatly enhanced through cooperation of the Ni element and the Ru, the reaction energy barrier is reduced, and the overall catalytic efficiency is improved.

The invention belongs to the technical field of chemical engineering and fine fluorine chemical synthesis, and particularly relates to a preparation method of sulfuryl fluoride chloride. According to the preparation method, through the synergistic effect of a gas-liquid reaction system and a closed-loop circulation system, a tertiary amine hydrofluoric acid adduct (such as Et3N.nHF, n = 2-6) is used as a fluorinating reagent, sulfuryl fluoride chloride is generated through a rapid cross-flow reaction in excessive sulfuryl chloride (SO2Cl2) under the conditions that the temperature is 65-100 DEG C and the pressure is 0.5-2.0 MPa, and a liquid-phase byproduct tertiary amine hydrochloride hydrogen fluoride adduct (such as Et3N.HCl. (n-1) HF) is used for preparing the sulfuryl fluoride chloride. Supplementing hydrogen fluoride to regenerate the catalyst and recycling; and after a gas-phase product is pressurized, rectified and purified by a light component removal tower and a heavy component removal tower, totally returning a light component (Cl2 / SO2) and a heavy component (SO2Cl2) to a synthesis system for recycling. According to the method, the reaction temperature, the reaction pressure, the liquid phase dispersion degree and the contact time are accurately controlled, so that the reaction product generates SO2FCl with high selectivity, and the byproduct (R3N.HCl. (n-1) HF) is kept in a liquid phase, so that the reaction can be continuously carried out, and conditions are created for subsequent treatment.

The invention discloses a temperature control enzymolysis reaction device for replacing fat with rice starch, and belongs to the technical field of enzymolysis reaction devices.The temperature control enzymolysis reaction device for replacing fat with rice starch comprises a shell assembly, an inner container assembly is fixedly connected to the inner side of the shell assembly, and a steam heater is installed on one side of the shell assembly; the top end of the shell assembly is fixedly connected with a fixing support, the middle of one side of the fixing support is fixedly connected with a sliding guide rail, and the sliding guide rail is slidably connected with a movable ladder stand. Through the optimized structural design of the shell assembly and the inner container assembly, a stable and efficient heating environment is formed, it is ensured that the enzymolysis reaction can be conducted at the accurately controlled temperature, the influence of temperature fluctuation on the reaction efficiency is avoided, the problem of starch gelatinization caused by too high temperature is effectively avoided, the enzymolysis efficiency and the product quality are improved, and the product quality is improved. Meanwhile, due to the design of a cyclic heating structure, the utilization rate of heat energy is further improved, and energy consumption is greatly reduced.

The invention discloses a method for synthesizing carbonic ester through high-selectivity catalysis of CO2 by taking a halogen-non-halogen ionic liquid composite layered double hydroxide intercalation material structure as a multi-ion buffer catalysis system. The method comprises the following steps: preparing an ionic liquid containing the same cation but different anions (halogen and non-halogen), compounding the ionic liquid with a layered double hydroxide intercalation material to construct a halogen-non-halogen ion buffer catalyst, and catalyzing the reaction of synthesizing carbonic ester from CO2. The application of inhibiting halogenation side reaction and synthesizing carbonic ester with high selectivity can be realized. The halogen-non-halogen composite intercalation material system designed by the invention is simple in preparation method and has the functions of halogen and non-halogen basic ions, and the intercalation structure provides a buffer ordered effect of ion active sites, so that the problem of selectivity of a carbonate product synthesized by catalyzing CO2 through halide ions is solved.

The present application provides a kind of waste oil transesterification reaction catalytic system, belong to biomass refining field.The preparation steps of catalyst include: in the solution containing Ni (NO3) 2 And Fe (NO3) 3 Carboxymethyl cellulose is added, then urea is added, reaction is carried out, and nano-porous NiFe2O4 is obtained, MgCl2 / ZnCl2 Solution and KOH / K2CO3 Solution are added to NiFe2O4 water dispersion, reaction is carried out, solid product is collected, calcination is carried out, and catalyst is obtained.Catalyst is added to waste oil to carry out catalytic reaction.The present application adopts carboxymethyl cellulose to regulate the crystal form, grain size and dispersity of catalyst carrier, and the obtained solid magnetic catalyst can improve the production efficiency of waste oil for preparing biodiesel.The catalyst has high active site, fast reaction rate, mild reaction condition, can reduce reaction energy consumption and production cost.The catalyst also has good magnetic property, is convenient for recovery.The catalyst has good stability, improves the controllability and stability of reaction.

The present application relates to the technical field of alcohol aldehyde condensation reaction, and discloses an alcohol aldehyde condensation reaction method.The alcohol aldehyde condensation reaction method is carried out in an alcohol aldehyde condensation reaction device, the alcohol aldehyde condensation reaction device comprises a micro-channel alcohol aldehyde condensation reactor and an alcohol aldehyde condensation tube reactor which are connected in series; in the presence of an alkali catalyst, a reaction raw material n-butyl aldehyde is subjected to a first alcohol aldehyde condensation reaction in the micro-channel alcohol aldehyde condensation reactor to obtain a first alcohol aldehyde condensation reaction product; and the first alcohol aldehyde condensation reaction product is subjected to a second alcohol aldehyde condensation reaction in the alcohol aldehyde condensation tube reactor.The method uses a micro-channel alcohol aldehyde condensation reactor and an alcohol aldehyde condensation tube reactor to replace a full-mixing kettle reactor in the prior art to carry out alcohol aldehyde condensation reaction, so that the yield of a by-product heavy carbon alcohol can be significantly reduced, and the yield of a target product can be improved.

This invention belongs to the field of compound synthesis, specifically relating to a method for synthesizing D-2,3-diaminopropionic acid. The method includes first reacting D-Boc asparagine and sodium hypohalate in a solvent to obtain an intermediate solution; then adjusting the pH of the intermediate solution to 4-8, removing the solvent to obtain a solid; finally, reacting the solid with acid and purifying it to obtain the final product; wherein the solvent in step (1) is a sodium hydroxide solution. This invention ensures a rapid and complete reaction by controlling the temperature and time of the reaction process; and by adding concentrated hydrochloric acid in stages, it can obtain the deprotected target product in high yield. The method of this invention avoids the use of expensive iodine reagents, uses inexpensive and readily available raw materials, has a high overall reaction yield, low cost, and is suitable for industrial production.

The present invention provides a catalyst composition for olefin oligomerization, comprising: a main catalyst represented by formula (I), an alkylaluminum compound, cyclohexane and water. In formula (I), R1-R 11 are the same or different and each independently selected from hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy and nitro; M is Fe(II), Co(II) or Ni(II). By using an alkylaluminum compound as an auxiliary agent, cyclohexane as a solvent, and simultaneously adding a specific amount of water, the present invention effectively improves the activity of the catalyst composition, reduces the yield of undesired C4 products, and at the same time increases the yield of desired C6-C 10 , C6-C 18 , C6-C 18 linear α-olefin products, and the ethylene oligomerization reaction can be carried out at a relatively high temperature condition that is easy to achieve and operate, greatly reducing the energy consumption.

The utility model relates to the technical field of innocent treatment equipment, in particular to innocent treatment equipment with a carrying basket, which comprises a container, the carrying basket and a water flow driving module, the carrying basket is positioned in the container, the periphery of the carrying basket is closed, a plurality of lower meshes are formed in the bottom of the carrying basket, and a plurality of upper meshes are formed in the top of the carrying basket; the water flow driving module is used for driving fluid in the container to rush into the object carrying basket from bottom to top through the lower mesh holes and flow out through the upper mesh holes. During use, a hydrated object (such as animal remains / plants) needing to be hydrated is placed in the carrying basket, the periphery of the novel carrying basket is closed, and only top and bottom meshes are reserved, so that fluid always rushes into the carrying basket from the lower meshes in the bottom of the carrying basket under the action of the water flow driving module, the fluid is more fully contacted with the hydrated object, and the hydrated object can be fully hydrated. And even hydrated substances float, rotate and roll and accelerate chemical reaction, so that pet remains can be decomposed more sufficiently, and bones of pets or wafers on pet bodies can be kept as a commemorative of a feeder.

The present invention relates to the field of catalyst technology, and more specifically to a mesoporous bifunctional catalyst, its preparation method, and application, and a method for preparing dicyclohexylbenzene. The mesoporous bifunctional catalyst has an average pore diameter of 5 nanometers or greater and contains at least 100 μmol / g of strong acid centers. The mesoporous bifunctional catalyst comprises: 10-30% by weight of an acidic silica-alumina composite; 50-65% by weight of an MCM-41 molecular sieve; 5-10% by weight of a solid superacid; and 1-15% by weight of a hydrogenation metal component. The mesoporous bifunctional catalyst has high catalytic activity and is used to prepare dicyclohexylbenzene, achieving high dicyclohexylbenzene yields and low reaction energy consumption.

The invention relates to the field of oil-water well perforation shot hole unblocking, and particularly discloses a strong base unblocking agent capsule, a preparation method thereof and a targeted comprehensive unblocking method. A strong alkali blocking remover capsule comprises a capsule film shell and a strong alkali blocking remover wrapped in the capsule film shell, the capsule film shell is a multi-layer capsule film, and the strong alkali blocking remover is prepared from, by weight, 20-40 parts of alkaline earth metal hydroxide, 0.5-1 part of metal complexing agent, 0.5-0.8 part of permeation dispersing agent and 5-8 parts of demulsifying agent; the alkaline earth metal hydroxide is at least one of potassium hydroxide and sodium hydroxide; the alkaline earth metal hydroxide is combined with the metal complexing agent, the permeation dispersing agent and the demulsifying agent, so that the alkaline earth metal hydroxide can chemically react with organic blockages such as colloid and asphaltene, micelles formed by asphaltene adsorption resin and oil can be promoted to be damaged, and the organic blockages are further effectively removed.