1430 results about "Hydrogen treatment" patented technology

A reactor system includes a ketopyrolysis zone in which a metal oxide catalyst reacts with a lipid feedstock to produce a renewable fuel intermediate composition. The renewable fuel intermediate composition includes a jet fuel fraction in which a non-aromatic cyclic hydrocarbon content exceeds an acyclic isoalkane content. The renewable fuel intermediate composition is hydrotreated to produce a fuel composition that includes a jet fuel component with a freezing point less than −15° C.

A process system and process method for treating hydrogen sulfide-containing acid gas. The process system comprises a sulfur recovery unit, a tail gas treatment unit having an acid gas concentration function, and a flue gas alkaline scrubbing unit. The method comprises: subjecting sulfur-containing tail gas to concentration treatment by means of an absorption column (1) of the tail gas treatment unit, and then introducing same into the sulfur recovery unit to undergo a Claus reaction for separation, so as to obtain sulfur and sulfur recovery tail gas; introducing the sulfur recovery tail gas into the tail gas treatment unit, successively carrying out combustion and hydrotreating, and introducing the obtained gas into the absorption column (1) of the tail gas treatment unit; and in the tail gas treatment unit, introducing gas absorbed by the absorption column (1) into the flue gas alkaline scrubbing unit, and successively carrying out incineration and alkaline scrubbing, so as to discharge desulfurized gas. The content of SO2 in the tail gas treated by the process system is ≤50 mg / Nm3, and the requirements for full-period standard reaching of sulfur dioxide emission of tail gas during startup, shutdown and normal operations can be satisfied.

The present application relates to hydrogen production technology field, especially to a kind of methanol hydrogen production method, comprising the following steps: S10: methanol water is heated and vaporized to obtain methanol water vapor;S20: methanol reforming reaction obtains hydrogen mixture gas;S30: after cooling treatment to hydrogen mixture gas, through water washing tower absorption unreacted methanol water, then, adjust the relative humidity and temperature of hydrogen mixture gas;S40: hydrogen mixture gas is input into carbon dioxide absorption tower to remove carbon dioxide;S50: after removing carbon dioxide, product hydrogen is obtained and input hydrogen tank storage to supply user end.The above-mentioned methanol hydrogen production method, by methanol water vapor reforming hydrogen treatment, obtains hydrogen mixture gas.Again, hydrogen mixture gas is purified to obtain product hydrogen with very low carbon monoxide content, with raw material easy to transport, the hydrogen purity of output is high, equipment construction cost is low, and energy consumption is low and the like advantages, reach the purpose of expanding hydrogen application range.

The present invention relates to a process for the treatment of a plastics pyrolysis oil, comprising:a) the hydrogenation of said feedstock as a mixture with at least a part of the liquid effluent resulting from stage c) and in the presence of hydrogen and of a catalyst at a temperature between 14° and 340° C.;b) the hydrotreating of said hydrogenated effluent in the presence of hydrogen and of a catalyst;c) a separation of the hydrotreated effluent operated at high temperature and high pressure, in order to obtain a gaseous effluent and a liquid effluent, a part of which is recycled upstream of stage a),d) a separation operated at low temperature and high pressure and fed with the gaseous effluent and the other part of the liquid effluent resulting from stage c) and an aqueous solution, in order to obtain a hydrocarbon effluent.

Electrical power derived from a renewable energy source is used to perform water electrolysis to produce oxygen and hydrogen. A flue gas and heat are produced from combustion of a fuel using at least a portion of the oxygen generated by electrolysis. A feed stream including hydrocarbon oil is hydroprocessed using the generated heat and at least a portion of the hydrogen generated by electrolysis to produce a product including a saturated hydrocarbon. At least a portion of the flue gas is hydrogenated using at least a portion of the hydrogen generated by electrolysis to produce a second product stream including a hydrocarbon, an oxygenate, or both.

The invention discloses a method for producing biological aviation kerosene from high-acid-value oil, which comprises the following steps: mixing the high-acid-value oil without mechanical impurities with a deacidification pretreatment catalyst to obtain a mixture, and adding the mixture into a slurry bed reactor for deacidification pretreatment to obtain effluent; s2, performing solid-liquid separation on the effluent obtained in the step S1 to obtain a liquid-phase product, and performing hydrotreatment on the liquid-phase product sequentially through a fixed bed hydrodeoxygenation reactor, a fixed bed hydrocracking reactor and a fixed bed hydroisomerization reactor which are connected in series to obtain a hydrogenated product; and carrying out gas-liquid separation on the hydrogenation product to obtain a liquid product, and fractionating the liquid product to obtain a naphtha fraction, a biological aviation kerosene fraction and a biodiesel fraction. According to the method, the high-acid-value oil can be converted into the biological aviation kerosene in a high-yield manner.

The invention provides a refining method of epoxy cyclododecadiene. The method comprises the following steps: carrying out activated carbon adsorption and solid alkali adsorption on epoxy cyclododecadiene to obtain an adsorbed material; carrying out hydrogenation reaction on the adsorbed material to obtain a hydrotreated material; and carrying out gas-liquid separation on the hydrotreating material to obtain an epoxy cyclododecene product with the acidity of less than 0.1 mgKOH / g and the chromaticity of less than 20 Hazen. According to the present invention, the high-quality epoxy cyclododecadiene product is obtained by combining the activated carbon adsorption operation and the solid alkali adsorption operation with the hydrogenation reaction, and the method has advantages of simple process flow, strong operability and wide application prospect.

The utility model discloses an inerting and discharging combined safety protection device for a solid hydrogen storage tank, and belongs to the technical field of hydrogen storage and supply. The device comprises a solid hydrogen storage tank main body, a pressure and temperature sensing module, an inert gas injection system, a flameless relief device and a hydrogen treatment unit, the pressure and temperature sensing module monitors parameters in the tank in real time, when the parameters exceed a preset threshold value, the inert gas injection system injects inert gas from the lower portion of the tank body at constant pressure, the air pressure is stabilized through flow control, and meanwhile hydrogen is pumped out of an opening in the upper portion of the tank body to the processing unit; and a discharge port is formed in the side surface of the tank body and is linked with the flameless discharge device. According to the device, through the design of inerting inhibition and safe release, the potential safety hazard of overtemperature and overpressure in the solid hydrogen storage process is solved, the stability and safety of a hydrogen storage system are improved, and the device is convenient to operate and adapts to transformation of an existing solid hydrogen storage tank.

The invention provides a method for producing needle coke by using FCC slurry oil, and belongs to the technical field of needle coke, the production method comprises the steps of filtration separation, reduced pressure distillation, solvent extraction, hydrotreatment, carbonization coke formation and calcination; in hydrotreatment, a hydrogenation catalyst comprises a composite carrier and 10-45% by mass of active elements, and the active elements comprise Ni and Mo in a molar ratio of 1: (3-6), and at least one of Co, V or W; the composite carrier comprises the following components in percentage by mass: 50-80% of aluminum oxide and 20-50% of silicon oxide; the specific surface area of the composite carrier is 200-400m < 2 > / g, the composite carrier is of a hierarchical pore structure with micropores, mesopores and macropores, and the ratio of the pore volume of the micropores to the total pore volume is lt; the pore volume of mesopores accounts for 50-65% of the total pore volume, and the pore volume of macropores accounts for 30-50% of the total pore volume. The self-made hydrogenation catalyst is used for hydrotreating the raw materials, so that the activity of the catalyst and the selectivity of hydrodesulfurization can be effectively improved, and the desulfurization rate of the materials is obviously improved.

An integrated process having an ultra-low GHG footprint for converting Camelina based biomass to liquid fuels and lubricant base stocks in which a Camelina based biomass feed is converted to liquids by a multistep hydroprocessing method and the liquids are upgraded to produce premium hydrocarbon fuels and lubricants.

The invention provides a garbage pyrolysis gasification multi-stage directional regulation-gas-solid phase reforming synergistic hydrogen production treatment process which comprises the following steps: first-stage regulation: pretreatment and graded feeding: crushing, sorting, drying and catalytic coating treatment are performed on garbage through a physical-chemical directional means; second-stage regulation and control: performing low-temperature pyrolysis directional dechlorination, and performing thermochemical directional conversion on plastic and biomass garbage at 350-450 DEG C; third-stage regulation and control: gasifying and melting are coordinated and oriented, and a gas-solid phase coupling reaction is realized in double fluidized beds at 800-900 DEG C; four-stage regulation and control: multi-stage gas-solid phase reforming is carried out, and the hydrogen yield is increased through catalysis-adsorption synergistic effect in a 700 DEG C moving bed; and five-stage regulation and control: deep purification and hydrogen purification, wherein the synthesis gas is selectively oxidized by utilizing chemical looping combustion to release hydrogen with the purity being greater than or equal to 99.99%. According to the invention, the molten ash is used as a catalytic carrier, and the Fe-Ce active sites of the molten ash are utilized to synchronously realize tar cracking and synthesis gas reforming, so that the conversion rate of tar is effectively improved.

Provided is a continuous process for producing hydrocarbon products, such as jet fuel, diesel, and naphtha, from lignin-derived materials via hydrodeoxygenation in presence of catalysts under hydrogen pressure. The process comprises introducing a lignin-derived material into a feedstock stream; hydrodeoxygenating said feedstock stream in a first reactor to produce a partially hydrodeoxygenated intermediate; separating gaseous and aqueous by-products from said partially hydrodeoxygenated intermediate to obtain an organic intermediate; hydroprocessing said organic intermediate in a second reactor to produce a hydroprocessed product, said hydroprocessing comprising hydrodeoxygenation and hydrogenation; separating gaseous by-products and aqueous phase by-products from said hydroprocessed product to produce a hydrocarbon product; and fractionating said hydrocarbon product into fuels such as naphtha, jet fuel, or diesel.

The present application relates to a kind of green olefin removal method completely replacing clay, which comprises under liquid phase continuous hydrotreating conditions, first, reforming generated oil is mixed with hydrogen through high-efficiency mixer, hydrogen is mixed with reforming generated oil intensively and quickly, and saturated hydrogen-dissolved reforming generated oil is obtained, the saturated hydrogen-dissolved reforming generated oil is sent into first hydrogenation reactor, first contact with nickel-containing catalyst, and the reaction product is then introduced into second hydrogenation reactor, and contact with noble metal-containing catalyst.Reformate is treated by olefin removal, and the product obtained mainly contains benzene, toluene, xylene and other aromatic hydrocarbons, the bromine index of which is less than 20 mgBr / 100g oil, and the loss of aromatic hydrocarbons is less than 0.1wt%.

The invention provides a preparation method and device of a corrosion-resistant hot stamping part. The preparation method comprises the following steps that a bare board is blanked into a blank in a preset shape; the blank is fed into a heating furnace to be heated, so that the blank is austenitized; the austenitized blank is put into a die to be stamped, and the blank is formed into a part; carrying out surface pretreatment on the formed part to obtain a to-be-plated part; and the obtained to-be-plated part is evaporated for less than 30 min, so that a zinc plating layer or a zinc alloy layer with the thickness larger than 3 microns is formed on the surface of the to-be-plated part. According to the preparation method of the corrosion-resistant hot stamping part, the zinc coating or the zinc alloy layer is rapidly applied through the evaporation process, the hydrogen embrittlement risk does not exist in the coating forming process, tempering dehydrogenation treatment is not needed, and the prepared hot stamping part has excellent corrosion resistance.

The invention discloses a probiotic-palladium hydride biological hydrogen storage system as well as a preparation method and application thereof. The preparation method comprises the following steps: co-incubating probiotics and bivalent palladium salt, adding or not adding organic sodium salt to continue incubation, introducing hydrogen into the obtained incubation liquid, and reacting to obtain the probiotic-palladium hydride biological hydrogen storage system. The technical problem that due to the special properties of small molecular size, non-polarity, low solubility, easy diffusion and the like of hydrogen, targeted transportation and controllable release of hydrogen are difficult to achieve through a traditional hydrogen treatment means at present is solved, synthesis of palladium nano-enzyme on the surfaces of probiotics and loading of hydrogen are achieved through a one-step method, the palladium nano-enzyme serves as a hydrogen carrier, and the preparation method is simple and convenient. Under the combined action of the probiotics, directional transportation of the hydrogen is realized, so that the functions of resisting inflammation, resisting oxidative stress and regulating intestinal flora of the hydrogen are realized in intestinal tracts.

The present invention provides a hydrogenation catalyst, and a preparation method therefor and a use thereof. The catalyst of the present invention comprises an active component and a carrier, wherein the active component is composed of Ni, Mo, and P, and the carrier is a composite oxide comprising magnesium oxide, aluminum oxide, and silicon oxide; and on the basis of the weight of the catalyst, the mass ratio of Ni to Mo in the active component is 1.1-5, preferably 1.9-2.3, and Ni is calculated as NiO and Mo is calculated as MoO3. The active component of the catalyst of the present invention contains a high content of nickel. When used for the second-stage hydrogenation of cracked gasoline, the catalyst can be suitable for treating a raw material having a higher diene content, shows relatively strong monoolefin saturation performance and desulfurization and denitrification activity, can effectively inhibit carbon deposition, and has high stability. Therefore, the catalyst of the present invention is particularly suitable for use in industrial production of the second-stage hydrogenation of cracked gasoline or a fraction thereof.

A process for improving yield of kerosene and / or diesel from a renewable feedstock involves hydrotreating a renewable feedstock and hydroisomerizing the hydrotreated liquid. The isomerized effluent is separated to produce an offgas stream, at least one fuel stream having a desired boiling point range, and a heavy fraction having a boiling point greater than the desired boiling point range. The heavy fraction is passed to a hydrocracking zone to produce a hydrocracked effluent. The hydro-cracked effluent is passed to the hydroisomerization zone.

The present invention discloses a coal tar two-stage hydroprocessing device and method, the device comprises: a hydrofining reactor, which receives pretreated coal tar as a first liquid phase feed, the first liquid phase feed flows through each catalyst bed layer from top to bottom in sequence; hydrogen enters uniformly from the bottom of each catalyst bed layer from bottom to top; the first gas phase product after the hydrogenation reaction is discharged from the top of the reactor from an independent gas phase channel, and the first liquid phase product of the reactor flows to the bottom; a hydrocracking reactor, which has the same internal structure as the hydrofining reactor, and receives part of the first liquid phase product of the hydrofining reactor as the second liquid phase feed of the hydrocracking reactor, and generates a second gas phase product discharged from the top and a second liquid phase product flowing to the bottom after the hydrogenation reaction. The present invention can effectively solve the problem of timely separation of the gas phase reaction product of the hydrofining / cracking reactor from the reaction zone, and can improve the properties of the hydrofining feed, reduce the reaction temperature rise of the hydrofining, reduce the difficulty of the reaction, and can also adapt to feedstock oil with worse conditions under the same conditions.

A PEM (Proton Exchange Membrane) electrolytic bath test system relates to the technical field of proton exchange membrane electrolyzed water and comprises an electrolytic bath, a water replenishing and circulating water module, a produced gas pretreatment and analysis module, a nitrogen purging module, a condensation module, a data acquisition module, a control module and a power supply module. The water replenishing and circulating water module is provided with a water replenishing buffer branch and is used for weakening disturbance of low-temperature water to circulating water temperature during water replenishing; the produced gas pretreatment and analysis module comprises a hydrogen treatment system and an oxygen treatment system which are parallel to each other, and a dew point meter is arranged in the hydrogen treatment system and used for detecting the dew point of produced hydrogen. Through the design of the water replenishing buffer branch, the temperature of water entering the electrolytic bath is effectively stabilized; by integrating the dew-point meter, the capability of detecting the dryness of the gas produced by the electrolytic cell is expanded; the overall framework of the system is optimized, the test precision and the energy efficiency are improved, and the operation cost is reduced.

The invention discloses a method and a system for improving the bonding capacity of a titanium-based material in superplastic forming / diffusion bonding, and belongs to the field of titanium alloy material heat treatment and hot working. In order to solve the problem that in the prior art, the connection quality is reduced due to hydrogen dissipation in the high-temperature SPF / DB process of titanium hydride alloy, hydrogen is mixed into an inert gas pressure source, the environmental hydrogen partial pressure is increased to inhibit hydrogen element loss, and therefore the diffusion connection capacity is improved. The method comprises the specific steps that a titanium alloy plate is subjected to hydrogen treatment, cleaned and sprayed with a separant, then the titanium alloy plate is placed in a mold to be vacuumized, argon-hydrogen mixed gas is introduced to serve as a pressure source, and forming and connecting are completed through rapid heating and pressure maintaining; and after the process is finished, carrying out vacuum annealing in a dehydrogenation temperature range to remove hydrogen elements, and introducing argon to accelerate cooling. The hydrogen element can be effectively reserved to improve the joint quality, meanwhile, the dehydrogenation step is simplified, and the method is suitable for the field of titanium-based material hot working, especially the technical field of titanium hydride alloy superplastic forming / diffusion bonding.

[Problem] To provide a method that, by improving each step in a series of processes, can efficiently produce chemical products from waste tire-containing waste materials. [Solution] The chemical product production method comprises: a pyrolysis step for obtaining a first gas fraction, a pyrolysis oil, and a residue by pyrolyzing a pulverized material from a waste tire-containing waste material; a low-temperature hydrogenation step for obtaining a low-temperature hydrogenated oil by subjecting a starting oil containing at least a portion of the pyrolysis oil to a low-temperature hydrogenation treatment at 180°C to 350°C; a hydrocracking step for subjecting a starting oil containing at least a portion of the low-temperature hydrogenated oil to a hydrocracking treatment at a temperature higher than that of the low-temperature hydrogenation treatment, to obtain a second gas fraction, a light fraction having a boiling point of not more than 350°C, and a heavy fraction having a boiling point above 350°C; and a steam cracking step for subjecting a steam cracking starting oil containing at least a portion of the light fraction to a steam cracking treatment to obtain a chemical product, wherein the amount of the pyrolysis oil in the pyrolysis step is at least 40 mass% with reference to the total amount of the first gas fraction, pyrolysis oil, and residue.

A method for producing liquid organic hydrogen carriers (LOHCs). The method includes passing a hydrocarbon feed stream rich in aromatics to a thermal treatment unit to convert olefinic compounds to heavier compounds through dimerization reaction and generate a dimerized feed stream; passing the dimerized feed stream to a fractionation unit to form a light fraction stream and a heavy fraction stream split at 115° C. to 150° C.; and passing the light fraction stream to an aromatics extraction unit to form an aromatic compounds stream and a non-aromatic compounds stream. The method also includes passing the aromatic compounds stream and an input hydrogen stream to a hydrogenation unit to form a hydrotreated effluent stream; and passing the hydrotreated effluent stream to a separator to remove unsaturated compounds to isolate the saturated compounds as a LOHC stream.

A process of producing jet fuel is disclosed. The process comprises separating lignin from a lignocellulosic biomass to provide a lignin stream. The lignin stream is pyrolyzed and / or hydrotreated to produce an aromatic rich bio-oil stream. The aromatics in the aromatic rich bio-oil stream are alkylated with an alkylating agent to produce an alkylated aromatic product stream. The alkylating agent can be taken from the lignocellulosic biomass. The process produces a green jet fuel.

The present invention discloses a method for secondary suspended bed hydrogenation treatment of crude oil. Crude oil, hydrogen and catalyst are mixed and then enter into a crude oil suspended bed hydrogenation and upgrading reaction unit for hydrogenation and upgrading; the reaction product of the crude oil suspended bed hydrogenation and upgrading is separated into a first gas product and a first liquid product through gas-liquid separation; the first liquid product and the subsequent second liquid product are mixed and then enter into a fractionation device to obtain naphtha, diesel, wax oil and residual oil; part of the residual oil is discharged from the device, and the remaining residual oil is mixed with circulating hydrogen and then enters into a residual oil suspended bed hydrocracking reaction unit for hydrogenation reaction; the reaction product of the residual oil suspended bed hydrocracking is separated into a second gas product and a second liquid product through gas-liquid separation. The crude oil suspended bed hydrogenation and upgrading process adopted by the method can significantly improve the quality of crude oil and increase the yield of light oil; coupled with the residual oil suspended bed hydrocracking process, the deep conversion and utilization of residual oil can be realized. The overall process has the advantages of short process, low operating cost and strong raw material adaptability.

The present invention relates to a method for reducing deactivation of a hydrotreatment catalyst. The hydrotreatment catalyst is used as a main active catalyst for producing renewable hydrocarbons by hydrotreatment from a renewable feedstock which comprises at least an oxygen containing compound, at least one metal containing compound and at least one phosphorus containing compound as impurities. The method comprising adjusting the metal to phosphorus (M:P) weight ratio of the renewable feedstock to a value within the range from 0.70 to 1.26, measured as elemental metal and elemental phosphorus, subjecting the obtained feedstock to a temperature of from 190 to 400° C. under reducing conditions, thereby forming a solid precipitate comprising at least one metal and phosphorus containing compound, and contacting the obtained liquid renewable feedstock with the main active catalyst, in the presence of hydrogen.

A reactor system includes a ketopyrolysis zone in which a metal oxide catalyst reacts with a lipid feedstock to produce a renewable fuel intermediate composition. The renewable fuel intermediate composition includes a jet fuel fraction in which a non-aromatic cyclic hydrocarbon content exceeds an acyclic isoalkane content. The renewable fuel intermediate composition is hydrotreated to produce a fuel composition that includes a jet fuel component with a freezing point less than -15°C.

The invention discloses a wax oil hydrotreating method. Reaction products are timely removed and separated, and catalyst grading setting is performed according to different components, so that raw oil can be subjected to echelon targeted hydrogenation reaction in the reactor, and the problem that the blending ratio is limited due to the fact that the hydrogenation depth cannot be better controlled during blending of catalytic diesel oil and wax oil raw materials is solved; the aromatic hydrocarbon content in heavy naphtha in a hydrocracking product is greatly increased, and the product quality of diesel oil and tail oil is improved.

The invention provides a liquid sulfur removal agent and a preparation method thereof, and belongs to the technical field of natural gas hydrogen sulfide removal treatment.The liquid sulfur removal agent comprises, by weight, 36-66% of s-triazine derivatives, 5-8% of sulfolane, 2-5% of a pH control agent, 10-12% of a stabilizer, 5-8% of a scale inhibitor, 1-2% of a bactericide and the balance deionized water; wherein the s-triazine derivative is selected from a mixture of hexahydro-1, 3, 5-triacetyl-hexahydros-triazine, 1, 3, 5-triacetyl-hexahydros-triazine and 1, 3, 5-triazinane-2, 4-diketone, and the structural formula of the s-triazine derivative is shown in the description. The liquid sulfur removal agent is high in sulfur removal efficiency, good in corrosion inhibition and sterilization performance and not prone to scaling.

The invention discloses a hydrogen trap characteristic parameter determination method based on a genetic algorithm, and relates to the technical field of hydrogen trap characteristic calculation. Placing the sample in a hydrogen filling device for hydrogen filling treatment, wherein the hydrogen concentration in the sample is saturated; transferring the sample into a heating thermal desorption device for hydrogen desorption treatment, collecting overflowed hydrogen through a mass spectrometer to obtain an actually measured TDS curve, and analyzing the category number of hydrogen traps in the material; according to the McNabb and Foster theories, in combination with an Oriani hypothesis, a calculated TDS curve is obtained; establishing an error function between the actually measured TDS curve and the calculated TDS curve; and according to the error function, a genetic algorithm is adopted to invert and solve the concentration and binding energy of various hydrogen traps. The method can accurately predict the concentration of various hydrogen traps in the material and the characteristic parameters of binding energy, and provides technical support for hydrogen embrittlement prevention design, safety evaluation and the like of steel for hydrogen energy storage and transportation equipment.

The invention discloses a refining and purifying method for cast aluminum alloy liquid, which comprises the following steps: firstly, carrying out blowing refining and deslagging treatment on the cast aluminum alloy liquid by using inert gas and a solid powder refining agent, then carrying out blowing refining and dehydrogenation treatment on the cast aluminum alloy liquid by using mixed gas, and carrying out slagging-off and standing to obtain the high-cleanliness cast aluminum alloy liquid. According to the method, powder refining agent injection refining and mixed gas injection refining are combined, so that deep refining purification treatment of the cast aluminum alloy liquid is realized, the harm of air holes and inclusions to the mechanical property of the cast aluminum alloy is eliminated, and the contradictory problem of mutual restriction between strength and plasticity is solved; and the strength and plasticity of the cast aluminum alloy part are improved.