140 results about "Petrochemistry" patented technology

A method of separating or concentrating hydrocarbon-containing gas mixtures such as hydrogen from hydrocarbons, carbon dioxide from hydrocarbons, nitrogen from hydrocarbons, and hydrocarbons from one another using a selectively permeable membrane. The method is well suited to separate hydrocarbon-containing mixtures such as those generated by petroleum refining industries, petrochemical industries, natural gas processing, and the like. The membranes exhibit extremely good resistance to plasticization by hydrocarbon components in the gas mixture under practical industrial process conditions.

A process is provided that is directed to a steam pyrolysis zone integrated with a hydroprocessing zone including residual bypass to permit direct processing of crude oil feedstocks to produce petrochemicals including olefins and aromatics. The integrated hydrotreating and steam pyrolysis process for the direct processing of a crude oil to produce olefinic and aromatic petrochemicals comprises separating the crude oil into light components and heavy components; charging the light components and hydrogen to a hydroprocessing zone operating under conditions effective to produce a hydroprocessed effluent reduced having a reduced content of contaminants, an increased paraffinicity, reduced Bureau of Mines Correlation Index, and an increased American Petroleum Institute gravity; thermally cracking the hydroprocessed effluent in the presence of steam to produce a mixed product stream; separating the mixed product stream; purifying hydrogen recovered from the mixed product stream and recycling it to the hydroprocessing zone; recovering olefins and aromatics from the separated mixed product stream; and recovering a combined stream of pyrolysis fuel oil from the separated mixed product stream and heavy components from step (a) as a fuel oil blend.

The invention discloses a high-altitude permafrost region porphyry type copper polymetallic mine exploration technology combination method which can improve the prospecting success rate. The method includes the following steps: A, determining a metallogenic system as a collision orogenic metallogenic system in cooperation with a collision orogenic regional geological background according to the output spatial-temporal characteristics of a permafrost region porphyry type copper molybdenum mine typical mineral deposit and numerous mineral occurrences; B, measuring stream sediments with the aim of observing geochemical halos on the upper portion of a porphyry body mineral body, defining a magnetic abnormity region through high-accuracy magnetic measurement, and defining a remote sensing predicting region with the aim of forecasting mineral resources such as copper, lead and zinc through high resolution remote sensing; C, conducting 1:1 soil profile or petrochemistry profile, groove and well exploratory exposure on explored abnormal or mineralization clues; D, defining a mineralized region or the mineral body; E, verifying the defined mineralized region or mineral body through drilling; F, determining the mineral body or the mineral deposit. By means of the method, the prospecting working period of a porphyry type copper molybdenum mineral region can be shortened, and meanwhile numerous metal mineral bodies can be explored.

The invention discloses an intelligent anti-blocking demister used for wet flue gas desulfurization. The intelligent anti-blocking demister comprises a demister body, at least a first order demisting system is provided in the demister body, the demisting system is connected with a PLC control system; the demisting system comprises a first flushing layer, a swing type baffle demisting layer, a second flushing layer, a silk screen demisting layer and a third flushing layer which are successively arranged in an ascending order. The swing type baffle demisting layer is capable of removing liquid drops with large diameter, realizing crude demisting and decontamination, increasing the flushing coverage rate of a nozzle, minimizing the flushing blind area and effectively solving the problems of fouling and blocking of the demister; the silk screen demister is capable of removing the droplets with small diameter in flue gas after performing crude demisting to realize fine demisting. The demister has the advantages of high demisting efficiency, safe and stable operation, uses intelligent control and is capable of effectively preventing the generation of fouling and blocking. The intelligent anti-blocking demister can be widely used in flue gas desulphurization demisting systems of industries like electric power, petrochemistry, metallurgy and cement.

The invention provides a reactor or a blender with micro sieve mesh structure, which relates to the fluid micro dispersion technology and equipment. The invention contains micro sieve mesh structure, a hybrid channel and a fluid distribution chamber, and utilizes the micro sieve mesh to disperse one fluid to another fluid in a form of micron-sized drop or bubble, the blending and reaction process of the drop and the bubble which have high dispersion and high specific surface are rapidly finished in the hybrid channel, so the invention is a novel microstructure reaction vessel or blender which utilizes the micro sieve mesh structure to realize the reaction or blending of homogeneous phase or non homogeneous phase fluid. The invention is characterized by simple processing, convenient operation, large treating capacity for unit volume and so on and can be widely applied to a number of fields like the chemistry, chemical engineering, petrochemistry, medicine, foodstuff, etc.

According to an embodiment disclosed, a feedstock hydrocarbon may be processed by a method which may include separating the feedstock hydrocarbon into a lesser boiling point hydrocarbon fraction and a greater boiling point hydrocarbon fraction, cracking the greater boiling point hydrocarbon fraction in a high-severity fluid catalytic cracking reactor unit to form a catalytically cracked effluent, cracking the lesser boiling point hydrocarbon fraction in a steam cracker unit to form a steam cracked effluent, and separating one or both of the catalytically cracked effluent or the steam cracked effluent to form two or more petrochemical products. In one or more embodiments, the feedstock hydrocarbon may include crude oil and one of the petrochemical products may include light olefins.

A mesostructured aluminosilicate material is described, constituted by at least two spherical elementary particles, each of said spherical particles being constituted by a matrix based on silicon oxide and aluminium oxide, having a pore size in the range 1.5 to 30 nm, a Si / Al molar ratio of at least 1, having amorphous walls with a thickness in the range 1 to 20 nm, said spherical elementary particles having a maximum diameter of 10 μm. A process for preparing said material and its application in the fields of refining and petrochemistry are also described.

The invention discloses a multifunctional anti-incrustation corrosion inhibitor and a preparation method thereof. The multifunctional anti-incrustation corrosion inhibitor is used as a water treatment agent for industrial circulating cooling water, a heating network system and a low-pressure boiler and is prepared from the following components in percentage by mass: phosphate, sulfonate, phosphonate, polycarboxylic acid, azoles and water. The preparation method comprises the following steps of: sequentially adding the components into a reaction vessel at normal temperature, and then stirring, dissolving and mixing to form a finished product. The multifunctional anti-incrustation corrosion inhibitor confirms to the national DL / T806-2002 (electric power) and SH 260407-2003 (petrochemistry) standards of the anti-incrustation corrosion inhibitor for circulating cooling water, can be applied to various water treatment systems and used as the water treatment agent for water with various qualities, and can be directly applied to the water treatment system to play the roles of anti-incrustation, incrustation removal, corrosion mitigation and concentration ratio increase, thereby achieving the purposes of incrustation prevention and removal as well as water saving.

The invention discloses a super-macroporous silicate molecular sieve material and a preparation method thereof, the molecular sieve has the X ray powder diffraction characteristic shown in Table 1, is obtained by hydrothermal synthesis method, has a three-dimensional pore structure of 18 * 12 * 10, good thermal stability, and larger specific surface area, can be incorporated into heteroatom, and has potential application values in petrochemistry, fine chemical engineering and life science and other fields.

The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m 1 / 2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0. Advantages provided by the method include, inter alia, outstanding high temperature erosion and corrosion resistance in combination with outstanding fracture toughness, as well as outstanding thermal expansion compatibility to the base metal of process units. The method finds particular application for protecting process vessels, transfer lines and process piping, heat exchangers, cyclones, slide valve gates and guides, feed nozzles, aeration nozzles, thermo wells, valve bodies, internal risers, deflection shields, sand screen, and oil sand mining equipment.

The present invention relates to an integrated process to convert crude oil into petrochemical products comprising crude oil distillation, reforming, dearomatization, fluid catalytic cracking and aromatic ring opening, which process comprises: subjecting crude oil to crude oil distillation to produce naphtha and one or more of kerosene and gasoil; subjecting naphtha to reforming to produce reformer gasoline; subjecting kerosene and / or gasoil to dearomatization to produce a first stream enriched for alkanes and naphthenes and a second stream enriched for aromatics; subjecting the stream enriched for alkanes and naphthenes to pyrolysis to produce a pyrolysis gasoline or to fluid catalytic cracking to produce a FCC gasoline; subjecting the stream enriched for aromatics to aromatic ring opening to produce a ARO gasoline; and subjecting one or more of reformer gasoline, FCC gasoline and ARO gasoline to gasoline treatment to produce BTX. Furthermore, the present invention relates to a process installation to convert crude oil into petrochemical products using the process of the present invention. The process and the process installation of the present invention have an increased production of petrochemicals at the expense of the production of fuels and an improved BTX yield.

The invention discloses a preparation of efficient phenol-degrading halophilic bacteria and an application thereof, belonging to the technical field of treatment of waste water and sewage. In the invention, halophilic bacteria in the sewage or sludge are taken as a bacteria source; a gradient domestication method is adopted to screen efficient phenol-degrading halophilic bacteria which have strong degradation capability, can adapt to higher salt concentration and can grow well by taking phenol as the sole carbon source in the phenol-containing waste water with the salt content of 5-6% and thephenol concentration of 100-500mg / L; under the environment of high salt and high phenol, the phenol-degrading performance of the mycelium has obvious advantages over that of the traditional activatedsludge method. The strain can be applied to phenol-degrading treatment of waste water to determine the optimal water power retention time and the optimal bacteria input amount and batch processing time, and the operational conditions can be optimized through orthogonal experiments. The screening of the efficient phenol-degrading halophilic bacteria has high application value, and can provide a reference for the removal of phenol in the oil extraction waste water and the industrial treatment of the phenol-containing wastewater with high content of salt in petrochemistry industry.

The invention relates to a preparation method of a high-efficiency polyether organic silicon defoaming agent applied under the severe environment. The preparation method has the characteristics that acrylate monomers or single-capped end polyurethane acrylate macromolecular monomers containing double bonds and allyl polyether are adopted as a compound modifying agent to modify silicone oil with low hydrogen content, the whole process is table, no solvent is needed, polyether organic silicon mother liquor can be prepared, and the high-efficiency polyether organic silicon defoaming agent is prepared by compounding the polyether organic silicon mother liquor with dimethyl silicone oil, hydroxyl silicone oil, white carbon black, a non-ionic emulsifying agent and deionized water and the like. The defoaming agent emulsion can be applied in defoaming of the industries such as paper making, coating, textile, food, pharmacy and petrochemistry under the severe environments with high temperature and strong alkaline.

The invention relates to a waste heat recovery system of a petrochemical heating furnace and belongs to the technical field of petrochemistry. The device comprises a high-temperature section air preheater, a low-temperature section air preheater, a blower, a draught fan arranged between the high-temperature section air preheater and the low-temperature section air preheater, two bypass air ducts, a bypass flue, a gate valve and two baffle plates, wherein one bypass air duct, the bypass flue, the gate valve and one baffle plate are arranged in a low-temperature section; and one bypass air duct and one baffle plate are arranged in the high-temperature section. The system improves the heating efficiency of the heating furnace, makes the draught fan operate at a temperature above a dew point all the time and prevents the impeller of the draught fan from low-temperature corrosion. In addition, when having serious wind leakage or blockage due to low temperature fume corrosion, the low-temperature section air preheater can be cut off manually while the heating furnace still operates with 90 percent efficiency, so the normal operation of the heating furnace and the high-temperature section air preheater is not affected and the low-temperature corrosion of the high-temperature section is avoided.

The invention discloses a refractory castable and a using method thereof. The refractory castable is prepared by taking silica gel / sol as a binding agent and tartaric acid as an accelerating agent and adopting corundum, activated alumina micro powder, 96% of silicon oxide micro powder, pure calcium aluminate cement, steel fibers and an additive. The refractory castable has the characteristics of good flowability, stable curing, shorter curing time, high demoulding, medium temperature and high temperature strength, good thermal shock resistance and the like, and is an excellent refractory material required by thermal equipment in the industries such as metallurgy, machinery, electricity, petrochemistry and construction and by high temperature kilns.

An integrated slurry hydroprocessing and steam pyrolosyis process for the production of olefins and aromatic petrochemicals from a crude oil feedstock is provided. Crude oil, a steam pyrolysis residual liquid fraction and slurry reside are combined and treated in a hydroprocessing zone in the presence of hydrogen under conditions effective to produce an effluent having an increased hydrogen content. The effluent is thermally cracked with steam under conditions effective to produce a mixed product stream and steam pyrolysis residual liquid fraction. The mixed product stream is separated and olefins and aromatics are recovered and hydrogen is purified and recycled.

The invention relates to a multi-stage counter-current micro-extraction system, belonging to the fields of chemical extraction and separation field. The multi-stage counter-current micro-extraction system comprises a counter-current micro-extraction group and a pulse feeding and discharging system; the counter-current micro-extraction group is formed by connecting more than two levels of micro-extraction units, wherein the light-phase material liquid outlet of a preceding-level micro-extraction unit is connected with the light-phase material liquid inlet of a next-level micro-extraction unit, and the heavy-phase material liquid outlet of the next-level micro-extraction unit is connected with the heavy-phase material liquid inlet of the preceding-level micro-extraction unit; the pulse feeding and discharging system comprises a two-way four-cylinder reciprocating pump and four buffer rooms, wherein the outlets of four cylinders of the two-way four-cylinder reciprocating pump are respectively connected with the four buffer rooms; and the material liquid enters in the light-phase material liquid inlet and the heavy-phase material liquid inlet of the micro-extraction unit on each level alternatively. The multi-stage counter-current micro-extraction system has high extraction efficiency, low energy consumption and compact structure, is convenient to manufacture and has an important application prospect in many fields of chemical industry, petrochemistry, medicine, food and the like.

The invention provides a preparation method of aluminium silicate fibers. The preparation method comprises the steps of melting water granulated slag clinkers and mineral clinkers and carrying out fiber forming treatment on the water granulated slag clinkers and mineral clinkers to obtain the aluminium silicate fibers, wherein minerals are selected from one or more of coal gangue, flint clay and kaolinite rocks. In the preparation method of aluminium silicate fibers, provided by the invention, the aluminium silicate fibers are prepared by using the ironmaking wastes, namely the water granulated slag clinkers and the coal gangue clinkers, as raw materials, so that the aluminium silicate fibers not only can be used at 1000 DEG C but also can meet the requirement of heat insulation in most fields such as power, petrochemistry, metallurgy and the like and replace basalt and slag, use industrial wastes as the raw materials, are lower in cost and reduce environmental pollution caused by the wastes.

A method of managing the valves of a simulated moving bed separation system comprising at least one column of adsorbent beds split into several zones delimited by injection and draw-off points, allowing finer monitoring of a determined concentration profile. The method comprises, during each period between the shift times of the injection and draw-off points, in opening and closing a first valve located at one end of a zone according to a determined law, while opening and closing the valve downstream from the first valve in relation to the direction of flow of the recirculation flow, according to the same law with a lag, referred to as overlap time, in relation to the first valve, which is less than or equal to the period, the law imposing a constant total flow rate for the flow passing through the two consecutive valves throughout the overlap time. Applications are any simulated moving bed separation system, preferably those used for relatively small-tonnage production such as fine petrochemistry, pharmaceutical industry, certain food processing industries, etc.

The invention provides a solvent lignin-modified epoxy resin curing agent and a preparation method thereof. The epoxy resin curing agent is prepared from the following raw materials in part by weight: 10 to 30 parts of solvent lignin or derivative of the solvent lignin, 30 to 60 parts of phenol, 15 to 35 part of aldehyde, 20 to 45 part of ammine and 0.05 to 0.2 part of sulfuric acid catalyst. The phenol-aldehyde-ammine epoxy resin curing agent is prepared by the Mannickreaction of the solvent lignin or derivative of the solvent lignin and the phenol, aldehyde and ammine. When the solvent lignin-modified phenol-aldehyde-ammine epoxy resin curing agent provided by the invention is used, petrochemical and coal chemical products can be replaced, the consumption of the petrochemical and coal chemical products is reduced, the cost of the epoxy resin is reduced, the lignin renewable resource in the waste from biorefinery is fully utilized, and the development of low-carbon economy is promoted.

Process for the production of a hydrocarbon fraction with a high octane number and a low sulfur content from a hydrocarbon feedstock, comprising at least the following stages: A hydrodesulfurization stage of the hydrocarbon feedstock, At least one stage for extracting aromatic compounds on all or part of the effluent that is obtained from the hydrodesulfurization stage, whereby said extraction leads to a paraffin-enriched raffinate and an aromatic compound-enriched extract sent to a gasoline pool to improve its octane number. A portion of the paraffinic raffinate can be used in a mixture with the aromatic extract; another portion can be used as a petrochemistry base either for producing aromatic compounds or for producing olefins.

The invention relates to a waste gas treatment device for treating the gas which is difficult to be degraded biologically and generated by a petrochemistry industry production site and a wastewater treatment field by utilizing special effective microorganism, in particular to a combined type biological purification tower, which integrates all advantages of a biological filtration tower and an aeration tank, and realizes the degradation to the waste gas by depending on the special effective microorganism and the special nutrient solution. The device is composed of four main areas of a bottom part aeration area, a lower layer spaying area, a filling area and an upper layer spaying area, the mixed liquid in the bottom part aeration area returns to the tower via a circulation pump through the upper layer spaying area and the lower layer spaying area, and spiral nozzles are arranged both in the upper layer spaying area and the lower layer spaying area; after the waste gas enters the tower through an induced draft fan, the hydrophilic organic pollutant thereof is trapped when getting through the lower layer spaying area, and is degraded through depending on the microorganism at the bottom part, the volatile organic compound is adsorbed and degraded by the biofilm adhered on the filing material when getting through the filling area, and the purified waste gas is exhausted through an exhaust opening arranged at the top part, thereby reducing the pollution to the surrounding environment.

The invention relates to a microporous light-weight corundum fireproof aggregate and a preparation method thereof. According to a technical scheme in the invention, 55 to 100 wt% of industrial alumina fine powder and 0 to 45 wt% of industrial aluminum hydroxide fine powder or alpha-Al2O3 micro powder are used as raw materials, and the raw materials undergo dry grinding on a ball mill for 0.5 to 3 h at first, then balling in a ball forming mill to obtain a ball blank with a size of 20 to 30 mm and finally rapid sintering in a shaft kiln at a temperature of 1700 to 1950 DEG C so as to obtain the microporous light-weight corundum fireproof aggregate. The preparation method for the microporous light-weight corundum fireproof aggregate is simple and easy and is applicable to volume industrial production; the microporous light-weight corundum fireproof aggregate has the advantages of a small bore diameter, high strength, low thermal conductivity, anti-scouring performance, erosion resistance and the like, can be used in a part where the wall of a steel ladle directly contacts with molten steel, is also applicable to production of iron runners, slide plates, ventilating bricks and the like and to other industrial kilns used in petrochemistry, ceramics and the like and can obviously reduce energy consumption.

Novel nanosized layered double hydroxide materials and a method of producing the same as well as uses of said material. The novel materials are uniform and have the general formula I[M2+1-xM3+x(OH)2][An-x / n.zH2O]  IwhereinM2+ is selected from Mg2+, Ca2+, Mn2+, Fe2+, Co2+, Ni2+, and Zn2+M3+ is selected from Al3+, V3+, Cr3+, Fe3+, Co3+, Sc3+, Ga3+, and Y3+,An- stands for an anion,x stands for a value in the range from 0.2 to 0.33,n is an integer from 1 to 4 andz is an integer from 1 to 10.The particle size is less than 1 μm. The material can be used in heterogeneous catalysis in organic chemistry and petrochemistry, magnetic materials, pharmaceutical applications, electrode materials, tissue engineering, cosmetics, and dietary supplements.

The invention relates to a material with a water-controlled function and a preparation method of the material. The matrix of the material with a water-controlled function is foam metal; one layer of poly-perfluorinated alkyl siloxane film is arranged on the surface of the foam metal; and the poly-perfluorinated alkyl siloxane film has the thickness of 30 to 40 nm. The preparation method for the material with a water-controlled function comprises the following steps: soaking the foam metal into nitric acid at the concentration of 1 to 5 mol / L for 20 minutes to 1 hour, taking out the foam metal, cleaning the foam metal by using deionized water and drying; placing the dried foam metal into a low-temperature plasma surface treatment instrument reaction chamber and performing treatment for two times; and placing the foam metal into the mixed solution of poly-perfluorinated alkyl siloxane and absolute ethyl alcohol, soaking for 24 to 48 hours, cleaning by using absolute ethyl alcohol, drying, and forming one layer of poly-perfluorinated alkyl siloxane film on the surface of the foam metal to obtain the material with a water-controlled function. The material with a water-controlled function has super-hydrophobicity and super-lipophilicity and has wide application prospect in the fields of industry and mining, petrochemistry, metallurgy, machinery, environmental protection and the like.

The invention discloses a preparation method for a super-macroporous silicate molecular sieve material. The molecular sieve material is obtained by utilizing a low-cost template agent and adopting a hydrothermal synthesis method. The prepared super-macroporous silicate molecular sieve has a UTD-1 structure, 14-ring pore channels in the direction of a crystal axis c and good thermal stability, canbe doped with heteroatoms, and has potential application value in the fields of petrochemistry, fine chemical engineering, life sciences and the like.