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Found by chance, I’d like to share it with everyone – a method for reducing olefins and benzene in gasoline. This invention relates to a method for reducing olefins and benzene in gasoline through catalytic alkylation and isomerization. It is characterized by the use of an ionic liquid catalyst that is in a liquid state at room temperature or near room temperature, and is composed of nitrogen-containing compounds such as alkylpyridines, imidazoles, or trimethylamines together with metal or non-metal halides. Under conditions where the reaction temperature ranges from room temperature to 120°C, the pressure of inert or reducing gases ranges from atmospheric pressure to 1.0 Mpa, the reaction time is between 10 and 90 minutes, and the ratio of the amount of catalyst used to the weight of the gasoline reactant is between 5% and 30%, the excess olefins and benzene in the gasoline are reduced to appropriate levels through alkylation and isomerization. At the same time, the original gasoline octane rating remains essentially unchanged. The feature of this invention is that the degree of alkylation and isomerization of olefins in gasoline can be controlled within a wide range; the reaction conditions and operations are relatively mild and simple. Gasoline is insoluble in the catalyst, enabling easy separation, and it is not sensitive to any organic sulfur present. This method allows for a reduction in the C4 content in gasoline, thereby lowering the olefin content in gasoline with high olefin levels. The invention provides a way to reduce the olefin content in gasoline with high olefin levels by feeding such gasoline into a distillation tower, where separation takes place – the upper part of the tower yields a light gasoline fraction with a relatively high olefin content, while the lower part of the tower contains a fraction with a lower olefin content ； The light gasoline fraction at the upper part of the tower is then re-injected directly into the middle section of the riser reactor using either the MGD process or the MIP process, or it is modified using one of the processes involved in the FDFCC process ； The heavy gasoline fraction extracted from the bottom of the tower is then blended with gasoline that has undergone a second reaction, and both are sent to subsequent processing stages for further treatment. This method can significantly reduce the olefin content in the remaining gasoline, **thereby reducing the energy consumption of the entire system. A vehicle liquefied petroleum gas with low propane content and high olefin content, along with its preparation equipment and process. This invention provides such a vehicle liquefied petroleum gas, as well as the equipment and processes for its production. The liquefied petroleum gas is first purified to remove elemental sulfur, polysulfides, mechanical impurities, water, and oil residues. Under sealed conditions, a substance is added to the liquefied petroleum gas that does not alter its chemical properties or combustion characteristics, but rather increases its pressure to between 0.2 and 0.5 MPa. Liquefied petroleum gas with low propane content and high olefin content can be refined to meet the requirements for use as fuel in vehicles. It solves, from the perspective of resource structure, the problem posed by the shortage of propane resources in our country, which has hindered the promotion and use of liquefied petroleum gas in vehicles. A method for producing clean gasoline and low-carbon alkenes from petroleum hydrocarbons via catalytic thermal cracking – This invention discloses a method belonging to the field of chemical product production technology, which is suitable for obtaining light alkenes and stable liquid products in high yields from petroleum distillates, through the catalytic thermal cracking of petroleum hydrocarbons. Using existing fluidized-bed or down-flow bed reactors, heavy crude oil hydrocarbons are used as raw materials; under the action of atomized steam, they come into short-term contact with a high-temperature catalyst, and along with a highly active catalyst, undergo catalytic thermal cracking to produce high-octane gasoline with low levels of olefins and high levels of aromatics. High product selectivity and olefin yield. In the catalytic thermal cracking process of this technique, the content of aromatic compounds in the product increases significantly while the olefin content decreases, thereby enhancing its stability; it can be used as a component for gasoline blending or as a raw material for aromatic extraction ； The regenerated catalyst can be reused, enabling continuous production. By using heavy distillate oil as raw material, the sources of light olefins are significantly expanded, thereby reducing raw material costs. A method for determining the olefin content in gasoline using bromine addition and gas chromatography-atom emission spectroscopy: This is a analytical method that combines bromine addition with gas chromatography-atom emission spectroscopy to determine the olefin content in gasoline. It involves diluting both gasoline and bromine using carbon tetrachloride, followed by reacting them under dark conditions in an ice-water bath for 1.5–2.0 minutes; the volume ratio of bromine to gasoline is 0.3–0.7:1. After the reaction, a solution used to remove unreacted bromine is added. This bromine-removal solution consists of a catalyst for the hydrogenation deoxygenation and olefin saturation of Fischer-Tropsch synthesized oils, along with its preparation method and applications. The weight percentage composition of this catalyst includes 5.0–18.0% nickel oxide, 0–11.0% cobalt oxide, 0–6.0% copper oxide, 0–12.0% iron oxide, 0–12.0% titanium oxide, 0–8.0% lanthanum oxide, with the carrier accounting for 46.0–85.0%. The preparation method sequentially includes the pretreatment of the carrier, and the post-treatment for loading the active component and catalyst. The catalyst of the present invention exhibits high activity in the hydrogenation deoxygenation of oils and the saturation of olefins, and is particularly suitable for the hydrorefining process of iron-based slurry-bed Fischer-Tropsch synthesis oils with high contents of oxygenated compounds and olefins. A method for synthesizing polyα-olefin oil. The present invention relates to a method for preparing high viscosity index polyα-olefin synthetic oil using boron trifluoride (BF3). A method for preparing high viscosity index polyα-olefin synthetic oil involves bringing the α-decene raw material into contact with an active chromium catalyst in a batch reactor, and carrying out the reaction under conditions of 0.1–2.0 MPa and 100–250°C for 2–20 hours ； Separate the catalyst, reaction products, and unreacted α-decene ； The reaction product is hydrogenated to yield polyalpha-olefin synthetic oil ； Among them, the chromium catalyst is prepared by using trivalent chromium acetate as a raw material, loading it onto silica gel, and then subjecting it to drying, calcination, and activation ； The active chromium catalyst is added to the batch reactor at a temperature 5-50°C lower than the reaction temperature. The high-quality polyα-olefin synthetic oil produced by this method can meet industrial and ** applications, and the chromium catalyst mentioned is easy to prepare and regenerate. Method for converting light hydrocarbons into olefins, gasoline, and methanol. The present invention provides a method for converting light hydrocarbons into olefins, gasoline, and methanol. In the first step, the gas containing one or more light hydrocarbons is synthesized into higher hydrocarbons including crude gasoline; the unreacted light hydrocarbons and carbon oxides are used to produce methanol, which can be utilized for various purposes, including the synthesis of gasoline or ethylene. Operating oil composition, oil-impregnated elastomer containing said operating oil composition, and olefin-based thermoplastic elastomer composition. The present invention provides an olefin-based thermoplastic elastomer composition that possesses both weather resistance and low-temperature flexibility, excellent flowability, and does not become sticky even when used at high temperatures. In addition, it also provides an operating oil composition for elastomers that confers these properties as raw materials, as well as oil-impregnated elastomers containing said operating oil composition. The operating oil for elastomers according to the present invention has the property that, when 20 parts by weight of the operating oil for elastomers are mixed into 100 parts by weight of an acrylic homopolymer, the melting point of the acrylic homopolymer is reduced by 2–4.5°C compared to when no such mixture is used. Furthermore, it is characterized in that it is a mixture of refined mineral oil and synthetic oil obtained by polymerizing olefin monomers, with the refined mineral oil and synthetic oil preferably mixed in a ratio of 40/60 to 80/20. A process for producing gasoline from low-carbon hydrocarbon raw materials containing olefins. A mixed ethylene α-olefin copolymer multifunctional viscosity improver for lubricating oil composition. Reformation to produce oil. An olefin saturated hydrogenation process to convert residual oil into gasoline blending oil and light olefins. A two-stage process for hydrodesulfurizing gasoline to reduce olefins. Process method A method for simultaneously reducing the sulfur and olefin content of gasoline A catalyst for selective hydrogenation and deolefinization of reformed oil A cracking catalyst for reducing the olefin content of catalytically cracked gasoline for continuous reforming of gasoline Selective hydrogenation and deolefinization catalyst and preparation method using fluidized catalytic cracking process A method for selectively producing light olefins from a naphtha/steam feed A polyolefin catalyst using white mineral oil A method for selective hydrogenation of distillate oils A method for producing clean diesel and light olefins from residual and heavy distillate oils A method for producing olefins with high yields of light oil using a full-distillate crude oil feedstock Methods and apparatus for catalytic gasoline upgrading to reduce olefins Alkylation of olefins with isoparaffins in ionic liquids to prepare lubricants or fuel blends Lubricating oil viscosity index improvers containing alpha-olefin/aromatic vinyl compound random copolymers Catalytic cracking absorption stabilization with gasoline cutting System and process for producing more propylene and reducing olefins A catalyst for reducing the olefin content of gasoline and its preparation method A lubricant blend of polyalpha olefin and Fischer-Tropsch derived lubricant base oil A method and device for producing low-carbon olefins through catalytic cracking of grease or fatty acid Natural gas (methane) and coal synthesis A method for producing olefins from heavy oil A method for reducing the olefin content of gasoline during the catalytic cracking process A hydroetherification process for olefin-containing gasoline Re-cracking of a mixture of circulating oil and catalytic naphtha to maximize the yield of light olefins A hydrocarbon conversion catalyst for producing high-quality gasoline and olefins An FCC gasoline hydrodesulfurization Start-up method of olefin reduction technology. Reformation to produce oil. Olefin saturation hydrogenation method. A catalytic conversion method for producing propylene, butene and low olefin content gasoline. A catalytic conversion method for reducing the olefin content, sulfur and nitrogen content of gasoline. A method for producing high octane low olefin gasoline. Reducing the olefin content in gasoline. A method for reducing the content of hydrocarbons and benzene in gasoline. A catalytic conversion method for reducing the olefin, sulfur and nitrogen content of gasoline. A fluorine-containing olefin-based phosphate water- and oil-repellent agent and its preparation and application. A catalytic conversion method for reducing the olefin, sulfur and nitrogen content in gasoline. A method for producing lower olefins by cracking oil with high-energy electron beam irradiation. Hydrocarbon method A method for deep desulfurization of gasoline to reduce olefins A method and device for catalytic gasoline modification to reduce olefins A device for high-temperature catalytic contact cracking of heavy petroleum hydrocarbons to produce low-carbon olefins A method for simultaneously removing aromatic hydrocarbons and olefins from naphtha and solvent oil A catalytic method for hydrotreating naphtha containing olefins Agent and its preparation method A method for producing benzene-free gasoline by reacting benzene-containing gasoline with olefins A method for reducing the olefin content of catalytically cracked gasoline and maintaining the octane number and the combination of a system tackifier and poly-alpha-olefin oil A method for synthesizing crude benzene and propylene into high-octane number and gasoline components by reforming straight-run gasoline A method for preparing gasoline with low olefin content. A method for producing hydrocarbon oil from waste polyolefin plastic. A method for selective hydrogenation of diolefins in full-distillation cracked gasoline. A chemical refining method for producing low-carbon olefins and aromatics. The catalyst for catalytic cracking of naphtha to produce olefins is based on 1-butene-α-olefin copolymer. A basic oil-soluble dispersant additive, a method of co-feeding heavy petroleum hydrocarbons and methanol to produce low-carbon olefins and gasoline, a reforming method to produce oil, an olefin saturated hydrogenation method, a bio-based polyinternal olefin oil and its preparation method, a cardable hydrophobic polyolefin fiber containing cationic spinning oil, oil shale ash poly Olefin filler and preparation method thereof A cracking catalyst preparation method for reducing the olefin content of gasoline and producing more liquefied gas A catalyst for selective hydrodesulfurization of olefin-containing naphtha and its preparation method A hydrocarbon oil cracking method for producing low carbon olefins An FCC catalyst for reducing the olefin content of gasoline Chemical agent and its preparation method A hydrogenation modification method for reducing the sulfur and olefin content of inferior gasoline A poly-alpha olefin synthetic oil-based magnetic liquid and its preparation method A catalytic conversion method for producing low-carbon olefins and aromatics from oil and fat. A catalytic conversion method for increasing the production of diesel and low-carbon olefins. A method for producing low-carbon olefins from inferior crude oil. A method for removing impurities from olefin polymers or heavy oil. A method for simultaneously producing low-carbon olefins and high-aromatic hydrocarbon gasoline. A pipeline transportation method. Preparation method of polyalpha-olefin drag reducer for oil products Catalytic reaction of residual oil to produce olefins and aromatics Fluidized bed reactor and method Olefin reduction and desulfurization device of gasoline fraction Process of increasing octane number and reducing sulfur content of gasoline containing olefins Catalytic production of light olefins from naphtha raw material High 1,2-content heat Plastic elastomer/oil/polyolefin compositions Method for preparing polyolefin-based synthetic oils A catalytic conversion method for reducing olefins and sulfur and nitrogen content in gasoline Thermoplastic polymer-based and polyolefin-based hoses for oil or gas field operations Low molecular weight ethylene/alpha-olefins as base lubricants Hydrocarbon interpolymer, thermoplastic elastomer/oil/polyolefin composition with low aromatic content, a cracking catalyst for producing isomeric olefins and gasoline, a Co/Co-MCM-41 catalyst for olefin skeleton isomerization in FCC naphtha, a method for reducing olefins and sulfur content in gasoline, a petroleum A method for catalytic oxidative cracking of oil hydrocarbons to produce olefins A process for upgrading FCC full-distillation gasoline while producing low-carbon olefins A method for desulfurizing gasoline and reducing olefins A catalyst for reducing the olefin content in liquefied gas and gasoline mixed raw materials Utilizing the C4 fraction to increase propylene production and reduce olefins in gasoline Content method A catalytic cracking method for reducing the olefin content of gasoline A method for producing olefins from kerosene fractions A lubricating oil compatibility improver containing an α-olefin/aromatic vinyl compound random copolymer using an α-olefin-derived alkyl aryl sulfonate surfactant to recover wax-containing raw materials Oil method C5 monoolefin modified piperylene petroleum resin Preparation method of catalytic gasoline modification to reduce olefins Method for producing propylene A method for gasoline to reduce olefins and produce propylene An auxiliary fractionation tower and its catalytic gasoline reduction of olefins modification method Gasoline cleaning olefin reduction standard increaser contains α-olefin/aromatic Fuel oil compositions of random copolymers of family vinyl compounds. Methods for hydrodesulfurization of gasoline fractions containing sulfur and olefins in the presence of catalysts. Durable adhesive-based ink-printed polyolefin nonwoven fabrics. Generation of high-quality lubricants or fuels by ionic liquid oligomerization of olefins in the presence of isoparaffins. Methods for blending oil materials, catalytic gasoline reduction of olefins, modification methods for increasing octane number, and system-loaded catalysts and their preparation and application in gasoline desulfurization and olefin reduction, catalytic conversion methods for reducing gasoline olefin content using hydrogen-donating components, catalytic cracking of gasoline, deep olefin reduction, and modification methods for increasing octane number. and a system for producing low-sulfur and low-olefin gasoline. A method for hydrogenating gasoline and reducing olefins. A method and device for reducing the olefin content of catalytically cracked gasoline. A catalyst for cracking petroleum hydrocarbons to produce low-carbon olefins. A method for selectively capturing arsenic in gasoline rich in sulfur and olefins. A method for naphtha containing olefins. Catalysts for hydromodification of oil fractions and preparation methods thereof. Methods for producing olefins from heavy gas oil solvent extraction raffinate steam cracking, including direct conversion of feeds of olefins having four and/or five carbon atoms. Polymers for propylene production accompanied by gasoline by-product production to increase low viscosity oil yields. Catalyst for α-olefin synthetic oil and its process A zeolite catalyst preparation process for low-pressure olefin superposition to produce gasoline components A production method of low-sulfur, low-olefin gasoline A strongly lipophilic long-chain α-olefin amphiphilic graft copolymer and its preparation method A catalytic cracking of olefin-containing gasoline A method of decomposing propylene A method of catalytic conversion of petroleum hydrocarbons to increase the production of light olefins A method of coupling catalytic cracking of petroleum hydrocarbons to produce low carbon olefins A catalytic cracking aid to reduce the olefin content of gasoline Using wax to crack olefins to produce 8B aviation jet lubricating oil and No. 20 aviation lubricating oil technology Catalytic cracking catalyst for heavy oil and method for manufacturing olefins and fuel oil. Catalyst for superimposing olefin-containing gasoline to produce diesel and its preparation and application method. Device for reducing olefins from gasoline and producing propylene. A method for measuring the olefin content of gasoline based on Raman spectroscopy for producing low-olefin gasoline and high-yield diesel. Catalytic conversion method: A method of producing olefins from vegetable oils and animal fats; A method of synthesizing gasoline from synthesis gas through olefins; A method of superimposing olefin-containing gasoline to produce low-pollution diesel oil and its catalyst; A method of reducing gasoline olefins and its device; A method of obtaining olefins from residual oil or other heavy oils; Method for producing poly-α-olefin oil using α-olefin as raw material Method for improving the yield of low-carbon olefins in the catalytic conversion reaction of bio-oil Methods for branched polyolefin polymers used as additives in fuel oil and lubricating oil compositions, FCC fraction gasoline modifications, processes and catalysts for simultaneously producing low carbon olefins, methods and systems for reducing the olefin content of catalytically cracked gasoline, methods for producing hydrocarbon oils from waste polyolefin plastics, polysulfide olefin compositions , its preparation method and application as lubricant additives Lubricant blends of polyalpha olefins and Fischer-Tropsch derived lubricant base oils Etherification process of olefin-containing gasoline -Olefin oil hair conditioning composition A production process for maximizing the production of olefins and light aromatics from low-quality oil A catalytic conversion method for producing gaseous olefins and low-olefin content gasoline A controlled olefin-reducing catalyst for olefin-containing gasoline and its application A catalytic cracking gasoline stacked olefin-reducing catalyst and its preparation method A processing technology for improving the grade of olefin gasoline using etherification A catalyst for producing diesel fractions by superimposing low-carbon olefins and a preparation method A hydrocarbon catalytic conversion method for producing low-olefin-content gasoline A method for selective hydrogenation of distillate oil to remove diolefins. A two-step method for the desulfurization of arsenic-containing olefin gasoline. A catalyst for the selective hydrogenation of dienes in light gasoline. A method for normal temperature, liquid-phase purification of automobile gases containing olefin-containing petroleum liquefied gas. Carbon tetraolefin superposition generation Catalyst for diesel production and its preparation method and application. A new method for desulfurizing olefin gasoline to limit the mercaptan content. A hydrogenation method for deeply desulfurizing gasoline and reducing olefins. A method for producing low carbon olefins from wax oil fractions. A polyolefin-coated oil pipeline drag reduction method. Preparation method of polymer microcapsule powder, desulfurization method of olefin gasoline, a gasoline hydrogenation catalyst and preparation method and its application in desulfurization and olefin reduction, desulfurization method of olefin-containing gasoline including at least two different hydrodesulfurization steps, separation of petroleum carbon five fractions A method for inhibiting the self-polymerization or copolymerization of C5 diolefins. A method for determining the diene content in gasoline using near-infrared spectroscopy. A method for catalytically cracking gasoline and hydrogenating the dienes. A method for etherification of olefin-containing light gasoline. A method for reducing the olefin content in gasoline. Petroleum cracking A method for separating diolefins from the C5 fraction; a catalyst for producing light olefins and liquefied petroleum gas in a fluidized catalytic device; a catalytic conversion method for reducing the olefin content in liquefied gas and gasoline; an olefin-reducing cracking catalyst for producing diesel oil and its preparation method A simple method and device for upgrading catalytically cracked gasoline to reduce olefins. A method for preparing low-viscosity poly-alpha-olefin synthetic oil. A method for producing low-carbon olefins by catalytically cracking petroleum hydrocarbons. A vehicle liquefied petroleum gas preparation equipment with low propane content and high olefin content. Transferred from: http://www.zlw114.net/khdt/khdt/200908/13438.html