106results about How to "High gasoline yield" patented technology

The catalytic cracking catalyst contains medium and large pore alumina with average pore size not smaller than 3 nm 5-60 wt%, zeolite 5-60 wt%, adhesive 5-40 wt% and clay 5-85 wt%. The preparation process includes mixing the said materials, spraying, roasting, washing and drying. Compared with conventional catalyst, the catalyst has strengthened heavy oil converting capacity, obviously improved gasoline and coke selectivity and strengthened heavy metal nickel resistance.

The invention provides a catalysis conversion method used for preparing propylene and high octane gasoline; raw material which is difficult to be cracked contacts a thermal regeneration catalyst; the cracking reaction is carried out under the conditions of 600-750 DEG C of temperature, 100-800h<-1> of weight hourly space velocity, 0.10-1.0MPa of pressure, 30-150 of weight ratio of catalyst to raw material and 0.05-1.0 of weight ratio of water vapour to raw material; the reaction matter flow is mixed with the raw oil which is easy to be cracked and the cracking reaction thereof is carried out under the condition of 450-620 DEG C of temperature, 0.1-100h<-1> of weight hourly space velocity, 0.10-1.0MPa of pressure, 1.0-30 of weight ratio of catalyst to raw material and 0.05-1.0 of weight ratio of water vapour to raw material; after spent catalyst is separated from reaction oil gas, the spent catalyst enters a stripper and is returned to a reactor after being stripped, burned and regenerated; the reaction oil gas is separated so as to gain the object outcome: propylene, high octane gasoline and re-cracked raw material; the re-cracked raw material comprises distillate with the distillation range of 180-260 DEG C and heavy aromatic raffinate oil. The method greatly increases the yield and selection of propylene, obviously improves the yield and octane of the gasoline and leads the reduction range of yield of the dry gasoline to achieve more than 80% by weight.

The present disclosure provides a hydrocracking catalyst, a method for preparing the same and a use of the same, and a method for hydrocracking catalytic diesel oil. The catalyst comprises a support, an active metal component, and carbon, wherein, based on the total weight of the catalyst, the content of the support is 60 to 90 wt %, the content of the active metal component calculated in metal oxides is 15 to 40 wt %, and the content of carbon calculated in C element is 1 to 5 wt %; measured with an infrared acidimetric estimation method, the acid properties of the hydrocracking catalyst are: the total infrared acid amount is 0.4 to 0.8 mmol/g, wherein, the infrared acid amount of strong acid with desorption temperature greater than 350° C. is 0.08 mmol/g or lower, and the ratio of the total infrared acid amount to the infrared acid amount of strong acid with desorption temperature greater than 350° C. is 5 to 50.

RFCC (Resid Fluid Catalytic Cracking) high octane gasoline additive contains the following ingredients by weight percentage taking the total weight of the additive as 100%: 5-90 of H-type (Hydrogen) composite molecular sieve, 1-60 of BETA or EU-1 molecular sieve, 1-30 of ZSM-5 molecular sieve adopting modified or non-modified chemical elements, 2-60 of clay, and 7.0-15.0 of P(calculated based on P205) wherein the precursor of the P is aluminum phosphate sol; and 2-10 of A1 and 5-15 of P are contained in the aluminum phosphate sol, and the PH value of the aluminum phosphate sol is 1.0 to 2.5; and 2-20 of the aluminum phosphate sol is calculated based on HNO3. By adopting the preparation method provided by the invention, the activity of the FCC additives is significantly enhanced; and owing to mixing use with main catalytic agent, the product distribution can be improved, the gasoline octane value is improved, and the gasoline productivity is improved at the same time.

The invention relates to a preparation method of nanometer NaY molecular sieve, which is as follow: under the hypergravity condition of the revolving bed, performing guiding agent preparation, mother solution preparation, and mixing of guiding agent and mother solution, and the sequent crystallization of the reaction product. The invention enables to shorten the crystallization reaction time, simplify the technological process and prepare the high-quality nanometer NaY molecular sieves. The nanometer NaY molecular sieve catalyst prepared through the method can be used for the catalytic cracking of the heavy oil. Compared with the normal industrial molecular sieve, the nanometer NaY molecular sieve has the advantages of great increase of gasoline productivity, diesel fuel productivity, clean oil yield and total-liquid yield, improvement of the product selectivity, and obvious improvement of the product distribution.

A modified Y-type molecular sieve has a rare earth oxide content of about 4% to about 12% by weight, a phosphorus content of about 0% to about 10% by weight, a sodium oxide content of no more than about 1.0% by weight, a total pore volume of about 0.36 to 0.48 mL/g, a percentage of the pore volume of secondary pores to the total pore volume of about 20% to about 40%, a lattice constant of about 2.440 nm to about 2.455 nm, a percentage of the non-framework aluminum content to the total aluminum content of no more than about 10%, a lattice collapse temperature of not lower than about 1060° C., and a ratio of B acid to L acid of no less than about 3.50. The preparation of the molecular sieve includes ion-exchange with rare earth, hydrothermal roasting, gas phase ultra-stabilization, acid treatment, and an optional phosphorus modification.

The invention relates to a composite molecular sieve catalyst for preparing high-octane gasoline. The catalyst comprises 5-60 parts by weight of molecular sieve dry basis, and the molecular sieve comprises 1-45% of BETA molecular sieve, 1-40% of ZSM-5 molecular sieve, and the balance being clay and other molecular sieves selected from one or more of EU-1, NU-87, SAPO-11, L, and the ITQ, MCM-22, MCM-49, MCM-56, USY and REUSY according to 100%; and a compound A containing the BETA molecular sieve and a compound B containing the ZSM-5 molecular sieve are respectively prepared and are mixed according to the weight ratio of 1:0.1 to 10 to obtain the composite molecular sieve catalyst. In a catalytic cracking unit, the catalyst is used as an addition agent to be mixed with a main catalyst to prepare high-octane gasoline, the gasoline production rate is high, and the production rate of liquefied petroleum can be flexibly adjusted.

A petroleum hydrocarbon catalytic cracking catalyst comprises a carrier, a Y-type molecular sieve, a mesoporous molecular sieve with a M41S structure and a molecular sieve with a pore opening diameterof 0.59-0.73 nanometer. The Y-type molecular sieve comprises an ultra-stable Y-type molecular sieve containing phosphorus and rare earth, the total pore volume of the Y-type molecular sieve is 0.33-0.39 ml/g, the pore volume of secondary pores of 2-100 nm accounts for 10-25% of the total pore volume, the unit cell constant is 2.440-2.455 nm, the proportion of non-framework aluminum content to thetotal aluminum content is not higher than 20%, the lattice collapse temperature is not lower than 1050 DEG C, and the ratio of B acid content to L acid content measured by pyridine adsorption infrared method at 200 DEG C is not lower than 2.50. The catalyst has high heavy oil conversion activity, good coke selectivity, high gasoline yield, liquefied gas yield, light oil yield and total liquid yield.

A petroleum hydrocarbon catalytic cracking catalyst comprises a carrier, a Y-type molecular sieve, a mesoporous molecular sieve with a M41S structure and a molecular sieve with a pore opening diameterof 0.59-0.73 nanometer. The Y-type molecular sieve comprises an ultra-stable Y-type molecular sieve containing rare earth, the total pore volume is 0.33-0.39 ml/g, the pore volume of secondary poreswith pore diameters of 2-100 nm accounts for 10-25% of the total pore volume, the unit cell constant is 2.440-2.455 nm, the proportion of non-framework aluminum content to the total aluminum content is not higher than 20%, the lattice collapse temperature is not lower than 1050 DEG C, and the ratio of B acid content to L acid content measured by pyridine adsorption infrared method at 200 DEG C isnot lower than 2.50. The catalyst has high heavy oil conversion activity, good coke selectivity, high gasoline yield, liquefied gas yield, light oil yield and total liquid yield.

The invention discloses a catalytic cracking catalyst and a preparation method and application thereof. The catalytic cracking catalyst comprises cracking active components, clay and binders, wherein the cracking active components comprise, by weight, 25%-70% of first Y-type molecular sieves, 10%-70% of second Y-type molecular sieves and 5%-20% of third Y-type molecular sieves; the binders are modified aluminum sol containing Cl and Si, based on the total weight of the modified aluminum sol, the content of Al ranges from 8% to 13% by weight, the content of Cl ranges from 4% to 9% by weight, the weight ratio of Al to Cl is 1.2-2.2 to 1, the content of Si ranges from 0.1% to 1% by weight, and the pH value of the modified aluminum sol ranges from 2.2 to 5.2. The catalytic cracking catalyst has lower coke selectivity and higher catalytic cracking activity in the heavy oil catalytic cracking process, and a higher gasoline yield can be achieved.

The invention provides a catalytic cracking catalyst. The catalytic cracking catalyst contains clay, alumina containing an additive and a modified Y type molecular sieve. The modified Y type molecularsieve comprises 5 to 12 wt% of rare earth and no more than 0.5 wt% of sodium oxide, and has a total pore volume of 0.36 to 0.48 mL/g; the pore volume of secondary pores accounts for 20 to 38% of thetotal pore volume; a lattice constant is 2.440 nm to 2.455 nm; the content of non-framework aluminum is no more than 10% of total aluminum content; lattice collapse temperature is higher than 1060 DEGC; and a ratio of the amount of acid B to the amount of acid L is no less than 3.50. A preparation method for the catalytic cracking catalyst comprises the following steps: preparing a rare earth-containing Y type molecular sieve with a conventional cell size; carrying out roasting in a water vapor atmosphere with a temperature of 350 to 520 DEG C and a volume percentage of 30 to 95% for 4.5 to 7h; carrying out a contact reaction with silicon tetrachloride; and carrying out acid treatment. The catalytic cracking catalyst has higher heavy oil conversion activity, low coke selectivity, and higher gasoline yield, liquefied gas yield, light oil yield and total liquid yield.

A catalyst for producing gasoline by refinery dry gas comprises 1.0-13.0 m% of VA-group element oxides, 0.1-5.0 m% of rare earth oxide, and 86-98.9 m% of a composite carrier; the composite carrier comprises 15-75 m% of ZSM-5 zeolite, 15-75 m% of ZSM-35, and 10-70 m% of a binder.

An olefinic feed stream comprising butenes is oligomerized over a zeolitic catalyst to make gasoline. Conversion of normal butenes is kept low to maximize gasoline production. Recycle of unconverted butenes provides for sufficient overall conversion to gasoline product.

The invention provides modified Y zeolite and a preparation method thereof. The modified Y zeolite contains 1-15 wt% of IVB family metal according to oxide and 0.1-10.0 wt% of phosphorus according to P. The ratio of the content of metal on the surface of the zeolite to the content of metal in the zeolite is not higher than 0.2. The preparation method of the modified Y zeolite includes the steps of processing Y zeolite with water content not exceeding 5 wt% through organic solvent and modified metallic compound, conducting calcinating, and then conducting processing through a phosphorous containing compound and acid. The modified Y zeolite has heat and hydrothermal stability not lower than that of the rare earth modified Y zeolite and has higher coke selectivity.

The invention relates to a method for producing high-octane gasoline through naphtha. The method comprises the steps: a naphtha raw material is subjected to hydrorefining, primary fractionation and secondary fractionation; methylcyclopentane, cyclohexane and multibranched paraffin are directly separated from the naphtha to serve as gasoline components; and then first heavy ends obtained through primary fractionation are subjected to catalytic reforming, second light ends obtained through secondary fractionation are subjected to an isomerization reaction to obtain a gasoline component, and benzene in the naphtha can further be hydrogenated to form the cyclohexane to be isomerized. According to the method, the gasoline yield can be increased, gasoline composition is optimized, the content ofisoparaffin and cycloparaffin in the gasoline is increased, and the content of arene and n-paraffin is decreased.

The invention relates to the method for producing high octane gasoline through naphtha. The method includes the steps that a naphtha raw material is subjected to hydrorefining, first fractionation andsecond fractionation, methyl cyclopentane, cyclohexane and multi-branched alkane in the naphtha are directly separated to be used as gasoline components, then a first heavy fraction obtained in firstfractionation is subjected to catalytic reforming, and a second light fraction obtained in second fractionation is subjected to an isomerization reaction to obtain gasoline components. According to the method for producing the high octane gasoline through the naphtha, the gasoline yield can be increased, gasoline compositions are optimized, the contents of iso-alkane and cycloalkane in the gasoline are increased, and the contents of arene and normal-alkane are decreased.

The invention discloses an integrated method for synthetising gasoline from methyl alcohol or dimethyl ether. The integrated method is characterized by comprising the following steps: generating hydrocarbons rich in gasoline components from methyl alcohol or dimethyl ether in a synthesis reactor; separating through a flash tank, a gas-liquid separation tank and a fractionating tower to obtain C1-2 hydrocarbons, C3-4 hydrocarbons, light gasoline components, heavy gasoline components and water, wherein the light gasoline components are discharged as products; entering water into a sewage treatment unit; returning C1-2 hydrocarbons to the synthesis reactor after being supersized by a compressor; aromatizing the C3-4 hydrocarbons again, and then directly mixing the product with the heavy gasoline components to enter an alkyl transfer reactor as the raw material; returning the reaction product to the flash tower; discharging a little of C1-2 and heavy gasoline components as byproducts. The integrated method is simple in technological process, and the system is low in energy consumption; on the basis of fed refined methanol, the yield of the gasoline achieves 36-40%; on the basis of the fed dimethyl ether, the yield of the gasoline achieves 50-54%.

The invention belongs to the technical field of catalytic materials, and relates to a silicon-aluminum material, preparation thereof and a low-green-coke high-activity heavy oil conversion catalytic cracking catalyst. The anhydrous weight chemical expression of the silicon-aluminum material is (0-1) Na2O. (15-50) Al2O3. (85-50) SiO2, the most probable pore size is 10-100 nm, the specific surface area is 150-600 m < 2 >/g, the pore volume is 0.5-1.5 ml/g, and the pore volume of pores with the pore diameter of more than 10nm accounts for 70-98% of the total pore volume. The preparation method comprises the steps of adding an alkaline silicon source into an acidic aluminum source, contacting with alkali, and washing. The low-green-coke high-activity heavy oil conversion catalytic cracking catalyst contains the silicon-aluminum material and an in-situ crystallization Y-type molecular sieve. The catalytic cracking catalyst has good coke selectivity.

The invention discloses a regular carrier catalyst with a desulfurization effect as well as preparation and application thereof. The regular carrier catalyst comprises a regular carrier and an activecoating attached to the surface of the regular carrier, wherein the active coating comprises a matrix containing IIA and IIB group metal oxides and a modified metal film attached to the outer surfaceof the matrix, the modified metal film comprises a modified metal, and the modified metal comprises one or more of Cr, Mo and W. The preparation method comprises the following steps: forming a mixturefrom metal powder, a hydroxyl-containing solvent and a surfactant, then treating the mixture under ultrasonic waves to obtain a mixed solution after the ultrasonic treatment; after the ultrasonic treatment, separating the mixed solution to obtain suspension; contacting the suspension with matrix particles, carrying out freeze drying to obtain matrix particles containing a modified metal film, andcoating the regular carrier with the matrix particles containing the modified metal film to obtain the regular carrier catalyst. The catalyst is used for hydrocarbon hydro-desulfurization, has high desulfurization activity and good stability, and can reduce the octane number loss of gasoline.