38results about How to "Suitable for lysis" patented technology

The invention relates to a catalyst used for producing ethylene and propylene by catalytic cracking, and mainly solves the problem that temperature required by the catalyst is high while selectivity to the ethylene and the propylene is low in the existing catalytic cracking reaction. The invention adopts the technical proposal of sieving ZSM-5 / beta zeolite accrete molecular as catalyst, and SiO2 / Al2O3 mole ratio of which is more than 100 to 500, thereby properly solving the problem. The invention is used for industrial production of the ethylene and the propylene by the catalytic cracking.

The present invention provides one-section hydrogenation process for producing food level white oil. By using vacuum gas oil, deasphalted solvent oil and Fischer-Tropsch process oil as material, and hydrogenating catalyst containing modified beta-molecular sieve in 1-9 wt%, and through hydrocracking or hydrogenating, hot high pressure separating out gas and light distillate to obtain liquid product, mixing with newly formed hydrogen, and high pressure hydro-finishing in a reactor with loaded reduction type hydrogenating catalyst, food level white oil is produced. The process is simple and has high product quality.

The invention relates to a method for hydrogenating naphthenic base distillate to produce lubricating oil basic oil. The naphthenic distillate is used as raw material and a one-stage in series hydrogenation process of hydrotreating-hydrodewaxing-hydrofinishing is adopted to produce the lubricating oil basic oil. Ordinary hydrotreating catalysts are filled in the upper part of a hydrotreating reaction area, and hydrotreating catalysts containing modified zeolites are filled in the lower part of the hydrotreating reaction area. The hydrodewaxing and hydrofinishing reaction areas are the same as those of the prior art, and are filled with hydrodewaxing catalysts and hydrofinishing catalysts. Compared with the prior art, the method disclosed by the invention has the advantages that system energy consumption is reduced, the pour point of a product is properly reduced, and the stability of the product is effectively improved.

The present invention relates to a catalyst used for manufacturing ethylene and propylene by naphtha catalytic pyrolysis which mainly solves the problems of high reaction temperature and low yield of catalyst to ethylene and propylene in the existing catalytic pyrolysis reaction. The present invention better solves the problems by adopting the technical proposal of taking a ZSM-5 / Y zeolite symbiosis molecular sieve as the catalyst. The present invention can be used for the industrial production of ethylene and propylene by naphtha catalytic pyrolysis.

A hydrocracking catalyst and a preparing method thereof are disclosed. The catalyst comprises metal components with hydrogenation activity and a carrier comprising a beta molecular sieve, amorphous silicon aluminum and aluminum oxide, wherein properties of the beta molecular sieve are as follows: the specific surface area is 400-800 m2 / g, the total pore volume is 0.4-0.55 mL / g, the SiO2 / Al2O3 mole ratio is 30-60, the relative crystallinity is 120-140%, the infrared acid content is 0.55-1.0 mmol / g, the non-framework aluminum accounts for less than 1% of the total aluminum, the amount of medium-strong acids which is measured by a NH3-TPD method accounts for 70-85% of the total acid amount, and the percent of Na2O is not more than 0.15 wt%. The preparing method includes mixing the beta molecular sieve, the amorphous silicon aluminum and the aluminum oxide, kneading and forming to prepare the carrier; and loading the metal components with hydrogenation activity by a conventional method. The beta molecular sieve which is proper in silicon aluminum ratio, large in specific surface area, proper in acidity, reasonable in pore structure and low in content of non-framework aluminum, and the amorphous silicon aluminum are adopted as cracking components of the catalyst. The prepared catalyst is characterized by producing a clean diesel oil product with a low condensation point with the highest yield, improving properties of hydrogenation tail oil, and the like.

The invention discloses a preparation method for a hydrocracking catalyst and a preparation method thereof. The catalyst comprises a carrier and a hydrogenation active metal component. The carrier comprises a beta molecular sieve, amorphous silicon aluminum and an adhesive. The beta molecular sieve has the properties that a mol ratio of SiO2 to Al2O3 is 60 to 100; a specific surface area is 505 to 850 m<2> / g; a pore volume is 0.35 to 0.60 mL / g; and relative crystallinity is 100 to 148%. After hydro-thermal treatment by water vapor, the relative crystallinity of the beta molecular sieve is 95% or above. According to the invention, the beta molecular sieve with high crystallinity, a high silica-alumina ratio and good stability is used as an acidic component of the carrier and matched with amorphous silicon aluminum; and the hydrocracking catalyst prepared from the carrier is especially applicable to one-stage tandem hydrocracking process and has the characteristics of high activity, good medium oil selectivity and good product properties.

The invention relates to a method for producing lubricating oil base oil from hydrogenated tail oil. Using hydrocracking tail oil as raw material, it can directly carry out vacuum distillation, and under suitable conditions, lubricating oil base oil products can be obtained. The hydrocracking tail oil is made of vacuum distillate oil, solvent refined deasphalted oil and Fischer-Tropsch synthetic oil as raw materials, and uses a hydrocracking catalyst containing modified β molecular sieves. Modified β-molecular sieve with high silicon-aluminum ratio, high crystallinity, and certain secondary pores, through hydrocracking or hydrocracking process, the tail oil with pour point less than -10°C can be obtained. The invention can produce lubricating oil base oil products with excellent performance by selecting the hydrogenated tail oil processed by suitable hydrocracking catalysts without going through pour point depressing and refining processes.

The invention discloses a hydrogenation cracking catalyst carrier and a preparation method thereof. The carrier comprises a beta molecular sieve, amorphous silica-alumina and a binder; the beta molecular sieve has the following properties: the SiO2 / Al2O3 molar ratio is 60-100, the specific surface area is 505-850 m<2> / g, the pore volume is 0.35-0.60 mL / g, and the relative crystallinity degree is 100%-148%; the relative crystallinity degree of the beta molecular sieve subjected to water steam hydrothermal treatment is more than or equal to 95%. The beta molecular sieve with high crystallinity degree, high silica / alumina ratio and good stability is used as an acid component of the carrier and cooperates with the amorphous silica-alumina, so a hydrogenation cracking catalyst prepared by the obtained carrier has the characteristics of high activity, good medium oil selection, and good product properties.

The invention discloses a hydroupgrading catalyst carrier and a preparation method thereof. The carrier contains a beta molecular sieve and aluminum oxide, wherein the natures of the beta molecular sieve are as follows: the molar ratio of SiO2 / Al2O3 is 30-150, non-framework aluminum accounts for below 2% of total aluminum, and silicon atoms coordinated by a Si(OAl) structure account for above 95% of the silicon atoms in a framework structure. The preparation method comprises the following steps: mixing the beta molecular sieve and aluminum oxide and forming for preparation. The carrier disclosed by the invention takes the beta molecular sieve with a uniform framework silica-alumina structure as a cracking component, and a catalyst prepared by using the carrier disclosed by the invention has the characteristics of high yield of a diesel product, good product quality and the like.

The present invention provides one-section hydrogenation process for producing food level white oil. By using vacuum gas oil, deasphalted solvent oil and Fischer-Tropsch process oil as material, and hydrogenating catalyst containing modified beta-molecular sieve in 1-9 wt%, and through hydrocracking inside a hydrocracking co-current reactor to obtain reaction product, hydrorefining in a countercurrent hydrorefining reactor with flash region to exhaust gas and liquid hydrocarbon, the reverse contact reaction between the downward flowing liquid hydrocarbon and the bottom entering newly formed hydrogen in the bed layer with reduction type hydrogenating catalyst, and final gas-liquid separation and product distillation, food level white oil is produced. The process is simple and has high product quality.

The invention discloses a Naβ molecular sieve and a preparation method thereof. The properties of the Naβ-type molecular sieve are as follows: the SiO2 / Al2O3 molar ratio is 40-100, the specific surface area is 500-800m2 / g, the pore volume is 0.35-0.60mL / g, and the relative crystallinity is 101%-150%. The relative crystallinity of the molecular sieve after air roasting is above 100%; the relative crystallinity of the Naβ molecular sieve after steam hydrothermal treatment is above 95%. The preparation method of the invention can not only reduce the usage amount of the organic template, but also can synthesize the Naβ molecular sieve with high crystallinity and high silicon-aluminum ratio, and has better thermal stability and hydrothermal stability.

The invention discloses an inferior-diesel hydro-upgrading catalyst carrier and a preparation method thereof. The catalyst carrier comprises a modified beta molecular sieve, amorphous silica-alumina, macroporous alumina and SB powder. When the catalyst carrier is used for preparing a catalyst, metals for hydrogenation comprise non-noble metals of group VIB and group VIII. The modified beta molecular sieve and the amorphous silica-alumina are taken as cracking components, so that nitrogen resistance of the catalyst is improved, and long-period operation of the catalyst is ensured when high-nitrogen materials are being processed. The modified beta molecular sieve has good cycloalkane ring opening selectivity and a good alkane isomerism performance, and exhibits the advantages of high diesel productivity, large reduction amplitude of diesel solidifying point and obvious improvement of cetane number while the carrier is used for catalytically processing inferior diesel.

The invention discloses a processing method of Fischer-Tropsch synthetic oil. Using Fischer-Tropsch synthetic oil as raw material, the two-stage hydrogenation process of hydrorefining-hydro-upgrading-isomerization dewaxing is used to produce API III + Lubricant base oil. Hydrofining - The resulting oil obtained from the separation of the hydrogenation upgrading reaction effluent enters the isomerization dewaxing reaction zone, and the isomerization dewaxing reaction effluent is separated and fractionated to obtain different types of API III + Lubricant base oil products. The invention has simple technological process and wide adaptability of raw materials, and can be applied to the process of producing special oil products with good stability through hydrogenation of Fischer-Tropsch synthetic oil distillate.

The invention discloses a method for producing API III from Fischer-Tropsch synthetic oil + Hydrogenation process of lube base oil. Using Fischer-Tropsch synthetic oil as raw material, adopt the two-stage hydrogenation process of hydrofining-hydro-upgrading-isomerization dewaxing to produce API III + Lubricant base oil. Hydrofining - The resulting oil obtained from the separation of the hydrogenation upgrading reaction effluent enters the isomerization dewaxing reaction zone, and the isomerization dewaxing reaction effluent is separated and fractionated to obtain different types of API III + The lubricating oil base oil product, the incompletely converted wax component obtained by cooling the fractionated reduced bottom oil is returned to the hydrogenation reforming reactor to continue the reforming reaction. The invention has simple technological process and wide adaptability of raw materials, and can be applied to the process of producing special oil products with good stability through hydrogenation of Fischer-Tropsch synthetic oil distillate.

The present invention provides method of producing food grade white oil with hydrogenated tail oil. Hydrogenated tail oil as material is treated through one high pressure hydrogenating and refining process under proper condition to obtain the food grade white oil product. The hydrogenated tail oil is produced with vacuum gas oil, refined solvent oil or Fischer-Tropsch synthesized oil as material and through hydrocracking or hydrotreating process under the action of hydrogenating catalyst, and has pour point lower than -10deg.c.

The invention discloses a hydrogenation cracking catalyst and a preparation method of same. The hydrogenation cracking catalyst comprises a carrier and a hydrogenation active metal component, wherein the carrier includes [beta] molecular sieve, amorphous silica-alumina, and an adhesive. On the basis of the weight of the carrier, the carrier includes, by weight, 2-15% of the [beta] molecular sieve, 45-85% of the amorphous silica-alumina, and 13-40% of the adhesive. In the carrier, the [beta] molecular sieve, which is high in crystallization degree, high in Si / Al ratio and good in stability, is used as an acidic component and is matched with the amorphous silica-alumina, so that the hydrogenation cracking catalyst prepared with the carrier is especially suitable for a single-stage hydrogenation cracking process with high activity, good medium oil selectivity and high product properties.

The invention discloses a preparation method for a hydrocracking catalyst and a preparation method thereof. The catalyst comprises a carrier and a hydrogenation active metal component. The carrier comprises a beta molecular sieve, amorphous silicon aluminum and an adhesive. The beta molecular sieve has the properties that a mol ratio of SiO2 to Al2O3 is 60 to 100; a specific surface area is 505 to 850 m<2> / g; a pore volume is 0.35 to 0.60 mL / g; and relative crystallinity is 100 to 148%. After hydro-thermal treatment by water vapor, the relative crystallinity of the beta molecular sieve is 95% or above. According to the invention, the beta molecular sieve with high crystallinity, a high silica-alumina ratio and good stability is used as an acidic component of the carrier and matched with amorphous silicon aluminum; and the hydrocracking catalyst prepared from the carrier is especially applicable to one-stage tandem hydrocracking process and has the characteristics of high activity, good medium oil selectivity and good product properties.

The invention discloses a directly-prepared ultrahigh-purity carbon nanotube and a preparation method thereof, belonging to the technical field of carbon nanotubes. Under the condition that purification is not required, the purity of the carbon nanotube is greater than 99.7 weight percent, the tube diameter is between 0.8 nanometer and 30 nanometers, the specific surface area is between 200 m<2> / g and 500 m<2> / g, the agglomeration density is between 30 kg / m<3> and 150 kg / m<3> and the agglomeration particle size is between 20 microns and 150 microns. A method for directly preparing the ultrahigh-purity carbon nanotube by adopting a chemical vapor deposition method comprises the following steps of: dispersing catalyst crystal grains generated with a liquid phase method onto the surface of an inert carrier, drying and baking; cracking hydrocarbon with 1-6 carbon atoms in a fluidized bed reactor to generate a carbon nanotube; and separating the inert carrier from the generated carbon nanotube at a higher air speed. The carbon nanotube obtained with the method has the purity between 99.7 percent and 99.9 percent, and has the advantages of high carbon nanotube quality, no need of removing impurities by acid treatment, low cost and easiness for amplification and preparation.

The invention discloses an Hβ molecular sieve and a preparation method thereof. The properties of the Hβ-type molecular sieve are as follows: the SiO2 / Al2O3 molar ratio is 40-100, the specific surface area is 502-850m2 / g, the pore volume is 0.35-0.60mL / g, and the relative crystallinity is 100%-148%. The relative crystallinity of the molecular sieve after steam hydrothermal treatment is above 95%. The preparation method of the present invention can not only reduce the usage amount of the organic template, but also can synthesize the Hβ molecular sieve with high crystallinity and high silicon-aluminum ratio, and has better thermal stability and hydrothermal stability.