38results about How to "High hydrocracking activity" patented technology

The present invention relates to a hydrocracking catalyst for hydrocarbon oil comprising a support containing a framework-substituted zeolite-1 in which zirconium atoms and / or hafnium atoms form a part of a framework of an ultrastable y-type zeolite and a hydrogenative metal component carried thereon and a method for producing the same. The hydrocracking catalyst of the present invention makes it easy to diffuse heavy hydrocarbon oils such as VGO, DAO and the like into mesopores, is improved in a cracking activity and makes it possible to obtain a middle distillate at a high yield as compared with catalysts prepared by using zeolite comprising titanium and / or zirconium carried thereon.

The invention provides a hierarchically porous hydrocracking catalyst and an application thereof. The catalyst comprises a carrier and metal components with hydrogenation activity which are loaded on the carrier. The carrier comprises a Y type molecular sieve and aluminum oxide, and metal components with hydrogenation activity are selected from molybdenum and / or tungsten in VIB group as well as nickel and / or cobalt in VIII group. The catalyst is characterized in that pore distribution of the catalyst satisfies the following conditions: the volume of pores whose diameters are less than 2nm accounts for 1.5-75% of total volume of pores of the catalyst, the volume of pores whose diameters are 2-100 nm accounts for 20-85% of total volume of pores of the catalyst, and the volume of pores whose diameters are more than 100 nm accounts for 2.5-65% of total volume of pores of the catalyst. Compared with the catalyst in the prior art, the catalyst has higher hydrocracking activity.

A hydrocracking catalyst containing Si-Al oxides contains two molecular sieves, one's metal components selected from Fe, Co or Ni of VIII family, at least one of them, and another's selected from Mo or W of VIB family, at least one of them. Its K value is 0.4 - 15A.(cm2.g)-1. One molecular sieve with octahedral zeolite structure with the content of Si-Al oxides of 10 - 90wt% of the catalyst, and another's limiting exponential is 0.5 C10G 47 / 20 1 15 3 2003 / 5 / 30 1552818 2004 / 12 / 8 1261542 2006 / 6 / 28 2006 / 6 / 28 2006 / 6 / 28 SINOPEC Beijing 100029 Shi Jianwen Nie Hnog Mao Yichao xu shu pang lizhi 72001 The Company Ltd. of the Chinese Patent Agency (Hong Kong) Zi Building 22, Yingjun Centre, No.23, Gangwan Road, Hong Kong Wanzi

The present invention relates to a hydrocracking catalyst containing compound molecular sieve and its preparation method. Said catalyst composition uses amorphous aluminosilicate and a compound molecular sieve as carrier, in which the amorphous aluminosilicate content is 30-60% of catalyst weight, compound molecular sieve content is 1-20% of catalyst weight, and is the mixture of modified Y molecular sieve and SAPO molecular sieve, VIB group metal oxide content is 10-40%, VIII group metal oxide content is 1-20% of IVB group metal oxide content is 1-10%. Said invented catalyst is prepared by adopting co-precipitation method, and its strength and performance can be raised and improved.

The disclosure relates to a phosphorus-containing high-silicon molecular sieve and its preparation method and application. The molecular sieve has a pore volume of 0.20-0.50mL / g and a specific surface area of ​​260-600m 2 / g, calculated as oxides and based on the dry weight of the molecular sieve, the silicon content of the molecular sieve is 90-99.8% by weight, the aluminum content is 0.1-9.0% by weight, and the phosphorus content is 0.01-2.5% by weight; In the XRD spectrum of the molecular sieve, the diffraction angle position of the first strong peak is 5.9-6.9°, the diffraction angle position of the second strong peak is 10.0-11.0°, and the diffraction angle position of the third strong peak is 15.6-16.7° . Compared with conventional amorphous silicon-alumina materials, the phosphorus-containing high-silicon molecular sieve disclosed in the present disclosure has better stability against nitrogen, and exhibits higher hydrocracking activity when used to prepare a hydrocracking catalyst.

The invention is a kind of hydrocracking catalysts, which contains nonox-alumine, Y type of crystalline silica, iron or cobalt or niccolum from VIII lombardic and molybdenum or tung component from VIB lombardic. The K value of nonox-alumine is0.4,consulting catalyser's pivot, by weight, the content of nonox-alumine is 10%-90% and Y type is 1%-70%. Consulting oxid, by weight, the content of metal component from VIII lombardic is 1%-10% and metal component from VIB is 5%-40%. The catalyser has higher ac of hydrocrack and better selectivity to center cut oil.

The invention discloses a preparation method of a hydrocracking catalyst composition. The method comprises the steps of preparing an acidic mixed solution A containing hydrogenation reactive metals and silicon, preparing a sodium metaaluminate alkaline solution B, adding clear water to a reaction tank, and then filling CO2 into the clear water; and then adding the acidic mixed solution A and the alkaline solution B to the reaction tank in parallel to prepare gel, then adding turbid liquid of a Y type molecular sieve, mixing the substances uniformly, filtering the obtained mixture, drying the obtained filter cake, and then forming, washing, drying and roasting the filter cake, thus preparing the hydrocracking catalyst composition. The hydrocracking catalyst composition prepared by the method has the advantages of big specific surface area, big pore volume, high strength and high effective utilization rate of reactive metal components, and is especially suitable for a hydrocracking process for producing more middle distillates.

A hydrocracking catalyst for heavy fractional oil, contains a Si oxide-Al oxides composition and Mo and / or W and Ni and / or Co loaded on it. Its K value is 0.4 - 15A(cm2 g)-1. The catalyst comprises the Si-Al oxides 50 - 90wt%, with oxide as account, the content of Mo and / or W is 5 - 40wt%, the content of Ni and / or Co is 1 - 10wt%; K=B / MSiO2 is proton acidity of the Si-Al oxides, MSiO2 is the molar fraction in the oxides. The catalyst achieves better activity in heavy fraction oil hydrocracking process.

A hydrocracking method for producing middle distillate oil. After the raw oil is mixed with hydrogen, it is reacted sequentially through a hydrorefining catalyst and a hydrocracking catalyst. The reaction product is cooled, separated and fractionated to obtain a naphtha fraction , middle distillates and tail oil fractions. A hydrocracking catalyst comprising a silica-alumina, a Y-type zeolite, at least one iron, cobalt or nickel selected from group VIII and at least one molybdenum or tungsten metal component selected from group VIB . The invention can process heavy distillate oil with high sulfur, high nitrogen and high aromatic content, and can produce more high-quality middle distillate oil under mild reaction conditions, wherein the kerosene fraction has low sulfur content and aromatic content, which meets jet fuel specifications; Diesel fraction has low sulfur and aromatic content, high cetane number, and is a high-quality low-sulfur diesel fraction.

The invention discloses a high-activity amorphous silica-alumina, a hydrocracking catalyst supported by amorphous silica-alumina, and preparation methods thereof. The preparation method of the amorphous silica-alumina supporter comprises the following steps: preparing a silicon source-aluminum source mixed water solution, mixing the mixed water solution with a precipitant solution, carrying out cocurrent flow coprecipitation to obtain a precipitated slurry, transferring the slurry into a closed vessel, aging, molding, and roasting. The invention also provides a preparation method of a hydrocracking catalyst by using the amorphous silica-alumina as the supporter. The preparation method of the hydrocracking catalyst is as follows: in the preparation method of the amorphous silica-alumina supporter, a nickel salt or nickel salt and metal aid M salt is / are added into the silicon source-aluminum source mixed water solution in the step (1), and the rest steps are the same as those in the preparation method of the amorphous silica-alumina supporter. The coprecipitation process is adopted in the preparation process, and the silicon source and aluminum source finally exist in the catalyst in the form of the amorphous silica-alumina, but the catalyst has much higher activity than the common amorphous silica-alumina catalyst.