47results about How to "Low non-framework aluminum content" patented technology

The present invention provides a super-stable Y zeolite and the preparation method thereof. The ratio of silicate to aluminum in the super-stable Y zeolite is 6-11. The lattice constant of the zeolite is 2.446 to 2.458 nanometers. The percentage of non-skeleton aluminum in total aluminum in the zeolite is not higher than 30% by weight. The diameter of secondary pores with diameter of 2 to 100 nanometers in the zeolite shows a double probable distribution. The most probable diameter of the secondary pores with comparatively large diameter is 6-15 nanometers. The proportion of secondary pores with diameter between 8 to 100 nanometers in total secondary pores is 35% to 60%. The preparation method of the zeolite includes the step of making the super-stable Y zeolite come into contact with a solution containing organic acids and inorganic acids in the atmosphere of inert gases and/or nitrogen. The modified super-stable Y zeolite provided in the invention is applied to catalytic cracking; therefore the following effects can be realized: the cracking ability of heavy oil is strong, the selectivity of gasoline is high, and the selectivity of dry gas and carbon coke is good.

The invention provides a catalytic cracking catalyst. The catalytic cracking catalyst contains a modified Y type molecular sieve containing phosphorus and rare earth, an alumina binder containing an additive and clay. In the modified Y type molecular sieve containing phosphorus and rare earth, the content of rare earth oxide is 4 to 11 wt%; the content of phosphorus is 0.05 to 10 wt%; the contentof sodium oxide is no more than 0.5 wt%; a total pore volume is 0.4 to 0.48 mL/g; the pore volume of secondary pores accounts for 20 to 38% of the total pore volume; a lattice constant is 2.440 nm to2.455 nm; the content of non-framework aluminum is no more than 10% of total aluminum content; lattice collapse temperature is no less than 1060 DEG C; and a ratio of the amount of acid B to the amount of acid L is no less than 3.50. The catalyst has higher heavy oil conversion activity, low coke selectivity, and higher gasoline yield, liquefied gas yield, light oil yield and total liquid yield.

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.

The invention provides a catalytic cracking catalyst. The catalytic cracking catalyst contains a modified Y type molecular sieve containing magnesium, alumina containing an additive and clay. In the modified Y type molecular sieve containing magnesium, the content of rare earth oxide is 4 to 10 wt%; the content of magnesium oxide is 0.1 to 4 wt%; the content of sodium oxide is 0.3 to 0.8 wt%; a total pore volume is 0.33 to 0.39 mL/g; the pore volume of secondary pores with pore diameters of 2 to 100 nm in the modified Y type molecular sieve accounts for 10 to 30% of the total pore volume; a lattice constant is 2.440 nm to 2.455 nm; the content of non-framework aluminum in the modified Y type molecular sieve is no more than 20% of total aluminum content; and lattice collapse temperature isno less than 1045 DEG C. The modified Y type molecular sieve has higher heavy oil conversion activity, low coke selectivity, and higher diesel oil yield, light oil yield and total liquid yield.

The invention relates to a catalytic cracking catalyst, which contains a modified Y-type molecular sieve, an alumina binder and clay, wherein the modified Y-type molecular sieve contains 5-12 wt% of oxidized rare earth and 0.1-0.7 wt% of sodium oxide, and has the total pore volume of 0.33-0.39 mL/g, the pore volume of the secondary pores with the pore size of 2-100 nm in the modified Y-type molecular sieve accounts for 10-25% of the total pore volume, the unit cell constant is 2.440-2.455 nm, the non-framework aluminum content in the modified Y-type molecular sieve is not more than 20% of thetotal aluminum content, the lattice collapse temperature is not below 1050 DEG C, and a ratio of the amount of B acid to the amount of L acid is not less than 2.50. According to the present invention,the catalytic cracking catalyst has advantages of high heavy oil conversion activity, low coke selectivity, high diesel yield, high liquefied gas yield, high light-oil yield and high total liquid recovery.

The invention discloses a carrier and an application thereof. The carrier contains an aluminum-removal Y-type molecular sieve and a heatproof inorganic oxide. The invention also discloses a catalyst by employing the carrier and a preparation method and an application thereof. The invention further discloses a hydrocracking method of the catalyst. According to the molecular sieve in the carrier, the molecular sieve has high crystallization degree and abundant secondary pores, and has lower non-framework aluminum content. The catalyst is prepared by VIII metallic element and VIB metallic element loaded on the carrier, the catalyst displays better catalysis performance in a hydrocracking reaction, and can obtain good balance among catalytic activity, middle distillate selectivity and tail oil BMCI value.

The invention relates to a super-stable Y-type molecular sieve containing phosphorus and rare earth, wherein the Y-type molecular sieve contains 4-11 wt% of rare earth, 0.05-10 wt% of phosphorus and 0.1-0.7 wt% of sodium oxide, and has the pore volume of 0.33-0.39 mL/g, the pore volume of the pores with the pore size of 2-100 nm accounts for 15-30% of the total pore volume, the unit cell constantis 2.440-2.455 nm, the non-framework aluminum accounts for less than 20% of the total aluminum, the lattice collapse temperature is more than 1050 DEG C, and a ratio of the amount of B acid to the amount of L acid is not less than 2.50. The preparation method comprises: preparing a rare earth-containing Y-type molecular sieve having a conventional unit cell size, calcining for 4.5-7 h at a temperature of 350-480 DEG C under 30-90% by volume of steam atmosphere, carrying out phosphorus modification treatment, and carrying out a contact reaction with silicon tetrachloride gas. According to the present invention, the Y-type molecular sieve has advantages of good hydrothermal stability, high heavy oil conversion activity, low coke selectivity, high heavy oil conversion diesel yield, high liquefied gas yield and high total liquid recovery.

The invention provides a catalytic cracking catalyst. The catalytic cracking catalyst contains a modified Y type molecular sieve containing phosphorus and rare earth, alumina containing an additive and clay. The modified Y type molecular sieve containing phosphorus and rare earth comprises 4 to 11 wt% of rare earth, 0.05 to 10 wt% of phosphorus and 0.1 to 0.7 wt% of sodium oxide, and has a pore volume is 0.33 to 0.39 mL/g; the volume of pores with pore diameters of 2 to 100 nm accounts for 15 to 30% of a total pore volume; a lattice constant is 2.440 nm to 2.455 nm; the content of non-framework aluminum is no more than 20% of total aluminum content; lattice collapse temperature is more than 1050 DEG C; and a ratio of the amount of acid B to the amount of acid L is no less than 2.50. The catalyst has higher heavy oil cracking activity, good coke selectivity, and high gasoline yield, liquefied gas yield and total liquid yield.

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 relates to a catalytic cracking catalyst, a preparation method and applications thereof, wherein the catalyst comprises 10-50 wt% of a modified Y-type molecular sieve, 10-40 wt% of an alumina binder (calculated as alumina), and 10-80 wt% of clay (calculated as dry base), wherein the modified Y-type molecular sieve comprises 4-11 wt% of rare earth elements (calculated as oxide), 0.05-10 wt% of phosphorus (calculated as P2O5), not more than 0.5 wt% of sodium oxide and 0.1-5 wt% of an active element oxide, the active element is gallium and/or boron, the total pore volume of the modified Y-type molecular sieve is 0.36-0.48 mL/g, the pore volume of the secondary pores with a pore size of 2-100 nm accounts for 20-40% of the total pore volume, the cell constant is 2.440-2.455 nm, the lattice collapse temperature is not lower than 1060 DEG C, the non-skeleton aluminum accounts for not more than 10% of the total aluminum content, and a ratio of the amount of the acid B to the amount of the acid L in the amount of the strong acid of the modified Y-type molecular sieve is not less than 3.5. According to the invention, with the application of the catalyst in processing hydrogenation of LCO, the catalyst has high LCO conversion efficiency, low coke selectivity and high yield of gasoline rich in aromatic hydrocarbon.

The invention relates to a catalytic cracking catalyst, a preparation method and applications thereof, wherein the catalyst comprises 10-50 wt% of a modified Y-type molecular sieve, 10-40 wt% of an alumina binder (calculated as alumina), and 10-80 wt% of clay (calculated as dry base), wherein the modified Y-type molecular sieve comprises (calculated as the weight of the dry base of the modified Y-type molecular sieve) 5-12 wt% of rare earth elements (calculated as oxide), not more than 0.5 wt% of sodium oxide, 0.1-2.5 wt% of gallium oxide, and 0.1-2.5 wt% of zirconium oxide, the total pore volume of the modified Y-type molecular sieve is 0.36-0.48 mL/g, the pore volume of the secondary pores with a pore size of 2-100 nm accounts for 20-38% of the total pore volume, the cell constant is 2.440-2.455 nm, the lattice collapse temperature is not lower than 1060 DEG C, the non-skeleton aluminum accounts for not more than 10% of the total aluminum content, and a ratio of the amount of the acid B to the amount of the acid L in the amount of the strong acid is not less than 3.0. According to the invention, with the application of the catalyst in processing hydrogenation of LCO, the LCO conversion efficiency is high, the coke selectivity is low, the yield of gasoline rich in BTX aromatic hydrocarbon and the yield of propylene are high, and the concentration of propylene in liquefied gasis high.

The invention discloses a catalytic cracking catalyst as well as preparation and application thereof. The catalyst contains a modified Y-type molecular sieve, an aluminum oxide binder and clay; according to the modified Y-type molecular sieve, the content of magnesium oxide in the modified Y-type molecular sieve is 0.5-4.5 wt%; the content of sodium oxide is 0.1 wt%-0.5 wt%; the total pore volumeis 0.33 mL/g to 0.39 mL/g; the pore volume of secondary pores with the pore diameter of 2nm-100nm of the modified Y-type molecular sieve accounts for 10%-25% of the total pore volume, the lattice constant is 2.440 to 2.455nm, the content of non-skeleton aluminum in the modified Y-type molecular sieve is not higher than 20% of the total aluminum content, the lattice collapse temperature is not lower than 1040 DEG C, and the ratio of the amount of acid B to the amount of acid L in the total acid amount of the modified Y-type molecular sieve, which is measured by pyridine adsorption infrared method at 200 DEG C, is not lower than 2.30; when the molecular sieve is used for ultraviolet and visible light analysis, the ultraviolet and visible absorption spectrum is not absorbed at the wavelengthof 285-295 nm. The catalytic cracking catalyst is used for catalytic cracking of heavy oil, and has the advantages of low coke selectivity, high gasoline yield, high liquefied gas yield and high isohydrocarbon content in gasoline.

The invention provides a catalytic cracking catalyst. The catalytic cracking catalyst contains clay, an alumina binder and a modified Y type molecular sieve. The modified Y type molecular sieve 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 the total 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 DEG C; 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 7 h; carryingout a contact reaction with silicon tetrachloride; and carrying out acid treatment. The catalyst has higher heavy oil conversion activity, low coke selectivity, and higher gasoline yield, liquefied gas yield, light oil yield and total liquid yield.

The invention provides a catalytic cracking catalyst. The catalytic cracking catalyst contains a modified Y type molecular sieve, alumina containing an additive and clay. In the modified Y type molecular sieve, the content of rare earth oxide is 5 to 12 wt%; the content of sodium oxide is 0.1 to 0.7 wt%; a total pore volume is 0.33 to 0.39 mL/g; the pore volume of secondary pores with a pore diameter of 2 to 100 nm in the modified Y type molecular sieve accounts for 10 to 25% of the total pore volume; a lattice constant is 2.440 nm to 2.455 nm; the content of non-framework aluminum in the modified Y type molecular sieve is no more than 20% of total aluminum content; lattice collapse temperature is no less than 1050 DEG C; and a ratio of the amount of acid B to the amount of acid L is no less than 2.50. The catalyst has higher heavy oil conversion activity, low coke selectivity, and higher gasoline yield, liquefied gas yield, light oil yield and total liquid yield.