Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hydrocracking catalyst, preparation method and applications thereof

A hydrocracking and catalyst technology, applied in the direction of physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems that cannot meet actual needs and product quality is not high

Pending Publication Date: 2020-02-25
CHINA PETROLEUM & CHEM CORP +1
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the two methods, since the water vapor pressure increases sharply with the increase of temperature, in order to make the existing equipment can withstand the reaction pressure requirements, an open system is usually used, which makes the powder continuously increase with the water vapor during the hydrothermal process. Taken out of the system, the reaction system is in an unsteady state operation, so that the product quality is not high. Although the obtained molecular sieve has certain ring-opening activity, it still cannot meet the actual demand.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydrocracking catalyst, preparation method and applications thereof
  • Hydrocracking catalyst, preparation method and applications thereof
  • Hydrocracking catalyst, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0063] The preparation method of the carrier is well known to those skilled in the art, and the present disclosure has no special limitation. For example, the method may further include: mixing phosphorus-containing Y-type molecular sieves, Beta molecular sieves, heat-resistant inorganic oxides, solvents and optional additives, and then molding and drying to obtain the carrier. The forming method can adopt various conventional methods, such as tablet forming, rolling ball forming or extrusion forming and the like. The solvent is a common solvent in the catalyst molding process. When the method of extrusion molding is adopted, it is preferable to add an appropriate amount of additives to facilitate molding.

[0064] Optionally, the preparation method of the carrier includes: mixing phosphorus-containing Y-type molecular sieves, Beta molecular sieves, heat-resistant inorganic oxides, peptizers, and optional lubricants, and then forming, drying, and calcining to obtain the carri...

preparation Embodiment 1

[0086] Get NaY molecular sieve (produced by Sinopec Catalyst Changling Branch Company, trade name NaY, unit cell constant is 2.468nm, specific surface area is 680m 2 / g, the pore volume is 0.30ml / g, Na 2 O content is 13.0 wt%, Al 2 o 3 content is 22% by weight) 300g, add 2.0mol / L of (NH 4 ) 2 HPO 4 Aqueous solution, beating, the total amount of water used is 1000ml, filter, repeat the above process for the obtained filter cake three times, and then dry at 100°C for 1 hour to obtain the phosphorus-containing molecular sieve raw material, and the unit cell constant of the phosphorus-containing molecular sieve raw material is measured to be 2.468nm , the specific surface area is 590m 2 / g, the pore volume is 0.37ml / g, P 2 o 5 The content is 4.8% by weight, Na 2 The O content is 3.5% by weight.

[0087] Take 100 g of the above-mentioned phosphorus-containing molecular sieve raw material and put it into a hydrothermal treatment device, feed 100% water vapor, raise the temp...

preparation Embodiment 2

[0091] Take PSRY molecular sieve (Sinopec Catalyst Changling Branch, produced by the company, trade name PSRY, unit cell constant is 2.456nm, specific surface area is 620m 2 / g, the pore volume is 0.39ml / g, Na 2 O content is 2.2% by weight, P 2 o 5 The content is 1.5% by weight, Al 2 o 3 The content is 18% by weight) 300g, add deionized water for beating, the total amount of water is 1000ml, filter, and dry at 70°C for 2h to obtain a phosphorus-containing molecular sieve raw material with a water content of 35% by weight.

[0092] The above-mentioned phosphorus-containing molecular sieve raw material is crushed, sieved into 5-20 meshes (wherein 1mm~500mm particles account for 70% by weight of the total weight of the phosphorus-containing molecular sieve raw material), put into a hydrothermal treatment device, feed 100% steam, and heat up to 580°C, the internal pressure of the control device is 0.4MPa, constant hydrothermal treatment for 2 hours, and then the molecular siev...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Cell constantaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Pore volumeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a hydrocracking catalyst, a preparation method and applications thereof. The catalyst comprises (calculated as dry base), by weight, 45-85 wt% of a carrier (calculated as drybase), 5-40 wt% of a first metal component (calculated as metal oxide), and 1-15wt% of a second metal component (calculated as metal oxide), wherein the carrier comprises a phosphorus-containing Y-type molecular sieve, a Beta molecular sieve and a heat-resistant inorganic oxide according to a weight ratio of (0.03-6):(0.03-7):1, the first metal is a metal selected from a VIB group, the second metal component is a metal selected from a VIII group, the phosphorus content of the phosphorus-containing Y-type molecular sieve is 0.3-5 wt% (calculated as oxide), the pore volume is 0.2-0.95 mL / g, anda ratio of pyridine infrared B acid to L acid is 2-10. The catalyst of the invention has high hydrocracking reaction activity and cold flow performance.

Description

technical field [0001] The present disclosure relates to a hydrocracking catalyst and its preparation method and application. Background technique [0002] Industrial hydrocracking feedstocks include 350-540°C fractions such as VGO. The content of aromatics in heavy fractions is reduced, while the content of naphthenes is higher. This makes the ring-opening performance an effective means to improve the quality of tail oil and increase the smoke point of aviation fuel. However, because the β bond in the cycloalkane is in the vertical direction of the empty p orbital of the cycloalkane carbanion, the two are not easy to form a coplanar conformation, which makes the ring opening of the cycloalkane require stronger acidity. Molecular sieves have high acidity and are widely used in hydrocracking reactions. However, the structure of ordinary HY molecular sieves is unstable, and framework dealumination is prone to occur during the preparation and use of catalysts. The non-framewor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J29/08B01J29/78B01J35/10C10G11/05
CPCB01J29/084B01J29/7815C10G11/05B01J35/633Y02P20/52
Inventor 毛以朝龙湘云张润强赵阳赵广乐
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com