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

Extremely low acidity USY and homogeneous, amorphous silica-alumina hydrocracking catalyst and process

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems affecting catalytic selectivity, etc.

Inactive Publication Date: 2010-02-03
CHEVROU USA INC
View PDF20 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition to various catalyst compositions, preparation techniques were found to affect catalytic selectivity

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
  • Extremely low acidity USY and homogeneous, amorphous silica-alumina hydrocracking catalyst and process
  • Extremely low acidity USY and homogeneous, amorphous silica-alumina hydrocracking catalyst and process
  • Extremely low acidity USY and homogeneous, amorphous silica-alumina hydrocracking catalyst and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Example 1 : USY zeolite

[0074] The properties of acceptable USY zeolites are shown in the table below:

[0075] Table 1

[0076] Physical properties of highly dealuminated USY

[0077] Compliant USY#1

Qualified USY#2

SiO 2 / Al 2 o 3 The molar ratio of

Na 2 O, wt%

surface area, m 2 / g

Micropore volume, cc / g

Total pore volume, cc / g

Unit cell size, Angstroms

% crystallinity

alpha

Bronsted acidity measured by FT-IR, μmol / g

88

＜0.05

686

0.25

0.51

24.24

-

1.1

9

126

0.1

690

0.27

0.54

24.25

99

1.4

15

[0078] Acceptable USY zeolites are bulk SiO 2 / Al 2 o 3 Highly dealuminated and stable with a ratio higher than 80. The unit cell size measured by powder X-ray diffraction showed a unit cell size of 24.25 Angstroms or less. In addition, we found that USY with very low Bronsted acidity is import...

Embodiment 2

[0080] Example 2 : Uniform cogel silica-alumina

[0081] The following three homogeneous cogel silica-alumina samples were used to prepare the catalysts. The silica-alumina body has a Si / Al atomic ratio of about 1.0. The composition is homogeneous in that the surface Si / Al ratio measured by XPS matches the bulk composition, with less than 10% by weight of a separate crystalline alumina phase detected by XRD. The properties of this homogeneous cogel silica-alumina are shown in the table below:

[0082] Table 2

[0083] Physical properties of homogeneous cogel silica-alumina

[0084]

[0085] (a): BET measurement after activation at 1000°F for 1 hour.

[0086] (b): Measured after activation at 1000°F for 1 hour.

Embodiment 3

[0087] Example 3 : Preparation of NiW Hydrocracking Catalyst with Homogeneous Cogel Silica-Alumina (Catalyst A - Base Case)

[0088] A base case hydrocracking catalyst comprising homogeneous silica-alumina sample #1 in Table 2 was prepared as follows. 75 parts of silica-alumina powder #1 (synthesized according to patent application XXXX) and 25 parts of crystalline alumina powder (from Vista) were thoroughly mixed. To this mixture was added dilute HNO 3 acid and sufficient deionized water to form an extrudable paste (3 wt% HNO 3 ). These weights are based on 100% solids. The paste was extruded in a 1 / 16" cylinder and dried overnight at 250°F. The dried extrudate was fired at 1100°F for 1 hour with excess dry air blown in and cooled to room temperature.

[0089] Ni and W were impregnated with a solution containing ammonium metatungstate and nickel nitrate to a target metal loading of 4 wt% NiO and 28 wt% WO in the finished catalyst 3 . The total volume of the solution w...

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
unit cell dimensionaaaaaaaaaa
Bronsted acidityaaaaaaaaaa
unit cell dimensionaaaaaaaaaa
Login to View More

Abstract

A catalyst composition comprising a minor amount of a low acidity, highly dealuminated ultra stable Y zeolite having an alpha value of less than about 5, preferable less than about 3 and Broensted acidity measured by FT-IR from about 1 to about 20, preferably from about 1-10 micro mole / g, a homogeneous, amorphous silica-alumina cracking component having an SB ratio of from about 0.7 to about 1.3,wherein a crystalline alumina phase is present in an amount of no greater than about 10%, preferably no greater than 5% and a catalytic amount of hydrogenation component selected from the group consisting of a Group VI metal, a Group VIII metal, and mixtures thereof is disclosed. The present invention provides for a process for converting hydrocarbonaceous oils comprising contacting the hydrocarbonaceous oils with the catalyst under suitable hydrocarbon conversion conditions. Such processes in include, but are not limited to, single stage hydrocracking, two-stage hydrocracking, series-flow hydrocracking, mild hydrocracking, lube hydrocracking, hydrotreating, lube hydrofinishing, hydrodesulphurization, hydrodenitrification, catalytic dewaxing and catalytic cracking.

Description

technical field [0001] This invention relates to catalysts and methods of using the catalysts to convert hydrocarbon oils to products of lower average molecular weight and lower average boiling point. Background technique [0002] Modern hydrocracking catalysts are generally based on zeolitic materials because of their superiority over earlier refractory oxide-based materials such as silica-alumina, magnesia, and alumina. Amorphous catalysts are less active but more selective to produce products in the distillate range, while zeolite catalysts are more active but less selective to distillates, especially heavy fractions. The present invention provides a hydrocracking process with overall catalytic performance superior to amorphous silica-alumina cogel catalysts while maintaining the excellent heavy fraction selectivity and unconverted oil quality of amorphous cogel catalysts. [0003] In prior art co-gel hydroprocessing catalysts, various combinations of metals selected fro...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/16C10G47/18C10G47/20B01J29/10B01J29/12B01J29/16B01J29/08C10G45/06C10G45/08C10G45/10C10G45/12C10G45/62C10G45/64
CPCB01J29/166C10G45/10B01J29/126C10G47/18B01J2229/16C10G45/08C10G2400/10B01J2229/42C10G45/12C10G45/06C10G45/64B01J29/084C10G45/62C10G2300/1059C10G47/20
Inventor H·K·C·蒂姆肯
Owner CHEVROU USA INC
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