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Extremely low acidity ultrastable Y zeolite catalyst composition and process

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

Inactive Publication Date: 2010-02-03
CHEVROU USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition to various catalyst compositions, preparation techniques were found to affect catalytic selectivity

Method used

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  • Extremely low acidity ultrastable Y zeolite catalyst composition and process
  • Extremely low acidity ultrastable Y zeolite catalyst composition and process
  • Extremely low acidity ultrastable Y zeolite catalyst composition and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 4

[0072] Examples 1 to 4 : Comparison of USY zeolite

[0073] Four USY zeolites were used for catalyst preparation. The properties of these USY zeolites are shown in the table below:

[0074] Table 1

[0075] Physical properties of highly dealuminated USY

[0076] USY#1

Example 1

Not the invention

USY#2

Example 2

this invention

USY#3

Example 3

this invention

USY#4

Example 4

this invention

SiO 2 / Al 2 o 3 Molar ratio (bulk)

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

94

＜0.05

772

0.21

0.51

24.23

-

9.1

80

92

＜0.05

652

0.20

0.50

24.23

80

1.0

3

92

0.14

712

0.20

0.54

24.25

106

2.4

8

...

Embodiment 5

[0079] Example 5 : Preparation of NiW USY Hydrocracking Catalyst (Catalyst A-Basic Case)

[0080] A base case hydrocracking catalyst comprising USY #1 in Table 1 was prepared as follows. 10 parts of USY, 70 parts of silica-alumina powder (Siral-40 from SasolCondea) and 20 parts of pseudo-boehmite alumina powder 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.

[0081] 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 was matched to the 100% water pore volume of the base extrudate sample (incipient we...

Embodiment 6

[0082] Example 6 : Preparation of NiW hydrocracking catalysts (catalysts B, C, E and F) using various USY samples

[0083] Catalyst B (a NiW catalyst suitable for use in the present invention comprising USY#2) was prepared in a similar manner to Catalyst A. For Catalyst B, the base extrudate was prepared with 10 parts of USY #2 in Table 1, 65 parts of silica-alumina powder, and 25 parts of pseudo-boehmite alumina powder. Except for the source of USY, the other ingredients are the same as Catalyst A. Ni and W were then loaded by impregnation as described in Example 5. Target metal loading is 4wt% NiO and 28wt% WO 3 . The physical properties of catalyst B are shown in Table 3.

[0084] Catalyst C (a NiW catalyst suitable for use in the present invention comprising USY#3) was prepared in almost the same manner as Catalyst B. For Catalyst C, USY #3 was used to prepare base extrudates. The physical properties of catalysts B and C are shown in Table 3. The physical properti...

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Abstract

Disclosed is a catalyst composition comprising a low acidity, highly dealuminated ultra stable Y zeolite having an alpha value of less than about 3 and Broensted acidity measured by FT-IR from about 1to about 20, preferably from about 1-10, micro mole / g, an amorphous cracking component 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] Of the many hydroconversion processes known in the art, hydrocracking is becoming increasingly important because it provides product flexibility as well as product quality. Since heavier feedstocks can be hydrocracked, apparently more attention has been devoted to the development of hydrocracking catalysts. [0003] 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 hydrocr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/16C10G47/18C10G47/20B01J29/10B01J29/12B01J29/16B01J29/08
CPCB01J29/166B01J29/084B01J2229/16C10G47/16C10G47/20
Inventor H·K·C·蒂姆肯L·M·布尔T·V·哈里斯
Owner CHEVROU USA INC