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Medium oil type hydrocracking catalyst and preparation method thereof

A hydrocracking and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, molecular sieve catalyst, etc., can solve the problems of low selectivity of middle distillate oil and low yield of liquid products, etc., to improve selectivity and liquid product yield, reduce the probability of deep cracking reaction, and improve the effect of pore structure

Pending Publication Date: 2021-01-15
SINOCHEM QUANZHOU PETROCHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems that the existing hydrocracking catalysts have low selectivity to middle distillates and low yield of liquid products, the present invention provides a novel hydrocracking catalyst and a preparation method thereof. The catalyst has high activity and high middle distillates Features of oil selectivity and high liquid yield

Method used

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  • Medium oil type hydrocracking catalyst and preparation method thereof
  • Medium oil type hydrocracking catalyst and preparation method thereof
  • Medium oil type hydrocracking catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Mix 66.67g of modified Y molecular sieve powder, 13.33g of β molecular sieve, 80.0g of amorphous silica-alumina powder and 96.0g of pseudo-boehmite powder evenly, then add 1.5wt% nitric acid solution, fully knead and extrude into 3-10 The clover-shaped particles with a length of mm and a diameter of 2 mm were dried at 140 °C for 10 hours, then heated to 560 °C under a nitrogen atmosphere and then switched to an air atmosphere for 6 hours to obtain the catalyst carrier S-1. Nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O) and enough tungsten trioxide (WO 3 ) Ammonium metatungstate ((NH 4 ) 10 W 12 o 41 · x h 2 O) Dispersed in deionized water, and then used to impregnate the obtained catalyst carrier S-1, then dried at 120 °C for 10 hours, and finally calcined at 550 °C for 6 hours to obtain catalyst C-1.

Embodiment 2

[0061] Mix 63.16g of modified Y molecular sieve powder, 12.63g of β molecular sieve, 4.21g of SSZ-32 molecular sieve, 80.0g of amorphous silica-alumina powder and 96.0g of pseudo-boehmite powder, then add 1.5wt% nitric acid solution, fully After kneading, extrude into clover-shaped particles with a length of 3-10 mm and a diameter of 2 mm, dry at 140 °C for 10 hours, then heat up to 560 °C under a nitrogen atmosphere, and then switch to an air atmosphere to roast for 6 hours to obtain a catalyst carrier S -2. Nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O) and enough tungsten trioxide (WO 3 ) Ammonium metatungstate ((NH 4 ) 10 W 12 o 41 · x h 2 O) dispersed in deionized water, and then used to impregnate the obtained catalyst carrier S-2, then dried at 120°C for 10 hours, and finally calcined at 550°C for 6 hours to obtain catalyst C-2.

Embodiment 3

[0063] Mix 64g of modified Y molecular sieve powder, 12.8g of β molecular sieve, 3.2g of SSZ-32 molecular sieve, 80.0g of amorphous silica-alumina powder and 96.0g of pseudo-boehmite powder, then add 1.5wt% nitric acid solution and knead fully Then extruded into clover-shaped particles with a length of 3-10 mm and a diameter of 2 mm, dried at 140 °C for 10 hours, then heated to 560 °C under a nitrogen atmosphere, and then switched to an air atmosphere for 6 hours to obtain the catalyst carrier S-3 . Nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O) and enough tungsten trioxide (WO 3 ) Ammonium metatungstate ((NH 4 ) 10 W 12 o 41 · x h 2 O) Dispersed in deionized water, then used to impregnate the obtained catalyst carrier S-3, then dried at 120 °C for 10 hours, and finally calcined at 550 °C for 6 hours to obtain catalyst C-3.

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Abstract

The invention discloses a medium oil type hydrocracking catalyst and a preparation method thereof. The hydrocracking catalyst is prepared by mixing a modified Y molecular sieve, a beta molecular sieveand an SSZ-32 molecular sieve, so as to solve the problems of low selectivity of middle distillate oil and low yield of a liquid product in the existing catalyst. And the output benefit of the mediumoil type hydrocracking process is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to a medium oil type hydrocracking catalyst and a preparation method thereof. Background technique [0002] The hydrocracking process is an oil refining process that converts high-boiling point raw materials into low-boiling naphtha, kerosene, diesel and other middle distillates. Compared with catalytic cracking, its raw material adaptability is high, and the yield of middle distillate is high and the quality is good. With the decline of the high-sulfur fuel oil market and the increasing social demand for clean transportation fuel oil, the hydrocracking process has become the core process of modern refineries. [0003] Hydrocracking catalysts are typical bifunctional catalysts, usually including a bifunctional center: one is a metal center, generally composed of a VIB group metal or a VIB group and VIII group binary metal system, which has the function of h...

Claims

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Application Information

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IPC IPC(8): B01J29/08B01J29/80B01J35/10B01J37/02C10G47/20
CPCB01J29/80B01J29/084B01J37/0201C10G47/20B01J29/7892B01J29/7815B01J29/166B01J2229/18B01J2229/14B01J2229/38C10G2400/04B01J35/612B01J35/647
Inventor 肖文灿刘长坤范文青
Owner SINOCHEM QUANZHOU PETROCHEM CO LTD
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