Light cycle oil hydrocracking catalyst and preparation method thereof

A technology for hydrocracking and light cycle oil, which is applied in the direction of physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc. It can solve the problems of low cracking activity and poor nitrogen resistance, and achieve improved nitrogen resistance and cracking The effect of activity, reducing toxicity, and saving start-up time

Inactive Publication Date: 2017-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is to provide a new catalyst for light cycle oil hydrocracking in order to overcome the problems of low cracking activity and poor nitrogen resistance of traditional hydrocracking catalysts for light cycle oil

Method used

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  • Light cycle oil hydrocracking catalyst and preparation method thereof
  • Light cycle oil hydrocracking catalyst and preparation method thereof
  • Light cycle oil hydrocracking catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add USY zeolite (purchased from Zibo, Shandong, with a silicon-aluminum ratio of 10), amorphous silica-alumina (purchased from Zibo, Shandong) and pseudo-boehmite (purchased from Zibo, Shandong) with a dry basis of 40g, 30g, and 10g into the mixer respectively until uniform, then add 3g sage powder, 5g volume ratio 1:1HNO to the mixture 3 solution and 40g deionized water, and grind evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (diameter 1.7mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles of uniform size (1.7×4.0mm) for use.

[0035] Impregnate the carrier particles with a solution containing ammonium tetrathiomolybdate and ammonium tetrathiotungstate at 40°C, and the contents of molybdenum sulfide and tungsten sulfide contained in the impregnation solution are 5% and 9% of the dry weight of the carrier, After aging for 8 hours and drying, impre...

Embodiment 2

[0038] Add USY zeolite (purchased from Zibo, Shandong, with a silicon-aluminum ratio of 10), amorphous silica-alumina (purchased from Zibo, Shandong) and pseudo-boehmite (purchased from Zibo, Shandong) with a dry basis of 40g, 30g, and 10g into the mixer respectively until uniform, then add 3g sage powder, 5g volume ratio 1:1HNO to the mixture 3solution and 40g deionized water, and grind evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (diameter 1.7mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles of uniform size (1.7×4.0mm) for use.

[0039] Impregnate the carrier particles with a solution containing ammonium tetrathiomolybdate and ammonium tetrathiotungstate at 40°C, and the contents of molybdenum sulfide and tungsten sulfide contained in the impregnation solution are 5% and 9% of the dry weight of the carrier, After aging for 8 hours and drying, impreg...

Embodiment 3

[0042] Beta zeolite (purchased from Zibo, Shandong, with a silicon-aluminum ratio of 13), amorphous silica-alumina (purchased from Zibo, Shandong) and pseudo-boehmite (purchased from Zibo, Shandong) with a dry basis of 40 g, 30 g, and 10 g were added to the mixer until uniform, then add 3g sage powder, 5g volume ratio 1:1HNO to the mixture 3 solution and 40g deionized water, and grind evenly to make a dough suitable for extrusion. It is extruded through a die and is in the shape of a slender cylinder (diameter 1.7mm). After drying at 120°C, it is baked at 550°C for 4 hours, and then it is cut into carrier particles of uniform size (1.7×4.0mm) for use.

[0043] Impregnate the carrier particles with a solution containing ammonium tetrathiomolybdate and ammonium tetrathiotungstate at 40°C, and the contents of molybdenum sulfide and tungsten sulfide contained in the impregnation solution are 5% and 9% of the dry weight of the carrier, After aging for 8 hours and drying, impregnat...

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Abstract

The invention relates to a light cycle oil hydrocracking catalyst and a preparation method thereof. The problems of low light cycle oil cracking activity and poor nitrogen resistance of traditional hydrocracking catalysts are mainly solved in the invention. The catalyst comprises, by weight, 15-35% of at least one of FAU zeolite, BEA zeolite and MFI zeolite, 5-16% of amorphous silica-alumina, 10-20% of pseudo-boehmite, 5-10% of molybdenum sulfide, 9-16% of tungsten sulfide and 3-6% of at least one active component selected from nickel phosphate and cobalt phosphate. The light cycle oil hydrocracking catalyst adopting the above technical scheme well solves the problems, has the advantages of no precurng, high cracking activity, high nitrogen resistance, and flexible and controllable product distribution, and can be used in the field of hydrogenation refining and chemical engineering.

Description

technical field [0001] The invention relates to a light cycle oil hydrocracking catalyst and a preparation method thereof. Background technique [0002] Hydrocracking technology has the characteristics of strong adaptability of raw materials, great flexibility of product schemes, high selectivity of target products, good product quality, and high added value. It can directly convert various heavy and low-quality raw materials into clean fuel oil and high-quality chemical raw materials. It has become one of the most important heavy oil deep processing techniques in modern oil refining and petrochemical industries, and has been increasingly widely used at home and abroad. Hydrocracking catalysts are generally dual-functional catalysts with low nitrogen resistance and strict requirements on the nitrogen content in the raw material. If they run for a period of time beyond the specified value, the activity of the cracking catalyst will be significantly reduced. Therefore, for hyd...

Claims

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Application Information

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IPC IPC(8): B01J29/076B01J29/78C10G47/20
Inventor 孔德金李旭光郑均林姜向东
Owner CHINA PETROLEUM & CHEM CORP
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