A kind of residual oil hydrogenation catalyst and preparation method thereof

A residue hydrogenation and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as poor mechanical strength, improve dispersibility, simple preparation process, and facilitate industrialization The effect of mass production

Active Publication Date: 2016-11-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, activated carbon has poor mechanical strength as a catalyst carrier.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh 100 grams of alumina powder, mix with 5.2 grams of activated carbon, add 2 grams of acetic acid, 1 gram of citric acid, and 3 grams of scallop powder, extrude it on an extruder, bake it at 100 ° C for 3 hours, and then heat it at 800 ° C Calcined for 2 h in a nitrogen atmosphere to prepare the catalyst carrier S1. The obtained carrier S1 is impregnated with a mixture of nickel hypophosphite, ammonium molybdate and cobalt nitrate, dried at 110°C, roasted in a nitrogen atmosphere at 500°C for 2 hours, and then vulcanized according to the methods commonly used in the field of hydrogenation. Get the catalyst, denoted as C1, containing 2% Ni in the catalyst 2 P, 7% MoO 3 , 4% CoO. The weight of alumina in the catalyst carrier is 95%, and the weight of activated carbon is 5%.

Embodiment 2

[0016] Weigh 100 grams of alumina powder, mix with 11.1 grams of activated carbon, add 2 grams of acetic acid, 1 gram of citric acid, and 3 grams of asparagus powder, extrude it on an extruder, bake it at 110 ° C for 2 hours, and then heat it at 700 ° C Calcined in a nitrogen atmosphere for 2 hours to prepare the catalyst carrier S2. The obtained carrier S2 is impregnated with a mixture of nickel hypophosphite, ammonium molybdate and nickel nitrate, dried at 110°C, roasted at 550°C in a nitrogen atmosphere for 2 hours, and then vulcanized according to the methods commonly used in the field of hydrogenation. Get the catalyst, denoted as C2, containing 6% Ni in the catalyst 2 P, 5% MoO 3 , 2% NiO. The weight of alumina in the catalyst carrier is 90%, and the weight of activated carbon is 10%.

Embodiment 3

[0018] Weigh 100 grams of alumina powder, mix with 25 grams of activated carbon, add 2 grams of acetic acid, 1 gram of citric acid, and 3 grams of scallop powder, extrude it on an extruder, bake it at 100 ° C for 3 hours, and then heat it at 800 ° C Calcined for 2 h in a nitrogen atmosphere to prepare the catalyst carrier S3. The obtained carrier S3 is impregnated with a mixed solution of nickel hypophosphite, ammonium molybdate and cobalt nitrate, dried at 110°C, roasted in a nitrogen protection atmosphere at 450°C for 2 hours, and then vulcanized according to a method commonly used in the field of hydrogenation. Get the catalyst, denoted as C3, containing 6% Ni in the catalyst 2 P, 4% MoO 3 , 3% NiO. The weight of alumina in the catalyst carrier is 80%, and the weight of activated carbon is 20%.

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Abstract

The invention relates to a residual oil hydrogenation catalyst and a preparation method thereof; 1) a mixed body of alumina and activated carbon is used as a carrier, the weight of activated carbon in the carrier accounts for 5-35%, and the weight of alumina accounts for 65-95%; 2) the activity of the catalyst is Component content is based on the total weight of the catalyst as 100%, Ni 2 P is 1~14%, MoO 3 and / or WO 3 3-8%, and / or CoO and / or NiO 1-5%, the rest is carrier; 3) Pore volume is 0.3-1.0ml / g; 4) Specific surface is 50-280m 2 / g; A small amount of activated carbon was introduced into the alumina to reduce the Ni 2 The reaction of P active component with alumina during the formation process improves its dispersibility and makes full use of Ni 2 The high activity of P and the carrier advantages of alumina-activated carbon kneading body can further improve the catalyst's ability to desulfurize, carbon residue and other impurities.

Description

technical field [0001] The invention relates to a highly active residual oil hydrogenation catalyst and a preparation method thereof. Background technique [0002] The shortage and inferior quality of global oil resources have led to the continuous increase in the proportion of heavy crude oil and high-sulfur crude oil in the crude oil market; at the same time, with the rapid development of my country's economy and increasingly stringent environmental protection regulations, the market demand for clean oil products is also rapidly increasing. Increase. Therefore, lightening and high-quality heavy oil is an important task that needs to be solved urgently. Residual oil hydrotreating technology is an effective means to solve the above problems. [0003] In recent years, compared with the Co, Mo, Ni and W series catalysts used in the industry, catalytic scientists are constantly trying to develop new catalytic materials for oil hydrotreating, and transition metal phosphides are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/19
Inventor 张志国赵元生赵愉生马安刘元东周志远范建光崔瑞利葛少辉于双林余颖龙
Owner PETROCHINA CO LTD
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