A kind of hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst, a first-class technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of separate preparation or purchase of alumina fibers, and achieve improved peptization and good The effect of high mechanical properties and lateral compressive strength

Active Publication Date: 2022-07-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical composition of the components added by this method is the same as that of the carrier itself, and no additional substances are introduced, but the alumina fiber needs to be prepared or purchased separately

Method used

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  • A kind of hydrogenation catalyst and preparation method thereof
  • A kind of hydrogenation catalyst and preparation method thereof
  • A kind of hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of pseudo-boehmite filter cake

[0041] In the primary reactor, add the bottom water of 1 / 5 of the reactor volume, and then add the caustic ratio of 1.35 and the concentration of 100gAl in cocurrent. 2 O 3 / L sodium metaaluminate solution and 50gAl 2 O 3 / L of aluminum sulfate solution is reacted, the pH value of the control system is 4.0, and the reaction temperature is controlled to be 60 ° C. The reaction effluent is divided into two streams, which are the first stream and the second stream respectively, and the first stream accounts for the reaction outflow. The bottom water was added to the secondary reaction kettle, the first material stream and 5.0wt% sodium carbonate solution entered the secondary reaction kettle, the pH value of the control system was 10.0, and the temperature was 90 ° C; the secondary reaction kettle obtained The reaction product was aged at 100°C for 0.5h, and filtered to obtain primary filtrate and primary filter cake; the...

Embodiment 2

[0047] Other conditions are the same as in Example 1, only the bottom water of the primary reactor is adjusted to 1 / 4 of the volume of the reactor, the pH value of the secondary reactor is adjusted to 7.0, the aging temperature of the secondary aging device is adjusted to 80 ° C, and the wet The dry basis of the filter cake material was adjusted to 28wt%, and the solid weight of polyethylene glycol 200 was changed to 7.99g to obtain catalyst B. The physicochemical properties of the obtained catalyst are listed in Table 1.

Embodiment 3

[0049] Other conditions are the same as in Example 1, except that the bottom water of the primary reactor is adjusted to 1 / 3 of the volume of the reactor, the aging temperature of the primary aging device is adjusted to 60°C, and the aging time is adjusted to 2.0h. The amount taken was changed to 850g, the weight of industrial pseudo-boehmite raw materials was changed to 150g, the weight of polyethylene glycol 200 was changed to polyethylene glycol 400, the mass of molybdenum oxide was changed to 100.95g, and the quality of basic nickel carbonate was changed to 34.37g , the mass of phosphoric acid was changed to 26.55g, and catalyst C was obtained, and the physicochemical properties of the obtained catalyst were listed in Table 1.

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Abstract

The invention discloses a hydrogenation catalyst and a preparation method thereof. The catalyst preparation method first prepares a wet filter cake material, then mixes it with an industrial pseudo-boehmite raw material, adds an extrusion aid and kneads it, and then it is dried and roasted to obtain hydrogenation Catalyst carrier; after further supporting active metal components, drying and calcining to obtain a hydrogenation catalyst. The hydrogenation catalyst prepared by the method of the invention has good mechanical properties, high strength and good wear resistance, and is especially suitable for the fluidized bed hydrogenation process. The preparation method of the hydrogenation catalyst has simple process and low energy consumption, and is suitable for large-scale production of the fluidized bed catalyst.

Description

technical field [0001] The invention belongs to the field of catalytic materials, in particular to a hydrogenation catalyst and a preparation method thereof. Background technique [0002] Heavy oil or residual oil contains a large amount of macromolecular aromatic hydrocarbons. In the process of hydrotreating, the catalyst needs to have larger pores to meet the requirement of macromolecular aromatic hydrocarbons entering the reaction active zone. Usually macroporous pseudo-boehmite is used as the raw material of the residue hydrogenation catalyst carrier, but the carrier prepared by macroporous material has poor mechanical properties, low compressive strength, and is increasingly important in the resid hydrogenation fluidized bed treatment process. The back-mixed flow also puts forward higher requirements for the wear resistance of the catalyst. However, the pseudo-boehmite with macroporous structure prepared by the current pseudo-boehmite production process has a low pepti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/188B01J35/10B01J37/02B01J37/08C10G45/08
CPCB01J35/1019B01J35/1042B01J35/1061B01J37/0018B01J37/0203B01J37/082B01J35/0066B01J35/109C10G45/08C10G2300/202C10G2300/205C10G2300/201Y02P20/52
Inventor 刘璐朱慧红金浩杨光杨涛
Owner CHINA PETROLEUM & CHEM CORP
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