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Hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst and catalyst technology, applied in the direction of catalyst activation/preparation, catalyst carrier, chemical instrument and method, etc., can solve the problems of carrier pore structure influence, high cost, large amount of addition, etc.

Active Publication Date: 2020-07-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above patents, the mechanical strength and anti-wear performance of the catalyst are improved by adding fiber additives, but the cost is high and the amount added is large, and it will also affect the pore structure of the carrier

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Preparation of pseudo-boehmite

[0050] Mix and co-cook with aluminum hydroxide and sodium hydroxide to form a concentration of 345gAl 2 o 3 / L solution, and then diluted with 3.5wt% NaOH aqueous solution to prepare a caustic ratio of 1.20 and a concentration of 50 gAl 2 o 3 / L of sodium metaaluminate solution for use; prepare a C9 monoalkyl ether phosphate solution with a concentration of 0.2 g / mL for use; prepare D001 macroporous strongly acidic styrene-based cation exchange resin with a mesh number of 60 Content 50wt% suspension is ready for use.

[0051] Add 500mL deionized water into the 5000mL reactor as the bottom water, start stirring and heating, after the deionized water is heated to 50°C, add the above three materials into the reactor in parallel, and control the flow rate of sodium metaaluminate to 30mL / min, the flow rate of C9 monoalkyl ether phosphate ester solution is 6mL / min, by adjusting the flow rate of D001 macroporous strongly acidic styrene...

Embodiment 2

[0056] Other conditions are the same as in Example 1, except that the 60 purpose D001 macroporous strongly acidic styrenic cation exchange resin is changed into 80 purpose D002 macroporous strong acidic styrene cation exchange resin, and the pH value of the slurry in the reactor is changed to 8.5, which will give The slurry was aged at 75°C for 3 hours to obtain pseudoboehmite a-2, carrier Z-2 and catalyst C-2. The specific properties of the carrier are shown in Table 1, and the specific properties of the catalyst are shown in Table 3.

Embodiment 3

[0058] (1) Preparation of pseudo-boehmite

[0059] Other conditions are the same as in Example 1, except that C9 monoalkyl ether phosphate is changed to C9 alkyl phosphate, the flow rate is changed to 8mL / min, the flow rate of sodium metaaluminate is changed to 50mL / min, and the gelling temperature is adjusted to 70 °C, pseudo-boehmite a3 was obtained.

[0060] (2) Preparation of catalyst

[0061] Take 500g of the prepared a3 pseudo-boehmite raw material, add 10.5g of turnip powder and 17.5g of polyacrylamide, and then form into a ball, and roast the balled sample at 700°C for 3 hours to obtain the carrier Z3 with a particle size of 0.8-1.2mm ,, whose properties are shown in Table 1. Weigh 62.72g of phosphoric acid, add 1800mL of distilled water, then sequentially add 221.48g of molybdenum oxide and 71.84g of basic cobalt carbonate, heat and stir until completely dissolved, then dilute the solution to 2000mL with distilled water to obtain solution L2. Carrier Z3 was saturated...

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Abstract

The invention discloses a hydrogenation catalyst and a preparation method thereof; the catalyst comprises an active metal component and a carrier, wherein the carrier is phosphorus-containing alumina.The preparation method of the hydrogenation catalyst comprises the following steps: adding bottom water into a reactor; then adding a sodium metaaluminate solution, a phosphate surfactant solution and a cation exchange resin turbid liquid for reaction; aging the obtained slurry, adding cation exchange resin, separating the slurry, filtering and drying the separated slurry to obtain pseudo-boehmite, uniformly mixing the obtained pseudo-boehmite raw material with deionized water; molding, drying and roasting the material to obtain a carrier, and further introducing an active metal component toobtain the catalyst.

Description

technical field [0001] The invention relates to the field of petrochemical industry, and relates to a catalytic material and a preparation method thereof, in particular to a hydrogenation catalyst and a preparation method thereof. Background technique [0002] In recent years, crude oil has become heavier and the market demand for middle distillate products has been increasing, and the demand for residual fuel oil has gradually decreased. It has become more and more attractive to hydroconvert residual oil to produce high-quality products. The fluidized bed residue hydrogenation technology has dual functions. This technology can not only achieve good hydrogenation capacity, but also achieve a higher level of residue hydrogenation conversion. [0003] Pseudoboehmite is also known as monohydrate alumina, pseudo boehmite, with incomplete crystal water molecules, white colloid (wet product) or powder (dry product) with spatial network structure, crystal phase purity High, good p...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J23/882B01J32/00B01J35/10B01J37/02B01J37/08C10G45/20
CPCB01J23/883B01J23/882B01J23/002B01J21/04B01J37/0207B01J37/0018C10G45/20B01J2523/00C10G2300/202B01J35/615B01J35/635B01J2523/31B01J2523/68B01J2523/845B01J2523/847Y02P20/52
Inventor 朱慧红杨光刘璐杨涛其他发明人请求不公开姓名
Owner CHINA PETROLEUM & CHEM CORP
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