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Fluidized bed hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst and ebullating bed technology, which is applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as complex processes, improve surface acidity, reduce waste water generation, and optimize dispersion. Effect

Active Publication Date: 2021-06-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the patent gelation, the large pore volume is obtained by adding organic templates and other substances, and the process is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] 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 sodium metaaluminate solution for use; prepare a C9 monoalkyl ether phosphate solution (pKa=4.3, HLB=7) with a concentration of 0.2g / mL for use; use 60 mesh D001 macroporous strong acid The styrene-based cation exchange resin is prepared into a suspension with a solid content of 50wt% for use.

[0067] 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-based cation exchange resi...

Embodiment 2

[0072] 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 h to obtain pseudo-boehmite a-2, carrier Z2 and catalyst C2. The specific properties of the catalyst are shown in Table 1.

Embodiment 3

[0074] Other conditions are the same as in Example 1, except that C9 monoalkyl ether phosphate is changed to C9 alkyl phosphate (pKa=4.8, HLB=5), the flow rate is changed to 8mL / min, and the flow rate of sodium metaaluminate is changed to 50mL / min, and the gelling temperature was adjusted to 70°C to obtain pseudo-boehmite a3.

[0075] Take 800g of manufactured a3 pseudo-boehmite raw material, add 12.5g of polyacrylamide, and then shape it into a ball. The balled sample is dried at 120°C for 4 hours and calcined at 550°C for 3 hours to obtain carrier Z3 with a particle size of 0.8-1.2mm.

[0076] Weigh 5.59 g of zinc nitrate, add 250 mL of distilled water, stir to dissolve, and set the volume to 300 mL to obtain the first metal solution M-2.

[0077] Weigh 74.30g of phosphoric acid, add 900mL of distilled water, then add 201.79g of molybdenum oxide and 86.32g of basic nickel carbonate in sequence, heat and stir until completely dissolved, then dilute the solution to 1000mL wit...

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PUM

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Abstract

The invention discloses a fluidized bed hydrogenation catalyst and a preparation method thereof. The preparation method comprises the following steps: (1) preparing an alumina carrier; (2) mixing the alumina carrier with a first active metal solution, and drying to obtain a catalyst precursor A; and (3) introducing a second active metal component to the catalyst precursor A, and drying and roasting to obtain the catalyst. According to the preparation method of the fluidized bed hydrogenation catalyst, active metal is added in the preparation of the carrier for effective adsorption and occupation, so that the dispersion of the metal is further optimized, and the fluidized bed hydrogenation catalyst which is high in unit surface acid content, wear-resistant and good in hydrodesulfurization performance is prepared.

Description

technical field [0001] The invention belongs to the technical field of petroleum refining, and relates to a method for preparing a hydrogenation catalyst, in particular to a method for preparing an ebullated bed hydrogenation catalyst. Background technique [0002] In recent years, oil resources have gradually decreased, and crude oil has continued to become heavy and inferior. At the same time, the demand for light oil products has increased year by year due to economic development. The imported crude oil of various countries is mainly low-cost high-sulfur crude oil. How to improve the processing capacity of high-sulfur crude oil The problem. At the same time, environmental protection regulations are becoming increasingly stringent. How to effectively remove sulfur from high-sulfur crude oil and reduce sulfur in products is a problem that the oil refining industry needs to solve. During crude oil processing, the unconverted residual oil is rich in sulfur, and these high-su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/04B01J27/19B01J35/00B01J35/02B01J35/10B01J37/02B01J37/30C10G45/08
CPCB01J37/30B01J37/024B01J27/19B01J21/04C10G45/08C10G2300/202B01J35/394B01J35/30B01J35/40B01J35/635B01J35/615Y02P20/52
Inventor 朱慧红金浩吕振辉刘璐杨光杨涛
Owner CHINA PETROLEUM & CHEM CORP
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