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A hydrogenation catalyst shaped carrier

A hydrogenation catalyst and carrier technology, which is applied in molecular sieve catalysts, physical/chemical process catalysts, naphtha catalytic reforming, etc., can solve problems such as adverse effects on catalyst performance, affecting the characteristics of active components, etc., to improve macromolecular reactions performance, reduce preparation costs, and reduce carbon emissions

Active Publication Date: 2020-08-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] In addition to the above two mainstream methods, there are: increasing the calcination temperature of the carrier; introducing water vapor during the calcination process, etc. However, these patents inevitably change the phase of the alumina carrier while increasing the pore size of the carrier. structure, thereby affecting the characteristics of the active components and adversely affecting the performance of the catalyst

Method used

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  • A hydrogenation catalyst shaped carrier

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0072] A specific embodiment, the preparation method of the hydrogenation catalyst shaped carrier comprises: mixing the carrier precursor with a superabsorbent compound and water and extruding to obtain a wet strip of the carrier precursor; wherein, the superabsorbent compound The water absorption rate is 250-1500, and the particle size of the superabsorbent compound is less than 100 microns in a dry state (for example, at 80°C for 2 hours); the wet strip of the obtained carrier precursor is sequentially dried and roasted to obtain the hydrogenation catalyst molding carrier.

[0073] Super water-absorbing compound is a new type of polymer material, which can absorb water hundreds to thousands of times its own weight, non-toxic, harmless, and non-polluting; it has extremely strong water absorption capacity and high water retention capacity, and the absorbed water cannot be absorbed Extruded by simple physical method, and can release and absorb water repeatedly. The present dis...

Embodiment 1

[0101] Add 5g of xanthan gum powder to a 250ml three-neck flask, measure 50ml of water and add it together, adjust the pH value of the system to 11-12, heat in a constant temperature water bath at 70°C, activate for 1 hour, cool down to about 45°C for later use. Neutralize 25 g of acrylic acid to a pH of 7 with a 30% NaOH solution in an ice-water bath. Put neutralized acrylic acid in N 2 Add dropwise to the xanthan gum solution under protection, add 0.35g initiator potassium persulfate at the same time, then add 0.1g crosslinking agent N,N'-methylenebisacrylamide, raise the temperature to 55°C, and react for 2h. The product is soaked in alcohol, cut into small particles with scissors, then put into a constant temperature oven, dried at 80°C for 2 hours, and then ground through a 200-mesh sieve to obtain a super absorbent resin. The water absorption ratio of the super absorbent resin was measured Q is 300.

[0102] Take 0.5g of superabsorbent resin, add 400mL of deionized water...

Embodiment 2

[0105] Add 5g of xanthan gum powder to a 250ml three-neck flask, measure 50ml of water and add it together, adjust the pH value of the system to 11-12, heat in a constant temperature water bath at 70°C, activate for 1 hour, cool down to about 45°C for later use. Neutralize 25 g of acrylic acid to a pH of 7 with a 30% NaOH solution in an ice-water bath. Put neutralized acrylic acid in N 2 Add dropwise to the xanthan gum solution under protection, add 0.35g initiator potassium persulfate at the same time, then add 0.15g crosslinking agent N,N'-methylenebisacrylamide, raise the temperature to 55°C, and react for 2h. The product is soaked in alcohol, cut into small particles with scissors, then put into a constant temperature oven, dried at 80°C for 2 hours, and then ground through a 200-mesh sieve to obtain a super absorbent resin. The water absorption ratio of the super absorbent resin was measured Q is 800.

[0106] Take 0.5g of superabsorbent resin, add 600mL of deionized wa...

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Abstract

The present disclosure provides a hydrogenation catalyst molded carrier, the pore characteristic index of the hydrogenation catalyst molded carrier is 19-50; wherein, the pore characteristic index is calculated using Formula I, and the Formula I is: TI=0.1S / [1+5ABS(1‑V)]+logR; where, TI is the pore characteristic index, TI is a dimensionless value; S is the specific surface area of ​​the hydrogenation catalyst molded carrier, in meters 2 / g; V is the pore volume of the hydrogenation catalyst shaped carrier, in ml / g; R is the pore diameter of the hydrogenation catalyst shaped carrier, in angstroms; the ABS is an absolute value function. The hydrogenation catalyst shaped carrier provided by the present disclosure is used to prepare a hydrogenation catalyst and can increase the metal deposition amount and deposition depth of the hydrogenation catalyst.

Description

technical field [0001] The present disclosure relates to a hydrogenation catalyst shaped carrier. Background technique [0002] In recent years, the trend of heavy and inferior crude oil has become increasingly obvious worldwide. At the same time, the demand for liquid fuel oil and reforming and steam cracking raw materials has continued to increase. This promotes the rapid development of heavy distillate processing technology, and catalyst is the most important and key factor. [0003] Catalysts used for the conversion of heavy oil or macromolecules require not only a large pore size and sufficient pore volume, but also a concentrated pore size distribution of the pores in the catalyst. [0004] Since catalysts used for the conversion of heavy oil or macromolecules are generally obtained by loading catalytically active components on porous carriers, the preparation has larger pore diameter and pore volume, and has a higher concentration of pore diameters. The key to a hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/78C10G35/06
CPCC10G35/06B01J29/78C10G2300/202C10G2300/70B01J35/64B01J35/638B01J35/635B01J35/615
Inventor 董松涛辛靖杨清河胡志海
Owner CHINA PETROLEUM & CHEM CORP