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Preparing method of wearing-resistant catalyst

The technology of catalyst and auxiliary agent is applied in the field of preparation of wear-resistant catalyst, which can solve the problems of failure to improve the anti-wear performance of the catalyst, the anti-wear performance of the catalyst is not very good, etc., and achieve the effect of reducing the catalyst wear and the wear rate.

Inactive Publication Date: 2012-08-15
常云峰 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In another U.S. Patent US 7,442,664, Zon and Hilgers try to use polyaluminum chloride as a binder to improve the attrition resistance of the FCC catalyst, but the attrition resistance of the prepared catalyst is not very good, and the attrition coefficient (DI) greater than or equal to 6
[0017] However, Raman et al. also proposed another method to improve the anti-attrition performance of FCC catalysts in U.S. Patent No. 7,135,429, that is, to use silica as a binder, but failed to improve the anti-attrition performance of the catalyst.

Method used

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  • Preparing method of wearing-resistant catalyst
  • Preparing method of wearing-resistant catalyst
  • Preparing method of wearing-resistant catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1 (the present embodiment is comparative example)

[0058] The FCC catalyst TJPC-F produced by Sinopec Changlian Catalyst Factory has an LOI of 12.1% and an ABD of 0.90g / cm 3 , The wear coefficient is 5.87% / hr.

Embodiment 2

[0060] The TJPC-F catalyst in Example 1 was calcined at 550° C. for 2 hours in a muffle furnace under atmospheric pressure and normal pressure to become TJPC-F-C1. The LOI of the catalyst after calcination is 0.5%, and the ABD is 0.81g / cm 3 , The wear coefficient is 1.81% / hr.

Embodiment 3

[0062] The TJPC-F catalyst in Example 1 was dried in an oven at 110° C. for different times to remove moisture and other volatile matter in the catalyst. The LOI values ​​of the catalyst samples are different with different drying times, and the longer the drying time, the lower the LOI. The wear resistance performance results measured under different LOIs are shown in Table 1.

[0063] Table 1 Comparison of anti-attrition properties of FCC catalysts with different LOI (decrease)

[0064] Sample name

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Abstract

The present invention relates to preparation of a wearing-resistant catalyst, which comprises the following steps: (1) preparing slurry which comprises molecular sieve, binding agent, additive and dispersing agent; (2) mixing each component of the slurry to uniform and reducing particle rate through mixing and grinding; and (3) converting the slurry to formed particles through a forming step; and (4) drying or calcining the formed catalyst; wherein LOI (cutting down) value of the catalyst after drying or calcining is smaller than 8. The invention firstly describes a fact that LOI value reduction of the catalyst can reduce catalyst wearing. In the preparation process, the LOI of the catalyst is reduced so that the prepared catalyst has lower wearing rate. The wearing rate of FCC catalyst is reduced from best 2.5% / hr previously to 0.3% / hr.

Description

technical field [0001] The invention belongs to the field of catalysts, in particular to a method for preparing a wear-resistant catalyst. Background technique [0002] Catalysts are essential accelerators for converting crude oil into liquid fuels required for transportation and transportation, domestic fuel oil and petrochemical raw materials, and are also used to convert coal into more valuable products (such as methanol, or gasification of coal into into liquid fuels) and are also used in the process of converting biofuels into chemical feedstocks. Catalytic activity is an important index to measure the quality of a catalytic material, but it is not the only determining factor. In practical applications, other properties of the catalyst such as mechanical strength, morphology, bulk density, dynamic behavior, etc., can also affect the performance of the catalyst. Activity, inactivation, regenerative capacity, etc. [0003] Shaped catalysts comprise at least one active c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/08B01J35/08C10G11/05C10G47/16
CPCC10G11/18B01J35/08C10G2300/305C10G47/16C10G2400/02C10G11/182B01J29/08C10G11/05C10G2400/20B01J29/04B01J29/06B01J29/084B01J29/40B01J35/002B01J35/0026B01J35/023B01J37/0018B01J37/0036B01J2229/42
Inventor 常云峰杜立安
Owner 常云峰
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