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Semi-synthetic catalytic cracking catalyst

A catalytic cracking and catalyst technology, used in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of reducing the quality of refined oil and low octane number of gasoline, achieving low production costs and no increase in catalyst unit consumption , cost-effective effect

Active Publication Date: 2014-09-10
茂名市茂群高岭土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This makes the olefin and sulfur content of the finished gasoline exceed the standard, and the gasoline octane number is low, which reduces the quality of the finished oil

Method used

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  • Semi-synthetic catalytic cracking catalyst

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: The following steps are used to realize the present invention: First, Maoming kaolin is coarsely crushed to a particle size of 150 μm, mixed with chemical water, beaten, and dispersed evenly, then acidified by adding hydrochloric acid with a concentration of 35% for 20 minutes, and then adding rare earth solution ReCl 3 After reacting the solution and pseudo-boehmite for 30 minutes, heat up to 85°C and age for 30 minutes, then add aluminum sol and Y-type synthetic zeolite molecular sieve to beat together for 25 minutes, homogenize and spray dry, and the product obtained is roasted at 800°C and washed with water The finished product is obtained after drying; the dosage ratio is: 38 parts of Maoming kaolin, 30 parts of pseudo-boehmite, 12 parts of aluminum sol, 32 parts of molecular sieve, rare earth solution ReCl 3 0.15 parts of solution, 5 parts of hydrochloric acid.

[0016] Among them, the composition of Maoming kaolin is as follows: the content of kaoli...

Embodiment 2

[0022] Embodiment 2: The following steps are used to realize the present invention: First, Maoming kaolin is coarsely crushed to a particle size of 200 μm, mixed with chemical water, beaten, and dispersed evenly, then acidified with 25% hydrochloric acid for 30 minutes, and then added with rare earth solution ReCl 3 After reacting the solution and pseudo-boehmite for 20 minutes, heat up to 75°C and age for 45 minutes, then add aluminum sol and Y-type synthetic zeolite molecular sieve to beat together for 10 minutes, homogenize and spray dry, and the product obtained is roasted at 850°C and washed with water The finished product is obtained after drying; the dosage ratio is: 40 parts of Maoming kaolin, 28 parts of pseudoboehmite, 10 parts of aluminum sol, 40 parts of molecular sieve, rare earth solution ReCl 3 0.5 parts of solution, 4 parts of hydrochloric acid.

[0023] Among them, the composition of Maoming kaolin is as follows: the content of kaolinite is 91.77%, the element...

Embodiment 3

[0024] Embodiment 3: The following steps are used to realize the present invention: First, Maoming kaolin is coarsely crushed to a particle size of 100 μm, mixed with chemical water, beaten, and dispersed evenly, then acidified by adding hydrochloric acid with a concentration of 40% for 10 minutes, and then adding rare earth solution ReCl 3 After reacting the solution and pseudo-boehmite for 40 minutes, heat up to 60°C and age for 60 minutes, then add aluminum sol and Y-type synthetic zeolite molecular sieve to beat together for 0 minutes, homogenize and spray dry, and the obtained product is roasted at 700°C and washed with water The finished product is obtained after drying; the dosage ratio is: 30 parts of Maoming kaolin, 25 parts of pseudo-boehmite, 6 parts of aluminum sol, 30 parts of molecular sieve, rare earth solution ReCl 3 Solution 0.05 parts, hydrochloric acid 2.5 parts.

[0025] Among them, the composition of Maoming kaolin is as follows: the content of kaolinite i...

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Abstract

The invention discloses a semi-synthetic catalytic cracking catalyst adopting Maoming kaolin for preparation; the preparation comprises the steps: in the preparation, firstly beating the Maoming kaolin with chemical water, then adding hydrochloric acid and pseudo boehmite, beating and acidifying, after acidifying is finished, heating up, aging, then adding a binder and molecular sieve, beating, homogenizing, carrying out spray drying, roasting, carrying out water washing, and drying to obtain the finished product. The semi-synthetic catalyst is a catalyst prepared by adopting the Maoming kaolin to completely replace Suzhou kaolin and used for reduction of the olefin content of catalytically cracked gasoline; the quality indexes are equal to those of products of the prior art; the catalyst can meet the requirements of an FCC catalyst catalytic cracking device on physicochemical properties of the catalyst, and has lower production cost; and compared with conventional catalysts, the catalyst has no increase of unit consumption, is high in product liquid yield, and is an olefin-reducing catalyst product with high cost-performance ratio.

Description

technical field [0001] The invention relates to a catalyst, in particular to a semi-synthetic catalytic cracking catalyst prepared from Maoming kaolin. Background technique [0002] At present, domestic clean fuel production is facing the problem of high olefin and sulfur content, especially the excessive proportion of FCC gasoline in gasoline composition, reaching more than 80% of refined oil, or even higher, which is far from my country's standards. This situation is related to the nature of crude oil in my country, the consumption structure of oil products, and the production characteristics of oil products. This makes the olefin and sulfur content of the finished gasoline exceed the standard, and the gasoline octane number is low, which reduces the quality of the finished oil. [0003] In view of this situation, the relevant measures that can be taken to realize the production of clean fuel oil mainly include reducing the proportion of FCC gasoline in refined oil, addin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/08C10G11/05
Inventor 李勇华
Owner 茂名市茂群高岭土有限公司
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