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Equipment for preparing catalytic cracking catalysts

A catalytic cracking and catalyst technology, used in chemical/physical/physical-chemical stationary reactors, etc., can solve the problems of low production efficiency, high labor intensity, and endanger the health of operators, and achieve high production efficiency and labor intensity. Small, stable product performance

Active Publication Date: 2013-12-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And, in the method of above-mentioned prior art, in order to guarantee the high silicon content of the obtained molecular sieve, generally all make SiCl 4 far excess, excess SiCl 4 Undoubtedly increased production costs and environmental protection costs
On the other hand, the above-mentioned methods all require very complicated manual operations, such as: manual loading, manual unloading and long-term purging of pipelines after the completion of the reaction, which not only bring about high labor intensity but also low production efficiency. problems, moreover, molecular sieve dust and excess SiCl during loading and unloading 4 It also causes serious environmental pollution and seriously endangers the health of operators.
Therefore, the above-mentioned tank-type gas-phase ultra-stable process is difficult to carry out industrial production

Method used

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  • Equipment for preparing catalytic cracking catalysts
  • Equipment for preparing catalytic cracking catalysts
  • Equipment for preparing catalytic cracking catalysts

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Embodiment approach

[0028] According to a preferred embodiment of the present invention, the pipe body 13 further includes a second inclined section 133, one end of the second inclined section 133 is connected to the other end of the vertical section 132, and the first The feed port is located at the other end of the second inclined section 133 . Such setting can prevent the molecular sieve solid material from flowing too fast under the action of gravity, and increase the contact reaction time between the reaction materials.

[0029] Further preferably, the position of the first feed inlet is higher than the position where the second inclined section 133 is connected to the vertical section 132, so that the molecular sieve solid material can directly enter the second inclined section 133 by its own gravity. In section 133, it can then be transported further under the entrainment of the carrier gas.

[0030] The included angle between the second inclined section 133 and the vertical section 132 c...

Embodiment 1

[0048] Made of industrial grade stainless steel with a thickness of 3mm NiCr18Ti figure 2 In the shown molecular sieve vapor phase silicon replenishment equipment, the tube body 13 of the tubular reactor 1 is composed of a first inclined section 131, a vertical section 132 and a second inclined section 133, the length of the first inclined section 131 is 20 meters, and the diameter is 0.8 meters, the length of the vertical section 132 is 40 meters, and the diameter is 0.8 meters. The length of the second inclined section 133 is 15 meters, and the diameter is 0.8 meters. The vertical section 132 is perpendicular to the horizontal plane, and the axis of the first inclined section 131 and The angle α between the horizontal planes is 75° (that is, the angle between the first inclined section 131 and the vertical section 132 is 15°), and the angle β between the axis of the second inclined section 133 and the horizontal plane is 65° (that is, the angle between the second inclined s...

Embodiment 2

[0051] Made of industrial grade stainless steel with a thickness of 3mm NiCr18Ti figure 2 In the shown molecular sieve vapor phase silicon replenishment equipment, the tube body 13 of the tubular reactor 1 is composed of a first inclined section 131, a vertical section 132 and a second inclined section 133, the length of the first inclined section 131 is 25 meters, and the diameter is 0.4 meters, the length of the vertical section 132 is 45 meters, and the diameter is 0.4 meters. The length of the second inclined section 133 is 25 meters, and the diameter is 0.4 meters. The vertical section 132 is perpendicular to the horizontal plane, and the axis of the first inclined section 131 and The included angle α between the horizontal planes is 55° (that is, the included angle between the first inclined section 131 and the vertical section 132 is 35°), and the included angle β between the axis of the second inclined section 133 and the horizontal plane is 55° (that is, the angle be...

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Abstract

The invention relates to equipment for preparing catalytic cracking catalysts, wherein the equipment comprises a tubular reactor, a gas and solid separator, an absorption tower, a pulping machine and a pelleting device, the tubular reactor comprises a heater, a first material inlet, a material outlet and a pipe body, and the heater can be used for heating the pipe body. The equipment for preparing catalytic cracking catalysts, provided by the invention, can realize the continuous proceeding of contact reaction of molecular sieves and SiCl4, the contact reaction of the molecular sieves and the SiCl4 can be sufficiently taken in the tubular reactor through controlling the flow speed of carrier gas and the length of the tubular reactor, and different reaction temperatures can be controlled through using the tubular reactor with the heater in the pipe body of the tubular reactor, so different reaction conditions and reaction degrees can be controlled, further, molecular sieve products with different dealumnization depths can be obtained, and finally, catalyst products with different silica alumina ratios can be obtained.

Description

technical field [0001] The invention relates to a device for preparing catalytic cracking catalyst. Background technique [0002] Molecular sieve is a widely used material in catalytic cracking catalyst, and it is also a very important component. The performance of molecular sieve directly affects the reaction performance of catalytic cracking catalyst. According to different needs, molecular sieves can be modified differently to meet the requirements of use. For example, molecular sieves with a high silicon-to-aluminum ratio are generally considered to be required for catalytic cracking catalysts. [0003] In the preparation of molecular sieves with a high silicon-aluminum ratio, there are mainly the following methods: ammonium fluorosilicate method for aluminum and silicon supplementation, hydrothermal method for aluminum and silicon supplementation, and gas phase chemical method for aluminum and silicon supplementation. [0004] The method of ammonium fluorosilicate to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/24
Inventor 周灵萍于大平宋武朱玉霞许明德田辉平张蔚琳周岩张志民杨凌张蓬来陶金赵峰张超稳王生吉潘红年周春尧
Owner CHINA PETROLEUM & CHEM CORP