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Device for preparing catalytic cracking catalyst

A catalytic cracking and catalyst technology, applied in chemical/physical/physical-chemical stationary reactors, etc., can solve the problems of environmental pollution, high labor intensity, low production efficiency, etc., and achieve high catalytic cracking activity, uniform reaction degree, Stable quality effect

Active Publication Date: 2014-07-02
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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  • Device for preparing catalytic cracking catalyst
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Embodiment approach

[0023] 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.

[0024] Further preferably, the position of the feed inlet is higher than the position where the second inclined section 133 is connected to the vertical section 132, so that the material can quickly and directly enter the second inclined section 133, and then be further conveyed .

[0025] The included angle between the second inclined section 133 and the vertical section 132 can be 10-90°, preferably 30-80°, that is, when the vertical section 132 is perpendicular to the h...

Embodiment 1

[0043] 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

[0047] 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 included...

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Abstract

A device for preparing a catalytic cracking catalyst. The device contains a tubular reactor, a gas mixer, a raw material mixing unit, an absorbing tower, a beater and a nodulizer. The tubular reactor contains at least one feed inlet, a discharge hatch and a pipe body. One of the feed inlets and the discharge hatch are respectively positioned on two end portions of the pipe body. The tubular reactor communicates with the raw material mixing unit through one of the feed inlets and communicates with a gas-solid separator through the discharge hatch. The top and bottom of the gas-solid separator respectively communicate with the absorbing tower and the beater. The position where the gas-solid separator is connected with the discharge hatch is lower than the position where the gas-solid separator is connected with the absorbing tower. The nodulizer collects materials from the beater. By the adoption of the device provided by the invention, continuous contact reaction between a molecular sieve and SiCl4 can be realized. By controlling flow velocity of a gaseous mixture and the length of the tubular reactor, the contact time of the molecular sieve and SiCl4 can be controlled, therefore fully carrying out the reaction.

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 朱玉霞于大平宋武许明德周灵萍田辉平张蔚琳周岩张志民杨凌张蓬来陶金朱世芳赵峰张超稳王生吉贾慧
Owner CHINA PETROLEUM & CHEM CORP