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Equipment for preparing molecular sieve

A molecular sieve and equipment technology, which is applied in the field of molecular sieve preparation equipment, can solve problems such as low production efficiency, high manual labor intensity, and endangering the health of operators, and achieve stable product performance, low manual labor intensity, and high production efficiency.

Active Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 molecular sieve
  • Equipment for preparing molecular sieve
  • Equipment for preparing molecular sieve

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Effect test

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

[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 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

[0050] 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 provides equipment for preparing a molecular sieve. The equipment is characterized in that: the equipment comprises a tubular reactor, a gas-solid separator and an absorbing tower. The tubular reactor comprises a heater, a first feeding port, a discharging port and a tube body. The heater can be used for heating the tube body. With the molecular sieve preparing equipment provided by the invention, a contact reaction of the molecular sieve and SiCl4 can be continuously carried out. With the controlling over the length of the tubular reactor, the contact time of the molecular sieve and SiCl4 can be controlled, such that the contact reaction of the molecular sieve and SiCl4 can be sufficiently carried out in the tubular reactor. With the tubular reactor with the heating function, different reaction temperatures can be controlled, such that different reaction conditions and reaction degrees can be controlled. Therefore, molecular sieve products with different dealuminization depths can be obtained according to different requirements.

Description

technical field [0001] The invention relates to a device for preparing molecular sieves. 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 extract alu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24C01B39/02
Inventor 田辉平于大平宋武周灵萍朱玉霞许明德张蔚琳田华周岩张志良杨凌张蓬来张超稳孙涛陈玉华苏周全
Owner CHINA PETROLEUM & CHEM CORP
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