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Reaction device for fluidized bed catalyst performance evaluation

A fluidized bed catalyst and reaction device technology, applied in organic chemistry, chemical recycling, bulk chemical production, etc., can solve the problems of single type of device and difficulty in flexible adjustment of uses, achieve good technical effects, expand uses, and can be used The effect of flexible adjustment

Inactive Publication Date: 2012-05-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the problem that the device type is single and the use is difficult to adjust flexibly when evaluating the performance of fluidized bed catalysts, and a new reaction device for evaluating the performance of fluidized bed catalysts is provided

Method used

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  • Reaction device for fluidized bed catalyst performance evaluation
  • Reaction device for fluidized bed catalyst performance evaluation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] in such as figure 1 In the reaction device shown, there are gas outlets on the top of the regenerator, the first reactor, and the second reactor, and catalyst filters are arranged before the gas outlets, and the catalyst flow control valve is a plug valve, and the outlet of the catalyst flow control valve is connected to the first The dense-phase section of a reactor is connected, the outlet of the riser is connected with the dilute-phase section of the regenerator, and a catalyst feeding pipeline is arranged on the top of the regenerator. The operating pressure of the device is normal pressure (gauge pressure), the catalyst adopts SAPO-34, the first raw material adopts mixed hydrocarbons with more than four carbons, and wherein the content of carbon four olefins is 88% (weight), and the second raw material adopts methanol with a purity of 99.5%. The regeneration medium is air, the regeneration temperature is 650°C, the reaction temperature of the first reactor is 550°C...

Embodiment 2

[0019] According to the conditions and steps of Example 1, only the first raw material adopts methanol with a purity of 99.5%, the second raw material adopts steam, the second reactor is used as a stripper, the first reactor reaction temperature is 470 ° C, and the quality of methanol Airspeed is 4.2 hours -1 , the catalyst carbon deposit mass fraction that comes out from the bottom of the first reactor is 4.3%, and enters riser after stripping, and ethylene and propylene carbon base yield are 81.28% (weight) in the gas phase product.

[0020] Apparently, the device of the present invention can be used for continuous reaction-regeneration performance evaluation of fluidized bed catalysts. The device is novel in type, flexible in use, has great technical advantages, and can be used in performance evaluation of fluidized bed catalysts.

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Abstract

The invention relates to a reaction device for fluidized bed catalyst performance evaluation, which mainly solves the problems that during the fluidized bed catalyst performance evaluation, the device form is single, and the purpose can not be flexibly regulated. The reaction device for the fluidized bed catalyst performance evaluation adopts the technical scheme that the reaction device mainly comprises a regenerator 4, a first reactor 10, a second reactor 15 and a lifting pipe 12, wherein the lower part of the regenerator 4 is connected with an inlet of a catalyst flow rate control valve 6, an outlet of the catalyst flow rate control valve 6 is connected with the first reactor 10, the lower part of the first reactor 10 is connected with an inlet of a catalyst flow rate control valve 13, an outlet of the catalyst flow rate control valve 13 is connected with the second reactor 15, the lower part of the second reactor 15 is connected with an inlet of a catalyst flow rate control valve 17, an outlet of the catalyst flow rate control valve 17 is connected with an inlet of the lifting pipe 12, and an outlet of the lifting pipe 12 is connected with the regenerator 4. The problems are perfectly solved, and the reaction device can be used in the fluidized bed catalyst evaluation.

Description

technical field [0001] The invention relates to a reaction device for evaluating the performance of a fluidized bed catalyst, in particular, it is used in the performance evaluation of a fluidized bed catalyst with a deactivation rate of minute order. technical background [0002] At present, the fluidized bed reaction process has been widely used in petrochemical, coal chemical, fine chemical and other fields. Due to its advantages of easy temperature control, easy continuous regeneration of rapidly deactivated catalysts, and easy realization of large-scale production, the fluidized bed The application in the chemical industry has gained more and more attention. [0003] The fluidized bed reaction-regeneration process is widely used in the field of catalytic cracking (FCC). Because the deactivation speed of FCC catalyst is very fast, which belongs to second-level deactivation, FCC basically uses riser reactors at present, and the deactivated FCC catalyst is regenerated. Af...

Claims

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Application Information

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IPC IPC(8): B01J8/00C07C1/20C07C11/04C07C11/06
CPCY02P20/52Y02P20/584Y02P30/20Y02P30/40
Inventor 齐国祯钟思青俞志楠金永明
Owner CHINA PETROLEUM & CHEM CORP
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