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Catalytic cracking reactivator test simulation method and device

A technology of experimental simulation and catalytic cracking, which is applied in the field of experimental simulation methods and devices of catalytic cracking regenerators, and can solve problems such as unpredictable and guiding industrial processes

Active Publication Date: 2015-08-19
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the catalytic cracking regeneration laws obtained by the existing technology or the mathematical model of the regenerator process cannot predict and guide the actual industrial process

Method used

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  • Catalytic cracking reactivator test simulation method and device
  • Catalytic cracking reactivator test simulation method and device
  • Catalytic cracking reactivator test simulation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Embodiment 1: the mensuration of the carbon content of the raw catalyst in the bubbling bed fluidized state

[0077] Such as figure 1As shown, the gas path (1) uses helium, and the gas path (2) uses air. The volume percentage of oxygen in the mixed gas is controlled by the mass flowmeters on the two gas paths to be 1%, and the total gas flow rate is 1.5L. / min. Reaction tube (9) adopts quartz glass material, and its lower cylinder diameter D1 is 35mm, height-diameter ratio is 100, and upper cylinder diameter D2 is 210mm, height-diameter ratio is 10, D2: D1=6; The included angle α is 60°. At this time, the superficial gas velocity of the lower part of the reaction tube is 0.1m / s, and the superficial gas velocity of the upper part of the reaction tube is 0.01m / s. The gas distributor adopts an orifice plate with an opening diameter of 0.5mm and an opening rate of 9 pcs / cm 2 ; The gas-solid separator adopts a metal sintered plate with an aperture of 10nm. The outside of...

Embodiment 2

[0081] Embodiment 2: the mensuration of the carbon content of the raw catalyst in the fluidized state of the turbulent bed

[0082] Such as figure 1 As shown, the gas path (1) uses high-purity nitrogen, and the gas path (2) uses pure oxygen. The volume percentage of oxygen in the mixed gas is controlled to be 10% by mass flow meters on the two gas paths, and the total gas flow rate is 20L / min. The reaction tube (9) is made of 310S stainless steel, the diameter D1 of the lower cylinder is 20 mm, the height-to-diameter ratio is 15, the diameter D2 of the upper cylinder is 40 mm, and the height-to-diameter ratio is 3, D2: D1=2; the conical surface and the vertical line The included angle α is 30°. At this time, the superficial gas velocity in the lower part of the reaction tube is 1.06m / s, and the superficial gas velocity in the upper part is 0.26m / s. The gas distributor adopts a metal sintered plate with a pore size of 10 μm, and the gas-solid separator uses a ceramic porous m...

Embodiment 3

[0086] Embodiment 3: the mensuration of the carbon content of the raw catalyst in the fast fluidized bed fluidized state

[0087] Such as figure 1 As shown, the gas path (1) uses high-purity argon, and the gas path (2) uses pure oxygen. The volume percentage of oxygen in the mixed gas is controlled to 90% by mass flow meters on the two gas paths, and the total gas flow rate It is 60L / min. The reaction tube (9) is made of 310S stainless steel, the diameter D1 of the lower cylinder is 20mm, the height-to-diameter ratio is 1, the diameter D2 of the upper cylinder is 25mm, and the height-to-diameter ratio is 0.5, D2: D1=1.2; the conical surface and the vertical line The included angle α is 5°. At this time, the superficial gas velocity of the lower part of the reaction tube is 3m / s, and the superficial gas velocity of the upper part is 2m / s. The gas distributor adopts a metal sintered plate with a pore diameter of 20 μm, and the gas-solid separator adopts a ceramic porous materi...

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Abstract

The invention discloses a catalytic cracking reactivator test simulation method. The method includes mixing a gas 1 and a gas 2 online to enter a reactor; allowing the catalyst in a reaction tube to be in a fluidizing state through the mixed gas; allowing the mixed gas to react with the catalyst; performing gas-solid separation on the reacted gas; metering and / or analyzing the separated gas. The fluidizing principle is utilized, on the set operation condition, the catalyst can be maintained in a fine fluidizing state in the reaction tube, the reactivating process for catalytic cracking of the catalyst to reactivate in the industrial state can be simulated effectively, and the important significance is provided for predicting and indicating the actual industry process.

Description

technical field [0001] The invention relates to a method and device for conducting simulation experiments, in particular to an experiment simulation method and device for catalytic cracking regenerators. Background technique [0002] Catalytic cracking technology is one of the important technical means of petroleum processing. Its technology development is relatively mature, and it is also one of the important secondary processing means of crude oil. It provides 70% to 80% of gasoline and 30% of diesel in the domestic market. [0003] The catalytic cracking process mainly includes three parts: [0004] ① Catalytic cracking of raw oil; [0005] ② Catalyst regeneration; [0006] ③ product separation. [0007] The catalyst used in catalytic cracking must be regenerated because coke is attached to the surface during the reaction process (the catalyst at this time is called coked catalyst or spent catalyst) and its activity is reduced. The regenerated catalyst enters the reac...

Claims

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Application Information

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IPC IPC(8): C10G11/18B01J8/24B01J38/12
Inventor 陈小博孙金鹏刘熠斌山红红杨朝合李春义
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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