Boiling bed reactor

A technology of fluidized bed reactor and reactor shell, applied in chemical instruments and methods, chemical/physical processes, etc., can solve the problems of reducing catalyst reserves in the reactor, reducing product quality, and reducing catalyst reserves, etc. Reaction efficiency and reactor utilization, reducing the number and number of discharges, and improving the effect of catalyst storage

Inactive Publication Date: 2003-10-15
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current industrial application ebullated bed reactor and its process method have the following deficiencies in practical application: 1. The amount of catalyst storage in the reactor is less, usually about 35% of the reactor volume, and the utilization rate of the reactor space is low, resulting in a large investment in equipment , while the production efficiency is low
2. The internal and external liquid circulation conduits are installed in the reactor to further occupy the effective use space in the reactor, reduce the catalyst storage capacity of t

Method used

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Embodiment -1

[0029] According to the selection of the three-phase separator size of the present invention, a three-phase separator fluidized bed medium-sized reactor cold mold test has been carried out, and the size of the medium-sized cold mold device is: the inner diameter of the reactor shell=160mm, the diameter of the reactor shell Height = 3000mm, the effective volume of the shell is 55 liters, the height of the separator = 380mm, the diameter of the cylindrical part of the central tube of the separator = 92mm, the bottom diameter of the tapered opening at the lower part of the inner cylinder = 144mm, the height of the lower cone part of the inner cylinder = 41mm, The diameter of the cylindrical part of the outer cylinder = 128mm, the bottom diameter of the opening of the conical part = 138mm, the height of the conical part = 64mm, the height difference between the inner cylinder of the separator and the upper opening of the outer cylinder = 138mm, and the upper opening of the outer cyl...

Embodiment -2

[0032] On the basis of the cold model test, the hydrodesulfurization test of the isolated island atmospheric residue was carried out on two thermal devices of 2 liter small-scale reactor and 55 liter medium-scale reactor respectively. Wherein the size of medium-sized reactor is identical with embodiment 1. The size of the small reactor is: the inner diameter of the reactor shell = 40mm, the height of the reactor shell = 2000mm, the effective volume of the shell is 2 liters, the height of the separator = 120mm, the diameter of the cylindrical part of the central tube of the separator = 23mm, the inner cylinder The bottom diameter of the lower conical opening=36mm, the height of the lower conical part of the inner cylinder=10mm, the diameter of the cylindrical part of the outer cylinder=32mm, the bottom diameter of the conical part opening=34mm, the height of the conical part=13mm, the separator The height difference between the inner cylinder and the upper opening of the outer ...

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Abstract

The improved fluidized bed reactor includes cylindrical reactor casing perpendicular to ground and phase separator in the upper part of the casing. The casing has material inlet in the bottom and product outlet on the upper side, and the phase separator consists of two, one inner and one outer, concentric cylinders of different inner diameters as well as the inner wall of the casing, with the inner cylinder having a lower top-less conic opening. The reactor is suitable mainly for the chemical reaction between different liquid and gas matters under the contact with solid particles, and has the advantages of great catalyst holding amount, high reactor utilization, simple structure, easy operation, etc.

Description

1. Technical field [0001] The present invention relates to an improved ebullating bed reactor. The reactor is mainly suitable for chemical reactions of different kinds of liquid and gas substances in contact with solid particles. 2. Background technology [0002] The ebullating bed hydrocracking process is recognized as a high conversion process. In this process, the catalyst can be replaced under the condition of non-stop, and the continuous operation can be completed. Moreover, the raw material oil has a wide application range and a high conversion rate. US.pat.No.RE 25,770 describes a typical ebullating bed process: the hydrocarbon liquid enters the reactor from the lower part of the reactor after being mixed with hydrogen, moves upward through the fluid distribution plate and passes through the catalyst bed. The catalyst moves randomly with the rising gas-liquid mixture. The expansion degree of the catalyst bed is controlled by the reaction feed and the circulating li...

Claims

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Application Information

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IPC IPC(8): B01J8/24
Inventor 佟欣韩照明胡长禄韩保平彭派张刘军
Owner CHINA PETROLEUM & CHEM CORP
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