Processing method and processing device for graded desorption of residue hydrotreating excretion catalyst in ebullated bed

A technology for expelling catalyst and bed residue oil, applied in chemical instruments and methods, catalyst regeneration/reactivation, physical/chemical process catalyst, etc., can solve the problems of clean recovery of catalyst particles that have not yet been developed, poor effect, and large investment.

Active Publication Date: 2012-10-03
SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent application CN 102399564A discloses a method for treating coal liquefaction residues directly by using the process of agitation extraction-micro-swirl separation-precision filtration-press filtration, but the traditional agitation extraction equipment has a large investment and poor effect
[0010] So far, this field has no...

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  • Processing method and processing device for graded desorption of residue hydrotreating excretion catalyst in ebullated bed
  • Processing method and processing device for graded desorption of residue hydrotreating excretion catalyst in ebullated bed
  • Processing method and processing device for graded desorption of residue hydrotreating excretion catalyst in ebullated bed

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Embodiment 1

[0108] In a 50,000-ton / year ebullated-bed residual oil hydrogenation unit, the exhausted catalyst is treated according to the method of the present invention, and its specific operation process and effects are described as follows:

[0109] 1. Properties of efflux catalyst

[0110] During the online discharge process of the efflux catalyst, the total amount of efflux per week is 4 tons, including 2.4 tons of oil.

[0111] The fresh catalyst carrier is microspherical particles with a particle size of 0.4-0.5mm and a BJH specific surface area of ​​416.308m 2 / g, the pore volume is 0.71ml / g, and 50% of the pore size distribution is below 7nm.

[0112] The petroleum pollutants adsorbed on the surface of the outer catalyst particles and in the inner pores are mainly diesel distillation range, and may contain a small amount of wax oil components.

[0113] 2. Implementation process

[0114] With reference to the specific implementation steps of the present invention, as follows: ...

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Abstract

The invention relates to a processing method and a processing device for graded desorption of residue hydrotreating excretion catalyst in an ebullated bed, and provides the processing method for the graded desorption of the residue hydrotreating excretion catalyst in the ebullated bed. The processing method comprises the following steps: (A), decanting oil due to gravitational settling, storing, and regulating; (B), carrying out hydrothermal micro-swirling desorption and hot water circulation; and (C) carrying out micro-swirling resolvent extraction and cleaning, as well as resolvent circulation. The invention further provides the processing device for the graded desorption of the residue hydrotreating excretion catalyst in the ebullated bed.

Description

technical field [0001] The invention belongs to the fields of petrochemical industry and environmental protection, and relates to a method and a device for performing graded desorption treatment on oil-containing porous media, so as to achieve the goal of separately recovering oil and solid particles from oil-containing porous particles. Specifically, the present invention provides a method and device for the fractional desorption treatment of the fluidized bed residual oil hydrogenation exhaust catalyst. Background technique [0002] The deep conversion of residual oil is the long-term goal of the refinery, and the advanced processing technology routes that can be adopted are also diversified. At present, the hydrogenation technology route is more and more widely used because of its high yield of liquid products and high return on investment. The hydrogenation of residual oil is the process of catalytic reaction between residual oil and hydrogen under the conditions of hig...

Claims

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Application Information

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IPC IPC(8): B01J38/48B01J38/50B01J38/00C10L1/00
Inventor 李剑平汪华林吕文杰张艳红黄渊范轶崔馨沈玲
Owner SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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