Device and method for separating residue from catalytic cracking oil slurry

A technology for catalytic cracking of oil slurry and residues, which is applied in the petrochemical field and can solve the problems of filter blockage, easy blockage of the filter, and inability to achieve complete separation of liquid and solid.
CN102002385AActive Publication Date: 2011-04-06SHANGHAI LANKE PETROCHEM ENG & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI LANKE PETROCHEM ENG & TECH
Publication Date
2011-04-06

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Abstract

The patent discloses a device for separating residue from catalytic cracking oil slurry, which comprises at least two filter sets and a filter cake tank, wherein the at least two filter sets are formed by connecting pre-filters and fine filters; the filter cake tank is arranged between the bottoms of the pre-filters and the fine filters for accommodating a peeled filter cake and washed washing oil; the bottom of each pre-filter is connected with a raw material oil slurry inlet and a washing oil inlet, and the bottom of each fine filter is connected and provided with a washing oil inlet for washing the filter core of the filter; an oil slurry filtrate outlet is formed on the top of each fine filter; and backwash air inlets are formed on the tops of both the pre-filters and the fine filters. Meanwhile, the patent also discloses a method using the device. The residual catalyst content of the oil slurry filtrate processed by the device in the patent is less than 0.01 percent, and filtrate content is less than 0.02 percent.
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Description

technical field

[0001] The invention relates to the field of petrochemical industry, in particular to a device and method for improving the quality of catalytic cracking oil slurry by filtering and removing asphaltenes and residual catalyst particles in catalytic cracking oil slurry. Background technique

[0002] Catalytic cracking is the most important heavy oil lightening process in the oil refining industry. The catalytic cracking oil slurry contains a large amount of aromatics and naphthenes and some aromatic components with low condensation degree. Components can be used as raw materials for hydrocracking to produce high-quality light hydrocarbon components; in addition, due to heavy components and high aromatic content, catalytic cracking oil slurry has high density, high viscosity, and high solubility and compatibility with polymer materials. Compatibility etc. However, due to the existence of asphaltenes and catalyst particle residues in ordinary catalytic cracking ...

Claims

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