A method of removing solid particles from oil slurry by heat treatment centrifugal sedimentation-electrostatic method

A centrifugal sedimentation and removal technology, which is applied in the treatment of hydrocarbon oil, multi-stage series refining process treatment, and petroleum industry, etc. It can solve the problem of difficult to adapt to the complex nature of catalytic oil slurry, and achieve high desolidification efficiency and economical improvement. Value, effect of simple equipment
CN110938462BActive Publication Date: 2021-06-18CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2021-06-18

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Abstract

The invention provides a method for deep removal of solid particles in oil slurry by heat treatment centrifugal sedimentation-electrostatic method, which mainly includes the following two steps: (1) directly pumping the oil slurry thrown out of the catalytic cracking unit into a centrifugal settling tank for heat treatment Centrifugal sedimentation; (2) Pump the 60-99% oil slurry in the upper layer after heat treatment and centrifugal sedimentation directly into the electrostatic tower for electrostatic desolidification. The invention preliminarily improves the properties of the oil slurry before electrostatic treatment, can effectively improve the electrostatic desolidification efficiency, and thereby achieves the purpose of deep desolidification of the oil slurry. The solid content of the treated oil slurry can be reduced to 100μg·g ‑1 Within, to meet the solid content requirements of raw materials for high value-added products.
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Description

technical field

[0001] The invention provides a new process for deep removal of solid particles in catalytic cracking (FCC) oil slurry, especially a new method for removing the solid content of FCC oil slurry with complex properties such as high density, high viscosity and high solid content. Background technique

[0002] Catalytic cracking is currently a commonly used process technology for lightening heavy oil, and a large number of by-products will be produced after the reaction of the catalytic cracking unit, of which the most abundant is catalytic cracking (FCC) oil slurry. According to statistics, my country's annual output reaches More than 9 million tons. FCC oil slurry contains more aromatic components, among which condensed ring aromatics with 3 to 5 rings have the most content. It is a high-quality raw material for the production of high value-added chemical products such as carbon black, carbon fiber and needle coke. However, because the oil slurry contains more ...

Claims

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