Method for oxidizing asphaltum

An asphalt and oxidation tower technology, applied in the field of asphalt production or improvement of asphalt properties, can solve the problems of complex structure of asphalt oxidation tower, short operation period of oxidation tower, long time of asphalt oxidation, etc., to increase reaction surface area, uniform product properties, easy to use control effect
CN1415699AInactive Publication Date: 2003-05-07CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2003-05-07
Estimated Expiration
Not applicable · inactive patent
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Abstract

A process for oxidizing asphalt includes such steps as dispersing air in the microbubbles mode in asphalt, loading in asphalt oxidizing tower, and oxidizing. Its advantages are high utilization rate of air, high speed, and simple structure of said oxidizing tower.
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Description

1. Technical field

[0001] The invention relates to a method for asphalt oxidation, which belongs to the technical field of asphalt oxidation treatment, in particular to a method for producing asphalt or improving the properties of asphalt by using air as an oxidizing agent. 2. Background technology

[0002] The production of asphalt by oxidation method is to use residual oil, solvent deoiled asphalt or its blend with other soft components as raw materials, and continuously feed air at a certain temperature in a bubbling oxidation tower. The asphalt raw material stays in the oxidation tower for a certain period of time, and undergoes an oxidation reaction with the air to increase the content of asphaltene, improve its softening point, and reduce the penetration, so as to obtain qualified asphalt products.

[0003] In the asphalt oxidation tower, air is blown in from the bottom of the tower and passes through the liquid asphalt raw material layer in the...

Claims

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