Method for oxidizing asphaltum

A kind of asphalt and oxidation tower technology, which is applied in the field of producing asphalt or improving the properties of asphalt. It can solve the problems of complex structure of asphalt oxidation tower, short operation period of oxidation tower, and slow oxidation process of asphalt, so as to increase the reaction surface area, uniform product properties, and high reaction efficiency. fast effect
CN1183222CInactive Publication Date: 2005-01-05CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2005-01-05
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

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 f...

Claims

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