Method for improving quality of coal ethylene glycol product

The invention discloses a method for improving the quality of a coal ethylene glycol product, and relates to the technical field of ethylene glycol product purification, ethylene glycol prepared by an indirect coal method is sequentially subjected to dealdehyding and degreasing reaction, and the eth...

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Bibliographic Details
Main Authors SU GUOQING, JIANG HAIJIN, WANG WUPING
Format Patent
LanguageChinese
English
Published 15.11.2022
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:The invention discloses a method for improving the quality of a coal ethylene glycol product, and relates to the technical field of ethylene glycol product purification, ethylene glycol prepared by an indirect coal method is sequentially subjected to dealdehyding and degreasing reaction, and the ethylene glycol product obtained after the degreasing reaction is subjected to hydrophobic adsorption treatment through a hydrophobic adsorbent. According to the method, the light transmittance of the ethylene glycol product can be further improved, the preservation time of the ethylene glycol product can be prolonged, and the change of the UV value of the ethylene glycol product can be almost controlled within 2% after the ethylene glycol product is properly preserved for more than half a year. The transformation method is simple and easy to implement, only adsorption tower equipment needs to be added on an existing production line, the transformation cost is low, the transformation effect is good, and the method is
Bibliography:Application Number: CN202210832815