Dechlorination active carrier and method for preparing the same

By preparing a dechlorination active carrier with a high specific surface area, the problems of chloride corrosion of equipment and catalyst poisoning in crude oil were solved, achieving more efficient chloride removal and improving the stability of the refining process and product quality.

CN121288796BActive Publication Date: 2026-02-17ZIBO CHANGJUYUAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202511870570.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-02-17
Estimated Expiration
2045-12-12

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively remove chlorides from crude oil, leading to equipment corrosion and catalyst poisoning, which affects the stability of the refining process and product quality.

Method used

A layered coating precursor was prepared by using polyoxyethylene-polyoxypropylene block copolymer, modified protein solution, cobalt nitrate, aluminum lactate, and 2-aldehyde phenylboronic acid. The precursor was then combined with sodium aluminate and TEOS crystallized under the action of tetrabutylphosphine hydroxide and calcined to form an active carrier with a high specific surface area, providing more adsorption sites.

Benefits of technology

It increases the adsorption surface area and mass transfer rate, resulting in better dechlorination effect and improving the safety and product quality of the oil refining process.

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Abstract

The application belongs to the technical field of dechlorination carrier and specifically provides a preparation method of a dechlorination active carrier, which comprises the following steps: 1) polyoxyethylene-polyoxypropylene block copolymer and modified protein solution are dissolved in deionized water, then cobalt nitrate, aluminum lactate and 2-aldehyde benzene boronic acid are added and stirred uniformly, reaction is carried out at 110-130 DEG C, centrifugation and drying are carried out to obtain a precursor; 2) tetrabutylphosphonium hydroxide and sodium aluminate are added into deionized water, TEOS and the precursor are added after mixing, stirring is carried out, crystallization is carried out at 165-175 DEG C, centrifugation and washing are carried out, and the obtained solid is dried and calcined to obtain the dechlorination active carrier. The carrier prepared by the application has the advantage of good dechlorination effect.
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