Hyundai Motor Company

Hyundai Steel Company

Kia Motors Corporation

Kia Motors Company

Seok Gyu Sonh

Min Hee Cho

Ki Chun Lee

Sung Yeup Chung

Dong Cheol Park

Tae Young Kim

The present invention provides an apparatus for solidifying and converting carbon dioxide into carbonate, comprising: an alkali component extraction reactor for extracting an alkali metal component from a raw slag; a carbonation reactor for injecting carbon dioxide into an alkali metal component solution containing the extracted alkali metal component to produce a carbonate precipitate from the alkali metal component solution; a first filtration device connected between the alkali component extraction reactor and the carbonation reactor to separate a post-treatment slag, from which the alkali component is extracted, from the alkali metal component solution; and a second filtration device connected between an inlet of the alkali component extraction reactor and an outlet of the carbonation reactor to separate the carbonate from the alkali metal component solution after the carbonation reaction.

Apparatus for solidifying and converting carbon dioxide into carbonate

A method and system of fixing carbon dioxide is provided. After metal ion components are extracted from, e.g., natural mineral or steel slag through acid treatment, carbon dioxide is injected to fix carbon dioxide by carbonating the same. Since the procedure of pH adjustment is unnecessary, the reaction is carried out effectively and a continuous process is enabled. Accordingly, the disclosed method of fixing carbon dioxide enables effective removal of carbon dioxide produced from the steelmaking industry, thereby significantly reducing greenhouse gas emission and allowing recycling of the discarded steel slag.

Method of fixing carbon dioxide

The present invention relates to a system fixing carbon dioxide. The system comprises a first reactor for extracting alkali metal components from a slag and a second reactor for carbonating the extracted alkali metal component with carbon dioxide. With this system, carbon dioxide can be fixed in a simpler and cost-effective manner.

System for fixing carbon dioxide

Growing community of inventors

Gyeonggi-do, South Korea

Seok Gyu Sonh