METHOD FOR REMOVING CARBON DIOXIDE IN ACIDIC GAS AND APPARATUS THEREFOR

Provided is a method for removing carbon dioxide in acidic gas and an apparatus therefor. A method for removing carbon dioxide in acidic gas includes: purifying coke oven gas to prepare acidic gas; injecting ammonia into the acidic gas and adjusting a molar ratio of carbon dioxide to ammonia in an e...

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Bibliographic Details
Main Authors CHO, Moon Kyung, CHOI, Han-Young, KWON, Woo-Taeck, PARK, Ju-Yong, CHOI, Hye Ji
Format Patent
LanguageEnglish
Published 20.12.2018
Subjects
CHEMISTRY
DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
FUELS
LUBRICANTS
METALLURGY
PEAT
PERFORMING OPERATIONS
PETROLEUM, GAS OR COKE INDUSTRIES
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE
SEPARATION
TECHNICAL GASES CONTAINING CARBON MONOXIDE
TRANSPORTING
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Summary:Provided is a method for removing carbon dioxide in acidic gas and an apparatus therefor. A method for removing carbon dioxide in acidic gas includes: purifying coke oven gas to prepare acidic gas; injecting ammonia into the acidic gas and adjusting a molar ratio of carbon dioxide to ammonia in an entire mixed stream to 0.5 or more; indirectly cooling the mixed stream to form a salt; removing the salt in a form of slurry; heating the salt in the removed slurry to decompose the salt into carbon dioxide gas, ammonia gas, and water; and recovering the decomposed ammonia gas.
Bibliography:Application Number: US201515779288