Amine recovery method and apparatus and decarbonation apparatus having same

In a decarbonation process for removing carbon dioxide from a carbon dioxide-containing gas with the use of an amine compound-containing absorbing solution, an amine compound accompanying a decarbonated exhaust gas is efficiently recovered in the following manner: A water washing section is constitu...

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Hauptverfasser: TANAKA HIROSHI, NAKASHOJI HIROSHI, HIRATA TAKUYA, ISHIDA KAZUO, MIMURA TOMIO, NOJO TAKASHI
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creator TANAKA HIROSHI
NAKASHOJI HIROSHI
HIRATA TAKUYA
ISHIDA KAZUO
MIMURA TOMIO
NOJO TAKASHI
description In a decarbonation process for removing carbon dioxide from a carbon dioxide-containing gas with the use of an amine compound-containing absorbing solution, an amine compound accompanying a decarbonated exhaust gas is efficiently recovered in the following manner: A water washing section is constituted in two stages, a first-stage water washing section 64 and a second-stage water washing section 65. In these water washing sections, recovery of the amine compound accompanying the decarbonated exhaust gas is performed sequentially. Regeneration tower refluxed water is supplied as washing water to the second-stage water washing section 65. Washing water is withdrawn from the second-stage water washing section 65 and supplied to the first-stage water washing section 64. Demisters 83, 84 and 85 are provided at outlets of a carbon dioxide absorption section 73, the first-stage water washing section 64 and the second-stage water washing section 65. An absorbing solution mist and a washing water mist accompanying the decarbonated exhaust gas are removed by these demisters.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
title Amine recovery method and apparatus and decarbonation apparatus having same
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