ABSORBENT LIQUID, AND APPARATUS AND METHOD FOR REMOVING CO2 OR H2S FROM GAS WITH USE OF ABSORBENT LIQUID

ABSORBENT LIQUID, AND APPARATUS AND METHOD FOR REMOVING CO2 OR H2S FROM GAS WITH USE OF ABSORBENT LIQUID

An absorbent liquid according to the present invention is an absorbent liquid for absorbing CO 2 or H 2 S or both from gas, in which the absorbent liquid includes an alkanolamine as a first compound component, and a second component including a nitrogen-containing compound having in a molecule there...

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Bibliographische Detailangaben
Hauptverfasser: ICHIHARA, TAROU, TANOURA, MASAZUMI, MIMURA, TOMIO, YAGI, YASUYUKI, FUJII, SHUUJI, WATARI, NORIKO, INOUE, YUKIHIKO, SAKANO, MITSURU, IIJIMA, MASAKI, OGURA, KOUKI, YOSHIYAMA, RYUJI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSEGASES [GHG]
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
TRANSPORTING
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Beschreibung
Zusammenfassung:An absorbent liquid according to the present invention is an absorbent liquid for absorbing CO 2 or H 2 S or both from gas, in which the absorbent liquid includes an alkanolamine as a first compound component, and a second component including a nitrogen-containing compound having in a molecule thereof two members or more selected from a primary nitrogen, a secondary nitrogen, and a tertiary nitrogen or a nitrogen-containing compound having in a molecule thereof all of primary, secondary, and tertiary nitrogens. The absorbent liquid has an excellent absorption capacity performance and an excellent absorption reaction heat performance, as compared to an aqueous solution containing solely an alkanolamine and a nitrogen-containing compound in the same concentration in terms of wt%, and can recover CO 2 or H 2 S or both from gas with smaller energy.