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

An absorbent liquid capable of absorbing CO2 or H2S or both from a gas, comprising an alkanolamine as a first compound component and a second component of a nitrogenous compound having two or more primary, secondary or tertiary nitrogens or having all thereof in each molecule. This absorbent liquid...

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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 ; jpn
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 capable of absorbing CO2 or H2S or both from a gas, comprising an alkanolamine as a first compound component and a second component of a nitrogenous compound having two or more primary, secondary or tertiary nitrogens or having all thereof in each molecule. This absorbent liquid exhibits excellent absorptive capacity performance/absorption reaction heat performance as compared with those of aqueous solutions wherein equal wt.% concentrations of alkanolamine and nitrogenous compound are contained alone, and can recover CO2 or H2S or both from a gas with reduced energy. L'invention concerne un liquide absorbant capable d'absorber le CO2 ou le H2S ou les deux d'un gaz, comprenant une alcanolamine en tant que premier composant et un second composant comprenant un composé azoté ayant deux azotes primaires et/ou secondaires et/ou tertiaires ou plus par molécule. Ce liquide absorbant présente une excellence performance en termes de capacité d'absorption/chaleur de réaction d'absorption en comparaison de solutions aqueuses contenant des concentrations en % en poids égales d'alcanolamine et de composé azoté seuls, et pouvant récupérer le CO2 ou le H2S ou les deux d'un gaz avec une énergie réduite.