| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an absorbing liquid which can remove either one or both of CO<SB>2</SB>or/and H<SB>2</SB>S contained in a gas by a compact and energy-saving recovery unit, and an apparatus and a method of removing either one or both of CO<SB>2</SB>or/and H<SB>2</SB>S by using the absorbing liquid. <P>SOLUTION: The absorbing liquid absorbs either or both of CO<SB>2</SB>and H<SB>2</SB>S in the gas, and contains alkanolamine as a first compound component and a second component consisting of a nitrogen-containing compound having two or more of a primary nitrogen atom, a secondary nitrogen atom and a tertiary nitrogen atom in the molecule. As a result, the absorbing liquid can exhibit a more excellent absorptive capacity performance and absorption reaction heat performance compared to a single aqueous solution of the alkanolamine or nitrogen-containing compound having the same wt.% concentration and can recover either or both of CO<SB>2</SB>and H<SB>2</SB>S in the gas with low energy. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
