| 摘要 |
A process for removing acid gases from a water vapour-containing fluid stream (1) comprises a) providing an absorption liquid (16) which is incompletely miscible with water; b) treating the fluid stream (1) in an absorption zone (3) with the absorption liquid (16) to obtain an acid gas-depleted treated fluid stream (4) and an acid gas-loaded absorption liquid (7); c) directing the treated fluid stream (4) to a rehydration zone (5) and treating the fluid stream (4) with an aqueous liquid (22) to volatilize at least part of the aqueous liquid; d) regenerating (12) the loaded absorption liquid (9, 11) to expel the acid gases (17) at least in part and obtain a regenerated absorption liquid (13), and directing the regenerated absorption liquid (13, 14, 16) to step b); and e) separating (8), from the absorption liquid (7), an aqueous liquid (22) that has condensed in the absorption zone (3), and directing the aqueous liquid (22) to step c). The process allows for an efficient removal of water accumulated in the absorption liquid system. |
