| 摘要 |
PCT No. PCT/SE88/00555 Sec. 371 Date May 16, 1990 Sec. 102(e) Date May 16, 1990 PCT Filed Oct. 21, 1988 PCT Pub. No. WO89/04713 PCT Pub. Date Jun. 1, 1989.A process for conditioning a gas containing the vapors of a volatile substance, in which the gas is placed sequentially in contact with successively more concentrated solutions of an absorption liquid on cooled surfaces, such absorption liquid consisting of a solution of said volatile substance and at least one non-volatile substance. The vapors in the gas are isothermally absorbed into the absorption liquid upon such contact, thereby diluting the concentration of the absorption liquid. The diluted absorption liquid is concentrated by multi-stage evaporation in a multi-stage evaporator. The concentrated absorption liquid is recycled back to the cooled surfaces. |
