Processing gaseous streams resulting from carbonylation process

The invention provides methods for recovering iodine-containing compounds from a gaseous stream that contain at least one iodine-containing compound. The method includes: (a) contacting the gaseous stream with liquid methyl acetate in a first scrubbing zone to produce a methyl acetate-scrubbed gaseous stream and a first used scrubbant, the first used scrubbant containing methyl acetate, acetic acid, and the iodide compound; and (b) contacting at least some of the methyl acetate-scrubbed gaseous stream with liquid acetic acid in a second scrubbing zone to produce an acetic acid-scrubbed gaseous stream and a second used scrubbant, the second used scrubbant containing methyl acetate and acetic acid. The method may further include a third scrubber step that includes contacting at least some of the acetic acid-scrubbed gaseous stream with water in a third scrubbing zone to produce a water-scrubbed gaseous stream and a third used scrubbant, the third used scrubbant containing water and acetic acid. The gaseous stre