Patent ID: 7097671
Filing Date: 2006-08-29
Classification: B01D,C10K,Y10S

Abstract:
1. A method of removing colloidal metal sulfides formed from metal carbonyls from a methanol scrubbing solution used to scrub industrial gas at a low temperature, the method comprising the steps of: (a) introducing said methanol scrubbing solution containing colloidal metal sulfides formed from metal carbonyls into a precipitation vessel; (b) heating the methanol scrubbing solution containing colloidal metal sulfide particles in said precipitation vessel to cause growth of the metal sulfide particles therein; (c) introducing the methanol scrubbing solution containing metal sulfides from said precipitation vessel into a methanol/water separation column in which: (d) removing from the sump product metal sulfides from said separation column in the form of larger particles than the particles of the colloidal metal sulfides introduced according to step (a).