| abstract |
(57) [Summary] A process control method for acetic acid production by catalytic carbonylation of methanol and a method for producing acetic acid using the process control method have been proposed. The process control method is to measure the concentration of various reaction components, particularly active catalyst species, methyl iodide, water, and methyl acetate by infrared absorption, and to at least increase the concentration of the catalyst species, methyl iodide and water to maximize the acetic acid reaction. Adjustment to correspond to the measured value in order to do so. |