atm. As previously stated, verify that the acetone is recovered in the product tank. Below, the optimal temperature evolutions are presented for the HP step of the process, ie. stripper, at the specified working pressure of P 2 =10 atm, temperature rise, but in an inverse sense, from the top to the bottom, following the trend within the temperature interval from the minimal temperature of 134.27°C to the maximal temperature of 138.39°C. Hereby, previously written goes in favor of the fact that methanol is recovered in the inverted column product tank. All previously stated are also in accordance with the findings of previous authors (Luyben ). As a consequence, it is verified, that the ultimate goal of the designed two-step process, ie. consecutive production of acetone and methanol, is achieved.