Crude methanol refinery technology

Proprietary Technology and Plants

Technology Introdction:

Crude methanol rectification process includes single-column process, two-column process, three -column process and energy-saving three-column process. The feature of Four processes are as follows: 

No. Crude methanol rectification process Feature

1 single-column process 1.Methonal-water regroup, separate in one column

     2.Advatange: investment saving, reduce heat energy    consumption

     3.Disadvantage: the purity of refined methonal is not    very pure.

2 two-column process 1.The combination of pre-recification column and main rectification    column

     2.Refine crude methonol including dimethyl ether and    other light components and reducing impurities 

     3.Advantage: simple process ,user friendly, less    investment

     4.Disadvange: high energy consumption, low purity