Crude methanol refinery technology

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: 

 

Crude methanol rectification process

Feature

1

single-column process

  1.    2.Advatange: investment saving, reduce heat energy    consumption     3.Disadvantage: the purity of refined methonal is not    very pure.

2

two-column process

  1.    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

3

three -column process

  1.    2.Advantage: high purity     3.Disadvantage: high investment. Need more area

4

energy-saving three-column process

  1.    2.Advantage: envery saving, reduce the ethanol content of    the purified methanol, product quality is better; methanol yield is higher,    low operating costs     3.Disadvantage: high one-time investment

Our company's crude methanol distillation technology is based on the fourth energy-saving three-tower process, the main feature is to fully optimize the heat transfer network, so that the use of steam and circulating water to a minimum, in order to achieve energy conservation and investment optimization.

 

(1) High yield of the process: fine methanol recovery rate of 99.86% (refined methanol production and feed the amount of methanol contained in the ratio)

(2) Using a mature double-effect distillation method: the use of pressurized overhead gas phase for the atmospheric tower reboiler heat source.

 

To 300,000 tons / year 90.82% methanol distillation as an example.




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