FIELD: process engineering.
SUBSTANCE: invention relates to industrial synthesis of methanol. In compliance with proposed process, synthesis circuit is operated at the same pressure whereat fresh make-up gas is obtained. Purge gas is withdrawn from unreacted circulation gases. Purge gas is withdrawn of the side of synthesis circuit circulation compression section outlet side. Released hydrogen is produced with the help of low pressure difference device and forced back into synthesis circuit at compression section inlet side.
EFFECT: synthesis circuit is operated at the same pressure whereat make-up gas is obtained, hydrogen recovery without compression.
7 cl, 1 dwg
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