System for recovering byproduct butanol in production of 1, 4-butanediol

• Main Authors: LU JUN, LI CHENGMING, CAO XINFENG, LIN TAOHAI, GUAN GANG, SHAN FURONG, DENG JIANKANG, JIANG JIJUN
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2019
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The utility model relates to a byproduct butanol recovery system in 1, 4-butanediol production, which comprises a dehydrating tower, a chromatographic device and a rectifying tower which are connectedin sequence, the top of the dehydration tower is sequentially connected with a dehydration tower condenser, a dehydration tower reflux tank, a dehydration tower reflux pump and a waste alcohol storage tank; a butanol condenser and a rectifying tower return tank are sequentially connected to a side extraction opening in the upper part of the dehydrating tower; an outlet pipe of the reflux tank ofthe rectifying tower is sequentially connected with a chromatographic device feeding pump and a chromatographic device; a chromatograph top outlet pipe is connected to the upper part of the rectifyingtower; an outlet pipe at the bottom of the chromatograph is connected to the lower part of the dehydrating tower; the rectifying tower bottom outlet pipe is sequentially connected with a rectifying tower bottom pump and a wast