Cellulosic ethanol four-tower distillation apparatus

• Main Authors: MA XIAOJIAN, LI HONGLIANG, WANG GENCAN, CHEN JUNYING
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2014
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

The utility model provides a cellulosic ethanol four-tower distillation apparatus and belongs to the technical field of the biomass energy. The cellulosic ethanol four-tower distillation apparatus comprises a first coarse distillation tower, a second coarse distillation tower, a first rectification tower and a second rectification tower; each of the bottom material outlets of the first coarse distillation tower and the first rectification tower is divided into two branches, and one branch is connected with a circulating inlet of a corresponding tower kettle by virtue of a heat exchanger, while the other branch is connected with a biogas section pipeline after passing through the heat exchanger; the bottom material outlet of the second coarse distillation tower is divided into two branches, and one branch is connected with a circulating inlet of a second coarse distillation tower kettle by virtue of a heat exchanger, while the other branch is connected with a material inlet formed in the lower part of the firs