Method and apparatus for production of alcohols

• Main Author: SMIDT, MARTIN
• Format: Patent
• Language: Chinese; English
• Published: 16.02.2024
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

A method for the production of at least one alcohol is provided. The method comprises providing a crude aldehyde stream comprising at least one aldehyde to at least one liquid phase hydrogenation reactor, and hydrogenating the at least one aldehyde in a liquid phase hydrogenation reaction to provide a crude alcohol stream comprising at least one alcohol; recycling a liquid recycle stream comprising the at least one alcohol to the at least one liquid hydrogenation reactor via a recycle cooler in which heat in the liquid recycle stream is recovered; providing the crude alcohol stream to a distillation column and performing distillation on the crude alcohol stream to obtain a purified alcohol stream including the at least one alcohol, and a heavy stream including the at least one alcohol; providing the heavy stream to a stripping column and contacting the heavy stream with a stripping gas comprising at least 20 mol% hydrogen to separate the heavy stream into a recycle stream including the at least one alcohol, a