Acetic acid synthesis catalyst separation and recovery device

• Main Authors: LI GUANHUI, SUN YUDONG, GU XIUXIA, LIU XU, LIU DUO
• Format: Patent
• Language: Chinese; English
• Published: 21.04.2020
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

An acetic acid synthesis catalyst separation and recovery device comprises a pre-separation tower, a cooler, a first separator, a stripping tower, a reboiler, a light component removal tower, a primary cooling cooler, a final cooling cooler, a second separator and a layering device. Through modular and functional partition design, an expensive rhodium catalyst, a cocatalyst that is methyl iodide and crude acetic acid are efficiently separated step by step, the unit product consumption and cost are effectively reduced, and clean and environment-friendly indexes and economic benefits of an acetic acid production process are improved. 一种醋酸合成催化剂分离回收装置，包括预分离塔、冷却器、第一分离器、汽提塔、再沸器、脱轻塔、初冷冷却器、终冷冷却器、第二分离器、分层器。本发明通过模块化、功能分区设计，实现了昂贵的铑催化剂、助催化剂碘甲烷与粗醋酸分步高效分离，有效降低了单位产品消耗与成本，提高了醋酸生产工艺的清洁环保指标和经济效益。