BUILT-IN MICRO-INTERFACE UNIT-TYPE ENHANCED REACTION SYSTEM FOR PRODUCING PTA THROUGH PX AND PROCESS THEREOF

• Main Authors: ZHANG ZHIBING, WANG BAORONG, TIAN HONGZHOU, LUO HUAXUN, ZHOU ZHENG, CHO HO, YANG GUOQIANG, LI LEI, MENG WEIMIN, CAO YU
• Format: Patent
• Language: English; Japanese
• Published: 18.02.2021
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

To effectively solve the problems that a large amount of acetic acid as a reaction solvent is wasted at high temperature and high pressure, and a product TA cannot be taken out in time in the existing process of producing PTA, so as to substantially reduce the energy consumption, save the acetic acid solvent, and improve the reaction efficiency.SOLUTION: The present invention provides a built-in micro-interface unit-type enhanced reaction system. The system comprises a reactor and a micro-interface unit arranged in the reactor. The reactor comprises a housing, an inner barrel concentrically arranged in the housing, and a circulating heat exchange device arranged outside the housing. A bottom end of the inner barrel is closed and connected to an inner bottom surface of the housing, an area between the housing and the inner barrel is a first reaction zone, a second reaction zone and a third reaction zone are sequentially arranged in the inner barrel from top to bottom, and the circulating heat exchange device is connected to the inner barrel and the micro-interface unit.SELECTED DRAWING: Figure 1 【課題】本発明は、従来のＰＴＡの製造プロセスにおいて、反応溶媒としての酢酸が高温高圧下で多く浪費されているとともに、製品ＴＡを時間内に取り出せない問題を効果的に解決し、エネルギー消費を大幅に削減し、酢酸溶媒を節約し、反応効率を向上させることができる。【解決手段】本発明はマイクロインターフェースユニット内蔵型強化反応システムを提供し、該システムは、反応器及び前記反応器の内部に設けられるマイクロインターフェースユニットを含み、反応器がハウジング、ハウジングの内部に同心状に配置される内筒、及びハウジングの外部に配置される循環熱交換装置を含み、内筒の底端が閉じてハウジングの内部底面に接続され、ハウジングと内筒との間の領域が第１反応ゾーンであり、内筒の内部には、上から下へ順次第２反応ゾーン及び第３反応ゾーンがあり、循環熱交換装置がそれぞれ内筒及びマイクロインターフェースユニットに接続されている。【選択図】図１