Process for improved olefin isomerization

• Main Authors: LEYSHON DAVID W, WATSON RICK B
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

A skeletal isomerization process for isomerizing olefins is described. The process comprises the steps of supplying an olefin-containing feed to the reactor at a first temperature for a first period of time at an airspeed of 1 to 100 hr-1, followed by interrupting or terminating the olefin-containing feed for a second period of time while maintaining the reactor at a second temperature, and then resuming flow of the olefin-containing feed for a third period of time. According to the method disclosed by the invention, the yield of a skeleton isomer product is improved while the generation amount of C5 + heavy olefin is reduced. Additionally, the processes of the present disclosure may be applied to feeds containing isoolefins (for producing linear olefins) or linear olefins (for producing isoolefins). 描述了一种用于异构化烯烃的骨架异构化工艺。该工艺包括以下步骤：在第一温度下以1至100hr-1的空速向反应器供给含烯烃的进料第一时间段，接着是中断或终止含烯烃的进料第二时间段，同时保持反应器在第二温度下，然后恢复含烯烃的进料的流动第三时间段。本公开的方法在降低C5+重质烯烃的产生量的同时提高了骨架异构体产物的产率。附加地，本公开的方法可以应用于含有异烯烃(用于产生线型烯烃)或线型烯烃(用于产生异烯烃)的进料。