Study of the Product Distribution in the Epoxidation of Propylene over TS-1 Catalyst in a Trickle-Bed Reactor

Matias Alvear,Kari Eränen,Tapio Salmi,Dmitry Yu Murzin

doi:10.1021/acs.iecr.0c06150

Abstract

The synthesis of propylene oxide from propylene and hydrogen peroxide and the side reactions of propylene oxide were studied in a broad range of experimental conditions (25–80 °C, 2.5–8.5 bar) in a...

Highlights

Titanium silicate catalyst (TS-1) developed ca. 40 years ago has been intensively used for a range of catalytic reactions including the synthesis of propylene oxide[1] from propylene and hydrogen peroxide
The aim of the present work was to investigate the synthesis of propylene oxide in a laboratoryscale trickle-bed reactor exploring a broad range of experimental conditions that affect the catalytic performance
The reaction system was sensitive to the experimental parameters studied

Summary

Introduction

Titanium silicate catalyst (TS-1) developed ca. 40 years ago has been intensively used for a range of catalytic reactions including the synthesis of propylene oxide[1] from propylene and hydrogen peroxide. Several studies have been carried out on the modifications of the TS-1 catalyst, including changes in hydrophobicity[3,4,8,11−13] and the addition of metal.[9,14−20] These modifications improved the epoxide selectivity without altering significantly the catalyst activity. Many solvents have been used for propylene epoxidation with the highest propylene oxide selectivity exhibited by methanol and acetone,[10] while the highest activity achieved in methanol and ethanol.[30] Kinetic studies have been performed in methanol[5,7] and 2-propanol.[31,32] Methanol was utilized as a solvent in this work to investigate the catalyst durability

Objectives

Methods

Conclusion