Effect of triethylamine treatment of titanium silicalite-1 on propylene epoxidation

Outline

Abstract
Keywords

Frontiers of Chemical Science and Engineering

2014, Volume 8, Issue 4, Pages 478-487

PDF
collect

Effect of triethylamine treatment of titanium silicalite-1 on propylene epoxidation

10.1007/s11705-014-1453-7

Cite this article

Abstract

Titanium silicalite-1(TS-1) treated with triethylamine (TEA) solution under different conditions was characterized by X-ray powder diffraction (XRD), Fourier-transform infrared spectrum (FTIR), ultraviolet-visible diffuse reflectance spectrum (UV-Vis), nitrogen physical adsorption and desorption, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The characterization results show that many irregular hollows are generated in the TS-1 crystals due to the random dissolution of framework silicon and the volume of the hollow cavities increase with increasing the TEA concentration, and the treatment temperature and time. The modified TS-1 samples improved in varying degrees the catalyst life for the epoxidation of propylene in a fixed-bed reactor probably due to the generation of the hollows to make it easy for the reactants and products to diffuse out of the channels.

Keywords

titanium silicalite-1 ; triethylamine ; hollow cavity ; epoxidation of propylene ; catalyst life

Previous article in issue

article in issue Next

Outline

Figures(5)

标签(1)

其他(2)

Frontiers of Chemical Science and Engineering

Effect of triethylamine treatment of titanium silicalite-1 on propylene epoxidation

Abstract

Keywords

评论

Outline

Figures(5)

标签(1)

其他(2)

Frontiers of Chemical Science and Engineering

Effect of triethylamine treatment of titanium silicalite-1 on propylene epoxidation

Abstract

Keywords

评论

Related Research