摘要
采用频率响应技术和程序升温脱附技术,研究了模型化合物(噻吩和苯)在液相CeY(L-CeY)分子筛上的吸附扩散性能。结果表明,在L-CeY分子筛上,噻吩传质过程为吸附过程,同时存在低频吸附和高频吸附,且通过S—Ce和π络合作用2种方式吸附。苯在L-CeY分子筛上传质过程为扩散过程,作用力较弱,通过π络合作用吸附。
Adsorption and diffusion behaviors of model compounds thiophene and benzene in liquid phase CeY （ L - CeY） zeolites were investigated by using the frequency response method and the temperature - programmed desorption technique. The results showed that the mass transfer of thiophene was conducted by the high frequency adsorption and low frequency adsorption occurred in the system through the direct S--Ce and π interactions in L - CeY zeolites. Benzene was adsorbed weakly via π interactions, its mass transfer was a diffusion process.
出处
《石化技术与应用》
CAS
2013年第3期207-210,共4页
Petrochemical Technology & Application
基金
国家自然科学基金资助项目(项目编号:210761001)
关键词
噻吩
苯
频率响应
L—CeY分子筛
吸附扩散
thiophene
benzene
frequency response
L - CeY zeolites
adsorption and diffusion
