کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
43115 | 45955 | 2008 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Gas phase adsorption and desorption kinetics of toluene on Ni/γ-Al2O3 Gas phase adsorption and desorption kinetics of toluene on Ni/γ-Al2O3](/preview/png/43115.png)
Step adsorption–temperature-programmed desorption cycles of toluene on Ni/Al2O3 and pure γ-Al2O3 were carried out with different flushing times and heating rates. The aim was to obtain information to support hydrogenation studies, and results useful for modelling of toluene hydrogenation. Adsorption was weak and reversible on both samples, and no deactivation was observed. The major part of the toluene adsorbed on the support of the Ni catalyst. The experimental results on Ni/Al2O3 were utilised in transient kinetic modelling. A model in which surface heterogeneity was represented with two different Langmuir-type adsorption sites described the experimental data well.
Step adsorption–TPD cycles of toluene on Ni/Al2O3 (figure) and pure γ-Al2O3 were carried out with different flushing times and heating rates. Adsorption was weak and reversible on both samples. The major part of the toluene adsorbed on the support of the Ni catalyst. A kinetic model in which surface heterogeneity was represented with two different Langmuir-type adsorption sites described the experimental data well.Figure optionsDownload as PowerPoint slide
Journal: Applied Catalysis A: General - Volume 344, Issues 1–2, 15 July 2008, Pages 183–190