Abstrakti
Gas-phase hydrogenation of o-xylene to cis- and trans-dimethylcyclohexane (DMCH) was studied in a differential microreactor at atmospheric pressure and 430-520K over a Ptγ-Al2O3 catalyst. Rapid reversible deactivation of the freshly reduced catalyst prompted reactivation before every kinetic measurement and extrapolation of the steady-state activity to initial activity. Reaction orders were close to zero for o-xylene and ranged from 1.5 (430 K) to 3.0 (520 K) for hydrogen. A rate maximum for the production of the saturated compounds was observed at about 460 K. The results were in line with previously reported results on xylene hydrogenation on Ni/γ-Al2O3 catalyst.
Alkuperäiskieli | Englanti |
---|---|
Sivut | 271-278 |
Sivumäärä | 8 |
Julkaisu | Chemical Engineering Journal |
Vuosikerta | 91 |
Numero | 2-3 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 15 maalisk. 2003 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |