We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
EXPERIMENTAL AND KINETICS STUDIES OF AROMATIC HYDROGENATION IN A TWO-STAGE HYDROTREATING PROCESS USING NIMO/AL<sub>2</sub>0<sub>3</sub> AND NIW/AL<sub>2</sub>0<sub>3</sub> CATALYSTS.
- Authors
Owusu-Boakye, Abena; Dalai, Ajay K.; Ferdous, Deena; Adjaye, John
- Abstract
In this work, hydrogenation of aromatic compounds in light gas oil derived from Athabasca bitumen was carried out using a single- and two-stage hydrotreating processes. Experiments were performed in a trickle-bed reactor using two catalysts namely NiMo/Al2O3 and NiW/Al2O3. NiMo/Al2O3 was used in the first stage for nitrogen and sulphur containing heteroatoms removal whereas NiW/Al2O3 was used n the second stage for saturation of the aromatic rings in the hydrocarbon species. Temperature and liquid hourly space velocity (LHSV) were varied from 350-390°C and 1.0-1.5 h-1, respectively, while pressure was maintained constant at 11.0 MPa for all experiments. Results from single-stage were compared with those from two-stage process on the basis of reaction time. Kinetic analysis of the single-stage hydrotreating process showed that HDA and HDS activities were retarded by the presence of hydrogen sulphide that is produced as a by-product of the HDS process. However, with inter-stage removal of hydrogen sulphide in the two-stage process, significant improvement of the HDA and HDS activities were observed.
- Subjects
HYDROGENATION; AROMATIC compounds; ORGANIC cyclic compounds; HYDROTREATING catalysts; TRICKLE bed reactors; HYDROGEN sulfide
- Publication
Canadian Journal of Chemical Engineering, 2006, Vol 84, Issue 5, p572
- ISSN
0008-4034
- Publication type
Article