Parametric Study on Intrinsic Reaction for Straight Run Heavy Naphtha Hydrodesulfurization over CoMo/Al2O3 Catalyst | ||
| Engineering and Technology Journal | ||
| Article 6, Volume 36, 2A, February 2018, Pages 146-153 PDF (923.22 K) | ||
| DOI: 10.30684/etj.36.2A.5 | ||
| Authors | ||
| Mohammad F. Abid* 1; Mohammed K. Abdullah1; Salah M. Ali2 | ||
| 1Chemical Engineering Department, University of Technology-Iraq | ||
| 2Ministry of Oil, Baghdad, Iraq | ||
| Abstract | ||
| The present study aimed to investigate the intrinsic reaction of hydrodesulfurization (HDS) for a real Straight Run Heavy Naphtha (SRHN) over CoMo-S/Al2O3 catalyst in a fixed- bed reactor. Influence of the process parameters on sulfur removal was investigated by regulating the temperature (T = 320-380 oC), pressure (P = 20 to 35 bar), weight hour space velocity (WHSV = 2.5 to 5.0 h-1) and catalyst average particle size (dp =361 to 3950 μm). Mears and Weisz-Prater criteria were estimated and utilized to validate the intrinsic reaction condition. Operating variables were optimized at (T = 360 oC, P = 30 bars, WHSV = 2.5 h-1, dp= 361 μm) to obtain an optimum sulfur removal of 93.4% under intrinsic reaction conditions. Experimental results showed that % activity of sulfur removal increases to 93.4% as temperature increased to 360oC but it reduces to 90.3% as space velocity increased to 5.0 h-1. Kinetic parameters of the intrinsic reaction rate were estimated and compared with published data. Long-time test was performed on the sulfided catalyst to investigate its activity. | ||
| Keywords | ||
| Hydrodesulfurization; heavy naphtha; Reaction Kinetics; hydrotreating; catalyst deactivation | ||
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