By Michael C. Oballa, Stuart S. Shih
This paintings is predicated at the court cases of the yank Institute of Chemical Engineers' Spring nationwide assembly in Houston, Texas, March 28 to April 1, 1993. It info quite a few elements of residue upgrading and distillate hydrotreating, stressing the significance of selective catalysts in aromatics relief. New aromatics saturation methods for the construction of very low-aromatic distillates are brought.
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Extra info for Catalytic hydroprocessing of petroleum and distillates: based on the proceedings of the AIChE Spring National Meeting, Houston, Texas, March 28-April 1, 1993
7b) showing a gradual factor of 10 increase in HDS activity from the reactor inlet to outlet at the end of the run. In addition to Ni and V, other metals including Pb and As are present at much lower levels in the feedstock and are likewise deposited on the hydrotreating catalyst, although As is more strongly adsorbed than Pb. 7 (a) Metals Deposit as a Function of Position in the Catalyst Bed (15) ; (b) Catalyst Activity at End of Run as a Function of Reactor Position (21) Page 12 reforming catalyst, the maximum concentration of Pb allowable for the hydrotreating feed is about 100 ppb (1).
L. G. Fierro 51. Computer-Aided Design of Catalysts, edited by E. Robert Becker and Carmo J. Pereira 52. Models for Thermodynamic and Phase Equilibria Calculations, edited by Stanley I. Sandler 53. Catalysis of Organic Reactions, edited by John R. Kosak and Thomas A. Johnson 54. Composition and Analysis of Heavy Petroleum Fractions, Klaus H. Altgelt and Mieczyslaw M. Boduszynski 55. NMR Techniques in Catalysis, edited by Alexis T. Bell and Alexander Pines 56. Upgrading Petroleum Residues and Heavy Oils, Murray R.
Six commercial catalysts were evaluated at short term runs and the three most active were used for long term runs. Out of three catalysts tested for deactivation at long term runs, it was possible to choose one whose useful life was higher than the others. All runs were carried out in a Robinson-Mahoney continuous flow stirred tank reactor, using 50/50 volumetric mixture of Cold Lake/Lloydminster atmospheric residue and NiMo/Al2C3 catalyst. Page 34 Introduction Over the past few years, there has been a dwindling of reserves of light and medium crudes all over the world with North America being at the forefront.