PETR 77 |
| To convert LCO in a good diesel component it is necessary to upgrade its properties. Commercially available options are deep aromatic saturation or mild hydrocracking. An other suitable route is polyaromatics hydrogenation and selective ring opening (SRO) of naphtenic rings. In the present work a two stage HDS/SRO process has been evaluated. By using a SRO catalyst made of noble metals combination on a silico-allumina support, by preferentially increasing the conversion of LCO aromatic compounds to low density alkyl-benzenes and paraffins instead of naphtenic compounds, it has been possible to obtain a product having the same density of fully hydrogenated LCO by saving up to 30% of the hydrogen needed to saturate all the aromatics in the LCO feed. The increase of cetane index was consistent with the use of the product in diesel pool. The selectivity of the process to diesel was 80%, higher than the values reported for mild hydrocracking. |
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3rd International Symposium on Hydrotreating/Hydrocracking Technologies
1:30 PM-4:20 PM, Tuesday, August 21, 2007 Boston Park Plaza -- White Hill Rm, Oral
Division of Petroleum Chemistry |