Diesel fuel with low aromatic content
Conference contribution, 2011
The purpose of the study was to investigate if adding a second dearomatization step can minimize the concentration of aromatics in low aromatic city diesel. For diesel fuel to be called low aromatics city diesel (MK1 in Sweden), the concentration of aromatics can be 5 % maximum presently. Low aromatic city diesel was reacted with hydrogen gas over a catalyst bed of Pt/Al 2O 3 in a downflow reactor system. This reaction was studied at different pressures and temperatures. The samples were analyzed with a gas chromatograph and a high performance liquid chromatography. It can be seen that a high concentration of low fraction hydrocarbons (gasoline) has been formed at high temperatures. The analysis with the high performance liquid chromatography points at a concentration of aromatics lower than 2 %.