| The purpose of this thesis is to investigate the hydrogenation of aromatic compounds and sulfur removal present in diesel fuel through in situ hydrogenation via the water gas shift reaction (WGSR). Naphthalene (NAPH) and benzothiophene (BTH) are the model compounds to represent the aromatic and sulfur contents of diesel fuel, respectively. The H2 generated in situ via the WGSR is utilized in the hydrogenation reaction by employing dispersed catalysts at the temperature of 340°C. The activity of the in situ H2 using an individual model compounds and binary mixtures of the model compounds will be compared. In addition, the activity differences among four types of Mo catalysts (phosphomolybdic acid, molybdic acid, ammonium-heptamolybdate-tetrahydrate and ammonium-tetrathio-molybdate), and four different catalyst concentrations based on Mo metals available in the phosphomolybdic acid catalyst (500, 1000, 1500 and 3000 ppm), will be addressed. (Abstract shortened by UMI.)... |
