Table 2. Gas-Phase Thiophene HDS Reaction Rates and Liquid-Phase Dibenzothiophene HDS Reaction Rate Constants of A (Sulfide) and B (Sulfide).

	thiophene		DBT					gas-oil
					selectivity
catalyst	reaction rates (mol molMo–1 h–1)	conversion (%)	reaction temperature (°C)	conversion (%)	BP	CHB	reaction rate constants (mol molMo–1 h–1)	reaction rate constants (mol molMo–1 h–1)
A (sulfide)	53.4 ± 0.8	46.1	230	7.6	90.0	10.0	3.4	4.96
			250	16.7	83.8	16.2	7.8
			270	34.1	75.6	24.4	17.7
B (sulfide)	101.9 ± 0.8	87.2	230	25.4	57.8	42.2	12.5	22.31
			250	51.3	54.3	45.7	30.6
			270	85.2	50.7	49.3	81.2