A method of desulfurizing a liquid hydrocarbon comprising the steps of: (a) adding a liquid hydrocarbon to a first vessel, the hydrocarbon having a first sulfur content; (b) adding a first catalyst and a first oxidizer to the first vessel create a first mixture; (c) oxidizing at least some of the sulfur content of the liquid hydrocarbon to form oxidized sulfur in the liquid hydrocarbon within the first vessel; (d) separating the liquid hydrocarbon and oxidized sulfur from within the first mixture; (e) directing the liquid hydrocarbon and oxidized sulfur into a second vessel, the hydrocarbon having a second sulfur content that is lower than the first sulfur content; (f) adding a second catalyst and a second oxidizer to the second vessel to create a second mixture; (g) oxidizing at least some of the sulfur content of the liquid hydrocarbon to form additional oxidized sulfur in the liquid hydrocarbon within the second vessel; (h) separating the liquid hydrocarbon and oxidized sulfur from within the second mixture; and (i) removing the liquid hydrocarbon and oxidized sulfur from within the second vessel, the liquid hydrocarbon having a third sulfur content which is lower than the second sulfur content, wherein the liquid hydrocarbon and oxidizer travels sequentially from the first vessel to the second vessel, while at least a portion of the catalyst travels in an opposite direction within the system, preferably wherein the step of oxidizing at least some of the sulfur content within at least one of the first vessel and the second vessel further comprises at least one of the steps of: (a') agitating the first mixture within the first vessel; (b') heating the first mixture within the first vessel; (c') cooling the first mixture within the first vessel; and (d') recirculating the first mixture within the first vessel, more preferably wherein the step of agitating the first mixture further comprises the step of directing the first mixture through a shear device. (a) adding a liquid hydrocarbon to a first vessel, the hydrocarbon having a first sulfur content; (b) adding a first catalyst and a first oxidizer to the first vessel create a first mixture; (c) oxidizing at least some of the sulfur content of the liquid hydrocarbon to form oxidized sulfur in the liquid hydrocarbon within the first vessel; (d) separating the liquid hydrocarbon and oxidized sulfur from within the first mixture; (e) directing the liquid hydrocarbon and oxidized sulfur into a second vessel, the hydrocarbon having a second sulfur content that is lower than the first sulfur content; (f) adding a second catalyst and a second oxidizer to the second vessel to create a second mixture; (g) oxidizing at least some of the sulfur content of the liquid hydrocarbon to form additional oxidized sulfur in the liquid hydrocarbon within the second vessel; (h) separating the liquid hydrocarbon and oxidized sulfur from within the second mixture; and (i) removing the liquid hydrocarbon and oxidized sulfur from within the second vessel, the liquid hydrocarbon having a third sulfur content which is lower than the second sulfur content, wherein the liquid hydrocarbon and oxidizer travels sequentially from the first vessel to the second vessel, while at least a portion of the catalyst travels in an opposite direction within the system, preferably wherein the step of oxidizing at least some of the sulfur content within at least one of the first vessel and the second vessel further comprises at least one of the steps of: (a') agitating the first mixture within the first vessel; (b') heating the first mixture within the first vessel; (c') cooling the first mixture within the first vessel; and (d') recirculating the first mixture within the first vessel, more preferably wherein the step of agitating the first mixture further comprises the step of directing the first mixture through a shear device. wherein the liquid hydrocarbon and oxidizer travels sequentially from the first vessel to the second vessel, while at least a portion of the catalyst travels in an opposite direction within the system, preferably wherein the step of oxidizing at least some of the sulfur content within at least one of the first vessel and the second vessel further comprises at least one of the steps of: (a') agitating the first mixture within the first vessel; (b') heating the first mixture within the first vessel; (c') cooling the first mixture within the first vessel; and (d') recirculating the first mixture within the first vessel, (a') agitating the first mixture within the first vessel; (b') heating the first mixture within the first vessel; (c') cooling the first mixture within the first vessel; and (d') recirculating the first mixture within the first vessel, more preferably wherein the step of agitating the first mixture further comprises the step of directing the first mixture through a shear device.