Abstract: A method and apparatus for removing sulfur from a hydrocarbon-containing fluid stream wherein desulfurization is enhanced by improving the contacting of the hydrocarbon-containing fluid stream and sulfur-sorbing solid particulates in a fluidized bed reactor.

Abstract: A system for removing sulfur from a hydrocarbon-containing fluid stream wherein regeneration of sulfur-loaded sorbent particulates is enhanced by improving the contacting of an oxygen-containing regeneration stream and the sulfur-loaded solid particulates in a fluidized bed regenerator.

Abstract: A method and apparatus for removing sulfur from a hydrocarbon-containing fluid stream wherein desulfurization is enhanced by improving the contacting of the hydrocarbon-containing fluid stream and sulfur-sorbing solid particulates in a fluidized bed reactor.

Abstract: A system for enhancing fluid/solids contacting in a fluidization reactor by controlling the particle size distribution of the solid particulates in the reactor.

Abstract: Fluid/solids contacting in a fluidization reactor is enhanced by passing the fluidization fluid through a fine screen positioned below the fluidized bed of solid particulates, thereby decreasing axial dispersion in the reactor.

Abstract: A hydrocarbon desulfurization system employing regenerable solid sorbent particulates in a fluidized bed desulfurization reactor. The sulfur-loaded sorbent particulates are continuously withdrawn from the reactor and transferred to a regenerator. A novel solids transport mechanism provides for the safe and effective transfer of the sulfur-loaded sorbent particulates from the high pressure hydrocarbon environment of the reactor to the low pressure oxygen environment of the regenerator.

Abstract: A method and apparatus for removing sulfur from a hydrocarbon-containing fluid stream wherein desulfurization is enhanced by improving the contacting of the hydrocarbon-containing fluid stream and sulfur-sorbing solid particulates in a fluidized bed reactor.

Abstract: In a desulfurization process for the removal of organosulfur compounds from a hydrocarbon fluid stream such as cracked-gasoline or diesel fuel wherein a bifunctional sorbent system is employed, surface treatment of the bifunctional sorbent during the use of same for desulfurization results in an extension of the useful life of the bifunctional sorbent prior to the regeneration and reactivation of same for further use in the desulfiurization of the hydrocarbon fluid stream.

Abstract: The invention provides an improved alkylation process and reactor apparatus. The invention utilizes a vessel containing a riser-reactor conduit, an acid settler and an acid cooler. Hydrocarbons are introduced beneath said riser-reactor conduit, mixed with acid catalyst, and passed generally upwards through the riser-reactor conduit to enter the acid settler. Within the acid settler, alkylate is separate from the acid catalyst and is removed from the vessel. Acid catalyst from the acid settler is cooled in the internal acid coolers and returned to the region beneath the riser-reactor conduit.

Abstract: Method and apparatus are provided whereby a hydrocarbon gas and liquid mixture is separated into a first fluid and a second fluid. The first fluid is vaporized to form a vapor which is commingled with the second fluid. The commingled fluid is passed through a superheating exchange means wherein the commingled fluid is superheated prior to passing to a flare for combustion.

Abstract: An improved process and apparatus is disclosed for rejecting nitrogen from a gaseous nitrogen-methane mixture while the nitrogen content of the mixture varies widely. The process, which is especially suited for recovery of nitrogen in an enhanced oil reservoir flooding project which employs nitrogen for flooding the reservoir; utilizes a modified dual distillation column arrangement including a relatively high pressure fractionator which lacks a conventional reboiler and a low pressure fractionator which lacks a conventional overhead condenser for liquid reflux.

Abstract: A method and apparatus for recovering condensable vapor which is expelled from a container during filling by collecting and compressing the vapor after which the compressed vapor is cooled by cooling means. Upon cooling, a portion of the vapor is condensed after which the condensate is separated from the vapor in a separator. The vapor portion is then placed into heat transfer relation with heat exchange means which is operable to further cool and condense the vapor. The heat exchange means uses a portion of the vapor as the coolant after the vapor has been expanded through expansion means to effect cooling of the coolant vapor. The vapor used as the coolant is then conducted to a point of use. The recovered liquefied portion of the vapor can be returned to the container from which the vapor was displaced.