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: 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 novel process for atomizing a liquid stream is disclosed and includes introducing the liquid to a nozzle including a fluid conduit, an outlet orifice and swirl-imparting means thereby at least partially atomizing the liquid stream to form an atomized liquid stream. Preferably, the atomized liquid stream does not contact a fluid deflecting device upon exit from the outlet orifice. This novel process can be utilized in a fluidized catalytic cracking process prior to contact with a fluidized catalyst or in a coking process for atomizing an oil stream.

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 novel apparatus and process, including a perforated-pipe sparger, for atomizing a liquid stream is disclosed. This novel apparatus and process can be utilized in a fluidized catalytic cracking process or in a coking process for atomizing an oil stream prior to contact with a fluidized catalyst.

Abstract: A novel apparatus and process, including a baffle, for contacting a first fluid with a second fluid of lower density than the first fluid in counter-current flow in a manner that increases the contacting efficiency.

Abstract: An improved apparatus and method for the fluidized catalytic cracking (FCC) of hydrocarbons. Turbulence generation means disposed on the internal surface of an FCC riser-reactor are utilized to provide for a more uniform catalyst flow pattern within the riser-reactor and to thereby provide for a better conversion and product slate.

Abstract: This invention concerns an apparatus and process for effectively contacting oil, catalyst, and a gas. This invention has specific applications in the design and operation of catalytic cracking units and specifically, the processing and upgrading of heavy oils to higher valued components.

Abstract: Catalytic regenerators, nozzle designs and processes suitable for introducing regeneration air into a catalytic cracking unit which substantially reduce erosion induced nozzle failures include a plurality of nozzle elements having a roughness defined upon the outside surface of said nozzle elements so as to reduce erosion due to the impact of fluidized catalyst particles within the catalytic regenerator.