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| Number | Title | Issue Date |
| 7666364 | FCC closed cyclone with snorkel Thermal cracking in a riser cracking, closed cyclone, fluidized catalytic cracking process is reduced. A snorkel or flow conduit having an inlet just above the catalyst stripper moves stripper vapor into the closed cyclone. The system preferably operates without a s... | 02/23/2010 |
| 7351326 | FCC closed cyclone with snorkel Thermal cracking in a riser cracking, closed cyclone, fluidized catalytic cracking process is reduced. A snorkel or flow conduit having an inlet just above the catalyst stripper moves stripper vapor into the closed cyclone. The system preferably operates without a s... | 04/01/2008 |
| 7318891 | Noah's pitch process A process for producing pitch from pitch precursors, such as wood tar, coal tar or petroleum fractions is disclosed. Direct contact heat exchange of the pitch precursor with molten metal, preferably maintained as a metal continuous bath, heats the pitch precursor to... | 01/15/2008 |
| 7318890 | Pitch fractionation and high softening point pitch A process for fractionating crude pitch by direct contact heating with molten metal is disclosed. The crude pitch, which may contain water, contaminants and/or distillables is heated by direct contact heat exchange with molten metal, preferably maintained as a metal... | 01/15/2008 |
| 7241377 | Salt bath refining A process for heating thermally unstable or difficult to heat liquid feeds, e.g., used lubricating oil (ULO) to dehydrate and/or recover distillable components therefrom, is disclosed. The liquid feed is heated by direct contact heat exchange with molten salt, prefe... | 07/10/2007 |
| 7150822 | Five degrees for separation A process for heating thermally unstable or difficult to heat liquid feeds, e.g., used lubricating oil (ULO) to dehydrate and/or recover distillable components therefrom, is disclosed. The liquid feed is heated by direct contact heat exchange with molten metal, pref... | 12/19/2006 |
| 7052661 | Method for abatement of mercury emissions from combustion gases A process for removing mercury from a feed of coal, heavy oil or other mercury contaminated material is disclosed. The feed is thermally decomposed, preferably within, or above, a molten metal bath under reducing conditions, to produce a vapor product and non-vapor ... | 05/30/2006 |
| 6432149 | Burner-feed multi-zone molten metal syngas generator A gas impermeable vessel carrying a molten metal bath within the vessel bottom includes a downwardly directed baffle from a top wall of the vessel, which penetrates the bath to separate the vessel into a burner feed chamber and an outlet chamber with gas ... | 08/13/2002 |
| 6402937 | "Pumped" recycle vapor A process for the direct contact heating and vaporization of UMO is disclosed. A superheated, but condensable, vapor heats and vaporizes distillable liquid hydrocarbons from a waste motor oil stream, producing an overhead vapor fraction of injected superh... | 06/11/2002 |
| 6402938 | Vaporization of used motor oil with non-hydrogenating recycle vapor Used Motor Oil is re-refined by direct injection of a superheated, non-hydrogenating recycle vapor. The process operates at low pressures, preferably from atmospheric--10 atmospheres absolute. Preferably a significant amount of the energy required to vapo... | 06/11/2002 |
| 6403659 | Sealer from SDA asphalt An asphalt based sealer for driveways and the like is disclosed. The material uses a blend of solvent deasphalted (SDA) asphalt blended with a cutter stock as the binder or sealer base. Driveway sealer (an emulsion of clay, water and binder) made with thi... | 06/11/2002 |
| 6383365 | Low softening point petroleum pitch and sealer A 40 petroleum pitch is disclosed. A high melting point petroleum pitch is blended with a high boiling normally liquid petroleum derived hydrocarbon stream to form a mixture having a softening point of 35-45 C. as a partial or complete replacement for coa... | 05/07/2002 |
| 6361591 | Sealer from asphalt and pitch A better asphalt based sealer for driveways and the like is disclosed. The material uses as a hybrid sealer base or binder comprising a blend of pitch, asphaltic material and cut-back oil as a partial or complete replacement for pure coal tar materials. D... | 03/26/2002 |
| 6352637 | High coking value pitch A high coking value pitch with a relatively low softening point is disclosed. A pitch is distilled or thermally processed to produce an intermediate pitch with an increased coking value and relatively high softening point, then blended with a cutter solve... | 03/05/2002 |
| 6350289 | Two-zone molten metal hydrogen-rich and carbon monoxide-rich gas generation process A high pressure two-zone molten iron gasification process for converting solid, liquid and gaseous hydrocarbon feeds into separate substantially hydrogen-rich and carbon monoxide-rich streams at 2 to 200 atmospheres pressure by feeding hydrocarbons into t... | 02/26/2002 |
| 6315802 | H2S production from a molten metal reactor Hydrogen sulfide is produced by charging a sulfur containing feed to a molten metal bath containing over 3 wt. % dissolved carbon. Allowing dissolved carbon levels to build up in the bath, preferably by controlling oxygen addition to ensure a large invent... | 11/13/2001 |
| 6270657 | Asphalt blend compositions containing used motor oil and asphalt pavement compositions containing said asphalt blend compositions An asphalt blend composition containing an asphalt component and a bottoms fraction from a used motor vaporization process of the above process, and a pavement composition comprising aggregate and the asphalt blend composition. The process comprises direc... | 08/07/2001 |
| 6241806 | Recovering vanadium from petroleum coke as dust A continuous process for recovering vanadium values from petroleum coke is disclosed. A vanadium containing coke is charged to a molten metal bath to which oxygen containing gas is added in an amount sufficient to heat balance the process and produce off ... | 06/05/2001 |
| 6235253 | Recovering vanadium oxides from petroleum coke by melting A process for recovering and purifying vanadium found in petroleum coke is disclosed. Coke containing V and other metals such as Ni is charged to a molten metal bath and dissolved to form a molten metal bath with dissolved carbon, dissolved V metal and di... | 05/22/2001 |
| 6231640 | Dissolving petroleum coke in molten iron to recover vanadium metal A process for the recovery of vanadium from a petroleum coke or heavy hydrocarbon feed comprising dissolving the feed in a molten metal bath to which oxygen containing gas is added to maintain heat balance and bum off carbon. Preferably the feed is added ... | 05/15/2001 |
| 6194337 | Cracking catalyst with high magnetic susceptibility A catalytic cracking catalyst comprising zeolite, kaolin, alumina and/or silica, antimony and 100-5,000 wt. ppm Ni is disclosed. The Ni-antimony interact in the environment of a fluidized catalytic cracking reactor to increase the magnetic susceptibility ... | 02/27/2001 |
| 6187986 | Fresh plant inventory hydrofluoric acid eduction process A slipstream of high pressure, cooled isobutane recycle from within an alkylation process unit is used to withdraw hydrofluoric acid from a storage vessel by means of an eductor and discharges the same into a reactor section of the unit. The eductor is pr... | 02/13/2001 |
| 6163738 | Point of purchase gasoline analyzing/blending Two, preferably three or more gasoline (or other fuel) blending components are delivered to a point adjacently point of sale to the motorist and are blended by an apparatus which proportions the flow of individual components in response to signals indicat... | 12/19/2000 |
| 6153004 | Safe sulfur slurry A sulfur in oil in asphalt blend is disclosed. A polymer-free slurry of solid, elemental, sulfur in liquid oil is used to add sulfur to asphalt. Addition of a slurry of solid sulfur in oil, or oil containing sulfur compounds, permits rapid and effective d... | 11/28/2000 |
| 6133351 | Sulfur-in-oil in asphalt and polymer composition and process A sulfur in oil in asphalt and polymer blend is disclosed. An asphalt and polymer blend is first prepared and then a slurry of solid sulfur in liquid oil added. Addition of a slurry of solid sulfur in oil or oil containing sulfur compounds, permits rapid ... | 10/17/2000 |
| 5972201 | Hydrocarbon conversion catalyst additives and processes Magnetic separation of fluid cracking catalyst and magnetic hooks can be improved by adding antimony, in the feed or during catalyst manufacture, to enhance the magnetic susceptibility, thus increasing the separation efficiency of the older less active fl... | 10/26/1999 |
| 4871446 | Catalytic cracking process employing mixed catalyst system A catalytic cracking process is disclosed which comprises catalytically cracking a hydrocarbon charge stock in a catalytic cracking unit possessing at least one reaction zone, stripping zone and catalyst regeneration zone to provide a gasiform product emp... | 10/03/1989 |
| 4868144 | Process to reduce NOx emissions from a fluid catalytic cracking unit A multistage process for reducing NOx in flue gas from fluid catalytic cracking catalyst regeneration. Flue gas is preferably removed after each stage. NOx formed in each regeneration stage is converted to N2 prior to disc... | 09/19/1989 |
| 4857297 | Process for the reduction of the sulfur content in a gaseous stream H2 S is directly oxidized to elemental sulfur by contacting an H2 S containing gas stream having a water content less than 10% by volume with air or oxygen over a catalyst containing at least 80 wt % titanium dioxide. Most of the H | 08/15/1989 |
| 4853187 | Apparatus to reduce NOx emissions from a fluid catalytic cracking unit A multistage process for reducing NOx in flue gas from fluid catalytic cracking catalyst regeneration. flue gas is preferably removed after each stage. A portion of NOx formed in an upstream portion of first and second regeneration s... | 08/01/1989 |
| 4853105 | Multiple riser fluidized catalytic cracking process utilizing hydrogen and carbon-hydrogen contributing fragments A catalytic cracking process is provided which comprises: (a) cracking a first heavy hydrocarbon feed in a first riser in the presence of a mixed catalyst composition comprising, as a first catalyst component, an amorphous cracking catalyst and/or a large pore... | 08/01/1989 |
| 4830728 | Upgrading naphtha in a multiple riser fluid catalytic cracking operation employing a catalyst mixture A catalytic cracking process is provided featuring multiple risers in which a variety of hydrocarbon conversion reactions take place, a stripping unit in which entrained hydrocarbon material is removed from catalyst and a regeneration zone in which spent ... | 05/16/1989 |
| 4820404 | Cooling of stripped catalyst prior to regeneration in cracking process A fluid catalytic cracking process and apparatus is described which includes a high temperature stripper (hot stripper) to control the carbon level and sulfur on spent catalyst, followed by catalyst cooling to control the regeneration inlet temperature. T... | 04/11/1989 |
| 4814068 | Fluid catalytic cracking process and apparatus for more effective regeneration of zeolite catalyst A multistage process and apparatus for regenerating fluid catalytic cracking catalyst is disclosed. Each stage preferably has a successively higher temperature, and flue gas is removed after each stage. The process may regenerate a single phase catalyst o... | 03/21/1989 |
| 4812431 | NOx control in fluidized bed combustion Coke is removed from particulate catalyst by passing the coke-containing catalyst into a regenerator containing a fluidized dense bed of catalyst. An oxygen containing gas is added to the regenerator to burn coke from catalyst. The dense bed has a reducin... | 03/14/1989 |
| 4812430 | NOx control during multistage combustion An FCC regenerator comprising a first dense bed coke combuster, a dilute phase transport riser, and a second dense bed operates with selective addition of CO combustion catalyst downstream of the coke combustor and preferably into the dilute phase transpo... | 03/14/1989 |
| 4802971 | Single riser fluidized catalytic cracking process utilizing hydrogen and carbon-hydrogen contributing fragments A catalytic cracking process is disclosed which comprises: (a) thermally and/or catalytically cracking a hydrogen-rich hydrocarbon feed in the lower region of a riser reactor in the presence of a catalyst composition comprising a first catalyst component, and,... | 02/07/1989 |
| 4789458 | Fluid catalytic cracking with plurality of catalyst stripping zones A fluid catalytic cracking (FCC) process and apparatus is described which includes a high temperature stripper (hot stripper) to control the carbon level, hydrogen level, and sulfur level on spent catalyst, followed by single or multi-stage regeneration. ... | 12/06/1988 |
| 4784748 | FCC unit combined with a circulating fluid bed combustor The invention combines two unit operations i.e. fluid catalytic cracking (FCC) and circulating fluid bed (CFB) boiler technologies. The circulating solid inventory of the CFB boiler is introduced to the bottom of a conventional FCC unit to supply the endo... | 11/15/1988 |
| 4518485 | Hydrotreating/isomerization process to produce low pour point distillate fuels and lubricating oil stocks A process for dewaxing a hydrocarbon feedstock with a relatively high pour point and containing paraffins selected from the group of normal paraffins and slightly branched paraffins and sulfur and nitrogen compounds which comprises subjecting said oil to ... | 05/21/1985 |
