| Patent Number |
Title Of Patent |
Date Issued |
| 6783662 |
Cavitation enhanced liquid atomization |
August 31, 2004 |
| A cavitation enhanced atomizing process comprises forming a flowing solution of the liquid to be atomized and a lower boiling cavitating liquid. This flowing solution is then contacted with a pressure reducing means, at a temperature below the bubble point of the cavitating liquid in |
| 6454933 |
Fluid atomization process |
September 24, 2002 |
| A process and apparatus for atomizing a fluid is disclosed. The processes and apparatuses are useful for atomizing a feed oil for a fluid cat cracking (FCC) or other suitable process. |
| 6352639 |
Superheating atomizing steam with hot FCC feed oil |
March 5, 2002 |
| An atomizing gas, such as steam, and a hot fluid comprising a hot liquid to be atomized, are passed under pressure, through separate fluid conduits in a heat exchange means, in which the hot liquid heats the steam to a superheat temperature, by indirect heat exchange. The superheated ste |
| 6299760 |
Nickel molybodtungstate hydrotreating catalysts (law444) |
October 9, 2001 |
| A hydrodenitrogenation catalyst is prepared by decomposing a nickel (ammonium) molybdotungstate precursor and sulfiding, either pre-use or in situ, the decomposition product. |
| 6156695 |
Nickel molybdotungstate hydrotreating catalysts |
December 5, 2000 |
| A hydrodenitrogenation catalyst is prepared by decomposing a nickel (ammonium) molybdotungstate precursor and sulfiding, either pre-use or in situ, the decomposition product. |
| 5897768 |
Desulfurization process for removal of refractory organosulfur heterocycles from petroleum strea |
April 27, 1999 |
| Hydrocarbon feeds are upgraded by contact of the stream under hydrodesulfurization (HDS) conditions with a catalyst system comprising a sulfided, transition metal promoted tungsten/molybdenum HDS catalyst, e.g., Ni/Co--Mo/Al.sub.2 O.sub.3 and a solid acid catalyst which is effective |
| 5474670 |
Stacked bed catalyst system for deep hydrodesulfurization |
December 12, 1995 |
| The present invention relates to a method of removing sulfur from a hydrotreating process stream comprising contacting a sulfur containing feedstock with a stacked bed catalyst system comprising a first catalyst bed comprising hydrodesulfurization catalysts followed by a second catal |
| 5454933 |
Deep desulfurization of distillate fuels |
October 3, 1995 |
| A process for providing distillate products which are substantially sulfur free, which process comprises subjecting a distillate stream to conventional hydrodesulfurization conditions including a catalyst comprised of a Group VI metal and at least one Group VIII metal on a refractory |
| 4973397 |
Hydrotreating process with mixed catalysts |
November 27, 1990 |
| Disclosed is a process for hydrotreating a hydrocarbonaceous feed wherein the feed is contacted in a mixed catalyst bed at a temperature of about 200.degree. C. to 450.degree. C., in the presence of hydrogne, which catalyst bed is comprised of: (a0 one or more catalysts comprised of at |
| 4960506 |
Desulfurization of hydrocarbons using molybdenum or tungsten sulfide catalysts promoted with low |
October 2, 1990 |
| Hydrocarbon feedstocks are selectively hydrodesulfurized by contacting the feedstock in the presence of hydrogen with a predecessor catalyst comprising molybdenum or tungsten sulfide which has been promoted by reaction with a transition metal containing organo-metallic complex wherei |
| 4902404 |
Hydrotreating process with catalyst staging |
February 20, 1990 |
| Disclosed is a process for hydrotreating a hydrocarbonaceous feed wherein the feed is treated with hydrogen, at hydrotreating conditions, in a first catalyst zone containing a conventional hydrotreating catalyst. The treated feed is then further treated in a second catalyst zone containi |
| 4839326 |
Promoted molybdenum and tungsten sulfide catalysts, their preparation and use |
June 13, 1989 |
| This invention relates to a process for the preparation of promoted molybdenum and tungsten sulfide catalysts, the catalysts prepared by such process, and to the use of such catalysts for hydroprocessing processes, particularly hydrotreating. More particularly, this invention relates to |
| 4831002 |
Cr-promoted hydrotreating catalysts |
May 16, 1989 |
| Self-promoted molybdenum and tungsten sulfide hydrotreating catalysts are prepared by heating one or more water soluble catalyst precursors in a non-oxidizing atmosphere in the presence of sulfur at a temperature of at least about 200.degree. C. The precursors are (Cr.sub.x M.sub.1-x |
| 4824820 |
Hydrotreating catalysts comprising a mixture of a sulfide of a promoter metal, amorphous sulfide |
April 25, 1989 |
| A composition of matter comprising a mixture of (i) a sulfide of at least one promoter metal selected from the group consisting of Ni, Co, Mn, Cu, Zn and mixture thereof and mixtures thereof with Fe, (ii) an amorphous sulfide of trivalent chromium and (iii) microcrystallites of metal sul |
| 4820677 |
Amorphous, iron promoted Mo and W sulfide hydroprocessing catalysts and process for their prepar |
April 11, 1989 |
| Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a catalyst comprising an amorphous sulfide of iron and a metal selected from the group consisting of Mo, W and mixture thereof. The catalysts are prepared by heating one or |
| 4812227 |
Hydrotreating with catalysts comprising mixtures of an amorphous sulfide or trivalent chromium a |
March 14, 1989 |
| A process for the hydrorefining of hydrocarbon feed to reduce the contents of sulfur and nitrogen compounds therein is disclosed which comprises contacting the hydrocarbon feed at elevated temperatures of at least about 150.degree. C. in the presence of hydrogen with a catalyst consistin |
| 4801570 |
Process for preparing a supported, promoted molybdenum and/or tungsten sulfide hydroprocessing c |
January 31, 1989 |
| This invention relates to the preparation and use of supported, manganese sulfide promoted molybdenum and tungsten sulfide catalysts useful for hydroprocessing processes, particularly hydrotreating. These catalysts are prepared by heating a composite of support material and precursor sal |
| 4792541 |
Hydrotreating catalysts comprising supported, mixed metal sulfide of iron promoted Mo and W and |
December 20, 1988 |
| This invention relates to the preparation and use of catalysts useful for hydroprocessing processes, such as hydrotreating, wherein said catalysts are formed by heating, at elevated temperature, in the presence of sulfur and under oxygen-free conditions, a composite of support material a |
| 4755496 |
Supported transition metal sulfide promoted molybdenum or tungsten sulfide catalysts and their u |
July 5, 1988 |
| Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a supported self-promoted catalyst prepared by heating a composite of support material and one or more catalyst precursor salts under oxygen-free conditions and in the p |
| 4749673 |
Hydrotreating catalysts comprising supported mixtures of a sulfide of trivalent chromium and mol |
June 7, 1988 |
| Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and Mo, W or mixture thereof are obtained by compositing a preselected quantity of support material with a precursor comprising a mixture of (i) a hydrated oxide of trivalent chromium and (ii) a salt conta |
| 4748142 |
Supported chromium-molybdenum and tungsten sulfide catalysts |
May 31, 1988 |
| Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and molybdenum or tungsten which optionally may contain one or more promoter metals such as Co, Fe, Ni and mixture thereof. These catalysts are obtained by compositing a preselected quantity of support mat |
| 4721558 |
Hydrotreating catalysts comprising a mixture of a sulfide of a promoter metal amorphous sulfide |
January 26, 1988 |
| A composition of matter comprising a mixture of (i) a sulfide of at least one promoter metal selected from the group consisting of Ni, Co, Mn, Cu, Zn and mixture thereof and mixtures thereof with Fe, (ii) an amorphous sulfide of trivalent chromium and (iii) microcrystalline of metal sulf |
| 4716139 |
Amorphous sulfide catalysts of trivalent chromium and promoter metals and method of making same |
December 29, 1987 |
| A catalyst composition comprising an amorphous sulfide of trivalent chromium and at least one metal selected from the group consisting of (a) molybdenum, tungsten and mixture thereof and (b) mixtures of (a) with Fe, Ni, Co, Mn, Cu, Zn and mixture thereof is prepared by heating one or mor |
| 4705619 |
Hydroprocessing with self-promoted molybdenum and tungsten sulfide catalyst |
November 10, 1987 |
| Hydrocarbon feeds are upgraded by contacting same, at elevated temperature and in the presence of hydrogen, with a self-promoted catalyst prepared by heating one or more water soluble catalyst precursors in a non-oxidizing atmosphere in the presence of sulfur at a temperature of at least |
| 4698145 |
Supported transition metal sulfide promoted molybdenum or tungsten sulfide catalysts and their u |
October 6, 1987 |
| Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a supported self-promoted catalyst prepared by heating a composite of support material and one or more catalyst precursor salts under oxygen-free conditions and in the p |
| 4668376 |
Supported, Mn sulfide promoted Mo and W sulfide hydroprocessing catalysts and uses thereof |
May 26, 1987 |
| This invention relates to the preparation and use of supported, manganese sulfide promoted molybdenum and tungsten sulfide catalysts useful for hydroprocessing processes, particularly hydrotreating. These catalysts are prepared by heating a composite of support material and precursor sal |
| 4666878 |
Amorphous, iron promoted Mo and W sulfide hydroprocessing catalysts and uses thereof |
May 19, 1987 |
| Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a catalyst comprising an amorphous sulfide of iron and a metal selected from the group consisting of Mo, W and mixture thereof. The catalysts are prepared by heating one or |
| 4663023 |
Hydrotreating with self-promoted molybdenum and tungsten sulfide catalyst |
May 5, 1987 |
| Hydrocarbon feeds are upgraded by contacting same, at elevated temperature and in the presence of hydrogen, with a self-promoted catalyst prepared by heating one or more water soluble catalyst precursors in a non-oxidizing atmosphere in the presence of sulfur at a temperature of at least |
| 4632747 |
Hydrotreating process employing catalysts comprising a supported, mixed metal sulfide iron promo |
December 30, 1986 |
| This invention relates to the preparation and use of catalysts useful for hydroprocessing processes, such as hydrotreating, wherein said catalysts are formed by heating, at elevated temperature, in the presence of sulfur and under oxygen-free conditions, a composite of support material a |
| 4626339 |
Supported chromium-molybdenum and tungsten sulfide catalysts |
December 2, 1986 |
| Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and molybdenum or tungsten which optionally may contain one or more promotor metals such as Co, Fe, Ni and mixture thereof. These catalysts are obtained by comprising a preselected quantity of support mate |
| 4622128 |
Hydrotreating catalysts comprising supported mixtures of a sulfide of trivalent chromium and mol |
November 11, 1986 |
| Supported hydroprocessing catalysts comprising a sulfide of trivalent chromium and Mo, W or mixture thereof are obtained by compositing a preselected quantity of support material with a precursor comprising a mixture of (i) a hydrated oxide of trivalent chromium and (ii) a salt conta |
| 4595672 |
Method of making self-promoted hydrotreating catalysts |
June 17, 1986 |
| Self-promoted molybdenum and tungsten sulfide hydrotreating catalysts are prepared by heating one or more water soluble catalyst precursors in a non-oxidizing atmosphere in the presence of sulfur at a temperature of at least about 200.degree. C. The precursors will be one or more compoun |
| 4591429 |
Hydrotreating process employing catalysts comprising a supported mixture of a sulfide of a promo |
May 27, 1986 |
| Supported, hydroprocessing catalysts comprising a sulfide of (i) trivalent chromium, (ii) Mo, W or mixture thereof and (iii) at least one metal selected from the group consisting of Ni, Co, Mn, Cu, Zn and mixture thereof and mixture thereof with Fe. These catalysts are made by compos |
| 4581125 |
Hydrotreating using self-promoted molybdenum and tungsten sulfide catalysts formed from bis(tetr |
April 8, 1986 |
| Hydrocarbon feeds are upgraded by contacting same, at elevated temperature and in the presence of hydrogen, with a self-promoted catalyst formed by heating one or more carbon-containing, bis(tetrathiometallate) catalyst precursor salts selected from the group consisting of (NR.sub.4).sub |
| 4514517 |
Supported, self-promoted molybdenum and tungsten sulfide catalysts formed from bis(tetrathiometa |
April 30, 1985 |
| Hydrocarbon feeds are upgraded by contacting a feed, at an elevated temperature and in the presence of hydrogen, with a supported, self-promoted catalyst formed by compositing a porous, refractory inorganic oxide, support with one or more complex salts selected from the group consist |
