1
Marc A Anderson, Simonetta Tunesi, Qunyin Xu: Degradation of organic chemicals with titanium ceramic membranes. Wisconsin Alumni Research Foundation, Quarles & Brady, July 30, 1991: US05035784 (87 worldwide citation)

Complex organic molecules, such as polychlorinated biphenyls can be degraded on porous titanium ceramic membranes by photocatalysis under ultraviolet light.


2
Stuart L Soled, Sabato Miseo, Roman Krycak, Hilda Vroman, Teh C Ho, Kenneth L Riley: Nickel molybodtungstate hydrotreating catalysts (law444). Exxon Research and Engineering Company, Paul E Purwin, October 9, 2001: US06299760 (78 worldwide citation)

A hydrodenitrogenation catalyst is prepared by decomposing a nickel (ammonium) molybdotungstate precursor and sulfiding, either pre-use or in situ, the decomposition product.


3
Tsoung Y Yan: Use of dilute aqueous solutions of alkali polysulfides to remove trace amounts of mercury from liquid hydrocarbons. Mobil Oil Corporation, A J McKillop, C J Speciale, R B Furr Jr, April 10, 1990: US04915818 (78 worldwide citation)

Disclosed is a method of removing mercury from contaminated liquid hydrocarbons (natural gas condensate) by contacting them with a dilute aqueous solution of alkali metal sulfide salt and recovering the treated liquid hydrocarbon. The addition of alkali metal hydroxide enhances the phase separation ...


4
John D McCollum, Leonard M Quick: Process for upgrading a hydrocarbon fraction. Standard Oil Company, James R Henes, Arthur G Gilkes, William T McClain, June 1, 1976: US03960706 (72 worldwide citation)

A process for upgrading a hydrocarbon fraction and for generating hydrogen in situ by contacting the hydrocarbon fraction with a dense-water-containing fluid at a temperature in the range of from about 600.degree. to about 900.degree.F. in the absence of externally supplied hydrogen and of pretreatm ...


5
Dale A Figgins, J Jay Grove: Disposal of petroleum sludge. Atlantic Richfield Company, James C Fails, F Lindsey Scott, May 19, 1987: US04666585 (63 worldwide citation)

A process for producing delayed petroleum coke wherein petroleum sludge is added to liquid hydrocarbon coker feedstock.


6
Joseph A Kocal: Process for the desulfurization of a hydrocarbonaceoous oil. UOP, John G Tolomei, John F Spears Jr, John G Cutts Jr, August 21, 2001: US06277271 (62 worldwide citation)

A process for the desulfurization of hydrocarbonaceous oil wherein the hydrocarbonaceous oil and a recycle stream containing sulfur-oxidated compounds is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone to reduce the sulfur level to a relatively low level and th ...


7
Guido Sartori, David William Savage, William Neergaard Olmstead, Winston Karl Robbins, David Craig Dalrymple, Bruce Henry Ballinger: Process for treatment of petroleum acids with ammonia. Exxon Research and Engineering Company, Linda M Scuorzo, July 10, 2001: US06258258 (55 worldwide citation)

The present invention is a process for decreasing the acidity of a starting acidic crude oil by contacting an acidic crude with an effective excess of ammonia dissolved in said crude to form an ammonia-continuous oil discontinuous phase at a temperature and conditions sufficient to form the correspo ...


8
Chakka Sudhakar, Mark T Caspary, Stephen J DeCanio: Process for upgrading a hydrocarbon oil. Texaco, Henry H Dilworth & Barrese Gibson, July 27, 1999: US05928501 (55 worldwide citation)

A process for treating a hydrocarbon oil feed to reduce total acid number (TAN) and increase API gravity employs a catalyst which includes one or more metals of non-noble Group VIII of the periodic table (e.g., iron, cobalt and nickel), and at least one metal selected from Group VIB (e.g., chromium, ...


9
Knut Grande, Carsten Sorlie: Process for removing essentially naphthenic acids from a hydrocarbon oil. Den norske stats oljeseskap, Kirkpatrick & Lockhart, May 16, 2000: US06063266 (54 worldwide citation)

A process for removing essentially naphthenic acids from a crude oil which has not previously been fractionated by distillation, or from which only a naphtha fraction has been distilled. The crude oil is hydrogenated at 1-50 bars and 100-300.degree. C. over a catalyst of the kind used for hydrogenat ...


10
Walter Gore: Method of desulfurization of hydrocarbons. Michael Tavella, George Renzoni, December 12, 2000: US06160193 (51 worldwide citation)

A method for the removal of sulfur and nitrogen containing compounds from petroleum distillates. Sulfur- and nitrogen-containing compounds are oxidized using a selective oxidant to create compounds that can be preferentially extracted from a petroleum distillate due to their increased relative polar ...