71
Juha Jakkula, Pekka Aalto, Vesa Niemi, Ulla Kiiski, Jouko Nikkonen, Seppo Mikkonen, Outi Piirainen: Fuel composition for a diesel engine. Fortum Oyj, Birch Stewart Kolasch Birch, October 9, 2007: US07279018 (48 worldwide citation)

The invention is directed to a fuel composition for diesel engines. The fuel composition comprises 0.1-99% by weight of a component or a mixture of components produced from biological raw material originating from plants and/or animals and/or fish. The fuel composition comprises 0-20% of components ...


72
Lyle D Atkins: Process and apparatus for the destructive distillation of waste material. Wallace Atkins Oil Corporation, Bard Springs Jackson & Groves, July 26, 1977: US04038152 (48 worldwide citation)

An apparatus is provided for the destructive distillation of organic waste materials. An insulated sealed distillator compartment is provided having a plurality of conveyor stages for transporting the waste material through the sealed compartment while subjecting the material to a plurality of incre ...


73
Roby Bearden, Saul Charles Blum, William Neergaard Olmstead: Process for reducing total acid number of crude oil. Exxon Research and Engineering Co, E C Bakun, June 22, 1999: US05914030 (47 worldwide citation)

The invention comprises a method for reducing the amount of carboxylic acids in petroleum feeds comprising the steps of (a) adding to said petroleum feed a catalytic agent comprising an oil soluble or oil dispersible compound of a metal selected from the group consisting of Group VB, VIB, VIIB and V ...


74
Roger L Schultz, Michael L Fripp, Brock W Watson: Wellbore power generating system for downhole operation. Halliburton Energy Services, Lawrence R Youst, February 1, 2005: US06848503 (47 worldwide citation)

A power generating system (100) for a downhole operation (10) having production tubing (40) in a wellbore (12) includes a magnetized rotation member (110) coupled to the wellbore (12) within the production tubing (40), the rotation member (110) having a passageway (112) through which objects, such a ...


75
Ernest O Ohsol, John W Pinkerton, Thomas E Gillespie, Thomas H Laity: Process for upgrading heavy crude oil production. UniPure Corporation, Jenkens & Gilchrist PC, September 7, 1999: US05948242 (47 worldwide citation)

A process for upgrading heavy crude oil production is described which involves adding a diluent, or solvent, which is a light hydrocarbon to reduce the viscosity and specific gravity of the crude oil being processed. After dilution, the emulsions in the crude are broken and the separation of the cru ...


76
Kenneth L Trachte, Jacob B Angelo, Keith K Aldous: Catalytic reduction of acidity of crude oils in the absence of hydrogen. Exxon Research and Engineering Company, James H Takemoto, February 16, 1999: US05871636 (47 worldwide citation)

A process for reducing the acidity of acidic crude oils by contacting the crude oil with a hydrotreating catalyst in the absence of hydrogen.


77
Roby Bearden, Saul Charles Blum, William Neergaard Olmstead: Process for reducing total acid number of crude oil. Exxon Research and Engineering Co, E C Bakun, July 27, 1999: US05928502 (47 worldwide citation)

The invention comprises a method for reducing the amount of carboxylic acids in petroleum feeds comprising the steps of (a) adding to said petroleum feed a catalytic agent comprising an oil soluble or oil dispersible compound of a metal selected from the group consisting of Group VB, VIB, VIIB and V ...


78
Myers Gary A: Guard bed system for removing contaminant from synthetic oil. Atlantic Richfield Company, Wofford Felsman Fails & Zobal, April 8, 1975: US3876533 (46 worldwide citation)

A method for removing a contaminant comprising at least one of arsenic and selenium from a synthetic crude oil or fraction thereof characterized by a multi-step process as follows. First, a guard bed is prepared from a plurality of particles of material that is either iron, cobalt, nickel, oxides or ...


79
Rolf Matter, Bernard Paringaux: Process for recovering crude oil or refinery products from sludgy, thickened or sedimented products. Fiprosa Holding, Frishauf Holtz Goodman & Woodman, January 7, 1992: US05078799 (45 worldwide citation)

To render residues such as thickened sludge and sedimented crude oil or refinery products which collect at the bottom of a tank into pumpable flowable condition, crude oil is taken from an upward region of the tank, pumped upwardly to a suction pump (609)-pressure pump (605) unit (610) located, for ...


80
Gifford G McClaflin, Henry A Bourne, Donald L Whitfill: Method for producing heavy, viscous crude oil. Conoco, Stephen A Littlefield, August 12, 1986: US04605069 (45 worldwide citation)

Disclosed is a process whereby heavy, viscous crude oil may be produced from a hydrocarbon-bearing formation utilizing a jet pump without the problems associated with cavitation damage of the jet pump found in the prior art. The jet pump is operated with a power fluid comprising water and surfactant ...