51
George B Arnold: Process for heating a fluid in a geothermal formation. Texaco, Thomas H Whaley, Carl G Ries, Walter D Hunter, December 6, 1977: US04060988 (55 worldwide citation)

An in situ heat exchange process for heating an organic fluid, which can be, for example, a normally liquid hydrocarbon having from 4 to 10 carbon atoms, in a geothermal reservoir formation penetrated by an injection well and a production well comprising injecting the said fluid into the formation v ...


52
Magdalena M Ramirez de Aqudelo, Carmen E Galarraga: Catalytic system for the hydroconversion of heavy oils. Intevep, Bachman & LaPointe, June 26, 1990: US04937218 (54 worldwide citation)

The present invention relates to a process for the hydroconversion of heavy crude oil and an improved regenerable catalyst for use therein. The process broadly comprises (a) introducing into a hydroconversion reaction zone a feedstock of crude oil, hydrogen, from about 10 to about 1000 wppm of an ac ...


53
Eugene T Premuzic, Mow Lin: Process for producing modified microorganisms for oil treatment at high temperatures, pressures and salinity. Associated Universities, Margaret C Bogosian, February 20, 1996: US05492828 (54 worldwide citation)

This invention relates to the preparation of new, modified organisms, through challenge growth processes, that are viable in the extreme temperature, pressure and pH conditions and salt concentrations of an oil reservoir and that are suitable for use in microbial enhanced oil recovery. The modified ...


54
Robert R Dean, Jean L Mauleon, Robert J Newman: Method and means for preparing and dispersing atomed hydrocarbon with fluid catalyst particles in a reactor zone. Carl D Farnsworth, January 24, 1984: US04427537 (54 worldwide citation)

The invention described is concerned with atomizing an oil fraction of crude oil to provide a fog of oil droplets in diluent gaseous material which is sprayed into an upwardly flowing annular dense mass of catalyst particles to form a high temperature suspension therewith and conveyed through a rise ...


55
Manabu Yanou, Michio Kanno, Masaru Uehara, Masanori Itakura: Device and method for processing crude oil. Mitsubishi Rayon, Oblon Spivak McClelland Maier & Neustadt P C, October 29, 2002: US06471869 (52 worldwide citation)

A crude oil processing method is provided wherein a membrane module is immersed in the crude oil contained in a processing tank and the crude oil is pressurized or driven by gravity for gravitational filtration, thereby to pass through the membrane, with the dehydrated oil that has passed being take ...


56
Knut Grande, Carsten Sorlie: Process for removing essentially naphthenic acids from a hydrocarbon oil. Den norske stats oljeseskap, Kirkpatrick & Lockhart, May 16, 2000: US06063266 (52 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 ...


57
Donald H Powers: Olefin production utilizing whole crude oil. Equistar Chemicals, Roderick W MacDonald, June 1, 2004: US06743961 (52 worldwide citation)

A method for utilizing whole crude oil as a feedstock for the pyrolysis furnace of an olefin production plant wherein the feedstock after preheating is subjected to mild cracking conditions until substantially vaporized, the vapors from mild cracking being subjected to severe cracking in the radiant ...


58
Jerald A Howell, Donald C Tabler, Donald M Haskell: Hydrovisbreaking process for hydrocarbon containing feed streams. Phillips Petroleum Company, French and Doescher, June 3, 1986: US04592830 (51 worldwide citation)

A hydrogen donor solvent selected from the group consisting of a full range crude oil and an atmospheric topped crude oil is used in a hydrovisbreaking process. The heavy fraction being processed is heated in the presence of hydrogen and the solvent under suitable hydrovisbreaking conditions. As a r ...


59
Donald F Best, Gary N Long, Regis J Pellet, Jule A Rabo, Edward T Wolynic, Frank P Gortsema, Albert R Springer: Hydrocracking catalyst and hydrocracking process. UOP, Vincent J Vasta Jr, January 30, 1990: US04897178 (49 worldwide citation)

A process for hydrocracking a crude oil feed, a hydrocracking catalyst employed therein, and a process for the preparation of this catalyst are disclosed. The hydrocracking catalyst comprises a zeolitic aluminosilicate which has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of at least 6 and which has ...


60
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 ...



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