81
Joseph T Hamrick, Leslie C Rose: Hydrogen generating system. Arthur F Zobal, May 24, 1977: US04024912 (45 worldwide citation)

A partial oxidation process and system for burning crude oil with just enough oxygen in a gas generator to convert all of the carbon to carbon monoxide to form carbon monoxide and free hydrogen. Water or steam is added and the gas water reaction carried out over an iron base catalyst to produce carb ...


82
No title available. May 26, 1971: GB1233795-A (45 worldwide citation)

1,233,795. Thermal cracking. BADISCHE ANILIN- & SODA-FABRIK A.G. 4 Oct., 1968 [7 Oct., 1967], No. 47183/68. Heading C5E. Olefins are produced by thermal cracking of crude oil or other oil containing non-vaporizable residues in admixture with steam in a cracking furnace having externally heated coile ...


83
Safinya Kambiz A, Mcbride Roger W: System and method for communicating signals in a cased borehole having tubing.. Schlumberger, Schlumberger Prospection, December 14, 1988: EP0295178-A2 (44 worldwide citation)

A system and method are disclosed for wireless two-way communication in a cased borehole having tubing extending therethrough. A downhole communications subsystem is mounted on the tubing. The downhole subsystem includes a downhole antenna for coupling electromagnetic energy in a TEM mode to and/or ...


84
Bernard M Gillespie, Michael S Sarli, Kenneth W Smith: Manufacture of lube base stock oil. Mobil Oil Corporation, Alexander J McKillop, Michael G Gilman, Laurence P Hobbes, March 20, 1984: US04437975 (44 worldwide citation)

Lube base stock oil of low pour point and excellent stability is produced from a waxy crude oil fraction by solvent refining, catalytic dewaxing over a zeolite catalyst in the nature of zeolite ZSM-5 and hydrotreating under specified conditions.


85
Neal J Miller: Three stage centrifuge and method for separating water and solids from petroleum products. Duane Burton, October 20, 1992: US05156751 (43 worldwide citation)

A three stage centrifuge especially adapted to the separation of oil, water, and solid particles in an emulsion. As an example, the centrifuge may be used to separate sediment and water from a petroleum product such as crude oil. The three stage centrifuge includes a rotatable bowl that spins the em ...


86
Process for producing synthetic natural gas. Air Prod & Chem, October 20, 1976: GB1453081-A (43 worldwide citation)

1453081 Synthetic pipeline gas AIR PRODUCTS & CHEMICALS Inc 26 Sept 1973 [12 Oct 1972] 45129/73 Heading C5E Pipeline gas is produced by partially vaporizing a crude oil feed in the presence of hydrogen at 600-1000 F.; reacting the stream of hydrogen and vaporized oil to produce an effluent consistin ...


87
Kurt Gruber, Willi Keim, Klaus Hentschel: Process for transportation and distillation of petroleum with methanol. Mannesmannrohren Werke, Brisebois & Kruger, January 6, 1981: US04243493 (42 worldwide citation)

An improved petroleum distillation process in which methanol is added to the petroleum to be distilled and methanol/hydrocarbon azeotrope is recovered boiling at about 63.degree. C. which can be used as a fuel. The methanol can be derived from natural gas or another fossil fuel source. A methanol cr ...


88
Alan T Y Cheng, Jose R Calvo, Ramon R Barrado: Method of recovering waste heat from edible oil deodorizer and improving product stability. Praxair Technology, Chung K Pak, March 28, 1995: US05401866 (42 worldwide citation)

The invention relates to a process for recovering heat from deodorized edible oils and stabilizing the same comprising: introducing or injecting non-condensible inert gas into hot deodorized edible oil as the hot deodorized edible oil is cooled by indirectly heat exchanging with crude oil to be deod ...


89
Kiyoshige Hayashi, Mikio Nakaniwa, Nobuyuki Kobayashi, Minoru Yamamoto, Yoshihiko Hase: Process for producing high-crystalline petroleum coke. Maruzen Petrochemical, Larson Taylor and Hinds, September 20, 1977: US04049538 (42 worldwide citation)

A high-crystalline petroleum coke is produced from low-sulfur petroleum feedstock such as virgin crude oil, distillation residuum and cracked residium by subjecting the feedstock to preheat treatment under specific conditions to effect cracking and soaking thereof, subjecting the preheat-treated fee ...


90
David J Martucci: Methods of using strong acids modified with acid solutions. An Son Petrochemical, Lyon & Lyon, June 23, 1987: US04675120 (41 worldwide citation)

Acidic compositions comprising mixtures of hydrochloric, phosphoric, oxalic and citric acids, optionally additionally containing oleic, hydrofluoric or sulfuric acid and methods of preparing the acidic mixtures. Uses for certain mixtures of the acids include treating crude oil, in oil recovery proce ...