1
Rajiv Banavali
Ravindranath Mukkamala, Rajiv Manohar Banavali: Compounds containing amide and carboxyl groups as asphaltene dispersants in crude oil. Rohm and Haas Company, Kenneth Crimaldi, October 17, 2006: US07122112 (3 worldwide citation)

A composition containing: (a) 0.001% to 20% of at least one compound represented by formula (II), wherein R5 is C1–C70 difunctional alkyl or C6–C14 difunctional aryl, and R3and R4 independently are hydrogen, alkyl, heterocyclic, aryl or aralkyl groups; and (b) crude oil. In addition to dispersing as ...


2
Diery Helmut Dr, Mees Bernhard Dr: Cross-linked compounds from the reaction of xylylene dichloride with triethanol amine condensates, and their use.. Hoechst, August 31, 1983: EP0087147-A2 (109 worldwide citation)

Quartäre Vernetzungsprodukte erhalten durch Umsetzung von Triäthanolaminkondensaten der Formel wobei n eine Zahl von 1 bis 3 bedeutet, mit Xylylendichloriden und deren Verwendung als Demulgatoren für Öl-Wasser-Emulsionen, als Schmierstoffe und als Papierhilfsmittel.


3
Robert Frederick Heinemann, David Da Teh Huang, Jinping Long, Roland Bernard Saeger: Process for making gas hydrates. Mobil Oil Corporation, Robert B Furr Jr, Malcolm D Keen, February 22, 2000: US06028234 (79 worldwide citation)

The present invention provides a process for continuously producing clathrate hydrate. This process includes comprising the steps of:


4
McCoy Lowell R, Prem Lawrence L: Method and apparatus for removing contaminants from liquids. North American Rockwell Corporation, Humphries L Lee, Kolin H, October 1, 1974: US3839176 (58 worldwide citation)

An electrical apparatus and method utilizes an alternating or periodically interrupted unidirectional electric field applied between opposing electrodes to a stream flowing therebetween comprised primarily of a liquid having a low dielectric constant and containing finely emulsified contaminants hav ...


5
Georgi Angelov, Paul W M Shibley: De-asphalting heavy crude oil and heavy crude oil/water emulsions. Bitumen Development Corporation, Robert F Delbridge, Arne I Fors, January 6, 1987: US04634520 (35 worldwide citation)

A process for the simultaneous de-emulsification and de-asphalting of heavy oil/water emulsions containing asphaltics enables de-asphalted oil, asphaltics and emulsion water to be separately recovered. A heavy oil/water emulsion is mixed with a solvent to cause the emulsion to be broken with consequ ...


6
McCabe John S: Underwater tanker ballast water/oil separation. Chicago Bridge & Iron Company, October 2, 1973: US3762548 (35 worldwide citation)

Method and apparatus for separating oil from tanker ballast water. Ballast is pumped to underwater disengagement zone operating on water displacement principle. Oil separated from ballast mixture rises to a collection zone from which it is recovered; water escapes from open bottom of disengagement z ...


7
Ernest O Ohsol, John W Pinkerton, Thomas E Gillespie: Process for recovering high quality oil from refinery waste emulsions. Jenkens & Gilchrist P C, March 16, 1999: US05882506 (33 worldwide citation)

An invention is disclosed whereby refinery waste emulsion streams such as API slop oils, desalter rag layer emulsions, mud pit sludges and the like having high viscosities and specific gravity approaching that of water can be treated for the recovery of processable oil values which had previously be ...


8
Lees Ronald D, Smith Ronald W: Oil-water separations. Hercules Incorporated, September 12, 1972: US3691086 (31 worldwide citation)

Disclosed is a process of facilitating the separation of oil from oil-in-water liquid emulsion systems. The system is contacted with a separation aid including either (1) certain polymers, (2) polymers in conjunction with certain salts, or (3) polymers in conjunction with salts and silica sol. The p ...


9
Liebold Gert, Oppenlaender Knut, Buettner Egon, Fikentscher Rolf, Mohr Rudolf: Demulsifying crude oil emulsions. Badische Anilin & Soda Fabrik Aktiengesellschaft, Johnston Keil Thompson & Shurtleff, September 23, 1975: US3907701 (30 worldwide citation)

Rapid dehydration of crude oils containing salt water by addition of minor amounts of polyalkylene polyamines having at least fifty recurring ethylene imine or propylene imine units, the said polyalkylene polyamine being completely alkoxylated at the nitrogen atom with from 10 to 300 moles of ethyle ...


10
Johnston Walker F, Will Robert G: Apparatus and process for purifying oil-contaminated water. Standard Oil Company, November 2, 1971: US3617551 (29 worldwide citation)

Disclosed is a 'cartridge-type' apparatus useful for purifying oil-contaminated water. This apparatus includes a flow-through chamber containing polyurethane foam and a pistonlike member which responds to hydraulic pressure to squeeze the foam. As oil-contaminated water flows through the chamber, oi ...