Demulsifier

Demulsifier

Demulsifiers, or emulsion breakers, are a class of specialty chemicals used to separate emulsions (e.g. water in oil). They are commonly used in the processing of crude oil, which is typically produced along with significant quantities of saline water. This water (and salt) must be removed from the crude oil prior to refining. If the majority of the water and salt are not removed, significant corrosion problems can occur in the refining process.

Demulsifiers are typically based on the following chemistry:

The above are usually ethoxylated (and/or propoxylated) to provide the desired degree of water/oil solubility. The addition of Ethylene oxide increases water solubility, Propylene oxide decreases it.

Commercially available demulsifier formulations are typically a mixture of two to four different chemistries, in carrier solvent(s) such as xylene, Heavy Aromatic Naptha (HAN), Isopropanol, methanol, 2-ethylhexanol or Diesel.

Suppliers of demulsifiers





Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • demulsifier — noun Any substance used to break an emulsion into its constituent liquids. See Also: demulsification, demulsify …   Wiktionary

  • demulsifier — demulˈsifīer noun • • • Main Entry: ↑demulsify …   Useful english dictionary

  • Baker Hughes — Infobox Company company name = Baker Hughes Incorporated company company type = Public (nyse|BHI) company slogan = Core Values of Integrity, Teamwork, Performance Learning foundation = 1987 (merger) location = flagicon|US Houston, Texas, USA key… …   Wikipedia

  • Calixarene — A calixarene is a macrocycle or cyclic oligomer based on a hydroxyalkylation product of a phenol and an aldehyde [1] . The word calixarene is derived from calix or chalice because this type of molecule resembles a vase and from the word arene… …   Wikipedia

  • Gasoline additive — Gasoline additives increase gasoline s octane rating or act as corrosion inhibitors or lubricators, thus allowing the use of higher compression ratios for greater efficiency and power, however some carry heavy environmental risks. Types of… …   Wikipedia

  • Glycidol — Glycidol[1] IUPAC name Oxiranylmethanol …   Wikipedia

  • Erdölraffinerie — MiRO, Werkteil 1 in Karlsruhe Eine Erdölraffinerie ist ein Industriebetrieb, der aus dem Rohstoff Erdöl durch Reinigung, Destillation und Konversion höherwertige Produkte wie Ottokraftstoff, Dieselkraftstoff, Heizöl oder Kerosin herstellt.… …   Deutsch Wikipedia

  • Деэмульгаторы —         в нефтедобыче (a. emulsion breaker, demulsifying agent, demulsifier; н. Entemulgierungsmittel; ф. Desemulsifiants; и. agente desemulsionante) поверхностно активные вещества, способствующие разрушению нефт. эмульсий. При введении в… …   Геологическая энциклопедия

  • demulsify — demulsification, n. demulsifier, n. /dee mul seuh fuy /, v.t., demulsified, demulsifying. Physical Chem. to break down (an emulsion) into separate substances incapable of re forming the emulsion that was broken down. [DE + (E)MULSIFY] * * * …   Universalium

  • demulsify — verb a) To separate into its components. b) To separate (an emulsion) into its components. See Also: demulsification, demulsifier …   Wiktionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”