摘要:
A method is described for the microwave emulsion treatment of water-in-oil (W/O) emulsions, said method comprising the steps of a) in the laboratory, determining, for an W/O emulsion (604), (705), (713), (805), (812) the optimum conditions of the variables: water content, salt content, pH value of the aqueous phase, initial temperature, microwave application power, final temperature and drop size distribution to be adjusted in the industrial plant, as a function of the features of the tested crude oil such as viscosity, density, asphaltene content, total acidity, such conditions being those required for obtaining at least 90% separation efficiency of said emulsion in the presence of microwave radiation: b) utilizing such information for the initial adjustment of application conditions of the said method to phase separation units in refineries and production units; c) perform on line tests of the variables of step a) of the process response in the streams effluent from separation units, being said response the water content and salt content tests, so as to feedback the information to the best adjustment of the process conditions for microwave application; and d) additionally, utilizing the on line or laboratory tests of the effect of the method as a tool for the monitoring of the efficiency of the breaking of the W/O emulsion.
摘要:
The invention relates to a process for the purification of crude and apparatus for its implementation. This process comprises a separation into gas and degassed emulsion and separation of the degassed emulsion into water and oil. The invention also relates to a process of separating a hydrocarbon emulsion and apparatus for implementing this. This process comprises washing of the emulsion at an oil/water interface.
摘要:
A method and apparatus for the removal of free, emulsified, or dissolved water from liquids of low volatility, such as oil, is shown. The liquid of low volatility is removed by contacting the fluid stream of concern with one side of a semi-permeable membrane. The membrane divides a separation chamber into a feed side into which the stream of fluid is fed, and a permeate side from which the water is removed. The permeate side of the chamber is maintained at a low partial pressure of water through presence of vacuum, or by use of a sweep gas.
摘要:
It has been discovered that metal-containing components can be transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition which is a blend of polymers. The composition includes at least one diepoxide polymer, at least one polyol; and preferably at least one aromatic sulfonic acid. An aromatic solvent may be optionally included in the composition. The invention permits transfer of metal-containing components into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing iron-containing components therefrom.
摘要:
Lube oil basestocks having an oil/water interfacial tension (γ o/w) of less than 41 mN/m, preferably less than about 35 mN/m which exhibit unacceptable demulsibility can have their demulsibility performance improved by contacting said lube oil basestock with an acidic ion exchange resin, such as Amberlyst AR-15, or with silica. The treated lube oil base stock exhibits an oil/water interfacial tension (γ o/w) of at least about 41 mN/m, preferably at least about 42 mN/m.
摘要:
Verfahren zum Entwässern mineralölhaltiger Schlämme durch zweistufige Entwässerung unter Verwendung feinteiliger Zuschlagstoffe und organischer Flockungsmittel, bei dem man
a) in den mineralölhaltigen Schlämmen feinteilige Zuschlagstoffe wie Asche, Kohle, Sand oder deren Gemische in rieselfähiger Form oder als wäßrige Suspension homogen verteilt, und zwar in einer Menge, bis der Gesamtfeststoffgehalt dieser Mischung 10 bis 30 Gew.-%, insbesondere 12 bis 20 Gew.-%, beträgt, b) dieses Schlammgemisch mit wäßrigen Lösungen organischer Flockungsmittel, bevorzugt anionischer Flokkungsmittel, behandelt, c) durch Schwerkraftfiltration die Hauptmenge des Schlammwassers abtrennt, d) das vorentwässerte Schlammgemisch mit wäßrigen Lösungen von Salzen des Aluminiums oder des dreiwertigen Eisens behandelt und e) durch Druckfiltration weiterhin entwässert, wobei gleichzeitig die Hauptmenge des vorhandenen Mineralöls abgetrennt wird.