Radio frequency heating of petroleum ore by particle susceptors

C - Chemistry – Metallurgy – 10 – G

Patent

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Details

C10G 1/00 (2006.01) B29C 35/08 (2006.01) B29C 35/12 (2006.01) C10G 1/02 (2006.01) H05B 6/00 (2006.01)

Patent

CA 2753600

A method for heating materials by application of radio frequency ("RF") energy is disclosed. For example, the disclosure concerns a method for RF heating of petroleum ore, such as bitumen, oil sands, oil shale, tar sands, or heavy oil. Petroleum ore is mixed with a substance comprising susceptor particles that absorb RF energy. A source is provided which applies RF energy to the mixture of a power and frequency sufficient to heat the susceptor particles. The RF energy is applied for a sufficient time to allow the susceptor particles to heat the mixture to an average temperature greater than about 212 F (100 C). Optionally, the susceptor particles can be removed from the mixture after the desired average temperature has been achieved. The susceptor particles may provide for anhydrous processing, and temperatures sufficient for cracking, distillation, or pyrolysis.

Cette invention concerne un procédé de chauffage de matériaux par application d'énergie radiofréquence (RF). L'invention concerne par exemple un procédé de chauffage par RF de gisement de pétrole, comme le bitume, les sables bitumineux, le schiste bitumineux, les sables pétrolifères ou le pétrole lourd. Le gisement de pétrole est mélangé avec une substance comprenant des particules de suscepteur absorbant l'énergie RF. Une source est prévue qui applique l'énergie RF sur le mélange d'une puissance et d'une fréquence suffisantes pour chauffer les particules de suscepteur. L'énergie RF est appliquée pendant une durée suffisante pour permettre aux particules de suscepteur de chauffer le mélange à une température moyenne supérieure à environ 212 °F (100 °C). Les particules de suscepteur peuvent éventuellement être éliminées du mélange une fois que la température moyenne souhaitée a été atteinte. Les particules de suscepteur peuvent entretenir un traitement anhydre, et des températures suffisantes pour le craquage, la distillation ou la pyrolyse.

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