Carbon strand radio frequency heating susceptor
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United States of America Patent
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May 3, 2016
Issued Date -
N/A
app pub date -
Dec 4, 2012
filing date -
Mar 2, 2009
priority date (Note) -
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Abstract
A method and apparatus are directed to heating materials by application of radio frequency (“RF”) energy. The materials to be heated may include petroleum ore, such as bitumen, oil sands, oil shale, tar sands, or heavy oil. Petroleum ore is mixed with a substance that includes mini-dipole susceptors such as carbon strands. A source is provided which applies RF energy to the mixture of a power and frequency sufficient to heat the mini-dipole susceptors. The RF energy is applied for a sufficient time to allow the mini-dipole susceptors to heat the mixture to an average temperature greater than about 212° F. (100° C.). Optionally, the mini-dipole susceptors can be removed after the desired average temperature has been achieved. The susceptors may provide advantages for the RF heating of hydrocarbons, such as higher temperatures (sufficient for distillation or pyrolysis), anhydrous processing, and greater speed or efficiency.
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