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US 6,428,686 B1Granted
Two phase hydroprocessing
AssigneeProcess Dynamics, Inc.
InventorsMichael D. Ackerson, Michael S. Byars
Life of this patent
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AssigneeProcess Dynamics, Inc.
InventorsMichael D. Ackerson, Michael S. Byars
Estimating the term…
A process where the need to circulate hydrogen through the catalyst is eliminated. This is accomplished by mixing and/or flashing the hydrogen and the oil to be treated in the presence of a solvent or diluent in which the hydrogen solubility is “high” relative to the oil feed. The type and amount of diluent added, as well as the reactor conditions, can be set so that all of the hydrogen required in the hydroprocessing reactions is available in solution. The oil/diluent/hydrogen solution can then be fed to a plug flow reactor packed with catalyst where the oil and hydrogen react. No additional hydrogen is required, therefore, hydrogen recirculation is avoided and trickle bed operation of the reactors is avoided. Therefore, the large trickle bed reactors can be replaced by much smaller tubular reactor.
A hydroprocessing method comprising:
A hydroprocessing method for treating an oil feed with hydrogen in a reactor, comprising:
A hydroprocessing method comprising blending a feed with a diluent, saturating the diluent/feed mixture with hydrogen ahead of a reactor to form a liquid feed/diluent/hydrogen mixture, separating any excess gas from the liquid mixture ahead of the reactor, and then contacting the liquid feed/diluent/hydrogen mixture with a catalyst in the reactor to remove at least one of sulphur, nitrogen, oxygen, metals, and combinations thereof.
Dependencies are inferred from the claim text.