Mineral oils: processes and products – Refining – Sulfur removal
Patent
1995-08-14
1998-03-24
Myers, Helane
Mineral oils: processes and products
Refining
Sulfur removal
208214, 208251H, 208254H, 208305, 208306, 208310R, 585822, 585826, C10G 100
Patent
active
057308608
ABSTRACT:
An apparatus and method for treating a liquid hydrocarbon stream useful as a precursor for transportation fuel and which contains an unacceptably high level of heteroatom compounds is provided for the removal of a significant portion of the heteroatom compounds from the hydrocarbon stream. The method and apparatus employ an adsorbent which is brought into countercurrent contact with a hydrocarbon stream in an adsorption zone to form a product hydrocarbon stream and a spent adsorbent stream. The adsorbent is recirculated to a desorption zone and is thereafter brought into cross-current contact with a reactivating medium, such as hydrocarbon gas, at elevated temperatures to form a reactivated adsorbent stream and a hydrogen/heteroatom stream. The regenerated adsorbent is recirculated back to the adsorption zone to form the adsorbent stream.
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Myers Helane
The Pritchard Corporation
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