Selective adsorption process for resid upgrading (law815)
First Claim
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1. A process to remove a major portion of metal-containing molecules and coke precursor molecules from a hydrocarbon feedstream including an atmospheric residuum, vacuum residuum, or a deasphalted oil from a solvent deasphalter, in the substantial absence of an added aromatic or cyclic non-aromatic solvent, comprising:
- (a) contacting said hydrocarbon feedstream with a hydrocarbon insoluble adsorbent characterized by a surface area greater than 100m2/g for a time and temperature sufficient to adsorb a major portion of said metal containing molecules and coke precursor molecules onto said adsorbent, (b) recovering the oil which does not adsorb and (c) removing the metal containing molecules and coke precursor molecules from said adsorbent.
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Abstract
The present invention is a process to remove a major portion of metals and coke precursors from a hydrocarbon stream. The steps of the process include contacting the feedstream with a hydrocarbon insoluble adsorbent, recovering the oil which does not adsorb and removing the metals and coke precursors from the adsorbent.
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Citations
15 Claims
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1. A process to remove a major portion of metal-containing molecules and coke precursor molecules from a hydrocarbon feedstream including an atmospheric residuum, vacuum residuum, or a deasphalted oil from a solvent deasphalter, in the substantial absence of an added aromatic or cyclic non-aromatic solvent, comprising:
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(a) contacting said hydrocarbon feedstream with a hydrocarbon insoluble adsorbent characterized by a surface area greater than 100m2/g for a time and temperature sufficient to adsorb a major portion of said metal containing molecules and coke precursor molecules onto said adsorbent, (b) recovering the oil which does not adsorb and (c) removing the metal containing molecules and coke precursor molecules from said adsorbent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. The process of claim I wherein said feedstream is a deasphalted oil from a solvent deasphalter and said temperature is between 140 and 160°
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Specification