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High severity visbreaking with recycle
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Patent number 4,846,958
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Issue date Jul 11, 1989
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Lummus Crest, Inc.
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Robert J. Feldman
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Solvent refining of residues
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Patent number 4,795,551
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Issue date Jan 3, 1989
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Lummus Crest, Inc.
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Gary L. Hamilton
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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High severity visbreaking
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Patent number 4,773,986
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Issue date Sep 27, 1988
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Lummus Crest, Inc.
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Robert J. Feldman
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Solvent for refining of residues
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Patent number 4,592,831
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Issue date Jun 3, 1986
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Lummus Crest Inc.
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Andrei Rhoe
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...