Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By plural serial diverse separations
Patent
1990-12-05
1992-06-09
McFarlane, Anthony
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By plural serial diverse separations
585818, 585819, 585857, 585863, 585864, 210644, 210650, 210651, 208308, 208327, 208330, 208335, C07C 700, C07C 7144, B01D 6100
Patent
active
051209004
ABSTRACT:
Raffinate yield from solvent extraction is improved when the extract phase recovered from the solvent extraction process is subjected to a membrane separation step wherein a saturates/1-ring aromatics rich retentate is produced and a 2+ ring aromatics rich permeate are produced and the saturates/1-ring aromatic rich retentate phase is recycled to the solvent extraction process.
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Chen Tan-Jen
Sweet James R.
Allocca Joseph J.
Exxon Research and Engineering Company
McFarlane Anthony
Phan Nhat
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