Sasol Technology Proprietary Limited

Badger Licensing LLC

Marshall Stephen Lee

André Peter Steynberg

Hermanus Gerhardus Nel

Evert Phillippus Kleynhans

Jako Louw

Chung-Ming Chi

David P Palmer

Steven D Evitt

Andre Peter Steynberg

A method of operating a slurry phase apparatus includes feeding one or more gaseous reactants into a slurry body of solid particulate material suspended in a suspension liquid contained inside a vessel. The one or more gaseous reactants are fed into the slurry body through a gas distributor having downward facing gas outlets and are fed towards a fluid impermeable partition spanning across the vessel below the gas distributor. The partition divides the vessel into a slurry volume above the partition and a bottom volume below the partition. A differential pressure is maintained over the partition between predefined limits by manipulating or allowing changes in the pressure in the bottom volume by employing a pressure transfer passage establishing flow or pressure communication between the bottom volume and a head space above the slurry body.

Slurry phase apparatus

An improved process for recovering phenol from a bisphenol-A residue stream by reconfiguring the distillation column and the cracking reactor in a way that separates the reboil/distillation heat load and the cracking heat load, so that separate heat sources are used.

Process for recovering phenol from a BPA waste stream

Growing community of inventors

Concord, MA, United States of America

Marshall Stephen Lee