Comalco Aluminium Limited

Lynas Services Pty Ltd

Anthony Rudland Kjar

Randall M German

Grant Ashley Wellwood

Ronald G Iacocca

Christopher Geoffrey Goodes

Robert Francis Still

John L Mihelich

Jeffrey Keniry

A process for removing a carbon dioxide, HF or sulfur dioxide contaminant from an exhaust gas stream containing that contaminant comprising providing a gas stream to a reaction zone, the gas stream entering the reaction zone from underneath and being caused to flow through the reaction zone with components of velocity in substantially upwards and circumferential directions; contacting the gas stream in the reaction zone with particulate material to adsorb the contaminant on the particulate material, wherein the flow of gas in the reaction zone causes a dispersed toroidal bed of particulate material to be formed in the reaction zone; the slip velocity of the gas stream relative to the particulate material in the toroidal bed is greater than 1 m/s; and entraining a fine fraction of the particulate material in the gas stream whereby the fine fraction is removed from the toroidal bed by the gas stream exiting the bed; and separately recovering a coarse fraction of the particulate material from the reaction zone.

Gas-solid contacting method

Particulate feedstock for metal injection molding

Growing community of inventors

Blackburn, Australia

Anthony Rudland Kjar