ULTRA HIGH SOLIDS BLACK LIQUOR USING THE ELECTROMAGNETIC INDUCTION HEATING TECHNOLOGY, 2010 TAPPI/PAPTAC International Chemical Recovery Conference

Please Note: This document will be available in PDF format in the "My Electronic Documents" link on the home page once your order has been completed. Please make sure you have the latest version of Acrobat Reader. Click on the Acrobat Reader icon to check for the latest version, it’s FREE. To print a hardcopy of a PDF file correctly you must have a postscript printer. If you are not sure if your printer is a postscript printer please refer to your owner’s manual.

High solids black liquor firing offers the potential of increasing kraft pulp production when there are limitations as to the flue gas volumetric capacity of a recovery boiler and the possibility of providing energy and environmental benefits as well. The technical feasibility of concentrating black liquor using an electromagnetic induction heating screw was evaluated and more than 90% solids was achieved. The approach eliminates the barrier related to pumping limits caused by excessive viscosity, which is unsuitable for conventional concentrators and crystallisers. A preliminary economic analysis revealed that certain options could be economically viable.