International Coal Refining Company

Kenneth L Baumert

Burtron H Davis

Alberto A Sagues

Frank K Schweighardt

Tower material corrosion in an atmospheric or sub-atmospheric distillation tower in a coal liquefaction process is reduced or eliminated by subjecting chloride-containing tray contents to an appropriate ion-exchange resin to remove chloride from such tray contents materials.

Corrosion inhibition for distillation apparatus

Fractionation apparatus material corrosion in a coal liquefaction system is reduced by addition of compounds having a pK.sub.b &lt;6 to tower feed streams or to the tower itself.

Corrosion inhibition when distilling coal liquids by adding cresols or

In an atmospheric distillation tower of a coal liquefaction process, tower materials corrosion is reduced or eliminated by introduction of boiling point differentiated streams to boiling point differentiated tower regions.

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Emmaus, PA, United States of America

Kenneth L Baumert