Indirectly heating or cooling material within regeneration zone or prior to entry into regeneration zone

Full Title

Regeneration or reactivation of catalysts, in general > Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst > Treating with free oxygen-containing gas > in gaseous suspension, e.g. fluidised bed > Indirectly heating or cooling material within regeneration zone or prior to entry into regeneration zone