Cire Technologies- Abb Air Preheater, Regenerative Oxidizer,... Copyright Cire Technologies Inc. 2004-2011 Site development by SRM Design, in association with Broden Inc Cire... secondary heat exchangers where indirect feedback of heat to the process is desired. Direct feedback systems where direct feedback of heated air to the process is desired. Hot and cold..., eliminate visible smoke, destroy VOCs from processes that are operated intermittently. Raw gas burners mounted in the air stream for complete flame contact with the process stream...