Bricmont's designed emission control systems

Bricmont developed a proprietary emission control system (ECS), for one of its clients that produce acid gas pollutants evolving from a melter. This system uses melter batch solid material as the reagent to react with pollutants, such as acid gases in the melter flue gas. The batch is then recycled and fed directly into the melter.

Process Description

In this system, the melter exhaust gases are indirectly cooled in a recuperator. The solid batch material and its transport air is injected via a batch mixer into the recuperator exhaust stream. The addition to the batch provides the reagent for acid gas removal, while the transport air cools the gas stream.

After the acid gas removal, additional cooling gas is added to the exhaust stream through a second batch mixer. The cooling in this mixer allows other compounds to condense out of the gas stream.

After the second batch mixer, the exhaust gas enters a batch hopper equipped with an internal cyclone and a bag house on top of the batch hopper. The solids in the exhaust gas are disengaged from the gas stream in the internal cyclone and drop into the hopper. The bag house removes any residue solids from the exhaust gas. The recycled batch then becomes the feed for the subject furnace.