Direct Contact LLC (DCLLC) is experienced in energy recovery using a broad range of materials.

Valmont Industries, Carson, CA - Galvanizing

A small project we completed for Valmont Industries, Inc. in their Carson, California operation circulates aqueous caustic soda and flux through an indirect heat exchanger to keep both systems hot during weekends (when the plant is shut down and not in production.) The heat recovery system draws flue gas from the galvanizing furnaces (which are maintained at low-fire over the weekend) to recover 1.3 million BTU/HR to maintain the temperature of the flux tank at 160°F.

Corrugated Cardboard, NJ – Glycol

A project we completed in New Jersey transfers energy from boiler flue gas to ethylene glycol for the purpose of heating their buildings. This project saves the company just under 1 million BTU/HR and, in essence, heats their buildings for free.

DCLLC is experienced in energy recovery using a broad range of materials.

James G. Hardie Corporation, Seattle, WA - Gypsum

A project we completed for James Hardie involved using hot flue gas from their Claudius-Peters (raw gypsum rock grinder/dehumidifier) mill mixing it with hot vapor from the rock. This system heats 350 gallons of water per minute from 105°F to 170°F, using the hot water to pre-heat make-up air in their dryers and calciner. In addition to recovering over 9 million BTU/HR of energy, this system recovers almost 9 million gallons of water per year!