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US 10,473,397 B2Granted
Method for the use of heat energy from gasification sources in gypsum board production
AssigneeCertainTeed Gypsum, Inc.
InventorsJohn W. College, Felipe J. Yanes, David Corbin
Life of this patent
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Abstract
The present invention relates to an improved method for using heat energy in a gypsum board plant. More specifically, the method contemplates taking heat from a gasifier, or other alternative heat source, and using it to dry gypsum boards. In order to control humidity levels, this heat is delivered to one or more board dryers via a heat exchanger.
Claims16
A method for using a biomass to heat gypsum boards, the method comprising:
- providing an upstream and a downstream gypsum board dryer, the upstream board drying producing recycled gases having a temperature in excess of an ambient temperature;
- gasifying the biomass to produce a combustible vapor;
- burning the combustible vapor to produce a hot gas that is high in humidity;
- bringing recycled gases from the upstream board dryer into thermodynamic contact with the hot gas to produce a heated recycled gas and a cooled gas;
- routing the heated recycled gases back into the upstream board dryer;
- and
- routing the cooled gas into the downstream board dryer.
4 more elements
Dependencies are inferred from the claim text.