The first application including the HyHeat system is seen in combined heat and power plants, using gas engines as prime mover. Gas engines come in standard sizes, which facilitates market introduction. In parallel with this market the pulp and paper business provides several opportunities for heat recovery technologies. By designing each unit separately, the customer is guaranteed optimised recovery efficiency in every case.
In more detail, the technology is based on hygroscopic absorbents such as inorganic salts etc. By direct contact of moist and warm gases with the hygroscopic medium, the water content is condensed without cooling the gas beneath its dew point. The latent energy is regained from the flue gas and the overall efficiency of the main process is increased.