A method and apparatus for agricultural product production with heat and
moisture recovery and control. Some embodiments transfer heat and
moisture from a warm, moist exhaust air stream to incoming agricultural
material, steam condition the material, pelletize the material into warm
pellets, cool the warm pellets with make-up air to produce the warm,
moist exhaust air used to transfer heat to the incoming material and to
produce cooled pellets, wherein the cooled pellets are at a temperature
lower than the warm moist air. In some embodiments, the system includes
counter-flow devices to transfer heat and moisture. In some embodiments,
a controller is used to adjust system devices and overall system flow. In
some embodiments a water sprayer, to moisten agricultural product when
the product is over dry, and an air flow controller, to slow air flow
through the pellet dryer/cooler when ambient temperatures are
dryer/cooler, are provided.