GAS RECYCLING SYSTEM FOR A CONTROLLED ATMOSPHERE UNIT OPERATION

摘要

A gas recycling system for a controlled atmosphere furnace includes a controlled atmosphere furnace having a product entry, a product exit, a process gas inlet adjacent said product exit, and a spent gas outlet adjacent said product entry. A spent gas recycler is operationally connected to the spent gas outlet. The recycler produces a recycled process gas stream and a waste gas stream. The recycled process gas stream is returned to the controlled atmosphere furnace. The waste gas stream is returned to the controlled atmosphere furnace at a point downstream from the spent gas outlet.

主权项

1. A gas recycling system for a controlled atmosphere unit operation comprising:
a controlled atmosphere unit operation having a product entry, a product exit, a process gas inlet adjacent said product exit, and a spent gas outlet adjacent said product entry; a spent gas recycler operationally connected to said spent gas outlet, said recycler producing a recycled gas stream and a waste gas stream; wherein said recycled gas stream being returned to said controlled atmosphere unit operation and said waste gas stream being returned to said controlled atmosphere unit operation at a point downstream from said spent gas outlet.