Patent ID: 8747731

Claim:
A device for preparing a process gas for use in a treatment chamber of an industrial heat treating furnace, said device comprising: a) a closable preparation chamber ( 2 . 2 ) for preparing a process gas ( 3 ) comprising a catalyst ( 2 . 2 . 1 ) and a temperature adjustment device ( 2 . 2 . 2 ), said preparation chamber being configured as a module that is separated from a treatment chamber ( 1 . 1 ) of an industrial heat treating furnace ( 1 ); b) a gas inflow line ( 1 . 5 ) connected between said preparation chamber and the treatment chamber for conducting the process gas from said preparation chamber to the treatment chamber; c) a gas outflow line ( 1 . 6 ) connected between the treatment chamber and said preparation chamber for conducting a treatment medium of the process gas from the treatment chamber to said preparation chamber; d) a process gas compressor ( 2 . 3 ) functionally integrated with said preparation chamber and connected in said gas outflow line; e) equipment ( 2 . 4 ) for measuring one or more parameters related to an inflow of treatment media ( 3 . 1 , 3 . 2 ) of the process gas ( 3 ), the equipment being connected functionally to the treatment chamber ( 1 . 1 ) of the industrial heat treating furnace, to said preparation chamber ( 2 . 2 ), and to said process gas compressor ( 2 . 3 ); and f) a switching unit ( 2 . 5 ) connected to said equipment ( 2 . 4 ) for receiving the one or more parameters and controlling and adjusting a property of the process gas to be prepared in said preparation chamber ( 2 . 2 ) for the purpose of feeding the treatment media ( 3 . 1 , 3 . 2 ) into said preparation chamber, feeding the prepared process gas ( 3 ) into the treatment chamber ( 1 . 1 ) of the industrial furnace ( 1 ), adjusting a C level in the treatment chamber, and extracting at least one of the treatment media ( 3 . 1 , 3 . 2 ).