and an input of a process for producing ammonia from combustion process exhaust gas such a process being identified as system 45 the output of system 45 is connected to ammonia conductor 27 by side stream output conductor 49 a process for producing ammonia from combustion process exhaust gas is described in detail is u s pat no 3 232 885 entitled 34 method of producing an inert gas 34 and issued to henke on feb 1 1966 referred to hereinafter as 34 henke 39 885 34 the description of henke 39 885 is incorporated herein by reference referring to fig2 of henke 39 855 system 45 of the present application includes the portion of the henke 39 885 system from conductor 41 representing the input of system 45 to the conductor between cooling coil 60 and three way valve 62 such conductor representing the output of system 45 such portion of the system is described most paticularly in henke 39 885 from column 4 line 69 to column 5 line 71 from column 6 line 50 to column 7 line 28 from column 9 line 11 to column 9 line 31 from column 10 line 8 to column 10 line 45 and the claims the outlet of nh 3 gas mixing chamber 25 is connected to the input of catalytic reactor 33 by means of reactor conductor 35 within catalytic reactor 33 is.