Hydrogen Tech World December 2024 | Page 49

[ green ammonia ]
MONO PRESSURE TECHNOLOGY FOR THE NITRIC ACID PRODUCTION PROCESS
TAIL GAS
STEAM
STEAM EXPORT
PROCESS COND .
A
St .
COND
TO ATM .
AIR B . F . W .
NH3 NOX
AIR
ACID
LIQUID NH3
NITRIC ACID
A
Compressor train
D
Waste heat boiler
G
N 2
O / NOx abatement reactor
B
Burner
E
Absorption column
C
Tail gas heater
F
Bleaching column
Fig . 3 . Stamicarbon ’ s mono-pressure nitric acid process
DUAL PRESSURE TECHNOLOGY FOR THE NITRIC ACID PRODUCTION PROCESS
TAIL GAS
STEAM
STEAM EXPORT
PROCESS COND .
TO ATM .
A
COND
AIR B . F . W .
NH3
NOX
AIR
LIQUID NH3
ACID
NITRIC ACID
A
Compressor train
D
Waste heat boiler
G
N 2
O / NOx abatement reactor
B
Burner
E
Absorption column
C
Tail gas heater
F
Bleaching column
Fig . 4 . Stamicarbon ’ s dual-pressure nitric acid process
Hydrogen Tech World | Issue 19 | December 2024 49