Topsoe’s Road Map to All Electric Ammonia Plants
[Pages:12]-
Topsoe's Road Map to All Electric Ammonia Plants
AIChE Fall Meeting 2018
31 October 2018, John B?gild Hansen (Haldor Topsoe)
Tops?e Ammonia Catalyst Charges and Ammonia Plants
248 current catalyst references worldwide
Number of plants:
60
Accumulated capacity, MTPD: 99,505
3 6
1
7
1
72
23
1
2
Future NH3 production The big picture
Mega conventional
Completely
New technology
New Capacity
2010
Conventional
Modified conventional
? Minus CO2 ? Electrification
? Conventional/
Small
modified
decentralized ? New
Year
Future
3
Long-term ambition
World scale ammonia production from air, water and renewable electricity
Air H2O
Electrolysis
N2/H2
Haber Bosch
loop
NH3
H2O H2O
4
Confidential
The hybrid plant solution
Ammonia
Fully electrified plant
Wind Solar
5
Conventional plant
Hybrid plant
? 22% lower natural gas consumption! ? 50% increase on overall water electrolysis
efficiency!
Natural gas
Revamped hybrid
ammonia production
Air
H2O
Electrolysis
SG
NH3
Haber-Bosch loop
O2
CH4
Natural gas, relative: 82%
Urea reactor
Fertilizer
Electricity: 1.2 MWh/MT
Syngas
separation
CO2
6
Tomorrow: Hybrid plants for greener ammonia
Benefits: ? Waste streams are now valuable streams. ? Decrease specific natural gas consumption by utilising electrical power.
Compared to present configuration: ? 22% lower natural gas consumption! ? 75% lower CO2 emissions in flue gas! ? Similar investment. ? Allows for excess energy storage.
7
Note: Gas could be Green in the future
H2O to H2 via electrolysis process Electrochemical conversion using solid oxide electrolysis cell (SOEC) technology
Electrochemical conversion of H2O to H2 at the fuel electrode
+2
2+
Production of O2-enriched gas on oxy-side
8
+2 Overall:
+
+
2+
................
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