Flexible green ammonia synthesis and
Large scale ammonia cracking technology by Uhde®
AEA Conferencethyssenkrupp UhdeKaran Bagga | August 2021
AEA Conference 2021 | thyssenkrupp Uhde | August 2021 | Karan Bagga
Power
Hydrogen
Ammonia cracking
Green Ammonia as Energy carrier – Set up along the whole energy supply chain
Transport
Air separation unit
Wind/ Solar/ Hydro
Electrolyzer
Hydrogen
Nitrogen
Gas Turbine Power Generation
Power Plants Direct Usage
Fuel
Green Steel
Chemicals
N H
HH
H
H
Ammonia production
The complete solution from one source
Ammonia usage for energy transport, utilization as energy carrier or re-conversion to hydrogen
Ammonia storage & loading
Ammonia storage & unloading
AEA Conference 2021 | thyssenkrupp Uhde | August 2021 | Karan Bagga
Fired catalytic NH3
Cracker
NH3(l)
100% NH3
Cooling
Flue gas
H2 productNH3
PreheatingNH3
EvaporationH2 Purification
Offgas (H2, N2)External source Fuel
Ammonia cracking based on Uhde® proprietary equipment, high hydrogen yield and adaptable to user requirements
catalyst surface
Purities of 99.96% or higher are possible
Overall hydrogen recovery of ~78%,after taking into account all fuel
N H
HH H
H
Suitable for large scale applications
With 1 kg NH3 0.13 kg H2 as final product
AEA Conference 2021 | thyssenkrupp Uhde | August 2021 | Karan Bagga
An techno-economically robust solution is a matter of minimising the entropy in the system
System: Right scale & energy mix, avoid over-compensation Technology: Flexible, robust and efficient
AEA Conference 2021 | thyssenkrupp Uhde | August 2021 | Karan Bagga
1. Deep turndown - key to minimising hydrogen storage
Limited by machinery performance and reaction parameters
Deep turndown and dynamic response enables lower CAPEX, however ultimately it is a matter of Total Cost of Ownership (TCO)
Synthesis Loop Turndown Performance Hydrogen Storage Requirements
> 50% reduction in peak storage requirement
AEA Conference 2021 | thyssenkrupp Uhde | August 2021 | Karan Bagga
FIC10
PIC2
FI12
TIC6
FIC3
PIC2
H2
2. Dynamic performance - Uhde® high flexibility ammonia synthesis, based on advanced digital solutions, for large scale direct coupling with renewables
Dynamic Operation of ammonia plantFluctuation of renewable energy
Compression and Storage Ammonia SynthesisElectrolysis
Master Control
- Adjusts ammonia production to forcasted H2 flow
- Ramps up- and down NH3 plant- Minimal hydrogen storage need- Without pressure change!
AEA Conference 2021 | thyssenkrupp Uhde | August 2021 | Karan Bagga
engineering.tomorrow.together.
Karan BaggaChief Engineerthyssenkrupp Green Hydrogen and Chemicals Technology