Uhde
Uhde
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Green ammonia – Save costs and CO2 by using renewable energy
The challenges of our time are that the world's population is growing more and more and fossil resources are running out. More people need more food and more energy. In order to protect the climate, we want to reduce the CO2 emissions. At thyssenkrupp we are driven by sustainability – to stop climate change, develop technologies that make sustainability feasible for business, reduce the carbon footprint of industrial value chains, and move renewable energies forward. That is what motivated us to develop our green ammonia technology.
Fertilizers and energy storage with green ammonia
Green ammonia is crucial to tackle the existential challenges of producing enough food to feed a growing global population and generating CO2-free energy. Ammonia (NH3), a compound of nitrogen and hydrogen, is mainly used to manufacture fertilizers. 80% of the annual global production of over 170 million metric tons is used in this way. And that should become even more in the next few years.
But ammonia can also be burnt to make electricity with air and water the only emissions, or used as a storage medium for energy generated from renewable sources.
Green ammonia – Independence from imports and fossil resources
As the diagram below shows, ammonia is conventionally produced using natural gas as a fuel. Unfortunately, this accounts for around 1.4% of global fossil-fuel consumption and CO2 emissions.
But there is an alternative. At thyssenkrupp Uhde we developed a technology that can produce green ammonia from just water, air and electricity generated from renewables using any kind of electrolysis technology to supply the downstream processes with hydrogen.
Zero CO2-emissions
No import taxes and logistics
Local supply, independent from gas price
Experience cannot be copied: Cutting-edge ammonia technology since 1928
thyssenkrupp Uhde is one of the leading technology providers in ammonia field by using the proven uhde® ammonia process. We are a reliable and competent EPC contractor and world market leader for electrolysis and ammonia plants with more than 150 plants built worldwide and over 90 years of experience. We are constantly improving our designs and technologies by process development and R&D activities and working on improved energy efficiencies and higher capacities.
Our first green ammonia plant we built 1962 in Chile with a capacity of 50 metric tons per day ammonia.
Green ammonia production – ecological and economic benefits
High efficiency, yield and reliability
Low maintenance requirements
Technology fully modularized for all capacities resulting in low installation costs
Climate-friendly feedstocks: No CO2 emissions (depending on E-power source)
Independent of natural gas resources
Politically supported
Well referenced electrolysis and synthesis design
Decentralized fertilizer production
AWE starts up within minutes
Fast response to fluctuating power input
All technologies from a single source
EPC competence with a strong holding company
Many know-how and experience
Features of our Green ammonia plant
Premium grade product
High flexibility in ammonia production
Whole plant modularized designed
Proven design of small scale ammonia plants
uhde® proprietary converter design
Referenced
Small-scale green ammonia plants – or revamps
For the production of green ammonia we build on decades of expertise and experience as the world market leader in electrolysis and ammonia plants:
* if the required electricity is generated from renewable sources
We offer customers a choice of two small-scale green ammonia plants or a revamp option to convert an existing ammonia plant to green production through the integration of AWE technology.
Our smallest-scale plant takes electricity from a 20 MW electrolysis unit to produce green ammonia.
Benefits:
Self-sufficient power generation
No high transportation costs for ammonia
Avoidance of possible import or carbon taxes
Similar CAPEX and OPEX to small-scale conventional ammonia plants
Technical challenges of small-scale, low-flow processes overcome through proven equipment design
This small-scale plant takes electricity from a 120 MW electrolysis unit to produce green ammonia
Benefits:
Ideal for localized power distribution scenarios
Lower engineering and construction costs thanks to fully modular design concept based on prefabricated, standardized 5 MW skids
Similar CAPEX and OPEX to small-scale conventional ammonia plants
No high transportation costs for ammonia
Avoidance of possible import or carbon taxes
Technical challenges of small-scale, low-flow processes overcome through proven equipment design
Revamps and de-bottlenecking of ammonia plants – greening of existing fertilizer plants
Our green ammonia process based on AWE technology is an interesting option for greening existing ammonia plants, as the following diagram shows. The water electrolysis can be coupled with the synthesis section of your existing ammonia plant. Nitrogen is generated via air separation.