Samenvatting
Shell Plc. is a global petrochemical company, committed to contributing to energy transition and the path to Net Zero Emissions by 2050 or even sooner. This path, however, would require decarbonisation efforts across a variety of energy systems. In the case of the Liquid Natural Gas (LNG) sector, these efforts would involve not only decarbonization throughout the entire existing LNG supply chain but would also require creative solutions to create net-zero products by harnessing renewable energy.
Liquified Sustainable Gas (LSG) or Synthetic methane for instance, can be produced by reacting hydrogen generated from renewable sources with CO2. This provides an alternative to the conventional existing large scale processes that often utilise H2 sourced from non-renewable sources. LSG is envisaged to be a substitute for conventional fossil based LNG, without requiring major modifications to the existing LNG supply chain and infrastructure, thereby making it a compelling proposition.
While commercial scale processes exist for CO methanation in the 0.5 -1 mtpa range, CO2 methanation for LSG production is currently operated in the pilot plant scale. This work aims at developing a LSG process by methanation via Sabatier catalytic hydrogenation to produce LSG with two production capacities, namely 100 kiloton per annum (ktpa) and 1 megaton per annum (mtpa). The development of the process line ups is performed in UniSim, along with heat integration and reactor sizing. This work will also investigate the potential advantages of incorporating isothermal operation into the CO2 methanation process which is conventionally performed with adiabatic reactors.
Furthermore, this work will establish the foundation for a comprehensive LSG production process with a model comprising several different process line ups with adiabatic as well as adiabatic and isothermal reactors. It also sheds light on the potential advantages and disadvantages of adiabatic vs isothermal reactor line ups for CO2 methanation.
Liquified Sustainable Gas (LSG) or Synthetic methane for instance, can be produced by reacting hydrogen generated from renewable sources with CO2. This provides an alternative to the conventional existing large scale processes that often utilise H2 sourced from non-renewable sources. LSG is envisaged to be a substitute for conventional fossil based LNG, without requiring major modifications to the existing LNG supply chain and infrastructure, thereby making it a compelling proposition.
While commercial scale processes exist for CO methanation in the 0.5 -1 mtpa range, CO2 methanation for LSG production is currently operated in the pilot plant scale. This work aims at developing a LSG process by methanation via Sabatier catalytic hydrogenation to produce LSG with two production capacities, namely 100 kiloton per annum (ktpa) and 1 megaton per annum (mtpa). The development of the process line ups is performed in UniSim, along with heat integration and reactor sizing. This work will also investigate the potential advantages of incorporating isothermal operation into the CO2 methanation process which is conventionally performed with adiabatic reactors.
Furthermore, this work will establish the foundation for a comprehensive LSG production process with a model comprising several different process line ups with adiabatic as well as adiabatic and isothermal reactors. It also sheds light on the potential advantages and disadvantages of adiabatic vs isothermal reactor line ups for CO2 methanation.
| Originele taal-2 | Engels |
|---|---|
| Begeleider(s)/adviseur |
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| Plaats van publicatie | Eindhoven |
| Uitgever | |
| Status | Gepubliceerd - 24 sep. 2024 |
Bibliografische nota
EngD thesis. - Confidential.Duurzame ontwikkelingsdoelstellingen van de VN
Deze output draagt bij aan de volgende duurzame ontwikkelingsdoelstelling(en)
