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Researchers from NTU 

  • Assoc. Prof. Alessandro Romagnoli, PI

  • Asst. Prof. Paul Liu, SCBE

  • Dr. Sivanand Somasundranm, EPGC

  • Sundar Raj Thangavelu, EPGC

  • Dr. Bakytzhan Akhmetov, Research Fellow

  • Dr. Antoni Gil Pujol, Senior Research Fellow 

  • Mr. Yang Lizhong, Research Associate

  • Dr. Alessio Tafone, Research Fellow

  • Dr. Khor Jun Onn, Research Fellow

Surbana Jurong

  • Mr. Tan Wooi Leong, PI (Senior Director Oil & Gas)

  • Mr. Govindaraj Naralasetti, Co-PI (Deputy Director Oil & Gas)

  • Mr. Derek Wong Sun Soon, Co-PI (Deputy Director Oil & Gas)

  • Mr. Anthony Chang Boon Poh, Co-PI (Deputy Director Oil & Gas)



Contact: Assoc. Prof. Alessandro Romagnoli

                 Mr. Wooi Leong Tan






















Description of the technology

Currently, LNG is stored in liquid form at -162 degrees Celsius and must be converted back to gas at ambient temperature in a process known as regasification. The resulting natural gas is then used for many applications, ranging from electricity generation, industrial processes to commercial and domestic applications such as cooking gas.


During the regasification process, the liquid is heated up from -162 degrees to ambient temperature, producing a significant amount of cold energy which is currently wasted in standard regasification facilities.


The Cryo-Polygen system allows for the recovery and usage of this cold energy. It does this by converting cold energy to electricity directly and storing the cold energy for usage in chillers.  The energy is also used in cryogenic carbon capture, which separates carbon dioxide from the flue gas into either solid or liquid forms for storage.  The stored cold energy from the cooled carbon dioxide can potentially be used to address the cooling needs of cold storage warehouses, industrial parks and buildings.


For example, seven per cent of Singapore’s total electricity consumption is used by data centres, of which 37 per cent of the energy is used for cooling. If adequately sized, the Cryo-Polygen system could capture cold energy to potentially supply the entire energy needed to cool data centres.


Cryo-Polygen combines the concurrent generation of electricity, gas, cold energy, steam and hot water by leveraging on LNG to produce energy. The recovery, storage and distribution of the cold energy allow for its use in various applications such as cold storage warehouses, data centers, industrial parks and buildings.

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