A comparative study of Phillips optimised cascade and APCI propane pre-cooled mixed refrigerant LNG liquefaction processes

The refrigeration and liquefaction section is the key element of the LNG plant. There are a lot of licensed processes available with varying degrees of application and experience. The basic principles for cooling and liquefying the gas using refrigerants involve matching as closely as possible the cooling/heating curves of the process gas and the refrigerant. This results in a more efficient thermodynamic process requiring less power per unit of LNG produced. This applies to all liquefaction pro

The refrigeration and liquefaction section is the key element of the LNG plant. There are a lot of licensed processes available with varying degrees of application and experience. The basic principles for cooling and liquefying the gas using refrigerants involve matching as closely as possible the cooling/heating curves of the process gas and the refrigerant. This results in a more efficient thermodynamic process requiring less power per unit of LNG produced. This applies to all liquefaction processes.

However, the way this is achieved and the equipment used play a major part in the overall efficiency, operability, reliability and cost of the plant. The liquefaction section typically accounts for 30 ± 40% of the capital cost of the overall plant.


MORE INFORMATION

Download document



Related Knowlegde

Sign up to our Newsletter

Fill in the details below