NEW DEVELOPMENT OF THE TEALARC NATURAL GAS LIQUEFACTION PROCESS

Abstract

Technip has experience in the LNG field obtained through the design and erection of two base load natural gas liquefaction plants in Algeria and the process licensing of 13 peak-shaving units mainly in North America.

Through its operating experience of base-load plants and the research and development studies performed, Technip has improved the Tealarc liquefaction process with regard to the main criteria: efficiency, reliability, flexibility, simplicity and has also adopted the Tealarc process to the use of centrifugal compressors. In this case the Tealarc process is split into two different cycles, the first Tealarc cycle called "Precooling cycle" is used to partially condense the cryogenic fluid of the second Tealarc cycle called "Liquefaction cycle" which performs the condensation of the natural gas and the subcooling of LNG.

This arrangement of the precooled Tealarc process allows the realisation of large capacity liquefaction trains while satisfying the limitation of the centrifugal compressor

In 1976 French and Italian experience in the LNG process sector were combined through a permanent joint-venture between Technip and Snam Progetti.