Retention of composition of liquefied natural gas on vapourisation

Abstract

A method of vapourising a sample of liquefied natural gas so as to retain the proportions of components of the liquefied natural gas on vapourisation, the method comprising the steps of: introducing liquefied natural gas into a liquid inlet (112) of a liquefied natural gas vapouriser (110); vapourising the liquefied natural gas at a vapourisation element (134) of the liquid inlet (112); and directing vapourised liquefied natural gas into a vapourisation conduit portion (120) directly after the liquid inlet, the vapourisation conduit portion (120) having a fall, thereby encouraging vapourised liquid natural gas to be directed against a flow direction of liquid or liquid-gas phase natural gas in the vapourisation conduit portion to encourage remixing of the vapourised liquid natural gas and liquid or liquid-gas phase natural gas A liquefied natural gas vapouriser (110) suitable for the above method is also provided.

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