LNG

Annular Injection Mixer Approach Improves Evaporation of Heavy Hydrocarbons

This article focuses on the use of an annular injection mixer in vaporizing heavy hydrocarbon fractions into natural gas streams and the evaluation of evaporation performance by computational fluid dynamics.

AIM overview.
Fig. 1—AIM overview.

Evaporating heavy hydrocarbons has long been a challenging task, especially in a limited area that requires rapid vaporization of liquified petroleum gas (LPG) fractions within a short distance. A static mixer that the authors call the annular injection mixer (AIM) has demonstrated superior performance in providing immediate and uniform vaporization of LPG fractions into natural gas. The complete paper focuses on the use of AIM in vaporizing heavy hydrocarbon (C4–C9) fractions into natural gas streams and the evaluation of evaporation performance through computational fluid dynamics (CFD).

Breakup of Droplets

The efficacy of the AIM revolves around its capability to generate fine liquid droplets in the main gas stream. In the AIM, droplets generation takes place through a series of primary and secondary breakup processes.

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