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6 Antonino La Rocca et al.
There are still many problems to transfer cold recovered outside the
regasification site, because the long distances need a suitable brine or safe
fluids.
In a previous work of the Research Team at Dipartimento dell’Energia of
Palermo University, which Authors belong, is proposed the process shown in
Fig.2, concerning a modular multipurpose regasification facility in order to
recover LNG physical exergy for cold utilization.
Fig. 2 –A proposed plant for cold recovery during LNG regasification
(La Rocca, 2010).
The design of the process allows the use of cold at two different
temperatures: one lower for industrial use and one higher, suitable for other
applications. Two applications utilizing cold recovered are here considered: a
cluster of Agro Food Factories and a large Hypermarket.
The plant proposed is modular and has a regasification capacity of 2 × 10 9
Stm 3 /y when working 270 d/y 24 h a day all the year around.
The facility requires an intermediate Power Cycle, working with a
suitable fluid such as Ethane, able to produce 3MWof electric power, but the
own purpose of the modular unit is to deliver cold suitable for industrial and
commercial use in the proper temperature range utilizing Carbon Dioxide as
secondary fluid to transfer cold from regasification site to far end users.