1.1 OVER VIEW Fresh propane is supplied by external tank trucks .The unloading is done in a dedicated area where facilities are provided to connect the supply truck to the propane refrigerant storage bymeans of flexible hoses . Fresh propane make up is direct to the refrigeration units of unit 107 when required . The inventory of two refrigeration trains is transferred by pumps within unit 107 to the propane refrigerant storage unit through a propane dryer package within unit 145.
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