Apci's Technology Development

TECHNOLOGICAL DEVELOPMENTS MAIN DEVELOPMENTS IN LIQUEFACTION SECTION * SMR PROCESS C3-MR PROCESS AP-X HYBRID PROCESS * Liquefaction accounts for nearly 50 % of total cost Contd.

TECHNOLOGICAL DEVELOPMENTS APCI’s Development in Refrigeration Technology Single MR (Mixed Refrigerant) Process Use of Single Mixed Refrigerant for following :  Pre-cooling  Liquefaction  Subcooling Disadvantages :  Refrigeration efficiency is low.  Lower Plant Capacity

Contd.

TECHNOLOGICAL DEVELOPMENTS APCI’s Development in Refrigeration Technology C3-MR process  Pre-cooling using Propane

 Liquefaction, Subcooling using MR

Advantages over MR Process: • Higher efficiency • Substantial increase in capacity (up to 5 MMTPA) due to reduction of MR volumetric flow

Contd.

TECHNOLOGICAL DEVELOPMENTS APCI’s Development in Refrigeration Technology AP-XTM Hybrid LNG Process  Pre-cooling using Propane

 Liquefaction using MR  Subcooling using Nitrogen Advantages over C3-MR Process: • Higher efficiency due to use of N2 in the lowest temperature range section • Substantial increase in capacity (upto 8 MMTPA) due to reduction in Propane & MR volumetric flow