Exhibition & Conference

13-16 September 2021

Singapore EXPO, Singapore

Technical Programme

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Mark Roberts

Engineering Associate

Air Products and Chemicals


16:00 - 16:30

Thursday, 19 September 2019

T3.10 LNG Mega-Trains Revisited

It has been over 10 years since the six 7.8 million tonnes per annum (MTPA) large capacity liquefaction trains in Qatar were commissioned.  These projects represented a step change in single train liquefaction capacity from the prior maximum of 5 MTPA and took advantage of economies of scale to lower unit production costs.   This capacity increase was enabled by the new AP-X® LNG Process Technology used, along with new developments in turbomachinery and other equipment.   

Recently there has been renewed interest in large capacity trains and their potential unit cost reduction.  Since the development of the original AP-X trains however, there have been significant advancements in gas turbine, compression, coil wound heat exchanger and other technology.  These advancements in LNG process technology enable new equipment arrangements for AP-X, AP-DMR™ and AP-C3MR™ technologies that offer benefits in liquefaction train availability, equipment count and operating cost.

The focus of this paper will be on how to utilize these developments for a new generation of large capacity trains while taking advantage of experience gained from the successful implementation of the six original AP-X mega-trains.