Evaluation of LNG Train Operation Resulting from Refrigeration Compressor Re-wheel

Case Study• In an LNG production plant, multiple propane (PR) refrigeration compressor failures since commissioning led to re-wheeling • PR refrigeration system was not considered to be the main bottleneck, nevertheless improved production rates were realized • Full refrigeration system machinery evaluation highlighted the main uplift to be a result of improvement in the Mixed Refrigerant (MR) system • Thermodynamic coupling of upgraded PR loop with MR loop resulted in added capacity to MR loo