Key figures have been extracted from the basis simulation file in COCO/COFE and compared to the results from Luyben. The results are summarised in Table and Table . although this is a cross-heat exchanger for heat recovery). For all compressors, the energy requirement deviates less than 4%. The heat exchangers in feed gas compression and the synthesis loop, show deviations at a comparable level with some exceptions. HX1 after the first stage feed compression deviates more, which is also linked to a higher compression power requirement. The one exchanger with the highest relative difference is HX3 upstream the reactor, but the absolute difference is only moderate.