TARIC 8479.89.97.33 — Pre-assembled process module unit of an ethane cracker unit, containing: -various distillation columns (depropanizer, debutanizer and degreenoiler) and their associated heat exchangers, pumps and drums, -a chilling train containing heat exchangers and a drum which condenses C2 in a gas stream, -a system to separate hydrogen and methane from cracked gas containing heat exchangers, drums, turbines, compressors and a hydrogen purification unit (pressure swing adsorption unit), -associated equipment of a C3 splitter distillation column, containing heat exchanger, pumps and drums, and -a vinyl acetylene hydrogenation system, containing hydrogenation reactors, filters, mixer, drum, condenser, heat exchangers