High Pressure Polymerisation of Ethylene Pressure 1500-2500bar(1bar=0.1MPa) Residence time 100-150s Reactor Diam.34-50mm;L=400-900m 1c10° reser Tubular reactor and stirred tank purge 1500-3000bar LP-compressorHP-compressor -stripper Wax separation 150-300at LP-stri compression polymerisation depositionHigh Pressure Polymerisation of Ethylene Pressure : 1500 –2500 bar（1bar＝0.1MPa） Residence time: 100 –150 s Reactor: Diam. 34 – 50 mm; L = 400 –900 m compression purge polymerisation deposition LP-stripper HP-stripper 150-300at LP-compressor HP-compressor 1500-3000bar Tubular reactor and stirred tank Wax separation