In order to achieve nationalization of Recycle hydrogen compressor used in large-scale PX installation, a practical industrial recycle hydrogen centrifugal compressor was studied in this paper. According to the multiple and wide load spelial working condition,the demonstration and analysis of aerodynamic design of the compressor under multiple and wide load were carried out, which was achieved by aerodynamic calculation software. A 3-D impeller with high efficiency and wide flow range was used, and compress...