HP550J yahawe uruhushya na Lyondell Basell's Ikoranabuhanga rya Spheripol. Ibikoresho bya propylene bibyara umusaruro binyuze muri PDH, kandi sulfure yibintu bya propylene monomer ni bike cyane. Igicuruzwa gifite ibiranga imbaraga nyinshi, gukomera cyane, guhindagurika neza, gutunganya byoroshye, impumuro nke nibindi.