Application Progress and Development of HPPO Catalysts
Started from laboratory research,catalyst development and small-scale,pilot testing to the number of hydrogen peroxide propylene oxide(HPPO)industrial plants and scale of propylene oxide(PO)products rank first in the world,than HPPO and PO industrialization technology with fully independent intellectual property rights have been formed.Currently,The HPPO catalysts used in large-scale industrial production mainly include the TS-1 catalyst of Evonik-Uhde from abroad and the TS-1 catalyst of BASF-Dow from abroad and the HTS catalyst.The H2O2 conversion rate of two foreign TS-1 catalysts is 97.0%,PO selectivity is 90.5%and PO yield is 87.8%.The H2O2 conversion rate of HTS catalyst is 99.0%,PO selectivity is 98.0%and PO yield is 97.0%.The conversion rate,selectivity and yield technical indicators of HTS catalyst are all at the international leading level.Along with the continuous new HPPO industrial plants operation,in order to maintain the competitive advantage in the PO product market,it is necessary to further explore the potential of HPPO catalysts and the optimization of HPPO catalysts is a long and arduous task.