A novel catalyst for PTA manufacture: Carbon nanofiber supported palladium

摘要

1) Preliminary research indicates that CNF, with special morphology and porosity, is a prospective support for palladium catalyst with high activity when applied to CTA hydropurification. 2) Preparation conditions of Pd/CNFs by wet impregnation method, such as palladium precursor, impregnation time, calcinations and reduction, are proved to have profound effect on the catalytic property. The catalyst prepared by impregnating H_2PdCl_4 precursor in an hour, then calcinated in air and reduced in 20%H_2/Ar is believed to perform better in CTA hydropurification than the industrial Pd/C under laboratory conditions.