Successful Application of Novel CTP-VA Type Pd/C Catalyst Developed by SINOPEC Shanghai Petrochemical Research Institute

Following the successful commercial application of the CTPIV type catalyst forp-phthalic acid hydrotreating, a new generation catalyst for hydrotreating of para-phthalic acid developed by the SINOPEC Shanghai Petrochemical Research Institute (SPRI) has been successfully applied in the commissioning of the 400 kt/a PTA unit at the Shanghai Petrochemical Company. Since the commissioning of the PTA unit on May 30, 2013, despite fluctuations of raw para-phthalic acid quality at the start, the novel catalyst has stood up to the strong impact of feedstock quality to deliver premium grade PTA at full load. The preliminary conclusion has shown that the CTPVA type Pd/C catalyst has resolved the issue related with excessively high catalyst activity at the beginning and instable induction period of product caused by higher content of impurities. The successful application of the CTP-VA type Pd/C catalyst at the Shanghai Petrochemical Company has symbolized that the SPRI has stepped onto a higher rung in research on the Pd/C catalyst.