From July 24thto 27th, the YS-8810 silver catalyst in Shanghai Petrochemical No. 2 ethyleneglycol unit carried out a 72 hour initial performance assessment.

This batch ofYS-8810 silver catalyst was loaded in the device on June 13th this year. Afterthe start up and preliminary optimization, the catalysts’ overall performance wasbetter.

During the testperiod, the drum temperature of the reactor wais 215.97 ℃, and theyield selectivity was 85.23%, which was superior to the contract guaranteevalue.