Abstract: The 1.2 Mt/a S Zorb unit of SINOPEC Changling Petrochemical Company has been running for more than three years. The measures for optimizing the filter operation, improving the heat exchanger efficiency of raw material, processing and regenerating the adsorbent agglomerate, reducing the line wear of temporary transfer agent as well as lock hopper system maintenance were summarized during the long operation period. The key to optimization of reactor filter operation is strengthening counter blowing system maintenance, smoothing reaction pressure control, monitoring large flange seal protection and discharging intermittently the powder in the system; the thermal efficiency can be improved by maintaining the raw materials purity and reducing feed heat exchanger fouling; the effect of adsorbent agglomerate on adsorbent recycling can be reduced by using the original dust unloading process. In the case of the horizontal tube poor in unloading, using the bend pipe with little and big instead of many small bend pipe can effectively reduce the wear of temporary transfer agent line. A series of measures to protect the wear in lock hopper program-controlled valve and shorten the failure processing time of the lock hopper make the S Zorb device synchronize with catalytic cracking unit.