关键词: S Zorb装置, 反应器过滤器, 压力降, 滤芯性能, 孔径, 渗透率, 压溃强度, 能谱

Abstract:

SINOPEC Zhenhai Refining & Chemical Company has two sets of S Zorb units, 1.5 MM TPY and 1.2 MM TPY. At the end of operation, the pressure drops of the reactor filters of the two units are 33 kPa and 100 kPa respectively. There is no significant difference between the two in terms of operating parameters, filter body composition, and adsorbent composition, except for the number of filter elements. To explore the fundamental reason for the significant difference in pressure drop between the two reactor filters, the two sets are dissected. The appearance analysis shows that the structure of the filter element is complete and there is no rusting phenomenon. There are significant differences in the pores and permeability of the filter element under different pressure drops. The crushing strength test shows that the strength of the filter element meets the requirements and has a certain improvement. The analysis of pore size and permeability shows that the adsorbent is mainly distributed on the outer surface of the filter element at low pressure drop, but at high pressure drop, the adsorbent infiltrates into the inside of the filter element, causing a significant decrease in permeability and difficulty in restoring it through reverse blowing. The energy spectrum analysis of the outer surface of the filter element indicates that the substance on the outer surface of the filter element is an adsorbent, and the filter element itself has not undergone sulfide corrosion.

Key words: S Zorb unit, reactor filter, pressure drop, filter element performance, pore size, permeability, crushing strength, energy spectrum