Objective Explore the influence of shaking on the performance of centrifugal filter of sulfur recovery process.

Methods The self built anti-slosh pilot test device of the filter was used to conduct experimental research on the solid content of sulfur paste (mass fraction of solids in mixture), sulfur recovery and filtration efficiency under different shaking conditions, rotating speed of the centrifugal filter and mesh number of filter cloth, and the adaptability of the centrifugal filter in the offshore sulfur recovery process was analyzed.

Results (1) The centrifugal filter could still maintain a good filtering effect under the shaking condition, and the solid content in the output sulfur paste could reach more than 90%, the effect of shaking on the solid content of sulfur paste was not more than 6%, and the stability was better at high speed. (2) Sulfur recovery rate could be maintained at more than 94%, increasing filter mesh number or reducing speed could improve recovery rate. (3) Compared with 600 mesh filter cloth, 350 mesh filter cloth had higher filtration efficiency, and the filtration time could be shortened by more than 80%.

Conclusions In terms of filtration effect and operation stability, the centrifugal filter has strong offshore adaptability and can meet the requirements of offshore sulfur recovery process.