Deep deoiling technique for solid wastes driven by cyclonic centrifugal force

doi:10.1016/j.seppur.2024.128556

Deep deoiling technique for solid wastes driven by cyclonic centrifugal force

2025-02-01

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DOI：10.1016/j.seppur.2024.128556

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With the development of cyclone desorption of solid wastes, improving desorption performance has attracted great attentions ever since. Having fully understood the cyclone deoiling mechanism for oil-based mud cuttings, critical factors including cyclone structure and operating parameters were further studied via computational fluid dynamics simulation. The physical properties of cuttings before and after cyclone deoiling were examined experimentally. The results suggested the periodic coupling centrifugal force generated from coupled self- rotation and revolution motions of cutting particles was the driving force that promoting oil desorption. By reducing the column height, increasing the cone angle, decreasing the overflow diameter and increasing the inlet gas velocity of the cyclone, the cyclone deoiling intensity of the cuttings could thus be enhanced. After treatment, the oil content of cuttings decreased from 6.38% to 0.92% and the average removal efficiency of Cnwas n was 96.95%. Altogether, this work provides an approach to achieve deep deoiling of cyclone desorption technology and put an effort to develop green and sustainable oil and gas industries.

Keywords:

Oil-based mud cuttings

Cyclone

Particle self-revolution

Coupled centrifugal force

Deep deoiling

Deep deoiling technique for solid wastes driven by cyclonic centrifugal force

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