Purification technology of oil mist in industrial buildings: A review

Oil mist is an airborne liquid pollutant produced in industrial buildings, which is hazardous for indoor and outdoor environments and the health of personnel. To safeguard the quality of the indoor and outdoor environments of industrial buildings, purification methods are required to remove the generated oil mist. Oil mist particles differ significantly from solid particles in terms of their physical parameters and morphology. The purification process can be affected by phenomena such as breakup, easy to attach, and flow on the surface of purification equipment. Therefore, the oil mist purification technology has significant particularity. In this review, the research progress of oil mist particle purification technology in recent years is discussed from the perspective of the difference between oil mist particles and solid particles. The emission characteristics of oil mist in typical industrial plants are concluded and the progress of different purification technologies are summarized. The review concludes with an outlook on the challenges and development directions of oil mist purification technologies.