Extract from
The American Society Of Mechanical Engineers

www.asme.org

Lubrication Oil Reservoir Mist Elimination
RONALD O. BELDEN
ASME

ABSTRACT
With emission standards becoming more and more stringent, reducing Lube Oil Reservoir Vent (LOV) mist emissions is receiving increased attention. This paper explores the nature of this oil mist, explains emission standards, describes some of the equipment that has been used in an attempt to control these emissions, and details the use of fiber beds in this application. Fiber beds have been more successful than other approaches at controlling LOV mist because of their ability to exceed emission standards with low pressure drop, minimal maintenance requirements, and guaranteed collection efficiency.

LUBRICATION OIL RESERVOIR MIST ELIMINATION
As lubrication exists from a bearing, a certain amount of the oil is aerated, forming a mist of aerosol-size particles. These particles are very small (most less than 1 micron dia.) and their capture is difficult. When air pollution standards were less stringent, oil-mist emissions from lubrication reservoirs, gear boxes and ventilation systems were often overlooked, ignored, piped to the turbine exhaust for wide dispersion, or even considered to be uncontrollable. Early attempts to remove oil mist from the vapor failed because of insufficient knowledge of the mist particles´ size and flow characteristics plus the inherent collection limitations of the internal mist eliminators used.

 

Abstract  |  Particle Size  |  Collection Methods  |  Fiber Beds  |  Collection Efficiency  |  Benefits

 

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