Use of Oil-Flooded Screw Compressors with Rolling Bearings Under Severe Sour Gas Conditions: The Bearing Technology & The Reference Installation
A retrofit with new rolling bearing technology has resulted in a life increase in the excess of eight times for an oil-flooded screw compressor installation working under severe sour gas (40-50%) conditions. This work shows the possibilities to use oil-flooded screw compressors with rolling bearings as a highly reliable solution for demanding process gas applications within refineries, gas plants and gas well gathering. The various steps in the implementation of the new bearing system, practical experiences and the effects from the running of them will be given. In addition, the material design features of the bearings will be explained and the effects towards in the past encountered problems under severe process gas conditions will be discussed.