High gradient magnetic separation II: Single wire studies of shale oils

The single wire high gradient magnetic separation (HGMS) technique was used to investigate the buildup process of solid particles found in several different types of shale oils. The effects of slurry temperature, magnetic field, flow velocity, and solvent concentration on solid removal were determined. The results indicate that the HGMS technique is effective in removing solid particles from shale oil fluids. The efficiency can be further improved by reducing the viscosity of the shale oil slurry by heating and/or solvent dilution.