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Transportation of low-ash fuels can so increase the levels of sodium and other ash-forming compounds as to cause serious corrosion and deposition problems in gas turbines burning these contaminated distillates. Electrostatic separation provides an advantageous alternative to more familiar methods of on-site fuel treatment used to restore fuel quality. The theory and applications of electrically effected phase separation are described in this paper. On-site purification by electrical means can achieve sodium levels of 1.0 to 0.2 ppm in candidate low-ash fuel oils. Sufficient data are presented to facilitate cost estimates for this approach to purification of gas turbine fuels.
gas turbines, corrosion, fuels, quality control, purification, desalting, washing, fuel transportation, fuel contamination, distillates, crude oil, residual oils, sedimentation, filtration, centrifuging, emulsions, coalescing, electrostatic separators
Group leader, Physical Research, Tretolite Div., Petrolite Corp., Saint Louis, Mo.
Supervisor, Petrolite Corp., Houston, Tex.