Centrifugal Flow Compressor Cleaners

Specialty Compressor Cleaners

The Problem

Centrifugal compressors used in production often face the challenge of accumulating gas stream contaminants, both organic and inorganic. These foulants impede the gas flow, leading to reduced compression efficiency and increased operating temperatures. Elevated temperatures, in turn, contribute to fouling by causing the polymerization of deposited contaminants. The end result is a decline in compressor performance and an overall reduction in plant efficiency.

Given that these contaminants are inherent byproducts of the gas processing, traditional methods such as filtration or extraction are not practical solutions. Cleaning with abrasive compounds poses the risk of erosion on aerodynamic surfaces and damage to high-performance coatings. Operational constraints, due to product schedules, make it challenging to shut down the system solely for manual cleaning. Consequently, many operators opt for online cleaning methods, involving continuous injection of water or petroleum-based solvents. While water offers some cooling benefits, it has limited efficacy in contaminant removal. On the other hand, petroleum-based solvents excel in eliminating organic contaminants but struggle to dissolve inorganic ones. ECT’s wash oil additives and detergents offer a cost effective method to achieve both cooling and cleaning during injection.

THE SOLUTION: Relion

ECT offers the best solution to the problem of fouling with its unique combination of mechanical and chemical systems approach. Our proprietary system includes an array of spray nozzles, located on the compressor case in a manner which optimizes spray coverage of fouling prone surfaces with Relion compressor cleaners and a fluid delivery skid which controls the injection process to very close volumetric and dispersion tolerances. The delivery system, used with the appropriate RELION cleaning product, can sustain compressor efficiency in even the harshest fouling environments for long running periods.

THE ECT APPROACH... As a first step, ECT analyzes the chemistry of the foulants to determine which RELION product(s) are likely to be most effective in removing the contaminants. Next, we look at the fouling patterns to determine the number and design of nozzles. Based upon known spray production parameters, we design the delivery system to meet the flow and pressure requirements. The fluid delivery skid is typically a pump/motor assembly capable of providing constant flow and pressure and controlled by a PLC in an enclosure that meets the site utility standards and hazard classifications.

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