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Services : Chemical Cleaning
MPW's chemical cleaning offers advantages such as, cleaning in areas only accessible by flow, eliminating dismantling of equipment for cleaning, and the need for entry into equipment. MPW's fleet of mobile storage tanks, high volume pumping, filtering and heating equipment facilitate chemical cleaning on a wide variety of piping and process systems. Cascade Method - MPW's Cascade Cleaning method has proven to be the most effective cleaning method to clean new or existing columns or towers within compressor stations and chemical refineries, returning equipment to optimum operating conditions. Degassing/Decontamination - MPW's specialized Degassing and Decontamination process readily removes potentially flammable or hazardous gases from industrial vessels, process piping and tanks, providing efficient recovery of valuable process equipment. Fill and Soak/Fill and Circulate - MPW's Fill and Soak/Fill and Circulate cleaning method can effectively clean boiler units, re-boilers, evaporators, pipelines, exchangers and cooling jackets with controlled or natural circulation. Deposits, scale, and contaminants, rapidly foul equipment, affect efficiency and heat transfer. Foam Cleaning - MPW's foam cleaning technology provides a fast, efficient and economical method of removing organic and inorganic deposits. MPW's foam cleaning technology provides a complete chemical contact and distribution of all equipment surfaces. Vapor Phase Cleaning - MPW's Vapor Phase cleaning process consists of injecting pre-mixed chemical solvents into a high-velocity steam flow which forces the solvent to coalesce on the interior pipe surface, causing the cleaning process to be carried out. Line Pigging - MPW utilizes line pigging techniques to effectively clean restricted internal pipe systems, restoring flow rates and reducing pumping pressure. Due to minimal access points, line pigging provides a more cost-efficient cleaning method than hydroblasting techniques. MPW chemical technicians specify a quantity of selected chemicals based on the deposit configurations within Glycol dehydrator units, and columns and towers. Contaminants such as oil can aggravate corrosion by hindering the ability of a chemical corrosion inhibitor to function. Utilizing state-of-the art pumping equipment, the chemicals are injected into the bottom of the tower and circulated to the top. The chemical cascades through trays and down the walls of the tower to remove unwanted impurities. Systems are then neutralized and flushed. MPW Degassing process utilizes a select blend of proprietary chemicals to degas tanks and vessels, meeting even the most rigorous safety, environmental and wastewater conditions. MPW's primary goal is to lessen LEL's (Lower Explosive Limit) and exclude Benzine products quickly, and keep them down prior to entry and hot work. In industrial settings, methane, carbon monoxide, hydrogen sulfide and hydrogen are the combustible gases of primary concern. Proprietary reagents are used simultaneously to degas and decontaminate tanks and vessels prior to entry, welding or other hot work. Decontamination MPW's Decontamination process is environmentally safe, fully biodegradable and compatible to all metallurgy. During a turnaround, equipment scheduled for decontamination is devitalized and depressurized. MPW technicians utilize ancillary pumping equipment to circulate surface-active chemicals and solvents through the system at maximum velocities to effectively remove heavy-end and light-end hydrocarbons. Effluent generated during the decontamination process is pumped to a holding tank to be discharged. MPW's Fill and Soak method is utilized for cleaning boiler units, re-boilers, evaporators, pipelines, exchangers, cooling jackets and passivation for process equipment. The internal surfaces of process equipment in contact with water and steam must be kept clean and free of deposits to assure efficient heat transfer in the generation of steam. MPW chemical technicians fill the unit with a select inhibited acid solution at the correct operating temperature and mandate a soak for an estimated timeframe based on the chemistry. MPW chemical technicians monitor circulation temperature, path and flow to optimize deposit removal. MPW laboratory results indicate the cleanliness of the unit prior to draining and the system receives a final rinse stage. Fill and Circulate MPW's Fill and Circulate method is utilized for cleaning boiler units, re-boilers, evaporators, pipelines, exchangers and cooling jackets with natural circulation and positive liquid flow paths. MPW chemical technicians study various chemical formations to assure the proper chemistry is selected prior to filling. Inhibited acid solution is circulated within the unit for an estimated timeframe, removing copper and iron oxide scale accumulated during operation. MPW's on-site laboratory results indicate the cleanliness of the unit prior to draining and the system receives a final rinse stage. MPW's Foam Cleaning technology provides a fast, efficient and economical method of removing most inorganic deposits from heat exchangers, condensers, flare lines, gas and steam turbines, towers, piping and entire boiler systems including superheaters. With limiting factors being only volume and deposit solubility, foam can be used to clean equipment through which a fluid will flow. The selected solvent is transformed into foam when gas pressure is forced through the operating system, providing a complete chemical cleaning contact on all surfaces. The result is a thorough and cost-effective cleaning method. Rust inhibitors are utilized to minimize corrosion, and initial chemical volume is reduced and chemical waste is minimized. Equipment operates more efficiently for a longer period of time compared to mechanical methods of cleaning. Foam cleaning is the ultimate choice when the chemical volume is so large that it is impossible to circulate. MPW's Vapor Phase cleaning process consists of injecting pre-mixed chemical solvents into a high-velocity steam flow which forces the solvent to coalesce on the interior pipe surface, causing the cleaning process to be carried out. The advantage of this method allows a minimal amount of material to effectively clean interior pipe surfaces for varying diameter process piping. The once through process, allows the velocity of the steam to carry loose sediments to the exit point where the waste, steam and chemicals are quenched and disposed of. Vapor Phase technology is ideal for pre-commissioning cleaning, gaseous oxygen and high purity gas lines, and above ground lines that cannot tolerate a liquid flow cleaning process. MPW's Vapor Phase cleaning reduces material requirements and costs and waste is minimized.
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MPW chemical technicians and engineers have over 125 years on-the-job experience meeting critical (CIP) cleaning needs within compressor stations, power generation plants, chemical and petro-chemical plants, pulp and paper mills, and manufacturing facilities. The chemical team cleans boilers of all sizes, large cooling water systems, condensers, turbine blades, reactors, heat exchangers, turbine oil systems, jacket water systems, process piping and acid/caustic tanks. Chemical cleaning plays a vital role in maintaining unit operation and design efficiency, by safely eliminating fouling deposits and corrosion when the unit or system is placed into or returned to operation during pre-commissioning stages, routine maintenance and outages. Through MPW's chemical cleaning services, unit life expectancy is increased, heat transfer is improved, and flow issues are restored. Each operating system is carefully analyzed and a solubility study is conducted with various chemical formulations, taking into account deposit configuration, source of origin, system metallurgy, flow path, velocities, operating temperatures and pressures. 
