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LIQUID NITROGEN CLEANING 8 I WWW.CONCO.NET Harnessing the power of liquid nitrogen NitroLance can remove incredibly difficult deposits safely and without producing secondary waste streams. It has been used in power plants to restore flow where severe airside fouling of heat exchange surfaces in air preheaters reduces power output. NitroLance is quicker than high-pressure water or chemical cleaning. And because liquid nitrogen readily dissipates there is zero secondary waste saving our customers thousands of dollars in cleanup costs. NitroLance is a safe alternative to high-pressure water jetting.Where high-pressure water can be hazardous at distances greater than six feet the liquid nitrogen jet from NitroLance extends only a few inches. Liquid nitrogen is ideally suited for adverse cleaning environments yielding quicker turnarounds for critical path components. In addition to being fast NitroLance customers have reported performance improvements in heat transfer by up to 20 on units cleaned with this technology. NitroLance also provides optimal cleanliness for vessels being examined with Remote Field or Eddy CurrentTesting. NitroLance is available with a variety of nozzle configurations for fast and effective cleaning of tough deposits in industries such as n Power Generation Preheaters Heaters and Coolers n Refineries Sulfur Recovery Units Fire Heaters and Furnaces n Catalyst Services Reactor Cleaning n Alumina Bauxite Heat Exchanger Cleaning The Conco NitroLance saves time and money in precision cleaning applications yielding zero secondary waste. Features n Faster than hydrolance or chemical cleaning n Dramatically improves turnaround time for critical path equipment n Can remove deposits where conventional methods fail n Liquid nitrogen evaporates leaving only the deposit to remove saving you time and money n Technology so safe on equipment it has been used by NASA to clean the Space Shuttle How ItWorks The super-cooled cryogenic jet emerges from the NitroLance nozzle entering solid deposit cracks and crevices and then expands rapidly breaking up deposits from the inside. NitroLance nozzles are customizable for any application ensuring precision cleaning. The NitroLance can clean vertical or horizontal heat exchangers in place eliminating the need for costly removal or crane services. Cleaning air heaters in power plants or recovery boilers has traditionally involved using high-pressure water chemicals or steam. These techniques though effective on moderate airside fouling of heat exchange surfaces are usually ineffective on the more tenacious deposits that can develop in coal-fired plants. If these deposits are not removed by periodic cleaning heat transfer in the heaters is reduced which in turn reduces boiler efficiency and increases a units heat rate. Severe fouling on air preheaters APHs can even reduce a units power output.