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Chemical Processing DOWTHERM™ Synthetic Organic Fluids and SYLTHERM†1 Silicone Fluids are widely used in processing operations ranging from -100°C (-150°F) to 400°C (750°F). They may be used for indirect heating of process liquids and polymers, single-fluid batch processing, pipeline tracing, energy recovery, low pressure cogeneration, drying and heating of bulk materials, gas processing, ebullient cooling, and many others. Process Heating and CoolingHeat transfer systems are an integral part of many chemical production processes, including LAB (linear alkyl benzene), phthalic anhydride (PA), purified terphthalic acid (PTA), dimethyl terphthalate (DMT), olefins, alcohols, plasticizers and a variety of other petrochemicals. DOWTHERM Synthetic Organic and SYLTHERM Silicone Fluids are widely used in the chemical process industry because of their high temperature stability. Each chemical process has different operating parameters that will guide selection of the best heat transfer fluid. The family of DOWTHERM and SYLTHERM heat transfer fluids includes a broad range of products with recommended operating temperature ranges to meet the requirements of nearly any chemical process. The stability of these fluids at high temperatures results in long-term, trouble-free system performance. In water-based cooling circuits, DOWTHERM, DOWFROST™ and DOWCAL™ Inhibited Glycol-based Fluids may be used to prevent freezing and/or depress cooling temperature, while protecting against corrosion. Fine Chemical Batch ProcessingSYLTHERM XLT Silicone Fluid has a broad operating temperature range of -100ºC (-150ºF) up to 260ºC (500ºF), making it especially well-suited for single-fluid process heating and cooling systems. Also useful is DOWTHERM J Synthetic Organic Fluid with a recommended liquid phase operating temperature range of -80°C (-110°F) up to 315°C (600°F). DOWTHERM, DOWFROST and DOWCAL Inhibited Glycol-based Fluids provide low temperature pumpability and freeze protection and high temperature operation which makes them useful in water-based single fluid process heating and cooling applications with more modest heating requirements. Waste-Heat RecoveryMany processing operations require heat removal or cooling. Cooling is often accomplished through the use of conventional heat exchangers, using liquid phase and/or liquid and vapor phase heat transfer fluids. After the fluid has removed heat, it can be circulated to heat downstream processes or otherwise recycle and recover the waste-heat. This helps reduce overall energy costs. Several DOWTHERM Heat Transfer Fluids are particularly well-suited for heat recovery operations. These thermally stable, non-corrosive products transfer heat efficiently and effectively in a wide range of processing environments.
† Trademark of Dow Corning Corporation.
1 Dow is a distributor of SYLTHERM products manufactured by Dow Corning Corporation. ®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow.
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