AP-71 Chemical Jacketed Reactor & Vessel Heating ©PSX2010 AP-71 011020101210 Application Profile Application: Jacketed Vessel Heating: Heating of Jacketed Vessels is critical to stimulating the solution reaction in the vessel. Typically live steam is introduced to the jacket on the vessel to heat the vessel. Many Jacketed Vessels are heated in controlled ramp up scenarios to affect the chemical reaction and then the cool down stage brings the vessel and solution back down to safe handling temperatures. Live steam’s temperature uniformity in vessel’s jacket can produce hot spots. Also, the thermal shock that occurs by the introduction of live steam can crack and damage glass vessels and crack welds on steel tanks. PSX Heater Solution: A PSX heater can be placed

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