Sec. 219-2.3. Design requirements

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(a) Furnace design must provide for:
(1) a residence time for combustion gas of at least one second at no less than 1,800°F; or
(2) a residence time for combustion gas and a temperature which, in combination, are shown to be equivalent to paragraph (1) of this subdivision.
(b) Furnace design must include auxiliary burners capable of meeting the requirements of section 219-2.4(b) of this Subpart.
(c) Control equipment for reducing emissions of hydrogen chloride must be designed such that the flue gas temperature at the outlet from the control device does not exceed 300°F unless a demonstration is made that an equivalent collection of condensible heavy metals and toxic organics can be achieved at a higher outlet temperature or through the use of alternate technologies.

                    
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