Noram - Gas-to-Gas Heat Exchangers
From Sulfuric Acid
Efficient gas exchanger designs with improved heat transfer performance and high reliability include:
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Product Details
- RF™ (Radial Flow) exchangers: The radial geometry achieves uniformly distributed gas flow perpendicular to the exchanger tube banks, and optimized use of all heat transfer surfaces. These exchangers can be used in any position in the sulfuric acid plant.
- SF™ (Split Flow) exchangers:The SF™ Split Flow option of the RF™ heat exchanger allows effective control of the tube and tubesheet temperatures at the cold or hot end of the exchanger, to mitigate condensation and/or thermal stresses. Types of SF™ offered:
- RF™-SF™ preheat exchangers: The Split Flow is used for a ‘cold sweep’ which decreases the tube wall temperature at the hot end. This increases the overall fuel efficiency and may be used to design a smaller, less expensive preheat furnace and heat exchanger solution.
- RF™-SF™ cold or cold interpass exchanger: The Split Flow is used for a ‘hot sweep’ which increases the tube wall temperature by up to 68°F (38°C). The SF™ exchanger operates well above the acid dew point, and significantly reduces sulfate fouling and corrosion.
- RF™-SF™ SO3 cooler: The Split Flow is used for a hot sweep’ which raises the tube wall temperature. This design can eliminate condensation / solidification of SO3, reduce the rate of sulfate fouling, and results in a compact heat exchanger.
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