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Recommended materials for heat exchangers in catalytic cracking units

2025-09-18View Original

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Catalyst cooler (external heat exchanger): The shell is made of carbon steel with a heat-insulating and wear-resistant lining; the evaporation tubes are typically made of 15CrMo, while the superheating tubes are made of 12Cr1MoV or 1Cr5Mo. The internal components are made of 0Cr18Ni9. Recirculation oil heat exchanger: Medium temperature

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