An introduction to the materials used for petrochemical catalytic cracking reactors and regenerators
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Reactor (settler): The shell is made of carbon steel with a heat-insulating and wear-resistant lining; the cyclone separator is constructed from carbon steel and 15CrMo, while the stripping section is made of 15CrMo and carbon steel with a heat-insulating and wear-resistant lining. Regenerator: Shell made of carbon steel + heat-insulating and wear-resistant lining; materials for the internal components such as cyclone separator, leg rods, distribution plates, distribution tubes, and suspension rods; medium temperature
Petrochemical catalytic cracking reactors are typically made of carbon steel, with an insulating and wear-resistant lining on the outer surface to withstand high temperatures and wear. The cyclone separator inside the reactor is made of 15CrMo alloy steel, a material that possesses excellent high-temperature strength and corrosion resistance. The stripping section uses a combination of 15CrMo and carbon steel, with heat-insulating and wear-resistant linings on both the inside and outside to enhance durability. The shell of the regenerator is also composed of carbon steel and a heat-insulating, wear-resistant lining to withstand high-temperature conditions. Its internal components, such as cyclone separators, leg plates, distribution plates, distribution tubes, and suspension rods, are typically made of 15CrMo material to ensure stable performance and durability in high-temperature environments. The selection of these materials takes into account the temperature, pressure, and corrosivity under process conditions. .