Heat-resistant, non-stick and energy-saving coating for ethylene cracking furnace

Ethylene cracking furnace is a high-temperature resistant, anti stick, and energy-saving coating. The cracking furnace is a major energy consumer in ethylene plants, accounting for 50% -60% of the total energy consumption of the device. Reducing the energy consumption of cracking furnaces is one of the important ways to reduce the cost of ethylene production. The energy-saving of ethylene cracking furnace is mainly composed of three important components: radiation section, convection section, and cracking gas waste heat recovery system. Among them, radiation energy-saving coating is a widely used and low-cost method. RLHY-201 high-temperature resistant thermal conductivity anti-corrosion coating can reduce fuel gas consumption, lower exhaust gas temperature, improve thermal efficiency of cracking furnace, extend coke cleaning cycle, and increase ultra-high pressure steam production.

The RLHY-201 high-temperature thermal conductivity wear-resistant anti-corrosion and anti coking energy-saving coating for ethylene cracking furnace utilizes the characteristics of high absorption, high heat storage, high radiation, and high heat release of blackbody materials to enhance radiation heat transfer, improve the thermal conductivity of the coated metal surface, and enhance the acid resistance and corrosion resistance of the substrate. Therefore, it is an energy-saving anti-corrosion coating with high heat conduction, high temperature corrosion resistance, acid resistance and high radiance. After spraying a layer of RLHY-201 high-temperature thermal conductivity, wear-resistant, anti-corrosion, and anti coking energy-saving coating on the surface of the inner lining of the cracking furnace tube, a hard ceramic enamel shell is formed on the surface, which can enhance the heat transfer of the furnace tube, thereby improving heat transfer efficiency and saving fuel consumption; Secondly, after strengthening heat transfer, the dynamic state inside the cracking furnace tube is improved, thereby increasing the selectivity of the target products in the cracking process; In addition, due to improved heat transfer, the wall temperature of the furnace tube has decreased, which is beneficial for extending the operating cycle of the cracking furnace.