Liaoyang Petrochemical Delayed Coking Unit Heating Furnace Energy Saving Reform Successfully Increases Thermal Efficiency

As of September 22, Liaoyang Petrochemical Company delayed the coking unit two sets of technical reform furnace after a coke cycle inspection, the furnace wall temperature dropped from 102 °C to 51 °C, thermal efficiency increased from 88% to 92%, marking the Liaoyang Petrochemical The delayed coking unit heating furnace was successfully adapted to natural gas alternative fuel oil and liquefied gas energy saving. According to calculations, each furnace can save 1,932 tons of fuel gas each year, which can save 3.14 million yuan of funds.
Technicians choose a heat pipe type air preheater with simple structure, small size, light weight and long life. Air bypass is set on the air passage to improve heat transfer capability and prevent low temperature dew point corrosion. Ceramic coating can be used to reduce energy consumption. Layer technology to improve the uniformity and stability of the temperature in the heating furnace; at the same time, the main components such as the heating furnace furnace outer wall plate, convection furnace oil pipe, steam furnace tube, air preheater, and high-efficiency burner are replaced, and the coke drum is implemented. Brace insulation renovation. After the transformation, the heating furnace heats up smoothly and the oil is steadily pumped. The product is qualified for delivery, and the equipment operating conditions, process parameters, and energy-saving and emission reduction effects have fully met the expected targets.
For a long time, Liaoyang Petrochemical's delayed coking unit heating furnace has been relying on fuel oil and liquefied gas as fuel. Heating furnaces have potential safety hazards such as large energy consumption, severe furnace damage, and thinning of the furnace tubes, which affects the smooth operation of the equipment. In March 2013, Liaoyang Petrochemical Co., Ltd., in accordance with the requirements for cleaner production, began to implement energy-saving reforms on heating furnaces that use clean energy for fuel systems.

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