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Yan’an Energy Chemicals: Unleashing Potential to Reduce Costs, Achieving Real Results in Energy Saving and Consumption Reduction Author/Source: Yan’an Petroleum Energy Chemicals Date: November 19, 2021 Clicks: 8 It was learned from Yan’an Energy Chemicals that from January to October this year, the energy consumption per unit of product was 2,796.1 kilograms of standard coal per ton, which is lower than the national benchmark of 3,700 kilograms of standard coal per ton; this figure places the company at the leading level among similar enterprises in China, demonstrating significant success in efforts to save energy and reduce consumption. Since the beginning of this year, in order to reduce enterprises’ energy consumption and production costs and improve their overall efficiency, Yan’an Energy Chemical Company has taken precise management of energy consumption as a key approach. At the start of the year, a leadership team for energy conservation and consumption reduction was established, work plans were formulated, and specific targets for energy consumption control were set for each production unit. Responsibilities were assigned at various levels to ensure that these measures are properly implemented. The company has implemented a series of technical improvement projects, continuously improving the production processes and optimizing the operation of its facilities to effectively reduce energy consumption. By adding a new treatment unit capable of processing 15 cubic meters of sludge per hour, the wastewater treatment facility in the South District has resolved the problem of sludge accumulation caused by insufficient peak processing capacity, thereby ensuring the stable operation of the facility and saving tens of millions of yuan in sludge treatment costs each year ； By adding a low-pressure steam pipeline, the natural gas conversion synthesis unit recovers the steam that was previously vented at a rate of 25 t/h and sends it to the external low-pressure steam network, thereby eliminating any venting of steam from the synthesis drum. It is estimated that 184,000 tons of steam can be recovered each year ； The sulfur recovery unit recovers by-product medium-pressure steam, with an annual recovery volume of 31,500 tons of low- and low-medium-pressure steam expected ； The flare gas recovery system has increased the amount of flare gas that can be recovered by adding a liquid ring compressor with a capacity of 2,000 standard cubic meters per hour; it is estimated that 16 million cubic meters of flare gas can be recovered annually ； By recycling the gas discharged at the inlet of the recycle gas compressor and the gas emitted from the top of tower T-3201, the polyethylene plant is expected to recover 3,024 tons of ethylene per year. Especially in the fourth quarter, the situation regarding the supply of energy and electricity became increasingly severe, with power-saving policies being tightened continuously. The company took prompt action, actively learned from best practices, and made efforts to optimize the power factor; this helped to improve the efficiency of power supply equipment, reduce losses in the transmission lines, ensure the quality of power supply, and meet the needs of normal production activities. As of October, a total savings of 1.1943 million yuan in electricity costs has been achieved, effectively reducing power supply expenses.