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Recently, the Comprehensive Department of the **Energy Administration released the \"Compilation of Advanced Technologies for Energy Saving and Carbon Reduction in the Refining Industry\" and the \"Compilation of Typical Cases of Energy Saving and Carbon Reduction in the Refining Industry.\" A total of 14 advanced technologies and 12 typical cases were identified; 11 technologies and 4 cases from Sinopec were included in these compilations. Today, we will take you to learn more about these 4 cases! Energy-saving optimization across Qingdao Refining and Chemical Plant: This optimization is achieved through various advanced measures such as managing energy conservation using a systematic approach, adopting and implementing an \"incremental improvement\" strategy for energy management, continuously carrying out energy-saving renovation projects, actively investing in new energy technologies, promoting overall optimization by coordinating multiple facilities, and ensuring efficient use of water resources through comprehensive control throughout the process. As a result, the plant’s energy efficiency has ranked first in China’s crude oil processing industry for 12 consecutive years, bringing about significant economic, environmental, and social benefits. “During the 14th Five-Year Plan period, Qingdao Refining & Chemical Company explored potential for energy savings through continuous benchmarking analysis and technical innovation, implementing a total of 33 projects to improve energy efficiency, which resulted in annual energy savings of approximately 38,400 tons of standard coal. Through the implementation of \"gradual catch-up\" management, Qingdao Refining & Chemical has seen a gradual reduction in its energy consumption. The reuse rate of water reaches 99.3%, which is at the leading level in China’s refining industry. Approximately 3.5 million tons of rainwater, wastewater, and condensed water are reused each year, and the company has been awarded the title of National Water Efficiency Leader for four consecutive years. Qingdao Refining & Chemicals has managed to reduce its overall energy consumption in oil refining by 11.5% compared to the period at the start of operations, and its energy consumption per unit of output has decreased by 11.2% as well. The level of green, low-carbon sustainable development in this company has improved significantly; its energy efficiency indicators have ranked first in China’s crude oil processing industry for 12 consecutive years, serving as an excellent model for others to follow. Wanshan Petrochemical’s utilization of industrial waste heat: This project involves recovering the waste heat generated by units such as those used in benzene production within Wanshan Petrochemical’s manufacturing facilities, as well as some of the waste heat from circulating water. By employing efficient and clean heating technologies such as \"heat exchangers + heat pumps\", it supplies heating energy at 70/50 degrees Celsius to Beiran Group’s Fangshan Heating Company for winter use. The design of this project enables an annual available surplus heat of approximately 530,000 GJ, a reduction in energy consumption of 17,000 tons of standard coal per year, and a decrease in carbon emissions of 45,000 tons per year. The project of \"converting waste into treasure\" utilizes the waste heat from recycling devices for domestic heating, thereby reducing operational costs in the factory and saving energy. It provides a reliable heat source to help alleviate shortages of heating fuel in winter and improve living conditions. Comprehensive utilization of low-temperature heat from aromatics in Zhenhai Refining & Chemical Co.: This project makes use of low-temperature hot water as a medium; by employing appropriate high-efficiency heat exchangers, it extracts the low-temperature heat from various devices and delivers it to downstream users who require heat, thereby reducing the steam consumption of those devices and achieving significant energy savings. Once the project is put into operation, it will save 69,000 tons of standard coal in terms of energy consumption per year, and downstream users will also be able to save nearly 10 million yuan in energy costs. This project spans multiple production units both within and outside Zhenhai Refining & Chemical Co., breaking away from the previous limitation that energy savings and consumption reduction were confined to optimizations within individual units alone. It sets a precedent for the comprehensive utilization of energy within the petrochemical park, promotes the sharing of resources among its enterprises, enables heat exchange, and fosters a community of shared destiny based on cooperation, mutual benefit, and common success with the chemical companies in the park. After the project was implemented, Zhenhai Refining & Chemical’s aromatic unit also became Sinopec’s only unit to operate low-temperature heat processes for both extract and raffinate streams. The flow modification of Turbines No. 1 and No. 3 in Maoming Branch’s refining unit resulted in a reduction in the standard coal consumption for power generation in Unit No. 1 to 147.11 grams per kilowatt-hour. As a result of this modification, 25,221 tons of coal were saved annually, generating an additional economic benefit of 27.74 million yuan per year ； After the renovation of Unit 3, the standard coal consumption for power generation was reduced to 151.04 grams per kilowatt-hour; this resulted in annual coal savings of 9,360 tons, as well as annual economic benefits of 10.29 million yuan. For the back-pressure modification project of Turbine No. 1, the existing equipment and facilities of the original unit were made use of to the greatest extent possible; the outer cylinder of the original unit was retained, ensuring the reliability and cost-effectiveness of the heating operation after the modification. For the efficiency improvement upgrade of Turbine No. 3, the molding process of prefabricated diaphragms was adopted to achieve precise molding of the flow-stage diaphragms, ensuring important dimensional parameters such as the throat area and steam discharge angle, thereby achieving control over the precision of diaphragm molding. At the same time, the flow modification improved the regulation capability of low-pressure steam, which helped achieve a balance of low-pressure steam in the refining area and prevented steam from being vented.