Abstract: In depth analysis of the current situation of China's petrochemical industry and the challenges it faces under the "dual carbon" goal, it is pointed out that green and low-carbon transformation is the necessary path to achieve high-quality development of the petrochemical industry. Through specific cases of China National Offshore Oil Corporation (CNOOC) refining and chemical enterprises, the application effects of low-temperature heat utilization, equipment energy efficiency improvement, terminal electrification, process carbon reduction, digitalization and other technologies were demonstrated. The importance of the whole process energy optimization diagnosis mechanism was emphasized, and strategies such as collaborative development of pollution reduction and carbon reduction, and park based operation were proposed, which can provide theoretical basis and practical reference for refining and chemical enterprises to achieve green and low-carbon transformation.

Key words: green and low-carbon, refining and chemical enterprise, "dual carbon"goal, low-temperature heat, circular economy