Abstract: The refining and petrochemical industry is a process industry based on fossil fuels as the main raw materials, which consumes a lot of energy and emits a lot of CO₂. Thus it is urgent to accelerate the development of multi-energy integration in order to support the green and low-carbon transformation of the industry with high efficiency. Herein, the idea of multi-energy integration with high quality development of petrochemical industry in China was proposed based on the characteristics of petrochemical process and new energies. Two integration modes were established, with one called energy integration, including electricity, heat and hydrogen, and the other named resource integration, including carbon, hydrogen and oxygen. The new power-thermal system, new hydrogen system and new production process system were investigated and constructed to provide guidance for the high-quality development of refining and petrochemical industry, the multi-disciplinary industrial integration and technological innovations, etc. in China. The case study of multi-energy integration shows that the coupling of new energies with refiners plays an important role in facilitating carbon reduction transitions in refining process. Therefore, the development and application of the corresponding engineering technologies should be accelerated to further to reduce costs, promote the substitution of green electricity and green hydrogen, and synergistically achieve the goal of the carbon emission reduction, pollution reduction and efficiency increase.

Key words: refining and petrochemical Industry, multi-energy integration, new energies, green and low-carbon transformation