The article discusses an innovative strategy for optimizing energy operations in industrial parks to reduce CO2 emissions and enhance energy efficiency. The proposed model integrates various renewable energy sources like wind, solar, and hydrogen with waste incineration and methanol synthesis, leveraging hydrogen storage and carbon capture. By introducing a tiered carbon trading mechanism and managing user-side flexible loads, the system aims to control carbon emissions while minimizing costs and maximizing economic performance. Comparative analyses across different scenarios demonstrate the considerable benefits of the integrated energy system, including increased net profits, reduced operating costs, and significant reductions in CO2 emissions and wind curtailment rates. The study emphasizes the importance of waste-to-energy systems, carbon capture, and methanol synthesis in fostering a low-carbon economy and achieving sustainable waste management.