Abstract: As the largest energy consumer and CO₂ emitter in the world, China’s industrial CO₂ emission has reached to 85.3% of the country’s total CO₂ emission amount. Cities have become the critical area and strategic direction for industrial CO₂ reduction. Through literature review and data calculation, we calculated the total amount of industrial CO₂ emission and analyzed the driving factors for two typical industrial cities in Liaoning Province, Shenyang and Dalian, from 2010 to 2020, using IPCC inventory method. Multi-regional input-output model was used to explore embodied CO₂ flows between Shenyang and Dalian. Our objectives were to clarify the current situation of industrial CO₂ emission of the two cities, aiming to provide some reference information about industrial CO₂ reduction and cooperation for other Liaoning’s cities in the future. The results showed that: (1) During 2010-2020, industrial CO₂ emission of Dalian increased by 572.46×10⁴ t with a 3.77% average annual growth rate, while industrial CO₂ emissions of Shenyang decreased by 14.67×10⁴ t with an average annual growth rate of -0.1%. Energy consumption was mainly concentrated in raw coal and electricity. (2) Energy intensity exhibited an inhibiting effect on CO₂ emission for Shenyang and Dalian, being -50.41% and -20.51%, respectively. On the contrary, energy structure and output scale had a motivating effect, being 1.81% and 47.79% for Shenyang and 1.42% and 78.07% for Dalian, respectively. (3) Net transfer amount of embodied CO₂ emissions through industrial chains from Shenyang to Dalian was 63.43×10⁴ t. Embodied CO₂ flows of electricity, heat production and supply industry (88.89×10⁴ t), coal mining industry (26.97×10⁴ t) from Shenyang to Dalian exceeded those of electricity, heat production and supply industry (52.49×10⁴ t), and chemical industry (9.09×10⁴ t) from Dalian to Shenyang.

Key words: industrial energy related carbon emission, driving force, embodied carbon, multi-regional input-output model, industrial city