Abstract: Based on the statistical analysis of carbon emission intensity and carbon emissions of different working fluids from more than 50 sets of catalytic cracking units in the past 20 years, it is shown that China's catalytic cracking units have achieved remarkable results in energy saving and consumption reduction, low-carbon and green production in recent years. The carbon emission characteristics of catalytic cracking unit are clarified. And from the aspects of feedstock optimization, catalyst selection, process operation adjustment, energy utilization efficiency improvement, carbon capture technology, etc., the carbon emission reduction plan for the catalytic cracking unit of refining enterprises is proposed to help achieve the "double carbon" goal, energy transformation and cleaner production.

Key words: catalytic cracking, carbon emissions, carbon emission intensity, energy conservation, economic benefit