Abstract: Improving energy efficiency and reducing CO₂  emission are the keys to promote the high-quality development of petrochemical industry. Crude-to-chemical has been highly valued in the transformation of refining and chemical structure, which has promoted revolutionary. Crude cracking pyrolysis process (CCPP) is a crude-to-chemical technology. Based on the difference of catalytic cracking reaction characteristics between light and heavy fractions in crude oil, a multi-zone coupling reaction process and a specialized catalyst for CCPP were developed, and the crude oil pretreatment column and maximum catalytic propylene (MCP) unit were reformed. Industrial trial of CCPP technology was carried out in Yangzhou Petrochemical Company. The results showed that the chemical yield of crude oil from Jiangsu oilfield processed by CCPP technology was as high as 50.99%, the production cost of ethylene/propylene could be reduced by 46.4%, and the CO₂ emission could be reduced by 30.7%.

Key words: crude oil, deepcatalytic cracking, chemicals, ethylene, propylene