选择PAS2050规范作为基本计算依据，利用碳足迹技术对中国石化某炼化企业汽油及柴油生产阶段碳排放进行分析，温室气体核算时间范围为2018年全年。计算结果表明，该企业汽油生产阶段碳排放为0.256 3 t CO₂ e/t汽油；柴油生产阶段的碳排放为0.263 8 t CO₂ e/t柴油。通过对排放源的碳排放分析发现，燃料气、电及蒸汽为主要碳排放源，生产企业应对这3种排放源进行重点监控。通过对单元装置碳排放分析发现，加氢装置是主要碳排放装置，优化加氢装置氢气来源对实现石化产品生产阶段碳减排具有重要意义。

Based on PAS2050 standard,carbon footprint technology is utilized to analyze carbon emission in gasoline and diesel stages in a refining and chemical company of Sinopec Corp.The time boundary for greenhouse emission evaluation is limited in 2018.Calculation results indicate that the final carbon emission in gasoline production stage is 0.256 3 tCO₂e per ton of gasoline;that in diesel production stage is 0.263 8 tCO₂e per ton of diesel.Through carbon emission analysis on emission sources,it is found that fuel gas,electricity and steam are the main carbon emission sources,the company shall focus on monitoring these three emission sources.It is found through analysis on production units that several hydrogenation units are the main carbon emission units.It is of great significance to optimize hydrogen source for hydrogenation unit to achieve carbon emission reduction in the production stage of petrochemical products.