Petroleum Refinery Engineering ›› 2025, Vol. 55 ›› Issue (2): 52-55.

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Research on Carbon Footprint Evaluation Method for Hydrocracking Unit Products

Tian Tao   

  1. SINOPEC Engineering (Group) Co., Ltd.
  • Online:2025-02-15 Published:2025-02-25

加氢裂化装置产品碳足迹评价方法研究

田涛   

  1. 中石化炼化工程（集团）股份有限公司
  • 作者简介:田涛，正高级工程师，硕士研究生，从事石油石化行业能量系统优化、绿色低碳、碳足迹相关研究工作。E-mail: tiantao.sem@sinopec.com
  • 基金资助:
    中国石化科技开发项目（320054）

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Abstract:

Based on the energy evolution and chemical hydrogen consumption of product materials of hydrocracking units, a carbon footprint evaluation method was proposed, which included building process flow, establishing emission source inventory, analyzing material balance, allocating carbon emissions, and calculating carbon footprint. The carbon footprint of products was calculated using a 1.8 Mt/a hydrocracking unit as a case. Dry gas had the highest carbon footprint at 1,124.370 kg/t, mainly due to its higher chemical hydrogen consumption compared to feedstock. Jet fuel and diesel had lower carbon footprints at 185.109 kg/t and 226.584 kg/t, respectively. Meanwhile, the carbon emissions calculated from the product carbon footprint data obtained by this method had good consistency with the emission source inventory of the unit.

Key words: hydrocracking unit, carbon footprint of a product, evaluation method, emission source inventory, chemical hydrogen consumption

摘要：

依据加氢裂化装置的产品物料在生产过程中的能量演化和化学氢耗进行碳足迹评价，提出了以搭建工艺流程、建立排放源清单、分析物料平衡、分配碳排放和碳足迹计算为过程的评价方法。以某1.8 Mt/a加氢裂化装置为案例，计算产品碳足迹，其中干气碳足迹最高，为1,124.370 kg/t，原因是干气比原料的化学耗氢高；喷气燃料和柴油碳足迹较低，分别为185.109 kg/t和226.584 kg/t；同时，由此方法得到的产品碳足迹数据计算的碳排放量与装置的排放源清单具有较好的一致性。

关键词: 加氢裂化, 产品碳足迹, 评价方法, 排放源清单, 化学耗氢