炼化行业复杂性与碳排放之间的关系
Relationship Between Complexity and Carbon Emissions in Refining and Chemical Industry
李承卓 1马丹竹 1牛皓 2刘广鑫 3石磊4
作者信息
- 1. 辽宁石油化工大学石油与天然气工程学院,辽宁抚顺 113000
- 2. 生态环境部环境工程评估中心,北京 100012
- 3. 浙江清华长三角研究院,浙江嘉兴 314000;南昌大学资源与环境学院,江西南昌 330031
- 4. 南昌大学资源与环境学院,江西南昌 330031
- 折叠
摘要
炼化行业的复杂性与单位原油加工量排放的二氧化碳量(简称单位碳排放量)存在密切关系,探究二者关系可为炼化行业实现"双碳"目标提供理论指导.以中国炼化行业为研究对象,构建炼化行业炼化工艺单元拓扑结构模型,计算单位碳排放量和复杂性指数,对其进行分类并分析了产品特征和碳排放特征.笔者进一步分析复杂性和碳排放关系,并挖掘二者背后的量化关系,采用情景分析法对3种减排路径进行潜力分析,提出相应减碳建议.研究结果表明,炼化行业单位碳排放量随复杂性指数呈现先增加后降低的趋势.基于情景分析探究了不同减排措施下的减排潜力,发现简单炼油厂采用绿电唯一供给方案降碳率可达80％;复杂炼油厂和一体化炼油厂则应以碳捕集、利用与封存(CCUS)技术和绿电供给为主,辅以绿氢替代灰氢的降碳方案.
Abstract
The complexity of the refining and chemical industry is closely related to carbon emissions per unit of crude processing volume(hereinafter referred to as unit carbon emissions),and for this reason,the investigation of their relationship can provide theoretical guidance for achieving"carbon peaking and carbon neutrality goals"in the refining and chemical industry.As a case study of China's refining and chemical industry,the paper constructs a topology structure model of process unit in the refining and chemical industry,calculates and classifies unit carbon emissions and complexity indexes,and analyzes product and carbon emission characteristics.Further,this paper analyzes the relationship between complexity and carbon emission,and explores the quantitative relationship behind the both.Finally,the scenario analysis is used to assess the potential of three emission reduction paths,and corresponding suggestions on carbon reduction are proposed.The results show that unit carbon emission in the refining and chemical industry tends to increase first and then decrease with the complexity index.The potential of emission reduction under different emission reduction measures is explored based on scenario analysis,and it is found that 80％carbon reduction can be achieved by adopting the only green electricity supply scheme in a simple refinery.Therefore,complex and integrated refineries shall focus on the carbon reduction scheme dominated by carbon capture,utilization and storage(CCUS)technology and green electricity supply,supplemented by green hydrogen rather than ash hydrogen.
关键词
炼化行业/碳排放/复杂性/碳中和/情景分析/节能减排Key words
refining and chemical industry/carbon emission/complexity/carbon neutrality/scenario analysis/energy conservation and emission reduction引用本文复制引用
基金项目
国家重点研发计划项目(2020YFE0201400)
国家自然基金青年科学基金项目(52000119)
出版年
2024
NETL
NSTL
万方数据