摘要
磷化工企业是碳排放的重点领域,其绿色低碳发展对我国“双碳”战略的推进和实施具有重要意义。目前针对磷化工企业碳足迹核算还处于起步阶段,缺乏系统的研究和规范。本研究以贵州省某代表性磷化工企业为研究对象,对磷化工企业生产过程中的能源使用情况进行分析,并结合企业生产工艺特点,构建了磷化工企业的碳足迹核算模型。计算表明该企业2021年碳足迹为703377.26 tCO_(2),其中化石能源燃烧直接碳排放为463418.66 tCO_(2),占企业碳排放总量的65.88%;工业生产过程碳排放为239852.26 tCO_(2),占企业碳排放总量的34.10%;电力消耗间接碳排放为106.34 tCO_(2),占企业碳排放总量的0.02%。从车间来看,碳排放主要由磷石膏制酸联产水泥车间和动力车间产生,其中磷石膏制酸联产水泥车间的碳足迹为471476.6tCO_(2),占企业碳排放总量的67.03%,动力车间的碳足迹为151257.43 tCO_(2),占企业碳排放总量的21.50%。基于碳足迹分析结果,针对磷化工企业提出了系列减排措施。该研究可为磷化工企业的降碳减排、绿色低碳和可持续发展提供一定的理论支撑。
Phosphorus chemical enterprises are the key areas of carbon emissions,and their green and lowcarbon development is of great significance to the promotion and implementation of China’s“double carbon”strategy.Currently,carbon footprint accounting for phosphorus chemical firms is in its early stages,with a lack of systematic research and guidelines.This study used a representative phosphorus chemical enterprise in Guizhou Province as a research object,analyzing the energy used in the enterprise's production process,and building the carbon footprint accounting model of the enterprise in conjunction with the enterprise’s production process characteristics.The calculation showed that the carbon footprint of the enterprise in 2021 was 703377.26 tCO_(2),of which the direct carbon emission of fossil energy combustion was 463418.66 tCO_(2),accounting for 65.88%of the total carbon emission of the enterprise.The carbon emission of industrial production process was 239852.26 tCO_(2),accounting for 34.10%of the total carbon emission of enterprises.The indirect carbon emission of electricity consumption was 106.34 tCO_(2),accounting for 0.02%of the total carbon emission of enterprises.From the perspective of the workshop,carbon emissions were mainly generated by the phosphogypsum-based acid co-production cement workshop and the power workshop.The carbon footprint of the phosphogypsum-based acid co-production cement workshop was 471476.6 tCO_(2),accounting for 67.03%of the total carbon emissions of the enterprise.The carbon footprint of the power workshop was 151257.43 tCO_(2),accounting for 21.50%of the total carbon emissions of the enterprise.Based on the results of the carbon footprint analysis,a number of emission-reduction actions were offered for phosphorus chemical companies.This study can provide some theoretical support for carbon emission reduction,green low-carbon and sustainable development of phosphorus chemical enterprises.
作者
李贵东
王雪萌
安燕
刘海
田蒙奎
LI Guidong;WANG Xuemeng;AN Yan;LIU Hai;TIAN Mengkui(School of Chemistry and Chemical Engineering,Guizhou University,Guiyang city,Guizhou Province,550025,China;State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Associated Resources,Guiyang city,Guizhou Porvince,550016,China)
出处
《环境工程学报》
北大核心
2025年第4期988-997,共10页
Chinese Journal of Environmental Engineering
基金
国家自然科学基金资助项目(22162007)
贵州省科技计划资助项目(黔科合支撑[2021]480,黔科合支撑[2023]379)
瓮福(集团)有限责任公司技术开发资助项目(WH-220787(YF))。
关键词
碳达峰
碳中和
磷化工企业
绿色低碳
碳足迹
carbon peaking
carbon neutrality
phosphorus chemical company
green and low carbon
carbon footprint
