缺乏地质封存条件地区开展CCUS项目集群化建设的可行性研究:以江西省为例

Feasibility study on cluster construction of CCUS projects in areas lacking geological storage conditions:a case study of Jiangxi Province

碳捕集、利用与封存(CCUS)技术是我国实现碳达峰和碳中和目标的关键技术。良好的源汇匹配条件是CCUS项目部署的重要先决条件。然而我国存在一些缺乏地质封存条件的地区,虽然区域内拥有较多工业排放源,但缺少近距离的潜在封存地,影响了企业的投资决策。CCUS项目的集群化建设可以通过共用CO_(2)运输和封存设备,降低项目的整体成本,集群化建设能否推动缺乏地质封存条件地区CCUS项目的部署,需要进一步研究。以江西省为例,选取南昌市和萍乡市的7个公开披露碳排放信息的企业,分别开展年捕集量为100万t的碳捕集项目,通过管网优化并选取江汉盆地为潜在封存地,建立成本分析模型并计算单位减排成本。结果显示,虽然集群项目的运输距离长达513 km,但最终的CO_(2)减排成本仅为473.04元/t,而且还存在进一步下降的可能。在缺乏地质封存条件的地区开展CCUS项目的集群化建设,可以成为利用CCUS技术助力碳中和的一个重要方式。

Carbon capture,utilization and storage(CCUS)is a key technology for China to peak carbon emissions and achieve carbon neutrality.A good source-sink matching condition is an important prerequisite for CCUS project deployment.Certain areas in China that have a lot of industrial emission sources without suitable storage sites,long transportation distance will leads to high cost and affects the investment decisions.The cluster construction of CCUS projects can greatly reduce the cost by sharing transport and storage equipment.Further research is needed to evaluate whether cluster construction could promote CCUS development in such areas.This article selected 7 carbon disclosure enterprises in Jiangxi as research targets with proper pipeline layout,to deploy 1 million t/a carbon capture project in each enterprise.Jianghan Basin was selected as the storage site.The results show that,even the transportation distance is as long as 513 km,the carbon dioxide reduction cost for 1 t CO_(2) is only 473.04 yuan,and there are further cost reduction potentials.For areas lacking geological storage conditions,cluster construction of CCUS projects can become an important way to help achieve carbon neutrality in the future.