摘要
CO_(2)输送作为大规模碳捕集、利用与封存工程建设的中间环节,其首选方法是管道输送。CO_(2)管道输送经济性评价模型是评价其投资回报、优化管输参数的依据。通过对比分析CO_(2)管径计算公式,建立经济性评价模型,基于超临界CO_(2)管道工程案例,对管道直径进行经济评价。结果表明:超临界CO_(2)管道单位运输成本随管径的增大先下降后增加,对于输量为1×10^(6) t/a、长度为200 km的管道,其管径为240 mm时CO_(2)单位运输成本最低;Vandeginste管径模型的计算结果与理论最优管径相近,推荐在实际工程中应用该模型;公称直径为200 mm时所节约的管道费用远大于能耗成本的增量,年化费用最小;单位运输成本随着运输距离的增加而降低,200 km后趋于稳定。研究结果可为CO_(2)管道经济输送提供科学依据及决策参考。(图5,表7,参21)
For CO_(2) transportation,as an intermediate link in the construction of large-scale carbon capture,utilization and storage projects,pipeline transportation is the preferred.Therefore,the economic evaluation model of CO_(2) pipeline transportation is the basis for evaluating its return on investment and optimizing the parameters of pipeline transportation.By comparing and analyzing the calculation formula of CO_(2) pipeline diameter,an economic evaluation model was established and thereby,the economic evaluation of pipeline diameter was performed based on a case of supercritical CO_(2) pipeline engineering.The results show that the unit cost of supercritical CO_(2) pipeline transportation decreases first and then increases with the increase of the pipeline diameter.For the pipeline with a transport capacity of 1×10^(6) t/a and a length of 200 km,the unit transportation cost of CO_(2) is the lowest at the pipeline diameter of 240 mm.Since the calculation result of the Vandeginste pipeline diameter formula is close to the theoretical optimal pipeline diameter,the Vandeginste pipeline diameter formula is recommended for the calculation of the pipeline diameter in the actual projects.However,the pipeline cost saved at a nominal diameter of 200 mm is far greater than the increment of energy consumption,and thus the annual cost in this case is the minimum.In addition,the unit transportation cost decreases with the increase of transportation distance,and the unit cost trends to be stable when the distance is longer than 200 km.Therefore,the research results could provide scientific basis and reference for the decision-making concerning the economic pipeline transportation of CO_(2).(5 Figures,7 Tables,21 References)
作者
吕家兴
侯磊
王昕
王玉江
刘芳媛
LYU Jiaxing;HOU Lei;WANG Xin;WANG Yujiang;LIU Fangyuan(College of Mechanical and Transportation Engineering,China University of Petroleum(Beijing)//CNPC Key Laboratory ofOil&Gas Storage and Transportation;Engineering Technology Management Centre,SINOPEC Shengli Oilfield Branch)
出处
《油气储运》
CAS
北大核心
2022年第1期114-120,共7页
Oil & Gas Storage and Transportation
基金
国家重点研发计划项目“油气长输管道及储运设施检验评价与安全保障技术”,2016YFC0802100。
关键词
超临界CO_(2)
管道输送
管径计算
运输成本
经济评价
敏感性
supercritical CO_(2)
pipeline transportation
pipeline diameter calculation
transportation cost
economic evaluation
sensitivity
