摘要
为缓解目前CO2浓度升高导致的温室效应等环境问题,神华集团于2011年开启了每年10万吨的CCS(CO2的捕集与封存)项目,为防止封存的CO2逃逸到大气中,对封存区地表大气CO2浓度和CO2通量主要采取涡度相关系统进行监测。介绍了涡度相关技术的基础理论,分析了该技术应用在CCS项目中的初期监测结果,并对目前导致封存区地表CO2通量异常的原因进行了预测和分析。结果表明:导致封存区CO2通量异常的主要原因是CO2封存区缓冲罐的自然排放,并根据初步分析对后续的监测提出了合理的建议。
In order to alleviate the current environmental problems of the greenhouse effect caused by in-creased CO2 concentrations,Shenhua Group in 2011 started the annual 100000 tons of Carbon Capture andSequestration （CCS） project. To prevent CO2 from escaping into the atmosphere,this project applies an ed-dy covariance system to monitoring CO2 concentrations and fluxes of near the surface of the storage area.This paper first introduces the related technical theory of eddy eovariance, then analyzes the early-stagemonitoring results with the technology applied in the CCS project, predicts and analyzes the surface CO2flux anomalies in current storage area. The results show that the main reason of the CO2 flux anomalies instorage area is the buffer tank＇s natural emission. At last the paper puts forward some reasonable sugges-tions for the subsequent monitoring according to the preliminary analysis.
出处
《安全与环境工程》
CAS
2015年第5期73-78,共6页
Safety and Environmental Engineering
基金
国家自然科学基金项目(51404195)
国家科技支撑计划项目(2011BAC08B00)
