Monitoring the impact of fugitive CO2 emissions on wheat growth in CCS-EOR areas using satellite and field data. (10th May 2017)

• Record Type: Journal Article
• Authors: Yang, Yongjun; Li, Yue; Zhang, Shaoliang; Chen, Fu; Hou, Huping; Ma, Jing
• Is Part Of: Journal of cleaner production. Volume 151(2017)
• Page Start: 34
• Page End: 42
• Publication Date: 2017-05-10
• Subjects: CCS-EOR -- Ecological monitoring -- Fugitive CO2 emissions -- NDVI -- Wheat -- Geostatistical analysis; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2017.03.058
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: In-situ monitoring of the environmental impact is essential for the verification of clean operation of carbon capture and storage (CCS) projects. We conducted an empirical study based on remotely sensed data and field observations from an enhanced oil recovery (EOR) site in China. Geostatistical analysis and general linear model regression were performed to detect the impact of fugitive CO2 emission from oil buffer tanks. Results show that the emitted CO2 resulted in CO2 enrichment about 25–100 m away from the buffer tanks. The spatial pattern and semivariogram parameters of normalized differential vegetation index (NDVI) in the CCS core operating area had not been altered significantly. The CO2 concentration is not a statistically significant explanatory factor for the variation of wheat growth in the present CCS-EOR site that located in Gaoqing County in the east of China. The impact of fugitive CO2 emission on wheat growth appears limited because of the instability and rapid diffusion of emitted CO2 . However, we emphasize that these results were extracted from the in-situ monitoring that characterized by macro-level and short term. Long-term biology-based study at a micro-level is imperative for further understanding and determining the environmental impact of fugitive CO2 emission. Moreover, considering the incidental CO2 breakthrough and the unknown impact of emitted gas, including CO2 and hydrocarbons, on the quality of wheat plant and grain, long-time field monitoring, and improvement of production equipment and technique are essential to ensure the clean production of CCS-EOR. Highlights: Fugitive CO2 emissions from EOR oil buffer tanks and their impacts were investigated. Emitted CO2 did not alter the spatial pattern and semivariogram parameters of NDVI in the study area. Soil fertility and water are significant factors explaining the variation of wheat growth in the study area. The fugitive CO2 emission from oil tanks is featured by instability and rapid diffusion. We propose suggestions for ensuring the clean operation of CCS-EOR.