气候变化领域集成服务门户(CCPortal): Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China

CCPortal

DOI	10.1021/acsomega.4c00435
	Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China
	Wang, Lijuan; Lu, Yingxin; Chen, Guojun; Xue, Lianhua; Zhang, Zhongning; Wang, Shuan; Gao, Jian
发表日期	2024
ISSN	2470-1343
英文摘要	Geological bodies are important sources of greenhouse gas (GHG) emissions. Organic-rich oil shale in sedimentary basins is a good gas source rock, the GHG in which will be released into the atmosphere during crushing to affect climate change. Quantitative calculations of GHG emissions during oil shale crushing were carried out on oil shales from the Yaojie (YJ) and Fushun (FS) mining areas in China. Organic geochemistry, X-ray diffraction, and pore structure analysis experiments, as well as the relationship between storage time and GHG emissions, were analyzed to investigate the main controlling factors of GHG release in different types of oil shales. The results showed that the CH4 and CO2 released from the YJ oil shale were 0.002-0.145 mL/g and 0.011-0.054 mL/g, respectively; the CH4 and CO2 released from the FS oil shale were 0.0001-0.0008 mL/g and 0.002-0.045 mL/g, respectively. Residual CH4 release was closely related to total organic carbon (TOC) and maturity: the CH4 released from the organic-rich and mature YJ oil shale was much higher than that of the FS oil shale, which is relatively organic-lean and immature. The control factors of the released CO2 vary in different regions: CO2 released from the YJ oil shale was somewhat affected by the TOC, while that released from the FS oil shale was mainly controlled by carbonate minerals and their contributing pores. The results of pore structure and organic maceral analyses indicated that both organic and inorganic pores of the YJ oil shale are occupied by asphaltenes, forming a key gas preservation mechanism of residual CH4 and CO2 as solutes dissolved in asphaltenes. In addition, CO2 has a greater absorptive capacity than CH4 and is therefore more difficult to release during the same crushing time. As oil shale is stored for longer periods, residual CH4 will be preferentially released to the atmosphere, while residual CO2 will be released in large quantities during crushing.
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:001195953700001
来源期刊	ACS OMEGA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304140
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Wang, Lijuan,Lu, Yingxin,Chen, Guojun,et al. Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China[J],2024.
APA	Wang, Lijuan.,Lu, Yingxin.,Chen, Guojun.,Xue, Lianhua.,Zhang, Zhongning.,...&Gao, Jian.(2024).Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China.ACS OMEGA.
MLA	Wang, Lijuan,et al."Greenhouse Gas Emissions during Oil Shale Crushing and Its Main Controlling Factors: A Contrast Study of Oil Shale in Yaojie and Fushun Areas, China".ACS OMEGA (2024).