气候变化领域集成服务门户(CCPortal): Demonstration of 0.1 MWth pilot-scale pressurized oxy-fuel combustion for unpurified natural gas without CO2 dilution

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DOI	10.1016/j.energy.2021.120021
	Demonstration of 0.1 MWth pilot-scale pressurized oxy-fuel combustion for unpurified natural gas without CO2 dilution
	Kim D.; Yang W.; Huh K.Y.; Lee Y.
发表日期	2021
ISSN	3605442
卷号	223
英文摘要	The pressurized oxy-fuel combustion system is renowned for its compatibility with carbon capture and storage technologies. This study aims to investigate the characteristics and potential of the pressurized oxy-fuel combustion system using unpurified natural gas and pure oxygen without CO2 dilution to decrease the cost of the purification process and the penalty of plant efficiency. The pilot-scale pressurized oxy-fuel combustion system was successfully demonstrated to study the characteristics of combustion, heat transfer, and NOx emission. For a given heat input, the mean temperature decreased, despite an increase in the adiabatic flame temperature due to pressurization. The heat recovery rate of the coolant in all the tested cases was approximately 84–86%. The radiative heat transfer was enhanced by the flue gas that was mainly composed of H2O and CO2 at high pressures. The NOx concentration decreased with the reduction in mean temperature, which suppressed the formation of thermal NO. The proportion of NO2 in NOx was approximately 25–28% at a pressure of 10 bar with respect to various N2 fractions. With respect to the high pressure and heat input, the NOx concentration of the lower momentum burner was decreased via the reduction of hot-spots and peak temperature. © 2021 Elsevier Ltd
英文关键词	Heat transfer; Methane; NOx; Oxy-flame; Pressurized combustion
scopus关键词	Adiabatic flame temperature; Air purification; Carbon capture; Carbon dioxide; Emission control; Fuel storage; Fuel systems; Heat transfer; Natural gas; Natural gasoline plants; Nitrogen oxides; Waste heat; Capture and storage technologies; High pressure; Mean temperature; Oxyfuel combustion; Peak temperatures; Plant efficiency; Purification process; Radiative heat transfer; Gas fuel purification; carbon dioxide; carbon sequestration; concentration (composition); detection method; efficiency measurement; natural gas; purification; temperature effect
来源期刊	Energy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177188
作者单位	Department of Mechanical Engineering, Pohang University of Science and Technology, Nam-gu, Cheongam-ro, 77, Pohang-si, Gyeongsangbuk-do, South Korea; Clean Energy R&D Department, Korea Institute of Industrial Technology, Seobuk-gu, Ipjang-myeon, Yangdaegiro-gil, 89, Cheonan-si, Chungcheongnam-do, South Korea
推荐引用方式 GB/T 7714	Kim D.,Yang W.,Huh K.Y.,et al. Demonstration of 0.1 MWth pilot-scale pressurized oxy-fuel combustion for unpurified natural gas without CO2 dilution[J],2021,223.
APA	Kim D.,Yang W.,Huh K.Y.,&Lee Y..(2021).Demonstration of 0.1 MWth pilot-scale pressurized oxy-fuel combustion for unpurified natural gas without CO2 dilution.Energy,223.
MLA	Kim D.,et al."Demonstration of 0.1 MWth pilot-scale pressurized oxy-fuel combustion for unpurified natural gas without CO2 dilution".Energy 223(2021).