Moderate or Intense Low-Oxygen Dilution Oxy-combustion Characteristics   of Light Oil and Pulverized Coal in a Pilot-Scale Furnace

doi:10.1021/ef402240w

CORC > 北京大学 > 工学院

	Moderate or Intense Low-Oxygen Dilution Oxy-combustion Characteristics of Light Oil and Pulverized Coal in a Pilot-Scale Furnace
	Li, P. ; Wang, F. ; Tu, Y. ; Mei, Z. ; Zhang, J. ; Zheng, Y. ; Liu, H. ; Liu, Z. ; Mi, J. ; Zheng, C.
刊名	energy and fuels
	2014
关键词	COLORLESS DISTRIBUTED COMBUSTION HIGH-TEMPERATURE AIR NATURAL GAS FLAMES MILD COMBUSTION NOX-EMISSIONS THERMAL INPUT REACTION ZONE FUEL FLAMES BURNER TECHNOLOGY
DOI	10.1021/ef402240w
英文摘要	This study investigates by experiment the global characteristics of both moderate or intense low-oxygen dilution (MILD) oxy-combustion and air combustion of firing light oil and pulverized coal in a pilot-scale furnace. There are three burner configurations used, i.e., (I) central straight (primary) jet + swirl (secondary) jet, (II) central straight (primary) jet + two side symmetrical (secondary) jets, and (III) central straight (primary) jet + side asymmetrical jet. The furnace centerline temperature, species concentrations, and exhaust emissions are measured and compared for the MILD and conventional combustion cases. For light oil and pulverized coal, the MILD air combustion or oxy-combustion occurs with burner II or III, while the conventional combustion takes place when using burner I. For the light oil, the MILD oxy-combustion can be reached even using pure oxygen. As the MILD combustion is reached, a fairly uniform temperature distribution and low emissions of NO and CO are obtained. Note that burner III produces the largest internal recirculation of the flue gas, lowest peak temperature, and most uniform temperature, whereas the opposite occurs for burner I. Importantly, the MILD combustion is found to reduce the NO emission much more effectively in the oxy-combustion case than in the air combustion case. Moreover, the appearance of the MILD combustion of light oil and pulverized coal differs from the invisible MILD combustion of gaseous fuels. Dark sparks from burning oil droplets or char particles are present in the MILD combustion of light oil or pulverized coal. It is also revealed that the char burnout under the MILD combustion is weaker than that under the conventional combustion.; Energy & Fuels; Engineering, Chemical; SCI(E); EI; 3; ARTICLE; jcmi@coe.pku.edu.cn; 2; 1524-1535; 28
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154358]
专题	工学院
推荐引用方式 GB/T 7714	Li, P.,Wang, F.,Tu, Y.,et al. Moderate or Intense Low-Oxygen Dilution Oxy-combustion Characteristics of Light Oil and Pulverized Coal in a Pilot-Scale Furnace[J]. energy and fuels,2014.
APA	Li, P..,Wang, F..,Tu, Y..,Mei, Z..,Zhang, J..,...&Zheng, C..(2014).Moderate or Intense Low-Oxygen Dilution Oxy-combustion Characteristics of Light Oil and Pulverized Coal in a Pilot-Scale Furnace.energy and fuels.
MLA	Li, P.,et al."Moderate or Intense Low-Oxygen Dilution Oxy-combustion Characteristics of Light Oil and Pulverized Coal in a Pilot-Scale Furnace".energy and fuels (2014).