Emissions of NO and CO from counterflow combustion of CH4 under MILD and oxyfuel conditions

Kin-Pang Cheong, Pengfei Li, Feifei Wang and Jianchun Mi

Energy, 2017, vol. 124, issue C, 652-664

Abstract: This paper reports on the NO and CO emission characteristics of counterflow combustion of methane simulated under MILD or/and oxyfuel conditions. Simulations using CHEMKIN are conducted for various injection conditions of fuel and oxidizer. Note that the terms “oxyfuel”, “MILD-N2” and “MILD-CO2” combustion adopted hereafter represent the conventional oxy-combustion and those MILD combustions diluted by N2 and CO2, respectively. It is observed that the NO emission of MILD-CO2 combustion is ultra-low for all cases of investigation, even when increasing the combustion temperature up to 2000 K or adding more N2 (up to 20%) to either the fuel stream (to simulate nitrogen-containing fuels like biomass) or the oxidizer stream (to simulate the air-ingress). A higher temperature allowed under MILD-CO2 combustion suggests the improvement of energy efficiency for the MILD combustion technology. Moreover, the presence of steam in the oxidant reduces both NO and CO emissions of combustion for all cases.

Keywords: MILD combustion; Oxyfuel combustion; Counterflow combustion; Nitric oxide (NO); Carbon monoxide (CO) (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (17)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544217302578
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:124:y:2017:i:c:p:652-664

DOI: 10.1016/j.energy.2017.02.083

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().