Experimental Study of Nitrogen Oxide Emissions in a Circulating Fluidized Bed

Liu, R. W.; Zhou, Qulan; Suo, Hui; Xu, Tongmo

doi:10.1007/978-3-642-02682-9_157

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result agreed with the observation by others who also indicated that the concentration of NOx decreased along the height of the furnace, while the concentration of N 2 O increased continuously. 16,42 Explanation to this phenomenon was that the NOx formation which was dominant mainly in the dense bed zone was destroyed in the upper freeboard zone where char was dominant. 5 On the other hand, the rate of reaction of the N 2 O formation is slow, but is still faster than that of N 2 O destruction; hence the concentration of N 2 O increases slowly in the upper freeboard zone.…”

Section: Nox and N2o Profiles In The Furnacementioning

confidence: 99%

Trends in the control of NOx and SOx combustion emissions: Implications to the design of fluidised bed combustion operations

Musademba

Jambwa

Kusaziwa

2015

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

This paper attempts to review the implications of the sulphur oxides (SOx), nitrogen oxides (NOx) and nitrous oxide (N 2 O) emissions to the design of fluidised bed combustion (FBC) operations. The review focuses on how the knowledge of SOx and NOx emissions trends can be applied to influence the design of FBC operations. The effects of the emission trends of these noxious gases on the design operations for FBC such as temperature control, nozzle designs, sorbent selection design, air supply and control designs were reviewed. The implications of SOx, N 2 O and NOx emissions on the design of FBC systems rest primarily on the need to design the operational conditions of the system. The design for the precise location of the fuel feeding ports, secondary air feeding ports, limestone feeding ports and a prescribed size and quantity of sorbents to feed into the system was found to be crucial for reduction of these emissions. The emissions also have an impact on the design of the distributor plate of the system; reduction of the emissions necessitates good fluidisation and well-regulated temperature within the system. The review therefore concludes that there is a close nexus between the design and operation of FBC systems with NOx, N 2 O and SOx emissions.

show abstract

Section: Nox and N2o Profiles In The Furnacementioning

confidence: 99%