Trends in the control of NOx and SOx combustion emissions: Implications to the design of fluidised bed combustion operations.
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Date
2015-07
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Chinese Journal of Mechanical Engineering
Abstract
This paper attempts to review the implications of the sulphur oxides (SOx), nitrogen oxides (NOx) and nitrous
oxide (N2O) 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, N2O 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, N2O and SOx
emissions.
Description
Published Journal Article
Keywords
Fluidised bed combustion, NOx, N2O, SOx
Citation
Kuipa, P. 2015. Trends in the control of NOx and SOx combustion emissions: Implications to the design of fluidised bed combustion operations. Chinese Journal of Mechanical Engineering.