NDLI: Investigation of two-stage air-blown and air-steam-blown entrained-flow coal gasification

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Investigation of two-stage air-blown and air-steam-blown entrained-flow coal gasification

Content Provider	Scilit
Author	Abaimov, N. A. Butakov, E. B. Burdukov, A. P. Ryzhkov, A. F.
Copyright Year	2017
Description	Journal: Journal of Physics: Conference Series The aim of the paper is to compare effect of coal and steam supply to the second stage of the entrained-flow gasifiers on their main operating parameters. Two two-stage gasifiers of SB RAS Institute of Thermophysics were used as experimental units. The 5 MW unit has air-coal feeding to first and second stages (air-blown gasification). The 1 MW unit has air-coal feeding to first stage and steam feeding to second stage (air-steam-blown gasification). Experimental studies of air-blown and air-steam-blown gasification with various stoichiometric coefficients, flow rates, temperatures and supply points of secondary media (air-coal and steam) are carried out. Experimental and calculated (thermodynamic and CFD) methods have established that: in the air-blown gasification unit the increase of stoichiometric coefficients (secondary coal flow rate reduction) reduces the syngas heating value and increases the carbon conversion rate; in the air-steam-blown gasification unit the increase of the steam supply nozzle immersion to the gasifier leads to increase of the syngas heating value, the carbon conversion rate and decrease of the syngas $H_{2}$/CO ratio.
Related Links	http://iopscience.iop.org/article/10.1088/1742-6596/899/9/092001/pdf
ISSN	17426588
e-ISSN	17426596
DOI	10.1088/1742-6596/899/9/092001
Journal	Journal of Physics: Conference Series
Issue Number	9
Volume Number	899
Language	English
Publisher	IOP Publishing
Publisher Date	2017-09-01
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics: Conference Series Energy and Fuel Technology Air Blown Coal Gasification Flow Rates Air Steam Blown
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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