A model for tar-removal efficiency from biomass-produced gas impinging on a water surface

D. Khummongkol and C. Tangsathitkulchai

Energy, 1989, vol. 14, issue 3, 113-121

Abstract: A simple mathematical model has been developed for producer-gas impingement on a water surface. A correlation has been derived for the tar-removal efficiency with the following five dimensionless groups: the Reynolds number, HnL, HwL, DcL, and DnL. Here Hn is the nozzle height above the water surface, Hw the water level, Dc the diameter of impinger column, Dn the diameter of nozzle, and L the height of the impinger column. Experiments were then carried out on producer gas generated by the gasification of rice husk in a downdraft gasifier, with cleaning in a wet impinger. Three different impinger sizes with changeable nozzles were tested. With some modifications of the derived correlation, the tar-removal efficiency may be estimated from η = α[(25 + 80φ)][φ(71 + α)], where α = 10−5Re(Hn/L)(Dn/L)and φ = 10−10Re2(Hn/L) (Hw/L)(Dc/L)2.

Date: 1989
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:14:y:1989:i:3:p:113-121

DOI: 10.1016/0360-5442(89)90054-6

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