Study of the two-stage gasification process of pulverized coal at the hydrodynamic flow separation

All-Russian Conference with the School for Young Scientists “Thermophysics and Physical Hydrodynamics –2016”

Kuznetsov, V.^1 ; Chernetskiy, M.^2,3 ; Ryzhkov, A.^3

Siberian Federal University, 79 Svobodny, Krasnoyarsk

660041, Russia^1

Kutateladze Institute of Thermophysics, Novosibirsk

630090, Russia^2

Ural Federal University, 19 Mir Street, Yekaterinburg

620002, Russia^3

关键词: Counter current;    Gasification process;    Heat and mass transfer process;    Hydrodynamic flows;    Inclination angles;    Pulverized coals;    Two-stage gasifier;    Vertical plane;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/754/11/112007/pdf
DOI  :  10.1088/1742-6596/754/11/112007

来源: IOP

【 摘 要 】

The paper presents a numerical study of advanced two-stage gasifier with a combined countercurrent and concurrent flow pattern and dry fuel feed system EAGLE. The Kuznetsk coal was used as a fuel for the gasifier under study. We have conducted studies on the influence of the inclination angle of the upper burners in horizontal and vertical planes, and the amount of steam supplied, on heat and mass transfer processes in the chamber as well as on the composition of coal-derived gases. It is shown that the increase in the inclination angle of the upper burners in the horizontal plane allows intensifying the process of two-stage gasification and makes it possible decreasing the height of the chamber without sacrifice of the composition of the coal-derived gases.