Two-stage thermochemical conversion of solid fuel in a setup with steam ejection
V.K. Baev, A.N. Bazhaikin, D.V. Chusov, and V.V. Shumskii
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
E-mail: bazhan@itam.nsc.ru
Keywords: solid phase carbon, coal gasification, steam, steam ejector, mixing chamber with po-rous walls
Pages: 299–304
Abstract
The paper presents a set of tests with a setup using steam supply into ejector instead of compressed air. Experiments measured the gas analysis data ¾ volumetric concentrations O2, CO, CO2, CnHm, NOx, H2 at different proportions of air and steam. The data are compared with calculations for thermodynamic equilibrium compositions for the reacting mixture С+Н2О+air performed by “Terra” computer code including the case of air excess (a £ 1). The cal-culations were also compared with available data on gasification output at a high content of ballasting gas. It was demonstrated that in these operation modes, the steam was an inert dilution agent, which did not exclude the outcome of coal gas production with high Н2 /СО and СО/СО2 ratios corresponding to different modes of gasification.
DOI: 10.1134/S0869864318020154
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