Coke and hydrocarbon prodn. - combined with power generation in molten metal bath gasifier and hydrogen producer

摘要

The process consists of (1) coking coal, lignite, peat, etc., in a covered trough or ring trough filled with molten metal, salt, minerals or glass to a depth of 20-50 cm, the trough being provided with outlets for gas, coke and ash, together with an explosion flap, heat insulation and receiver for compressed gas with associated compressors, etc.; (2) generating hydrogen and/or CO2 in a covered ring furnace by a cyclic process, in which a heated metal oxide (e.g. Fe3O4 and Fe2O3) is alternately reduced with coal gas or CO, and oxidised by steam, the H2 and CO being produced in separate chambers through which the molten iron flows; and (3) reacting the rich gas from (1) and the H2 and/or CO2 from (2), opt. with other materials (e.g. N2), to form hydrocarbons and NH4 cpds., esp. (NH4)2CO3. The liberated heat, which is substantially more than from normal carbon combustion may be used to generate power in gas turbines or steam for use in steam turbines.