Patent ID: 9187697
Filing Date: 2015-11-17
Classification: C10B,C10G,C10L,F23K

Abstract:
1. A coal or carbonaceous material upgrading process for power station use, the process comprising the steps of: (a) comminuting the coal or carbonaceous material to a comminuted material; (b) pre-treating the comminuted material in a first reactor with single frequency pulsed microwave energy and vacuum to reduce its water and oxygen content; the pre-treating stage being carried out at a temperature of up to 180° C.; (c) transferring the pre-treated comminuted material to a second reactor; (d) treating the pre-treated comminuted material in the second reactor with single frequency pulsed microwave energy under vacuum to produce volatile organic materials; the treatment stage being carried out at a temperature of over 180° C. and up to 350° C.; (e) transferring the treated material from the second reactor to a third reactor; (f) pyrolyzing the treated material in the third reactor with single frequency pulsed microwave energy and vacuum to produce a hot gas and a solid carbon residue; the pyrolyzing stage being carried out at a temperature of over 350° C. and up to 720° C.; (g) separating the solid carbon residue from the hot gas; (h) condensing the volatile organic materials and hot gas to produce a liquid hydrocarbon product and a gas product; and (i) feeding the solid material and the gas product to a power station to produce electricity therefrom.