초록 ▼

A magnetohydrodynamic generator (30) is fired with a clean, medium BTU combustible gas produced in an oxygen atmosphere. The combustible gas is generated in an oxygen blown coal gasifier (10) and cleaned of sulfur compounds, nitrogen compounds, and particulate matter before being delivered to the bu

A magnetohydrodynamic generator (30) is fired with a clean, medium BTU combustible gas produced in an oxygen atmosphere. The combustible gas is generated in an oxygen blown coal gasifier (10) and cleaned of sulfur compounds, nitrogen compounds, and particulate matter before being delivered to the burner (32) of the MHD generator (30). An air separation plant (70) is provided to supply oxygen to both the MHD burner (32) and the coal gasifier (10). Nitrogen from the air separation plant (70) is preheated and utilized to dry the coal supplied to the gasifier (10). A vapor generator (40) is disposed downstream of the MHD generator (30) to receive and cool the hot gases exiting therefrom thereby generating steam.

대표청구항 ▼

An apparatus for generating power from the combustion of coal comprising: a. an oxygen-blown magnetohydrodynamic generator having a burner for producing a high temperature working gas and a generation channel for directly generating electric power from the high temperature working gas, the generatio

An apparatus for generating power from the combustion of coal comprising: a. an oxygen-blown magnetohydrodynamic generator having a burner for producing a high temperature working gas and a generation channel for directly generating electric power from the high temperature working gas, the generation channel connected to the burner so as to receive the high temperature working gas; b. an oxygen-blown gasifier for producing a combustible medium BTU gas to be combusted in the burner of said magnetohydrodynamic generator; c. means for supplying coal to said gasifier; d. means for supplying preheated compressed oxygen to said gasifier and to the burner of said magnetohydrodynamic generator; e. a gas cleaner disposed downstream with respect to gas flow of said coal gasifier for removing sulfur compounds, nitrogen compounds, and particulate matter including fly ash and unburned carbon from the combustible medium BTU gas produced in said gasifier; f. a first gas pass connected between said coal gasifier and said gas cleaner thereby providing a gas path for conveying the combustible medium BTU gas from said gasifier to said gas cleaner; g. a first transport means interconnected between said gas cleaner and said gasifier for conveying a portion of the particulate matter removed from the combustible medium BTU gas in said gas cleaner back to said gasifier for gasification of the unburned carbon contained therein; h. a second gas pass connected between said gas cleaner and the burner of said magnetohydrodynamic generator for conveying the clean combustible medium BTU gas to the burner of said magnetohydrodynamic generator for combustion therein; i. means operatively associated with said magnetohydrodynamic generator for injecting a seed material into the high temperature working gas produced in the burner of said magnetohydrodynamic generator as the high temperature working gas enters the generation channel of the magnetohydrodynamic generator, said seed material being readily ionized upon injection into the high temperature working gas so as to enhance the conductivity of the working gas passing through the generation channel of said magnetohydrodynamic generator; j. a vapor generator connected to the generation channel of said magnetohydrodynamic generator so as to receive the seeded high temperature working gas passing out of the generation channel, said vapor generator having heat transfer surface whereby heat is transferred from the high temperature working gas to a liquid to generate a vapor as a source of power; and k. a flue connected to said vapor generator for venting the working gas passing through said vapor generator to the atmosphere.