Coal gasifier supplying MHD-steam power plant

摘要

An atmospheric pressure coal gasifier is combined with a MHD generator and a vapor generator to provide an entirely coal-fueled power generating system. The combustible low BTU gas formed in the gasifier is passed through a gas cleaner wherein particulate atter, gaseous sulfur compounds, and char are removed to produce a clean combustible low BTU gas. A first portion of the clean combustible low BTU gas and the char are passed to the burner of the MHD generator as a source of fuel. A second portion of the clean combustible low BTU gas is passed to a direct-fired air heater as a source of fuel for preheating the combustion air supplied to the burner of the MHD generator.