초록 ▼

Direct coal-fired gas turbine systems and methods for their operation are provided by this invention. The gas turbine system includes a primary zone for burning coal in the presence of compressed air to produce hot combustion gases and debris, such as molten slag. The turbine system further includes

Direct coal-fired gas turbine systems and methods for their operation are provided by this invention. The gas turbine system includes a primary zone for burning coal in the presence of compressed air to produce hot combustion gases and debris, such as molten slag. The turbine system further includes a secondary combustion zone for the lean combustion of the hot combustion gases. The operation of the system is improved by the addition of a cyclone separator for removing debris from the hot combustion gases. The cyclone separator is disposed between the primary and secondary combustion zones and is in pressurized communication with these zones. In a novel aspect of the invention, the cyclone separator includes an integrally disposed impact separator for at least separating a portion of the molten slag from the hot combustion gases.

대표청구항 ▼

In a direct coal-fired gas turbine system of the type having a primary combustion zone for burning coal in the presence of compressed air to product hot combustion gases and debris, such as molten slag, and a secondary combustion zone for the lean combustion of said hot combustion gases, said second

In a direct coal-fired gas turbine system of the type having a primary combustion zone for burning coal in the presence of compressed air to product hot combustion gases and debris, such as molten slag, and a secondary combustion zone for the lean combustion of said hot combustion gases, said secondary combustion zone coupled to a turbine for generating electric power, the improvement comprising: cyclone separation means for removing said debris from said hot combustion gases, said cyclone separation means disposed between said primary and secondary combustion zones and in pressurized communication therewith, said cyclone separation means comprising an integrally disposed impact separator disposed on an interior wall of said cyclone separator means for at least separating a portion of said molten slag from said hot combustion gases.