Our Technologies

Integrated Gasification Combined Cycle Power Plant

Below is brief introduction to the IGCC Technology — An integrated gasification combined cycle (IGCC) is a technology that turns coal into gas—synthesis gas (syngas). It then removes impurities from the coal gas before it is combusted and attempts to turn any pollutants into re-usable byproducts. This results in lower emissions of sulfur dioxide, particulates, and mercury.

Excess heat from the primary combustion and generation is then passed to a steam cycle, similarly to a combined cycle gas turbine. This then also results in improved efficiency compared to conventional pulverized coal.

The Klean IGCC Power Plant Overview

IGCC is the cleanest, most efficient means of producing electricity from coal, petroleum residues and other low- or negative-value feedstock’s. The combined cycle system has two basic components. A high efficiency gas turbine, widely used in power generation today, burns the clean SynGas to produce electricity. Exhaust heat from the gas turbine is recovered to produce steam to power traditional high efficiency steam turbines.

The estimated cost of Klean’s 120 MW power plants including the syn-gas clean up systems and power islands will be approximately $2,300 per kW net power output sold to the grid with a net 95 MW would be exported to the grid. The projected capital expenditures are less than the expected for a large scale coal combustion based plants using the latest environmental technologies for emissions reduction. Klean estimates the requirement for 8 gasifiers which will process 1,100 tonnes of coal per day. The power plant will have a parasitic load of approximately 24 MW mostly due to the compression load to compress the syn-gas exiting the gasifier at 13 PSIG up to 400 PSIG, which is the required pressure for gas-turbines. The power plant is financed through a power purchase agreement from a large power wholesaler.

IGCC Power Plant Process

Learn how the IGCC process we use, which is supplied in part by our partners GE, can utilize a wide varieties of low grade coals to produce cleaner power, while reducing emissions & enabling carbon to be captured.