Clean Power Cycles

Supercritical CO2 cycles, hydrogen, syngas turbines

Clean power generation systems of tomorrow should be able to generate electricity at scale, at the lowest possible cost, and with  low carbon footprints so as to provide clean baseload support for the grid, renewables and industrial systems. Modular architectures taking advantage of technologies such as H2 turbines and supercritical CO2 power-cycles can scale the clean power infrastructure in a seamless manner. Integrated to the larger net negative gasification complexes, it allows  clean power generation subsystems to draw upon the common gasification infrastructure Various options that are available based on technology maturity, future scale requirements, economics of operation, CO2 emissions, and carbon capture considerations include-

  • Integrated Gasification Gas Turbine Combined Cycle Process (IGCC)

    IGCC technology uses a high-pressure gasifier to turn coal and other carbon-based fuels to synthesis gas or syngas. IGCC can meet stringent air emission standards because the emission forming impurities like sulphur and particulate matters are eliminated from syngas.

IGCC is significant in many ways-

▪ It helps in minimizing the CO2 emission and is more environment friendly.
▪ Net efficiency of an IGCC plant is 40%, and the resulting CO2 from the gas turbine plant can be used for EOR.

  • Super critical CO2 cycle

    This is an effective way of converting fossil fuels into mechanical power while capturing the CO2 thus generated, and water. In this process, the gas turbine is effectively used to convert fuel to power. The supercritical CO2 is a more effective turbine working fluid than air or steam. Supercritical CO2 Cycle is an emission free syngas fired power plant which uses syngas as the fuel, and pure oxygen. Nitrogen Oxide emissions are eliminated, and some of eliminated CO2 is re-circulated into the system to control the flame temperature in the combustion chamber. The excess CO2 may be transferred for CO2 capture and sequestration.

Clean-Power-Cycle-1_Supercritical-CO2

  • Hydrogen fuelled Gas Turbine

    As Manufacturers worldwide are adopting EU’s 2050 goal of a climate neutral economy, power generation is experiencing major transformation. Fossil fuels are being increasingly replaced by renewable energy sources. However, the intermittent nature of renewables limits their use for base load power generation.

    H2 can play an important role in the energy mix. Coal gasification from H2 rich gas turbines can deliver reliable and clean power with minimal CO2 emissions. H2 can be used as a fuel in gas turbines and CCGTs.

Most existing gas turbine designs can handle an H2 share of 3-5 % and some can handle shares of 30% or higher. By 2030, manufacturers will be able to provide standard turbines that can run entirely on H2.

Dastur Energy can determine the best possible technology solution for a client, after independent and unbiased techno-economic analysis.

Technology Pillars