February 27, 2008 – nGimat has been awarded a Small Business Innovation Research (SBIR) Phase I from the U.S. Environmental Protection Agency (EPA) to develop new nanomaterials to cleanup sulfur and ammonia from hot coal gas during the integrated gasification combined cycle process. The six-month award is for about $ 70,000.
In the new, state-of-the-art IGCC (integrated gasification combined cycle) technique, the hot (900 – 15000C) syngas generated from coal is efficiently used for powering both steam and gas turbines. Federal regulation dictates the generated syngas be free of sulfur. To desulfurize the syngas, it has to be cooled to 5000C and reheated again to continue the IGCC process cycle, which is energy inefficient. Currently, the zinc oxide sorbents used in the purification of sulfur and ammonia has a working temperature of < 6000C. “nGimat can now produce nanomaterials with large surface area ( 20-100m2/g) and high catalytic activity to remove sulfur and ammonia at high temperatures” says Andrew T. Hunt, CEO of nGimat. “The nanomaterials developed by nGimat via its proprietary NanoSpraySM Combustion technique produces stable nanoparticles with excellent surface area retention at elevated temperatures.” These new nanomaterials to be used in the hot coal gas cleanup will, therefore, not require lowering the temperature to < 6000C, thus dramatically improving the energy efficiency of the IGCC cycle.
In Phase II nGimat will be building a prototype hot coal gas desulfurization and ammonia removal unit using these new nanomaterials. This unit will be designed to operate at the elevated and efficient IGCC temperatures.
Through its core technology of NanoSpraySM Combustion Processing, nGimat is a cost-effective manufacturer and innovator of nanoEngineered MaterialsSM in the following areas: nanopowders, thin films and devices. The Company currently has a portfolio of 45 U.S. patents, 71 non-U.S. patents, and is processing over 70 patent applications.