Toshiba Ships Turbine for Texas Supercritical Demonstration Plant in Texas


By Editors of Power Engineering

Toshiba announced they have shipped a 25-MW gross electric turbine for a direct-fired supercritical oxy-combustion CO₂ power cycle generation system demonstration plant in Texas.

The plant, under development by Toshiba, NET Power CB&I and Exelon, hopes to validate the Allam Cycle, a new natural gas power system that operates at high efficiency and collects high-pressure CO₂.

Toshiba noted the company has been developing the turbine and combustor for the plant since 2012. The plant will begin operation in 2017. If successful, the companies will use the technology to construct a 250-MW natural gas plant.

The supercritical CO₂ power cycle system achieves the same level of generating efficiency as a combined-cycle power plant. It separates and collects CO₂ at high pressure, eliminating the need for separate carbon capture equipment or processes, and captures CO₂ without any increase in the cost of electricity. The plant uses supercritical CO₂ as a working fluid to generate low cost electricity while eliminating emissions of nitrogen oxides and other pollutants.

This supercritical development has no connection to another supercritical power plant under development in Texas. That project, spearheaded by the Gas Technology Institute, Southwest Research Institute and GE Global Research, just received an $80 million award from the U.S. Department of Energy

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