The demonstration plant will be built at a site in Texas, US, and will feature supercritical CO2 turbine supplied by Toshiba.
The demonstration plant will assess NET Power’s Allam Cycle technology, which uses CO2 as a working fluid to drive a combustion turbine and ultimately produces pipeline-quality CO2 which can be sequestered or used in various industrial processes, including enhanced oil recovery.
The Allam natural gas power generation system will produce no air emissions and completely capture of CO2 without requiring expensive, efficiency-reducing carbon capture equipment.
Exelon president and CEO Chris Crane said: "This technology is a potential game changer in reducing carbon emissions from power generation."
The $140m demonstration project comprises technology development, plant design and construction, and a full testing and operations program.
CB&I president and chief executive officer Philip Asherman said: "Our participation in NET Power further expands CB&I’s technology portfolio and will allow our customers the ability to meet today’s increasing energy demands while complying with tomorrow’s stringent environmental regulations."
Under the agreement, CB&I will provide engineering, procurement and construction services while 8 Rivers, the inventor of the Allam Cycle, will provide continued technology development and the intellectual property for the project.
Exelon will operate and maintain the plant, which is scheduled to be commissioned in 2016.
