Ceramic and Coal: ITM Oxygen for Power Generation with Reduced CO_2-Emissions, Detailed Engineering Study Results

摘要

In partnership with the U.S. Department of Energy, an Air Products-led team isdeveloping a new air separation technology-Ion Transport Membrane Oxygen-based onceramic membranes that selectively transport oxygen ions when operated at high temperature.Under the influence of an oxygen partial-pressure driving force, the electrochemical ITMOxygen process achieves a high-purity, high-flux separation of oxygen from air. This hightemperature process lends itself to integration with advanced power generation processes thatrequire oxygen feedstock, such as Oxy-Coal Combustion and IGCC, as well as traditionalindustrial applications for oxygen and distributed power.The team has successfully demonstrated expected performance and operability ofcommercial-scale modules in a prototype facility that produces up to 5 tons-per-day (TPD) ofoxygen. Next phase demonstration unit is in construction, and operation is planned in 2013.This Intermediate Scale Test Unit (ISTU) is designed to produce up to 100 TPD of oxygenintegrated with turbo-machinery and co-production of power. Data from the 100 TPD unit willprovide the design basis for a much larger plant that could produce 2000 TPD. In parallel,work has also begun to expand ceramic fabrication capacity to support these demonstrationstoward commercialization. Previous studies have reported significant capital and operatingcost reductions afforded by the ITM Oxygen technology toward traditional gasification, IGCC,and other energy-intensive applications.In this presentation, we will report the results of detailed engineering and economicstudy of processes toward reduced CO2 emissions from power generation cycles. Anoverview and update of the ITM Oxygen development effort will also be presented, includingpilot-scale testing results of commercial-scale ceramic modules, next-phase scale-up designs,and ceramic manufacturing expansion work. A commercialization timeline will be discussed.