ITM Oxygen for Gasification

摘要

An Air Products-led team is developing a new air separationrntechnology - Ion Transport Membrane Oxygen - based onrnceramic membranes that selectively transport oxygen ionsrnwhen operated at high temperature. Under the influence of anrnoxygen partial-pressure driving force, the ITM Oxygenrnprocess achieves a high-purity, high-flux separation of oxygenrnfrom air. By integrating the energy-rich, vitiated, non-permeaternstream with a gas turbine system, the overall processrnco-produces high-purity oxygen, power, and steam if desired.rnAs a result, the technology is ideally suited for advancedrnenergy conversion processes such as IGCC that requirernoxygen and use heavy carbonaceous feedstocks (resid oils,rnbitumens, coke, coal), as well as for traditional industrialrnapplications for oxygen and distributed power.rnDuring Phases I and II of a three-phase development programrnwith the U.S. Department of Energy, the ITM Oxygen teamrnestablished the feasibility of the ceramic membrane approachrnand designed and built commercial-scale membrane modules.rnA prototype facility that will produce 5 tons-per-day ofrnoxygen will start up this year. Larger-scale test rigs arernplanned, with commercialization projected in the latter part ofrnthe decade.rnThis paper will present an overview and status of the ITMrnOxygen development effort, and the integration intorngasification and clean energy processes. Process integrationrnoptions will be discussed and contrasted. The economicrnbenefits compared to the best commercial air separation alternative will be highlighted.