Cost-Effective Air Separation Systems Email Page
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Performer: TDA Research Inc.
Schematic of sorbent circulation where the air<br/>separation unit provides oxygen for a pulverized<br/>coal-fired power plant.
Schematic of sorbent circulation where the air
separation unit provides oxygen for a pulverized
coal-fired power plant.
Website: TDA Research Inc.
Award Number: FE0024060
Project Duration: 10/01/2014 – 09/30/2016
Total Award Value: $620,352
DOE Share: $496,288
Performer Share: $124,064
Technology Area: Gasification Systems
Key Technology: Air Separation
Location: Wheat Ridge, Colorado

Project Description

TDA Research Inc. (TDA), with support from the University of California, Irvine, will develop a new chemical absorbent-based air separation process that can deliver low-cost oxygen to various advanced power generation systems, including oxygen-fired pulverized coal boilers and integrated gasification combined cycle (IGCC) power plants. Specific objectives of the proposed work are to increase the technical maturity and commercial viability of the new oxygen separation technology by (1) demonstrating continuous oxygen generation in a continuous circulating bed system, and (2) carrying out a high-fidelity system design and techno-economic analysis. In two previous DOE projects (FG02-05ER84216 and FG02-07ER84677), TDA demonstrated the efficacy of the new air separation concept integrated with an IGCC plant and an oxy-combustion process.

Project Benefits

The TDA’s new chemical absorbent-based air separation process can deliver low-cost oxygen to various advanced power generation systems. The new absorbent operates at high temperature and hence eliminates the thermodynamic inefficiencies inherent in conventional cryogenic air separation plants. TDA’s sorbent selectively removes oxygen (not nitrogen), which allows the effective utilization of the large amounts of energy in the high-pressure oxygen-depleted stream. As a result, the new air separation system is very efficient and delivers a low-cost oxygen product. Using DOE evaluation methodology, TDA estimates the cost of oxygen at $17/ton for the new air separation system when it is integrated with an IGCC plant, well below the $32/ton oxygen cost of the large-scale cryogenic separation units, and below the DOE/NETL’s target of less than $20/ton for IGCC plants. With successful completion of this R&D effort, the technology will be ready for a pilot-scale demonstration and the technology readiness level (TRL) maturation will be elevated from its current TRL 3 to TRL 5.

Contact Information

Federal Project Manager Darryl Shockley: darryl.shockley@netl.doe.gov
Technology Manager K David Lyons: k.lyons@netl.doe.gov
Principal Investigator Gokhan Alptekin: galptekin@tda.com

 

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