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CO2 Capture

Carbon Capture

Large-scale Carbon Capture, Use and Storage 

Air Products has designed and constructed a large-scale system to capture carbon dioxide (CO₂) from our two steam methane reformers located within the Valero Refinery in Port Arthur, Texas. The recovered and purified CO₂ is delivered by pipeline to Denbury Onshore for use in their enhanced oil recovery operations.

Described by the Department of Energy as a milestone in its Industrial Carbon Capture and Storage program, this unprecedented achievement, which uses an Air Products innovative technology, is the first-of-its-kind operating at such a large scale, and has not been accomplished anywhere else in the U.S.

Since 2014, our technology for carbon capture and sequestration at our Port Arthur facility has captured over five million metric tons of CO₂ that would have otherwise been emitted into the environment. 

CO2 capture from gasification

The currently favored technology for capturing CO₂ from gasification processes is to selectively separate H₂S and CO₂ from "shifted" syngas, usually in a physical solvent adsorption process. We have substantial operational experience with these technologies in the U.S. and globally, however, Air Products is also exploring an alternative CO₂ capture option that capitalizes on our years of experience in the design and operation of H₂ pressure swing adsorption (PSA) systems associated with our steam reformers. The novel PSA technology in development processes sour syngas, potentially removing the need for additional acid-gas removal units. This simplified process has the potential to offer faster throughput and lower capital expense. 

Oxyfuel CO₂ Capture and Purification

We are active in developing solutions to address key technical hurdles in CO₂ capture for power plants. Our solutions range from supply of oxygen for oxyfuel combustion to developing technologies in CO₂ purification and compression. Here are some of Air Products' oxyfuel CO₂ capture projects.


 Economic studies for retrofit and new build oxyfuel facilities, with Doosan Power Systems and the DTI Emerging Energy Technologies Programme


Demonstration of oxyfuel sour compression technology at Doosan Power Systems’ facility in Renfrew, Scotland, as part of the Oxycoal-UK Project


 Pilot of CO₂ purification system at a boiler simulation facility in Windsor, CT, in cooperation with DOE


 Pilot facility for fully integrated CO₂ capture and purification process at Vattenfall’s Schwarze Pumpe oxyfuel pilot plant

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