Praxair Deutschland GmbH & Co. KG, a subsidiary of Praxair Inc, has signed an agreement with Vattenfall AB of Sweden to provide technology and engineering in the joint development of technology to reduce carbon dioxide emissions from coal-fired electricity generating power plants.

Vattenfall is one of Europe’s leading energy companies and the advanced power-generation project involves a conceptual study for a possible 500-megawatt combined heat and power plant in Germany that would incorporate Praxair's oxy-coal technology.
It is intended that the technology will enable the capture of more than 90% of the carbon dioxide generated by coal-fired boilers.

The project would require approximately 8,000 tpd of oxygen and Praxair will develop the conceptual design, cost and performance estimates for both the oxygen production facilities and the carbon dioxide processing unit.

The captured carbon dioxide would be transported by pipeline to a sequestration site or enhanced oil recovery field.

“Projects such as this are fundamental to advancing the technology and know-how necessary to reduce greenhouse gases,” said Chuck McConnell, Praxair’s Vice President for oxy-coal technology and gasification.

“Working with innovative partners around the world, Praxair is advancing carbon-capture technology to help reduce the environmental footprint of coal, one of the world’s most abundant fuel sources.”

The deal becomes Praxair’s third clean-coal project, with the company participating in demonstration projects in Jamestown, New York, and in El Bierzo, Spain. The company also has a multi-year agreement with Foster Wheeler North America Corp. to jointly pursue specific clean-coal demonstration projects.

Oxy-coal combustion involves the efficient combustion of coal in a mixture of oxygen and re-circulated flue gas. Air emissions are reduced by a factor of 10 compared to the best air-based, coal-burning technology currently available.

Vattenfall, a Swedish crown company, is Europe’s fifth-largest power company generating electricity, producing heat and supplying energy to several million customers in the Nordic countries and northern Europe.