Skip to main content

Leading the way to greener and smarter mobility, worldwide.

Our ambition is to accompany all transportation stakeholders in meeting tomorrow’s mobility challenges. We strive to provide them with the most efficient and digital mobility systems, while further improving the environmental friendliness of our solutions. 

Smart innovation for sustainable mobility

Follow us on

A comprehensive portfolio of mobility solutions

We offer a complete range of equipment and services, from high-speed trains, metros, trams and e-buses to integrated systems, customised services, infrastructure, signalling and digital mobility solutions.

Discover our solutions

Follow us on


Find the latest Alstom press releases and news, press kits, your regional press contacts and more!

Enter the newsroom

Follow us on

The one stop shop for all relevant information for investors and shareholders

Access our financial & share information, our financial calendar and results, regulated information, shareholders' meetings and investors' contacts & presentations.

See more

Follow us on

Join us

At Alstom, we value curious and innovative people who are passionate about working together to reinvent mobility, making it smarter and more sustainable.

Learn more

Follow us on

ALSTOM signs exclusive licence agreement for an innovative mercury oxidation technology

Press Contacts

Visit our media section and follow the link "Press contacts"

ALSTOM has signed an agreement with Vosteen Consulting of Germany to market and sell its innovative technology of bromine additives, for the removal of mercury from coal-fired boilers and other industrial processes. According to the terms of the agreement, ALSTOM has exclusive rights to market this technology to the power generation industry in the United States and Canada.

Available in KNXTM coal additives and systems sold exclusively by ALSTOM, this technology significantly enhances mercury oxidation in coal-fired boilers and has already been demonstrated at numerous utility plants throughout North America. Oxidized mercury is known to be easier to collect in downstream air pollution control equipment, including ESPs, FFs, DFGD and WFGD systems.

Recent tests have demonstrated the potential of the KNX coal additive to not only enhance mercury oxidation but, in some cases, even improve the inherent mercury removal of an existing boiler and downstream air pollution control system, without the use of activated carbon injection. On boilers that incorporate WFGD systems for SO2 removal, KNX technology may enhance total mercury capture, regardless of the coal being combusted. The KNX injection system is extremely simple and cost-effective to retrofit to any coal-fired boiler.

ALSTOM has extensive experience in mercury emission control and has designed and supplied a number of dedicated, mercury control systems that include activated carbon injection systems. Over the past 15 years, ALSTOM has retrofitted some 20 commercial units with activated carbon injection into a dedicated, polishing fabric filter. These systems, combined, have achieved over 1.5 million hours of demonstrated reliable operation.

Vosteen Consulting is based in Cologne, Germany and specializes in research and development of mercury removal from power generation and industrial processes. KNX is a trademark of ALSTOM Power Inc.

Should you have any media inquiries about this press release, do not hesitate to contact our team

Your press contacts