Alstom Technology Limited

General Electric Technology Gmbh

John Carl Buschmann

Lawrence Joseph Czarnecki

Frederic Zenon Kozak

Barath Baburao

Mou Jian

Alimustapha Tabikh

Matthew Reed Cage

Lars Filip Lundin

Michael Thomas Lambert

The present application provides a mobile selective catalyst reduction system for use at a remote location. The mobile selective catalyst reduction system may include a first trailer with an ammonia delivery system and a tempering air system mounted thereon in whole or in part and a second trailer with a selective catalyst reduction section mounted thereon in whole or in part. The ammonia delivery system, the tempering air system, and/or the selective catalyst reduction section are permanently mounted on the first trailer or the second trailer for use at the remote location.

Mobile selective catalyst reduction system

A catalytic reactor () is provided for purposes of effecting therewith the removal of nitrogen oxides from a process gas (F) that includes at least two catalyst bed segments (), each of which is provided with a closing device (). The catalytic reactor () is operative for causing said process gas (F) to flow through a first catalyst bed segment (). Said process gas (F) is at a first temperature at which the sulphur trioxide that is entrained in said hot process gas is at least partially precipitated out on to the catalytic material that said first catalyst bed segment () embodies. Periodically said closing device () is operated in order to thereby isolate said first bed segment () from the flow therethrough of said hot process gas (F). A regeneration system () is also provided that is operative for purposes of causing a regenerating gas to flow through the first bed segment (). In addition, a sulphur trioxide removal device () is provided, which is separate from said catalytic reactor (), and which is operative for purposes of effecting therewith the removal of the sulphur trioxide from said regenerating gas.

Method and a device for removing nitrogen oxides and sulphur trioxide from a process gas

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Knoxville, TN, United States of America

John Carl Buschmann