Alstom Technology Limited

General Electric Technology Gmbh

Frank Klaus Ennenbach

Olaf Stallmann

Wuyin Wang

Ulrich Koss

Hartwig Wolf

Petar Aleksic

Jean-Marc Gilbert Amann

Mark Harvey Tothill

A method for removing NOfrom flue gas by SCR includes supplying a reagent for the SCR reaction of NOinto the flue gas, then contacting the flue gas with a catalyst. Supplying the reagent includes supplying a less than stoichiometric amount of reagent, and after contacting the flue gas with a catalyst a final NOremoval step is provided.

Method and system for NOremoval

A method of forming urea by integration of an ammonia production process with that of a urea production process, as well as a system for the method is disclosed. Also, an alternative method of forming urea by integration of a part of an ammonia production process with that of a urea production process, as well as a system for the alternative method.

Method of forming urea by integration of an ammonia production process in a urea production process and a system therefor

A rotating packed bed RPB that includes a first and second packed bed both arranged on the same rotatable shaft. A gas is directed via a gas inlet through the first packed bed in co-current flow with a liquid in a radially outward direction towards the outer radius of the packed bed. The liquid enters the first packed bed via a first liquid inlet. The gas exiting the first packed bed is directed to the second packed bed and forced through it in a radially inward direction in counter-current flow with a liquid, which enters through a second liquid inlet. The arrangement allows an operation of the rotating packed bed with less energy compared to RPBs of the prior art operating in counter-current flow only. The apparatus allows low-cost design and high design flexibility.

Rotating packed bed

Growing community of inventors

Dreieich, Germany

Frank Klaus Ennenbach