Patents Assigned to ERA GmbH
  • Process for the removal of pollutants from hot gases
    Patent number: 4783326
    Abstract: A process for the removal of pollutants from hot flue gas is disclosed. The gas is cooled and at specified temperatures various acids are condensed out. After a further cooling, heavy metals are removed. Precise control of the quantity of water in the flue gas results in a purification process that is highly efficient. By adjusting the content of free oxygen in the flue gas, the addition of oxidizing agents used to remove sulfur dioxide can be considerably reduced.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: November 8, 1988
    Assignee: ERA GmbH
    Inventor: Franz-Gerhard Srednicki