Patents by Inventor Florian Nassenstein

Florian Nassenstein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and plant for denitrifying bypass gases in a multi-stage system of mixing chambers in a plant for producing cement clinker
    Publication number: 20190154335
    Abstract: A method and a corresponding plant for denitrifying bypass exhaust gases in a cement clinker production plant. Raw meal is sintered in a rotary kiln and deacidified in a calciner. A rotary kiln inlet chamber is connected to the calciner directly or by a riser duct. Bypass exhaust gas is drawn off near the inlet chamber. This exhaust gas is guided into a first mixing chamber, in which the exhaust gas is cooled to between 800 and 950° C., then the exhaust gas is guided through a reaction pipeline segment, wherein the dwell time is between 0.5 and 3 seconds and ammonia, aqueous ammonia solution, or ammonia-releasing substances are injected for denitrification. Then the exhaust gas is guided into a second mixing chamber, in which the exhaust gas is cooled to between 150 to 250° C. Then the exhaust gas is guided to a filter for dust removal.
    Type: Application
    Filed: January 25, 2019
    Publication date: May 23, 2019
    Inventors: Heiko Schuermann, Florian Nassenstein, Andreas Hand, Rolf Gussmann
  • Method and plant for denitrifying bypass gases in a multi-stage system of mixing chambers in a plant for producing cement clinker
    Patent number: 10260809
    Abstract: A method and a corresponding plant for denitrifying bypass exhaust gases in a cement clinker production plant. Raw meal is sintered in a rotary kiln and deacidified in a calciner. A rotary kiln inlet chamber is connected to the calciner directly or by a riser duct. Bypass exhaust gas is drawn off near the inlet chamber. This exhaust gas is guided into a first mixing chamber, in which the exhaust gas is cooled to between 800 and 950 degrees C., then the exhaust gas is guided through a reaction pipeline segment, wherein the dwell time is between 0.5 and 3 seconds and ammonia, aqueous ammonia solution, or ammonia-releasing substances are injected for denitrification. Then the exhaust gas is guided into a second mixing chamber, in which the exhaust gas is cooled to between 150 250 degrees C. Then the exhaust gas is guided to a filter for dust removal.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: April 16, 2019
    Assignee: KHD Humboldt Wedag GmbH
    Inventors: Heiko Schuermann, Florian Nassenstein, Andreas Hand, Rolf Gussmann
  • Method and plant for denitrifying bypass gases in a multi-stage system of mixing chambers in a plant for producing cement clinker
    Publication number: 20180038648
    Abstract: A method and a corresponding plant for denitrifying bypass exhaust gases in a cement clinker production plant. Raw meal is sintered in a rotary kiln and deacidified in a calciner. A rotary kiln inlet chamber is connected to the calciner directly or by a riser duct. Bypass exhaust gas is drawn off near the inlet chamber. This exhaust gas is guided into a first mixing chamber, in which the exhaust gas is cooled to between 800 and 950 degrees C., then the exhaust gas is guided through a reaction pipeline segment, wherein the dwell time is between 0.5 and 3 seconds and ammonia, aqueous ammonia solution, or ammonia-releasing substances are injected for denitrification. Then the exhaust gas is guided into a second mixing chamber, in which the exhaust gas is cooled to between 150 250 degrees C. Then the exhaust gas is guided to a filter for dust removal.
    Type: Application
    Filed: March 2, 2016
    Publication date: February 8, 2018
    Inventors: Heiko Schuermann, Florian Nassenstein, Andreas Hand, Rolf Gussmann