Patents by Inventor Pantelis Orfanidis

Pantelis Orfanidis 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).

  • Removal of urea and ammonia from exhaust gases
    Patent number: 10640428
    Abstract: The invention relates to a method for recovery of urea dust and ammonia from a gas stream by contacting said gas stream with an aqueous sulphuric acid solution, thus forming an acid solution of ammonium sulphate and urea, characterized in that the acid solution is concentrated to a melt comprising less than 5 wt % of water, which melt is subsequently transferred into solid particles comprising urea and ammonium sulphate.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 5, 2020
    Assignee: Stamicarbon B.V.
    Inventors: Jozef Hubert Meessen, Pantelis Orfanidis
  • REMOVAL OF UREA AND AMMONIA FROM EXHAUST GASES
    Publication number: 20170137330
    Abstract: The invention relates to a method for recovery of urea dust and ammonia from a gas stream by contacting said gas stream with an aqueous sulphuric acid solution, thus forming an acid solution of ammonium sulphate and urea, characterized in that the acid solution is concentrated to a melt comprising less than 5 wt % of water, which melt is subsequently transferred into solid particles comprising urea and ammonium sulphate.
    Type: Application
    Filed: January 31, 2017
    Publication date: May 18, 2017
    Applicant: Stamicarbon B.V.
    Inventors: Jozef Hubert MEESSEN, Pantelis ORFANIDIS
  • Removal of urea and ammonia from exhaust gases
    Patent number: 9556077
    Abstract: The invention relates to a method for recovery of urea dust and ammonia from a gas stream by contacting said gas stream with an aqueous sulphuric acid solution, thus forming an acid solution of ammonium sulphate and urea, characterized in that the acid solution is concentrated to a melt comprising less than 5 wt % of water, which melt is subsequently transferred into solid particles comprising urea and ammonium sulphate.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 31, 2017
    Assignee: STAMICARBON B.V.
    Inventors: Jozef Hubert Meessen, Pantelis Orfanidis
  • Removal of urea and ammonia from exhaust gases
    Patent number: 9464009
    Abstract: The invention relates to a method for recovery of urea dust and ammonia from a gas stream by contacting said gas stream with an aqueous sulphuric acid solution, thus forming an acid solution of ammonium sulphate and urea, characterized in that the acid solution is concentrated to a melt comprising less than 5 wt % of water, which melt is subsequently transferred into solid particles comprising urea and ammonium sulphate.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: October 11, 2016
    Assignee: Stamicarbon B.V.
    Inventors: Jozef Hubert Meessen, Pantelis Orfanidis
  • REMOVAL OF UREA AND AMMONIA FROM EXHAUST GASES
    Publication number: 20140090433
    Abstract: The invention relates to a method for recovery of urea dust and ammonia from a gas stream by contacting said gas stream with an aqueous sulphuric acid solution, thus forming an acid solution of ammonium sulphate and urea, characterized in that the acid solution is concentrated to a melt comprising less than 5 wt % of water, which melt is subsequently transferred into solid particles comprising urea and ammonium sulphate.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: STAMICARBON B.V.
    Inventors: Jozef Hubert MEESSEN, Pantelis ORFANIDIS
  • REMOVAL OF UREA AND AMMONIA FROM EXHAUST GASES
    Publication number: 20120240649
    Abstract: The invention relates to a method for recovery of urea dust and ammonia from a gas stream by contacting said gas stream with an aqueous sulphuric acid solution, thus forming an acid solution of ammonium sulphate and urea, characterized in that the acid solution is concentrated to a melt comprising less than 5 wt % of water, which melt is subsequently transferred into solid particles comprising urea and ammonium sulphate.
    Type: Application
    Filed: August 10, 2010
    Publication date: September 27, 2012
    Applicant: Stamicarbon B.V.
    Inventors: Jozef Hubert Meessen, Pantelis Orfanidis