Patents by Inventor Elena Stylianou

Elena Stylianou 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).

  • Publication number: 20230406699
    Abstract: A process of dissociating ammonia into a dissociated hydrogen/nitrogen stream in catalyst tubes within a radiant tube furnace and an adiabatic or isothermal unit containing catalyst, along with downstream purification process units to purify the dissociated hydrogen/nitrogen stream into high purity hydrogen product.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 21, 2023
    Applicant: KELLOGG BROWN & ROOT LLC
    Inventors: Khoa Dang Nguyen, Umesh Jain, Paolo Brunengo, Elena Stylianou, Rohit Khurana
  • Patent number: 9683776
    Abstract: Methods and systems for separating hydrocarbons using one or more dividing wall columns are provided. The method can include introducing a hydrocarbon fluid to a first dividing wall column. A first overhead comprising methane, ethane, or a combination thereof, a first intermediate comprising ethane, a second intermediate comprising ethane, and a first bottoms comprising one or more hydrocarbons having three or more carbon atoms per molecule can be recovered from the first dividing wall column. The first overhead can be introduced to a process for producing a liquefied natural gas. The first bottoms can be introduced to a second dividing wall column. A second overhead comprising propane, a third intermediate comprising butane, and a second bottoms comprising one or more hydrocarbons having five or more carbon atoms per molecule can be recovered from the second dividing wall column. The second overhead can be introduced to the process for producing a liquefied natural gas.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: June 20, 2017
    Assignee: Kellogg Brown & Root LLC
    Inventors: Elena Stylianou, Myrian Andrea Schenk
  • Publication number: 20130213088
    Abstract: Methods and systems for separating hydrocarbons using one or more dividing wall columns are provided. The method can include introducing a hydrocarbon fluid to a first dividing wall column. A first overhead comprising methane, ethane, or a combination thereof, a first intermediate comprising ethane, a second intermediate comprising ethane, and a first bottoms comprising one or more hydrocarbons having three or more carbon atoms per molecule can be recovered from the first dividing wall column. The first overhead can be introduced to a process for producing a liquefied natural gas. The first bottoms can be introduced to a second dividing wall column. A second overhead comprising propane, a third intermediate comprising butane, and a second bottoms comprising one or more hydrocarbons having five or more carbon atoms per molecule can be recovered from the second dividing wall column. The second overhead can be introduced to the process for producing a liquefied natural gas.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 22, 2013
    Applicant: KELLOGG BROWN & ROOT LLC
    Inventors: Elena Stylianou, Myrian Andrea Schenk