Patents by Inventor Jafar Towfighi

Jafar Towfighi 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).

  • Nanocatalyst and Process for Removing Sulfur Compounds from Hydrocarbons
    Publication number: 20140030171
    Abstract: The invention related to a nano-structured catalyst system for removing mercaptans and/or H2S from hydrocarbonous gas mixtures and an apparatus for removing mercaptans and H2S from gas streams utilizing the catalyst system.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 30, 2014
    Applicant: RIPI
    Inventors: Ali Mohamadalizadeh, Alimorad Rashidi, Jafar Towfighi, Ali Mohajeri, Morteza Rezapour, Kheirollah Jafarijozani, Mehdi Vahidi
  • Carbon nanotube catalyst for olefin production
    Patent number: 8198498
    Abstract: A method for producing olefins using a carbon nanotube catalyst is disclosed. Initially, a hydrocarbon feedstock is received. The hydrocarbon feedstock, the carbon nanotube catalyst, and steam are mixed in a thermal cracking reactor. The mixture is heated in the thermal cracking reactor to a particular temperature. The olefins are then separated from the mixture. The carbon nanotube catalyst can include carbon nanotubes coated with M1xOy and modified with M2mOn. M1 can be either the element silicon or tungsten, x can be an integer that represents the oxidation number of M1, and y can an integer that represents the number of oxygen atoms required by the oxidation number of M1. M2 can be a metallic element, m can be an integer that represents the oxidation number of M2, and n can be an integer that represents the number of oxygen atoms required by the oxidation number of M2.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: June 12, 2012
    Inventors: Kamyar Keyvanloo, Jafar Towfighi Darian, Ali Mohamadalizadeh
  • HYBRID NANO SORBENT
    Publication number: 20110168018
    Abstract: The invention relates to a hybrid nano sorbent that is capable of reducing and/or removing acidic gases in a gas stream. The hybrid nano sorbent includes at least (i) a nano-structured carbonous material including at least one organic functional group, (ii) at least one metal from at least one of groups 2A, 6B, 7B, 9B or 10B of the periodic table of elements, or (iii) a combination of (i) and (ii). The method for reducing and/or removing the acidic gases in a stream is also described.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 14, 2011
    Applicant: RESEARCH INSTITUTE OF PETROLEUM INDUSTRY (RIPI)
    Inventors: Ali Mohamadalizadeh, Alimorad Rashidi, Jafar Towfighi Darian, Ali Mohajeri, Sorena Sattari, Mehrdad Manteghian
  • CARBON NANOTUBE CATALYST FOR OLEFIN PRODUCTION
    Publication number: 20100317909
    Abstract: A method for producing olefins using a carbon nanotube catalyst is disclosed. Initially, a hydrocarbon feedstock is received. The hydrocarbon feedstock, the carbon nanotube catalyst, and steam are mixed in a thermal cracking reactor. The mixture is heated in the thermal cracking reactor to a particular temperature. The olefins are then separated from the mixture. The carbon nanotube catalyst can include carbon nanotubes coated with M1xOy and modified with M2mOn. M1 can be either the element silicon or tungsten, x can be an integer that represents the oxidation number of M1, and y can an integer that represents the number of oxygen atoms required by the oxidation number of M1. M2 can be a metallic element, m can be an integer that represents the oxidation number of M2, and n can be an integer that represents the number of oxygen atoms required by the oxidation number of M2.
    Type: Application
    Filed: August 19, 2010
    Publication date: December 16, 2010
    Inventors: KAMYAR KEYVANLOO, JAFAR TOWFIGHI DARIAN, ALI MOHAMADALIZADEH