Patents by Inventor Madalena Maria Gomes De Queiroz Dias

Madalena Maria Gomes De Queiroz Dias 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: 20230040153
    Abstract: The present disclosure relates to a novel improved method for continuous crystallization of highly crystalline clathrate hydrates. The novel improved method utilizes a novel hydrator capable of overcoming heat and mass transfer limitations that usually constrain crystallization rate and thus reduces process productivity. The disclosed method and hydrator are for production of crystalline clathrates in general, CO2 capture, capture of other clathrate forming compounds, CO2 storage and transportation, storage and transportation of any clathrate forming compound in a solid lattice, gas separation or water desalination or purification purposes.
    Type: Application
    Filed: December 30, 2020
    Publication date: February 9, 2023
    Inventors: José Carlos BRITO LOPES, Madalena Maria GOMES DE QUEIROZ DIAS, Marcelo Filipe DOS SANTOS COSTA, Carlos André DE MOURA TEIXEIRA, Ricardo Jorge NOGUEIRA DOS SANTOS
  • Patent number: 11484862
    Abstract: A chemical reactor/mixer, in particular for producing hydrates comprising a mixer network plate and heat exchanger plates wherein the network mixer plate comprises an array of chambers that are connected by channels where the flow of one or more fluids is mixed and divide sequentially. The network mixer plate is confined by the heat exchanger plate that have an inner chamber where a heat exchanger fluid is introduced. Said network plates and heat exchanger plates are designed to have the option to be assembled as modules of larger processing units.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: November 1, 2022
    Assignee: PETROGAL, S.A.
    Inventors: José Carlos Brito Lopes, Madalena Maria Gomes de Queiroz Dias, Marcelo Filipe Dos Santos Costa, Ricardo Jorge Nogueira dos Santos, Carlos André De Moura Teixeira
  • Publication number: 20210291140
    Abstract: A chemical reactor/mixer, in particular for producing hydrates comprising a mixer network plate and heat exchanger plates wherein the network mixer plate comprises an array of chambers that are connected by channels where the flow of one or more fluids is mixed and divide sequentially. The network mixer plate is confined by the heat exchanger plate that have an inner chamber where a heat exchanger fluid is introduced. Said network plates and heat exchanger plates are designed to have the option to be assembled as modules of larger processing units.
    Type: Application
    Filed: April 9, 2018
    Publication date: September 23, 2021
    Inventors: José Carlos BRITO LOPES, Madalena Maria GOMES DE QUEIROZ DIAS, Marcelo Filipe DOS SANTOS COSTA, Ricardo Jorge NOGUEIRA DOS SANTOS, Carlos André De Moura Teixeira
  • Publication number: 20090263497
    Abstract: The present invention provides a continuous process for producing calcium phosphate nanoparticles in a network mixer or static mixer reactor, fed by a calcium solution, a phosphorous solution and an alkaline solution and, optionally, one solvent or dispersing agent. The proposed process enables the micromixing control, which is essential to form nanometric structures, but it is also a determining factor in the crystals purity, crystallinity and morphology. The reactants distribution scheme at the inlet of the reactor and along the reactor, performed continuously or varying in time, is also a crucial factor to programme the pH of the reactant media along the reactor The calcium phosphate nanoparticles suspension that exits the reactor can be submitted to further aging, ultra-sounds, separation, drying, sintering and milling processes.
    Type: Application
    Filed: July 16, 2007
    Publication date: October 22, 2009
    Applicants: FLUDINOVA, ENGENHARIA DE FLUIDOS, S.A., INSTITUTO NACIONAL DE ENGENHARIA BIOMEDICA
    Inventors: Jose Carlos Brito Lopes, Madalena Maria Gomes De Queiroz Dias, Viviana Manueal Tenedorio Matos Da Silva, Paulo Alexandre Quadros De Oliviera E Santos, Fernando Jorge Mendes Monteiro, Paulo Jorge Da Cunha Gomes, Alis Yovana Pataquiva Mateus