Patents by Inventor Alessandro Martini

Alessandro Martini 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: 20210032712
    Abstract: A method and apparatus for producing direct reduced iron using a pre-treated make-up gas as a reducing agent in a direct reduced iron reactor are provided. The method involves pre-treating a stream of make-up gas containing heavy hydrocarbons by subjecting the stream to low temperature adiabatic reforming at a temperature between 300° C. and 600° C., prior to using the stream of make-up gas as a reducing agent for producing direct reduced iron. The method also involves adjusting the humidity content of the stream of make-up gas after the low temperature adiabatic reforming by bypassing the stream to selectively split it into a first part of the stream of make-up gas and a second part of the stream of make-up gas, subjecting the first part to water separation, and then mixing the first part with the second part to obtain a reducing stream to be sent to direct reduced iron production.
    Type: Application
    Filed: August 2, 2017
    Publication date: February 4, 2021
    Inventors: Michele CONDOSTA, Daniela DALLE NOGARE, Alessandra PRIMAVERA, Alessandro MARTINIS, Eugenio ZENDEJAS MARTINEZ
  • Publication number: 20210016959
    Abstract: A container with lower vibrations, such as quaking and shaking as well as noise effects, known also as hooting, honking or howling, and an effective and cost-competitive method and device to decrease such phenomena during the discharge of granular material particles from silos, hoppers, bins, reactors and in general containers for storing or processing such granular material particles. The container includes at least one baffle that is attached to the container wall, in the lower portion or at the bottom of the tapered discharge part of said container, protruding towards the central axis of its tapered discharge part. The baffle forms a stagnant zone in the bed of the granular material particles in contact with the container wall whereby the particles in that zone flow under the friction against other particles instead of the friction between the particles and the wall.
    Type: Application
    Filed: March 8, 2018
    Publication date: January 21, 2021
    Inventors: Raul MORALES SERRANO, Stefano MAGIOLINO, Luis Manuel BECERRA LUCATERO, Alessandro MARTINIS, Andrea TAVANO
  • Patent number: 9938595
    Abstract: A direct reduction process producing DRI from iron oxide particles by reduction at a about 750° C. with a reducing gas mainly H2 and CO, that also includes CO2, H20, and methane, a the reduction reactor and the top gas effluent from the reduction reaction after cooling/scrubbing is split. The resulting first top gas portion with a first hydrocarbon-containing make-up gas passes through a catalytic reformer yielding an improved hot reducing gas first effluent. The second top gas portion passes through a CO2 removal unit and then with the second hydrocarbon-containing make-up gas passes through a heater yielding a hot CO2-lean recycle reducing gas second effluent. The first and second effluents are fed to the reducing zone of the reduction reactor as the reducing gas reactant. The flow rate of at least the second of the two make-up gases is regulated to control the carbon content of the DRI produced.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: April 10, 2018
    Assignees: HYL TECHNOLOGIES, S.A. DE C.V., DANIELI & C. OFFICINE MECCANICHE, S.P.A.
    Inventors: Jorge Octavio Becerra-Novoa, Alessandro Martinis
  • Patent number: 9725778
    Abstract: Direct reduction process and plant for producing DRI comprising a reduction reactor and at least one reducing gas heater typically comprising a convective heating section and a radiant heating section for raising the reducing gas temperature to a level adequate for iron oxides reduction to metallic iron, typically above 850° C., wherein the reducing gas fed to the reduction reactor comprises a stream of reducing gas recycled from the reduction reactor and a make-up stream of coke oven gas containing carbon compounds which may form carbon deposits in the heating path of said heater, namely BTX and other complex carbon compounds. The heater is provided with means for feeding oxidizing agents, for example steam, steam and air and/or oxygen at predetermined heating tubes successively for eliminating the carbon deposits which may form inside the heating tubes of said heater without interrupting the operation of the plant.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: August 8, 2017
    Assignees: HYL TECHNOLOGIES, S.A. DE C.V., DANIELI & C. OFFICINE MECCANICHE, S.P.A.
    Inventors: Alessandro Martinis, Jorge-Octavio Becerra-Novoa, Michele Condosta, Eugenio Zendejas-Martinez
  • Publication number: 20170003178
    Abstract: Method and apparatus to determine the skin-temperature of heat-exchange tubes and to prevent overheating of the heat-exchange tubes in a process gas heater (where extreme conditions prevent obtaining sufficiently-accurate direct thermocouple or pyrometric measurement to reliably prevent such overheating) by calculating the maximum skin temperature of heat-exchange tubes using preferably real-time calculation of the overall heat flux through the walls of the heat-exchange tubes with preferably real-time values of gas composition and gas temperature at the inlet and at the outlet of the tubes to calculate the overall transferred heat; and by periodically measuring the temperature of the gas flowing through each of the heat-exchange tubes, and using the measured gas temperatures for calculating the skin-temperature of all tubes, or of a tube selected for the highest gas temperature using the equation: Q = 2 ? ? ? ? L ? ( Ts - Tg ) / ( ln ? ro ri Km ) .
    Type: Application
    Filed: June 30, 2016
    Publication date: January 5, 2017
    Applicants: HYL TECHNOLOGIES, S.A. DE C.V., DANIELI & C. OFFICINE MECCANICHE S.p.A., NUCOR STEEL LOUISIANA, LLC
    Inventors: Jorge-Octavio BECERRA-NOVOA, Maria-Teresa Guerra-Reyes, Anthony Ramjewan, Alessandro Martinis
  • Patent number: 9358841
    Abstract: A winter tyre with improved traction on snow surfaces; the tyre has a tread with a raised pattern defined by a number of longitudinal and transverse grooves which form at least one longitudinal row of blocks projecting radially from a base surface of the tread. Each block has two longitudinal lateral surfaces bounding two corresponding longitudinal grooves, and two transverse lateral surfaces bounding two corresponding transverse grooves. At least one of the blocks has lateral channels, each of which is formed on the lateral surface of a corresponding block, extends from the base surface of the tread to a top surface of the block, and is designed to impede radial spin-out of snow trapped inside the lateral channel.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: June 7, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Stefano Ducci, Antonio Tirone, Alessandro Martini
  • Patent number: 9328395
    Abstract: The present invention concerns a method and an apparatus for producing DRI (Direct Reduced Iron) utilizing a high-oxidation reducing gas containing carbon monoxide and hydrogen, derived directly or indirectly from the gasification of hydrocarbons or coal, with a high content of oxidants (H2O and CO2). The invention provides a more efficient method and plant comprising a reactor in which particulate material of iron ore comes into contact with a high temperature reducing gas to produce DRI, with lower investment and operating costs, avoiding the need for a fired heater for the reducing gas fed into the reduction reactor. The reducing gas is heated to a temperature above 700° C. in two steps, a first step at a temperature below about 400° C.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: May 3, 2016
    Assignees: DANIELI & C. OFFICINE MECCANICHE SPA, HYL TECHNOLOGIES S.A. DE C.V.
    Inventors: Alessandro Martinis, Michele Condosta, Eugenio Zendejas Martínez, Pablo Enrique Duarte Escareño
  • Publication number: 20160002744
    Abstract: A direct reduction process producing DRI from iron oxide particles by reduction at a about 750° C. with a reducing gas mainly H2 and CO, that also includes CO2, H20, and methane, a the reduction reactor and the top gas effluent from the reduction reaction after cooling/scrubbing is split. The resulting first top gas portion with a first hydrocarbon-containing make-up gas passes through a catalytic reformer yielding an improved hot reducing gas first effluent. The second top gas portion passes through a CO2 removal unit and then with the second hydrocarbon-containing make-up gas passes through a heater yielding a hot CO2-lean recycle reducing gas second effluent. The first and second effluents are fed to the reducing zone of the reduction reactor as the reducing gas reactant. The flow rate of at least the second of the two make-up gases is regulated to control the carbon content of the DRI produced.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 7, 2016
    Applicants: HYL TECHNOLOGIES S.A. DE C.V., DANIELI & C. OFFICINE MECCANICHE, S.p.A.
    Inventors: Jorge Octavio Becerra-Novoa, Alessandro Martinis
  • Patent number: 9211765
    Abstract: A winter tire with improved traction on snow surfaces; the tire has a tread with a raised pattern defined by a number of longitudinal and transverse grooves which form at least one longitudinal row of blocks projecting radially from a base surface of the tread. Each block has two longitudinal lateral surfaces bounding two corresponding longitudinal grooves, and two transverse lateral surfaces bounding two corresponding transverse grooves. At least one of the blocks has lateral channels, each of which is formed on the lateral surface of a corresponding block, extends from the base surface of the tread to a top surface of the block, and is designed to impede radial spin-out of snow trapped inside the lateral channel.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: December 15, 2015
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Stefano Ducci, Antonio Tirone, Alessandro Martini
  • Publication number: 20150224827
    Abstract: A winter tyre with improved traction on snow surfaces; the tyre has a tread with a raised pattern defined by a number of longitudinal and transverse grooves which form at least one longitudinal row of blocks projecting radially from a base surface of the tread. Each block has two longitudinal lateral surfaces bounding two corresponding longitudinal grooves, and two transverse lateral surfaces bounding two corresponding transverse grooves. At least one of the blocks has lateral channels, each of which is formed on the lateral surface of a corresponding block, extends from the base surface of the tread to a top surface of the block, and is designed to impede radial spin-out of snow trapped inside the lateral channel.
    Type: Application
    Filed: April 23, 2015
    Publication date: August 13, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Stefano DUCCI, Antonio TIRONE, Alessandro MARTINI
  • Publication number: 20150184264
    Abstract: Direct reduction process and plant for producing DRI comprising a reduction reactor and at least one reducing gas heater typically comprising a convective heating section and a radiant heating section for raising the reducing gas temperature to a level adequate for iron oxides reduction to metallic iron, typically above 850° C., wherein the reducing gas fed to the reduction reactor comprises a stream of reducing gas recycled from the reduction reactor and a make-up stream of coke oven gas containing carbon compounds which may form carbon deposits in the heating path of said heater, namely BTX and other complex carbon compounds. The heater is provided with means for feeding oxidizing agents, for example steam, steam and air and/or oxygen at predetermined heating tubes successively for eliminating the carbon deposits which may form inside the heating tubes of said heater without interrupting the operation of the plant.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 2, 2015
    Applicants: HYL TECHNOLOGIES, S.A. DE C.V., DANIELI & C. OFFICINE MECCANICHE, S.p.A.
    Inventors: Alessandro Martinis, Jorge-Octavio Becerra-Novoa, Michele Condosta, Eugenio Zendejas-Martinez
  • Patent number: 8961648
    Abstract: An integrated steelmaking plant for merging continuous operation of a reduction reactor producing hot DRI with the batch operation of a DRI melting furnace(s). The reactor produces hot DRI for a DRI melting furnace or cold DRI continuously even when the DRI production exceeds the DRI consumption rate of the furnace or suffers long-term operational delays. The reduction reactor has a DRI cooling zone therein which is selectively operable for cooling DRI when the hot DRI produced in the reactor can't all be consumed by the DRI melting furnace and when the capacity of the DRI bin feeding the melting furnace is insufficient to accumulate additional hot DRI. No separate DRI cooling vessel plus its gas compressor and gas cooling-cleaning system is needed, thus decreasing capital and operational costs. This also permits a flexible and modular construction and operation of a steelmaking plant with high or low pressure reduction reactors.
    Type: Grant
    Filed: May 8, 2010
    Date of Patent: February 24, 2015
    Assignees: HYL Technologies, S.A. DE C.V., Danieli & C. Officine Mecaniche, S.p.A.
    Inventors: Jorge Octavio Becerra-Novoa, Ronald Victor Manuel Lopez-Gomez, Alessandro Martinis, Andrea Tavano
  • Patent number: 8940076
    Abstract: Production method and apparatus for direct reduced iron (DRI), a.k.a sponge iron, by contacting iron oxides with recycled and regenerated hot reducing gases containing H2 & CO2. This invention decreases uncontained emission of CO2 to the atmosphere from combustion of carbon-bearing fuels in the reducing-gas heater by substituting, at least partially, a gas mainly comprising hydrogen in lieu of the usual carbon-bearing fuels. The hydrogen fuel stream, depleted of CO2 by means of a physical gas separation unit (which can be a PSA/VPSA type adsorption unit, a gas separation membrane unit or a combination of both such units) is derived from at least a portion of regenerated reducing gases being recycled to the reduction reactor. The derived hydrogen fuel stream is combusted in the reducing gas heater and/or other thermal equipment in the reduction plant, thus decreasing the CO2 emissions directly to the atmosphere.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: January 27, 2015
    Assignees: HYL Technologies, S.A. DE C.V., Danieli & C. Officine Meccaniche, S.p.A.
    Inventors: Pablo Enrique Duarte-Escareño, Eugenio Zendejas-Martinez, Andrea Tavano, Alessandro Martinis, Omar Della Gaspera
  • Patent number: 8940334
    Abstract: The present invention relates to pharmaceutical composition containing nemorubicin hydrochloride incorporated in microspheres. The compositions are useful for chemoembolization, particularly for loco regional treatment of tumors.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: January 27, 2015
    Assignee: Nerviano Medical Sciences S.R.L.
    Inventors: Maria Cristina Geroni, Olga Valota, Alessandro Martini, Paolo Elia Cappella
  • Publication number: 20130305883
    Abstract: The present invention concerns a method and an apparatus for producing DRI (Direct Reduced Iron) utilizing a high-oxidation reducing gas containing carbon monoxide and hydrogen, derived directly or indirectly from the gasification of hydrocarbons or coal, with a high content of oxidants (H2O and CO2). The invention provides a more efficient method and plant comprising a reactor in which particulate material of iron ore comes into contact with a high temperature reducing gas to produce DRI, with lower investment and operating costs, avoiding the need for a fired heater for the reducing gas fed into the reduction reactor. The reducing gas is heated to a temperature above 700° C. in two steps, a first step at a temperature below about 400° C.
    Type: Application
    Filed: September 28, 2011
    Publication date: November 21, 2013
    Applicants: HYL TECHNOLOGIES S.A. DE C.V., DANIELI & C. OFFICINE MECCANICHE SPA
    Inventors: Alessandro Martinis, Michele Condosta, Eugenio Zendejas Martinez, Pablo Enrique Duarte Escareno
  • Publication number: 20120273105
    Abstract: A winter tyre with improved traction on snow surfaces; the tyre has a tread with a raised pattern defined by a number of longitudinal and transverse grooves which form at least one longitudinal row of blocks projecting radially from a base surface of the tread. Each block has two longitudinal lateral surfaces bounding two corresponding longitudinal grooves, and two transverse lateral surfaces bounding two corresponding transverse grooves. At least one of the blocks has lateral channels, each of which is formed on the lateral surface of a corresponding block, extends from the base surface of the tread to a top surface of the block, and is designed to impede radial spin-out of snow trapped inside the lateral channel.
    Type: Application
    Filed: September 21, 2010
    Publication date: November 1, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Stefano Ducci, Antonio Tirone, Alessandro Martini
  • Publication number: 20120125151
    Abstract: An integrated steelmaking plant design is disclosed for efficiently merging the continuous operation of a reduction reactor producing hot DRI with the batch operation of at least one DRI melting furnace. The direct reduction reactor is adapted for producing hot DRI for its consumption in a DRI melting furnace or for producing cold DRI when the continuous production of DRI will exceed the DRI consumption rate of the melting furnace or when it suffers long-term operational delays. The reduction reactor has a DRI cooling zone within the same reactor vessel which is selectively operable for cooling the DRI in the same reactor vessel when the hot DRI produced in said reactor will not be consumed by the DRI melting furnace and when the capacity of the hot DRI bin feeding the melting furnace is insufficient to accumulate the amount of hot DRI which will not be consumed.
    Type: Application
    Filed: May 8, 2010
    Publication date: May 24, 2012
    Inventors: Jorge Octavio Becerra-Novoa, Ronald Victor Manuel Lopez-Gomez, Alessandro Martinis, Andrea Tavano
  • Publication number: 20120125157
    Abstract: A method and apparatus for producing direct reduced iron (DRI), also known as sponge iron, by means of direct contact of iron oxides with a stream of recycled and regenerated hot reducing gases containing hydrogen and carbon monoxide. The invention provides a way for decreasing the uncontained emission of CO2 to the atmosphere produced by combustion of carbon-bearing fuels in the reducing gas heater by substituting, at least partially, a gas stream mainly composed of hydrogen in lieu of the usual carbon-bearing fuels. The hydrogen fuel stream, depleted of CO2 by means of a physical gas separation unit (which can be a PSA/VPSA type adsorption unit, a gas separation membrane unit or combination of PSA/VPSA unit and a gas separation membrane unit) is derived from at least a portion of a stream of regenerated reducing gases being recycled to the reduction reactor.
    Type: Application
    Filed: July 21, 2010
    Publication date: May 24, 2012
    Applicants: Danieli & C. Officine Meccaniche, S.P.A, HYL Technologies, S.A. DE C.V.
    Inventors: Pablo Enrique Duarte-Escareño, Engenio Zendejas-Martinez, Andrea Tavano, Alessandro Martinis, Omar Della Gaspera
  • Publication number: 20120121716
    Abstract: The present invention relates to pharmaceutical composition containing nemorubicin hydrochloride incorporated in microspheres. The compositions are useful for chemoembolisation, particularly for loco regional treatment of tumors.
    Type: Application
    Filed: April 30, 2008
    Publication date: May 17, 2012
    Applicant: NERVIANO MEDICAL SCIENCES S.R.L.
    Inventors: Maria Cristina Geroni, Olga Valota, Alessandro Martini, Paolo Elia Cappella
  • Publication number: 20110224629
    Abstract: A drug delivery device for the inner ear is described. A drug delivery member for the inner ear without any stimulation electrodes has an intra-cochlear portion that penetrates into the inner ear of the patient and contains a drug eluting polymer material having at least one therapeutic drug which is released over time in a therapeutically effective amount into fluid in the inner ear of the patient. An extra-cochlear portion of the drug delivery member resides in the middle ear of a patient and completely occludes where the intra-cochlear portion penetrates into the inner ear. An anchor rod is within the intra-cochlear portion of the drug delivery member and adapted to extend out into the middle ear, ending in a retrieval knob for pulling the drug delivery member out of the cochlea.
    Type: Application
    Filed: May 11, 2011
    Publication date: September 15, 2011
    Applicant: MED-EL ELEKTROMEDIZINISCHE GERAETE GMBH
    Inventors: Claude Jolly, Alessandro Martini