Martinis
Alessandro Martinis, Pazzuolo Del Friuli, Udine IT
Patent application number | Description | Published |
---|---|---|
20160002744 | DIRECT REDUCTION PROCESS WITH IMPROVED PRODUCT QUALITY AND PROCESS GAS EFFICIENCY - A direct reduction process producing DRI from iron oxide particles by reduction at a about 750° C. with a reducing gas mainly H | 01-07-2016 |
Alessandro Martinis, Pozzuolo IT
Patent application number | Description | Published |
---|---|---|
20090013828 | Reduction Process and Plant - Reduction process and relative plant for the production of metallic iron by means of the direct reduction of iron ore, in which a reduction shaft is connected to a source of reducing gas obtained from the gasification of coal. The process advantageously comprises a step in which a portion or all of the synthesis gas entering the plant circuit is processed to separate the methane from the rest of the components of said synthesis gas. The advantageous management of the extracted methane enables the entire reduction process to be optimized, making the efficiency of the process independent of the methane content in the original synthesis gas and making it possible to control the carbon content of the product more accurately and more easily. | 01-15-2009 |
Alessandro Martinis, Poz-Zuolo Del Friuli (udine) IT
Patent application number | Description | Published |
---|---|---|
20120125151 | INTEGRATED STEEL PLANT WITH PRODUCTION OF HOT OR COLD DRI - 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. The need of a DRI cooling vessel with its associated gas compressor and gas cooling and cleaning system is dispensed with therefore decreasing the capital and operational costs of said steelmaking plant. The invention also allows for a flexible and modular construction and operation of a steelmaking plant and is applicable to reduction reactors whether designed to operate at high or low pressure. | 05-24-2012 |
Alessandro Martinis, Pozzuolo Del Friuli (ud) IT
Patent application number | Description | Published |
---|---|---|
20120125157 | METHOD FOR PRODUCING DIRECT REDUCED IRON WITH LIMITED CO2 EMISSIONS - 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 CO | 05-24-2012 |
Alessandro Martinis, Zugliano- Pozzuolo Del Friull IT
Patent application number | Description | Published |
---|---|---|
20130305883 | METHOD AND APPARATUS FOR PRODUCING DIRECT REDUCED IRON UTILIZING A SOURCE OF REDUCING GAS COMPRISING HYDROGEN AND CARBON MONOXIDE - 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 (H | 11-21-2013 |
Alessandro Martinis, Pozzuolo Del Friuli IT
Patent application number | Description | Published |
---|---|---|
20150184264 | METHOD AND APPARATUS FOR PRODUCTION OF DIRECT REDUCED IRON (DRI) UTILIZING COKE OVEN GAS - 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. The make-up stream of cold COG can be combined with the recycled gas at a point in the gas heating path of the heater where the tubes have a skin wall temperature of at least 700° C., or when the mixture of recycled gas and COG is at a temperature above 700° C. for minimizing clogging or fouling of heating equipment. | 07-02-2015 |
Jorge M. Martinis, Bryan, TX US
Patent application number | Description | Published |
---|---|---|
20160092660 | Characterization of Complex Hydrocarbon Mixtures for Process Simulation - A process for simulating the composition and properties of hydrocarbon mixtures such as petroleum fractions with a reduced number of representative compounds that closely match the characteristics of the complete molecular composition of the mixture. | 03-31-2016 |
Jorge M. Martinis, Caracas VE
Patent application number | Description | Published |
---|---|---|
20100075828 | HYDROGENATION CATALYST WITH IMPROVED TEXTURAL PROPERTIES - A method is provided for making a catalyst support, and includes the steps of providing an aqueous suspension of refractory inorganic oxide and refractory inorganic carbide; forming the suspension into droplets; exposing the droplets to a gelling agent whereby the droplets are at least partially solidified so as to provide substantially sphere-shaped portions of refractory inorganic oxide and refractory inorganic carbide; and drying and calcining the sphere-shaped portions so as to provide substantially spherical particles of catalyst support containing refractory inorganic oxide and refractory inorganic carbide. Catalytically active metal phases and hydrogenation processes using the catalyst are also described. | 03-25-2010 |