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AssigneeShell Oil Company
InventorsGijsbert Jan Van Heeringen, Ewout Martijn Van Jarwaarde, Hendrik Jan Van Der Ploeg, Cornelis Jacobus Smit
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A process to prepare elemental iron by contacting an iron ore feed with a reducing gas at a pressure of between 1 and 10 bar to obtain iron and an off-gas includes preparing the reducing gas by performing the following steps: (a) partially oxidizing a mixture comprising a solid or liquid carbonaceous fuel and oxygen at a pressure of between 10 and 80 bar, thereby obtaining a gas comprising H2 and CO; (b) removing CO2 and H2S from the gas obtained in step (a) to obtain an intermediate gas comprising H2 and CO; (c) supplying the intermediate gas obtained in step (b) to a H2-selective membrane to obtain a H2-rich permeate gas and a CO-rich retentate; and (d) heating H2-rich permeate to obtain a heated H2-rich permeate as the reducing gas.
A process to prepare elemental iron by contacting an iron ore feed with a reducing gas at a pressure of between 1 and 10 bar to obtain iron and an off-gas, including preparing the reducing gas by performing the following steps:
A method to retrofit an original system for preparing elemental iron, wherein the original system comprises at least one furnace for contacting an iron ore with a reducing gas and a steam methane reformer for preparing the reducing gas, wherein the steam methane reformer comprises a reactor having tubes filled with catalyst and a plurality of burners to heat the exterior of the tubes, comprising:
A process for preparing elemental iron, comprising
Dependencies are inferred from the claim text.