Production of iron
AssigneeTechnological Resources Pty. Limited
InventorTimothy James Evans
Life of this patent
Estimating the term…
Abstract
A two stage ironmaking process is disclosed. A first stage includes solid state reduction of iron ore and producing a partially-reduced iron-containing feed material and an off-gas containing CO2 at a location that is in close proximity to a site for sequestering CO2. A second stage includes transporting the feed material to an ironmaking facility iron at another location and producing iron from the feed material.
Claims26
An ironmaking process that includes:
- (a) a first stage which includes:
- (i) reducing iron ore in a solid state in a solid state reduction facility and producing a partially-reduced iron-containing feed material and an off-gas containing CO2, with the solid state reduction facility being situated at a location that is in close proximity to a site for sequestering CO2,
- (ii) collecting CO2 gas produced during the solid state reduction of iron ore;
- and
- (iii) sequestering the CO2 gas;
- and
- (b) a second stage which includes transporting the feed material from the first stage to an ironmaking facility and producing iron.
3-5. (canceled)
(canceled)
(canceled)
(canceled)
15-20. (canceled)
A two-stage ironmaking process wherein a first stage includes solid state reduction of iron ore and producing a partially-reduced iron-containing feed material and an off-gas containing CO2 at a location that is in close proximity to a site for sequestering CO2, and a second stage includes transporting the feed material to an ironmaking facility iron at another location and producing iron from the feed material.
A first stage of a two stage process for producing molten iron with minimal CO2 emissions, with the first stage including:
- (a) reducing iron ore having a gangue content of greater than 6% by weight on a dry basis in a solid state and producing a partially-reduced iron-containing feed material having a metallisation degree of 85% or less and an off-gas containing CO2 in a solid state reduction facility at a location in the vicinity of a CO2 sequestration facility;
- (b) capturing CO2 released from the solid state reduction facility and transporting the CO2 to the CO2 sequestration facility and sequestering the CO2;
- (c) stockpiling the partially-reduced iron-containing feed material produced in the solid state reduction facility;
- (d) reclaiming the stockpiled partially-reduced iron-containing feed material for transportation to an ironmaking facility such as a blast furnace located remotely from the solid state reduction facility.
A process for producing a metallised iron product in a solid state reduction facility for transportation to an ironmaking facility such as a blast furnace located remotely from the solid state reduction facility, the process including:
- (a) supplying lump iron ore with gangue of at least 6% on a dry weight basis to the solid state reduction facility, the lump iron ore having a nominal volume of 4 cm3 or greater;
- (b) reducing the iron ore to greater than 60% and equal to or less than 85% metallisation in the solid state reduction facility and producing a metallised lump iron product and an off-gas having greater than 90% CO2;
- and
- (c) stockpiling the metallised lump iron product for transportation to the ironmaking facility.
An apparatus for producing iron from iron ore with minimal CO2 emissions including, a solid state reduction facility for reducing iron ore having a gangue content of at least 6% by weight on a dry basis to less than 80% metallisation, and an ironmaking facility for completing reduction of partially reduced iron ore from the solid state reduction facility and producing molten iron.
33-40. (canceled)
Dependencies are inferred from the claim text.