Method and system for supplying thermal energy to a thermal processing system from the gasification of dry, carbon-containing raw materials, followed by oxidation, and installation for operating this system
First Claim
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1. A process to supply power to a thermal treatment system of raw material, the process comprising:
- gasifying dry material containing carbon in a gasification reactor for dry raw material containing carbon (MPCS) with a gaseous flow of gasification (FGG) containing CO2 at a temperature higher than 900°
C. and oxygen (O2), the gasifying supplying a first gaseous flow (PFG) comprising molecules of carbon monoxide, di-hydrogen and water steam;
oxidizing the first gaseous flow in an oxidation reactor by oxygen holders in an oxidized state (MeO, where Me is a metal) of the molecules of carbon monoxide and di-hydrogen as present in said first gaseous flow (PFG), to supply a second gaseous flow (DFG) at a temperature higher than 900°
C. and comprising CO2, water steam and oxygen holders in a reduced state (Me), wherein the temperature of the second gaseous flow imparts thermal power to the second gaseous flow;
activating the oxygen holders in a reduced state within an activation reactor with a gaseous flow (FAP) comprising elements of oxygen, the activating supplying oxygen holders in oxidized state (MeO) and an excess of thermal power;
supplying one or more of at least a part of the thermal power of said second gaseous flow (DFG) or the excess thermal power from the activating to the thermal treatment system for raw material; and
increasing of temperature of the gaseous flow of gasification (FGG) with at least a part of the excess thermal power from the activating of oxygen holders to increase the temperature of the gaseous flow of gasification (FGG) to the gasification temperature.
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Abstract
The invention comprises a thermal power supply process for a treatment system for raw material. It also refers to a system operating this process and a facility operating said system. The process comprises steps of gasification of dry raw material containing carbon (MPCS) in a first reactor by a gaseous flow of gasification containing CO2, oxidation of gasification gases by oxygen holders in a second reactor and an activation of the oxygen holders as used during the oxidation in a third reactor.
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Citations
9 Claims
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1. A process to supply power to a thermal treatment system of raw material, the process comprising:
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gasifying dry material containing carbon in a gasification reactor for dry raw material containing carbon (MPCS) with a gaseous flow of gasification (FGG) containing CO2 at a temperature higher than 900°
C. and oxygen (O2), the gasifying supplying a first gaseous flow (PFG) comprising molecules of carbon monoxide, di-hydrogen and water steam;oxidizing the first gaseous flow in an oxidation reactor by oxygen holders in an oxidized state (MeO, where Me is a metal) of the molecules of carbon monoxide and di-hydrogen as present in said first gaseous flow (PFG), to supply a second gaseous flow (DFG) at a temperature higher than 900°
C. and comprising CO2, water steam and oxygen holders in a reduced state (Me), wherein the temperature of the second gaseous flow imparts thermal power to the second gaseous flow;activating the oxygen holders in a reduced state within an activation reactor with a gaseous flow (FAP) comprising elements of oxygen, the activating supplying oxygen holders in oxidized state (MeO) and an excess of thermal power; supplying one or more of at least a part of the thermal power of said second gaseous flow (DFG) or the excess thermal power from the activating to the thermal treatment system for raw material; and increasing of temperature of the gaseous flow of gasification (FGG) with at least a part of the excess thermal power from the activating of oxygen holders to increase the temperature of the gaseous flow of gasification (FGG) to the gasification temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification