Method and system for producing a source of thermodynamic energy by CO2 conversion from carbon-containing raw materials

摘要

The invention constitutes a process and system to generate electricity from the conversion of CO2 over carbon-containing raw material. It comprises steps of gasification of the raw material containing carbon by means of a gaseous flow essentially containing CO2, wherein the oxidation of the gaseous flow obtained after the gasification by oxygen holders and the oxidation of deactivated oxygen holders as obtained. The process allows to give value to the global energy as generated by the set of these steps to feed an electricity generating system, such as a turboalternator. The invention also corresponds to a system to perform such a process.

主权项

1. A process to produce electricity from raw material containing carbon (C), said process comprising an orderly and continuous repetition of the following steps, which constitute a processing cycle:
gasification in a gasification reactor of dry raw material containing carbon (C) with a gaseous flow of gasification (FGG) comprising CO2 at high temperature, said gasification supplying a first gaseous flow (PFG) comprising molecules of carbon monoxide (CO); oxidation in an oxidation reactor by oxygen holders in an oxidized state (MeO, wherein Me is a metal), of said molecules of carbon monoxide (CO) present in said first gaseous flow (PFG), and said oxidation supplying a second gaseous flow (DFG) at high temperature comprising CO2 and oxygen holders in a reduced state (Me); activation in an activation reactor of said oxygen holders in the reduced state (Me) with a gaseous flow of activation (FA), comprising elements of oxygen (O), said oxidation supplying oxygen holders in the oxidized state (MeO) and an oxygen-poor gaseous flow of activation at high temperature (FAA); and conversion of at least a part of the thermal power of said gaseous oxygen-poor flow of activation at high temperature (FAA) to electricity.