| 摘要 |
The process of producing energy and/or synthesis gas by gasification of a liquid and/or solid charge in a chemical loop comprising four different reactional zones for oxidation, reduction, gasification and production of oxygen, comprises producing oxygen in an oxidation reactional zone R2 for the production of oxygen by exposing a metallic oxide in its maximum oxidation state at gaseous atmosphere with low partial pressure of oxygen gas consisting of a vector comprising effluent reduction, and transporting the oxygen to a gas vector unit in the gasification zone R4. The process of producing energy and/or synthesis gas by gasification of a liquid and/or solid charge in a chemical loop comprising four different reactional zones for oxidation, reduction, gasification and production of oxygen, comprises producing oxygen in an oxidation reactional zone R2 for the production of oxygen by exposing a metallic oxide in its maximum oxidation state at gaseous atmosphere with low partial pressure of oxygen gas consisting of a vector comprising effluent reduction, transporting the oxygen to a gas vector unit in the gasification zone R4 and effectuating the gasification of the liquid and/or solid charge by contacting the vector gas enriched of oxygen at high temperature with a charge for producing synthesis gas, performing the reduction of solid carrier for liberating oxygen and to oxidize the synthesis gas in the reduction zone, and oxidizing the solid carrier that has a reduced part for furnishing the oxygen by contact of air so as to provide its maximum oxidation state in the oxidation zone. The reaction in the reduction zone is exothermic. Heat is used in the oxidation zone R1 and reduction zone R3 to allow the operation of energy process. A portion of the syngas product is used in the process to provide the necessary heat for the operation and produce excess heat that is valued, supplied in the reduction zone, and recovered in output of the gasification reaction zone. The liquid and/or solid feed is coal, petroleum coke or liquid feed of which 10% of the feed has a boiling point of less than 340[deg] C. The reactional zones are placed in a same or different rotative reactor. The surplus energy is recovered by heat exchange within the reaction zones or gaseous effluents. The fraction of transfer capability of metal oxides X is 0.95-1 in the oxidation reaction zone and 0-0.1 in the reduction reaction zone. The fraction of total transfer capability delta X is 0.05-0.5 in the oxygen production zone. |
