Device for producing hot gas comprises oxidizing active material coating device's passages to produce energy, using cycle of oxidation, purging and reduction to regenerate material

• Main Authors: BROUTIN PAUL, GARNIER DOMINIQUE, LEBAS ETIENNE
• Format: Patent
• Language: English; French
• Published: 07.05.2004
• Edition: 7
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; THEIR RELEVANT APPARATUS; TRANSPORTING; WEAPONS

The reaction device (2) contains passages and an exchange surface at least partially coated with an active material. Means of displacement allow the passages to be positioned so they are supplied cyclically with an oxidant gas, an inert gas and a reducing gas. There are means of supplying an oxidizing gas (8) and removing (9) the hot gas resulting from oxidation leaving the passages. There are means of supplying a reducing gas to the passages which have undergone oxidation and means of removing the gas resulting from reduction, essentially carbon dioxide and water, as it leaves the passages. There are means of supplying and removing an inert balancing gas through the passages. The inert gas is carbon dioxide and water vapor. The reaction device is driven in rotation around its longitudinal axis (3) and is in the form of a section of a cylinder. The ends of each passage open into the two parallel circular faces (5, 6) of the cylinder. The reaction device is a cylindrical monolith containing channels. Each means of supply and removal has openings (14) placed opposite the parallel circular faces of the reaction device so each opening opens on one angular section allowing circulation of the gas between the means of supply and the associated means of removal through the passages of the reaction device. In addition the device has seals (20, 22, 25) which are radial and circular joints placed between the means of supply and/or removal and the parallel faces of the reaction device. The reaction device is divided by radial dividers (7) extending parallel to the longitudinal axis and over the whole height of the reaction device. The seals are mounted on the edges of the radial dividers and circular joints are mounted around the circumference of the circular faces. The inert balancing gas is held at a pressure greater than that of the oxidizing and reducing gases. The reaction device is placed in a coaxial cylindrical envelope closed by two flat plates in which are cut openings for the means of supply and removal. An Independent claim is included a process for generating energy using the device described above in which the compressed oxidant gas, reducing gas and inert gases are introduced continuously into their respective means of supply and a hot gas, a gas which is essentially carbon dioxide and water and the inert gas are recovered and the carbon dioxide and water are separated. L'invention concerne un dispositif pour la production d'un gaz chaud par oxydation d'un matériau actif, comprenant un organe de réaction (2) pourvu de passages (32) et d'une surface d'échange recouverte, au moins en partie, par un matériau actif, lesdits passages permettant à un gaz de circuler et d'être mis en contact avec ledit matériau actif, l'organe de réaction étant rattaché à un moyen de déplacement (30) permettant le positionnement de chaque passage dudit organe de réaction dans des positions d'oxydation, des positions de réduction ou des positions de balayage, positions dans lesquelles un gaz respectivement oxydant, réducteur ou inerte circule dans ledit passage, de manière que le matériau actif dans chaque passage se retrouve, après un balayage à l'aide du gaz inerte, alternativement sous une forme réduite et sous une forme oxydée.