Process and apparatus for separation of components of a gas stream
| DWPI Title: Process for separating e.g. flue gas from power plant, involves establishing net cross-flow of gas mixture including higher and lower density gas components along length of channel, where cross-flow causes spiraling flow in slot in channel |
| Abstract: A process and apparatus for separating a gas mixture comprising providing a slot in a gas separation channel (conceptualized as a laterally elongated Clusius-Dickel column), having a length through which a net cross-flow of the gas mixture may be established; applying a higher temperature to one side of the channel and a lower temperature on an opposite side of the channel thereby causing thermal-diffusion and buoyant-convection flow to occur in the slot; and establishing a net cross-flow of a gas mixture comprising at least one higher density gas component and at least one lower density gas component along the length of the slot, wherein the cross-flow causes, in combination with the convection flow, a spiraling flow in the slot; and wherein the spiral flow causes an increasing amount of separation of the higher density gas from the lower density gas along the length of the channel. The process may use one or more slots and/or channels. |
| Use: Process for separating a flowing gas mixture e.g. air, flue gas, carbon dioxide and isotopes mixture (all claimed), from a power plant. |
| Advantage: The process allows the net cross-flow of the gas mixture comprising the higher and lower density gas components to be established along length of the channel to cause the spiraling flow in the slot in combination with the buoyant-convection flow, thus increasing an amount of separation of the higher density gas from the lower density gas along the length of the channel, and hence separating the flowing gas mixture at a higher throughput in an efficient, cost-effective and faster manner. |
| Novelty: The process involves causing a first side of a gas separation channel (16) to be at higher temperature, and causing a second side of the channel to be at lower temperature. A net cross-flow of a gas mixture including a higher density gas component and a lower density gas component is established along length (L) of the channel, where the net cross-flow causes a spiraling flow in a slot in the channel in combination with a buoyant-convection flow and the spiraling flow causes an increasing amount of separation of higher density gas from lower density gas along the length. |
| Filed: 8/21/2013 |
| Application Number: US13972187A |
| Tech ID: SD 11634.2 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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