| 摘要 |
A method of radiant cooling of a product gas mass stream discharged from a gasification reactor and loaded with particles in a cylindrical radiant cooler with a radiant cooling casing comprises the steps of subdividing the product gas mass stream into concentric cylindrical layer streams by cylindrical radiant cooling walls arranged at a distance from the radiant cooling casing, adjusting layer thickness of the cylindrical layer streams to provide a high radiant heat exchange, and cooling regions of the product gas mass stream which flow to the radiant cooling walls in a pre-cooling region to a temperature caking of the particles. A radiant cooler for radiant cooling of a product gas mass quantity from a gasification reactor, comprises a cylindrical radiant cooling casing having an axis, means forming a product gas inlet for supplying the product gas mass stream and an outlet for a radiant-cooled product gas, additional radiant cooling walls located in the region of the radiant cooling casing, the additional radiant cooling walls being formed as cylindrical radiant cooling walls and arranged in a flow direction of the product gas after the pre-cooling region concentrically relative to one another and at a distance from the radiant cooling casing to form cylindrical layer streams.
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