| 摘要 |
Either atmospheric or superatmospheric pressure high temperature gases, e.g. from a fluidized bed reactor, are filtered in an upright outer vessel having at least one upright inner vessel within it. The inner vessel has gas-impervious peripheral walls and divides the gas volume in the outer vessel into clean and dirty gas volumes. A number of monolithic ceramic filter elements are mounted in openings disposed in the peripheral walls of the inner vessel and allow clean gas to flow through the filter elements from the dirty gas volume to the clean gas volume. The peripheral wall includes cooling panels formed of cooling tubes, which can lower the temperature of the filter mounting structure significantly. The cooling tubes are normally protected by refractory material from direct contact with the gases so that only the mounting structures are cooled (i.e. the gas is not significantly cooled); however the structure can also be used to cool the gas if a high throughput of cooling or other cooling fluid passes through the cooling tubes, and/or direct contact between cooled components and the gas is provided. |
