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| Number | Title | Issue Date |
| 4091076 | Method of removing sulfur emissions from a fluidized-bed combustion process Alkali metal or alkaline earth metal oxides are impregnated within refractory support material such as alumina and introduced into a fluidized-bed process for the combustion of coal. Sulfur dioxide produced during combustion reacts with the metal oxide to... | 05/23/1978 |
