| 摘要 |
<p>A process for removing sulfur oxides from a gas by the steps comprising: (a) contacting said gas with an acceptor at acceptance conditions which reacts with and retains said sulfur oxides, said acceptor comprising calcium oxide deposited on an aluminum oxide or magnesium oxide and aluminum oxide support so as to provide essentially a single complete monolayer of calcium on said support, and (b) removing said retained sulfur oxides from the acceptor by contacting the acceptor with a reducing gas comprising hydrogen at reduction conditions. The process has particular utility in the FCC process in which the acceptor may be circulated with the FCC catalyst.</p> |
