| 摘要 |
<p>The present invention is directed to a sparger system comprising sparger 6 and sparger 8 provided for appropriately feeding reactant streams to a fluidised bed reactor 4 of hydrocarbon partial oxidation processes that are retrofitted to selectively recover and recycle unreacted hydrocarbons. A mixture of air and oxygen is supplied to the bottom sparger 6. A mixture of fresh hydrocarbon feed, recycled hydrocarbon, and fresh oxygen feed is supplied to the sparger 8. As a result of the sparger system, the reactor productivity and selectivity is enhanced while employing only two spargers. Also, the capital cost required for retrofitting existing sparging equipment is minimized, while at the same time, the desired fluidization and catalyst oxidation characteristics are achieved without the formation of flammable mixtures within the sparging system. <IMAGE></p> |
