| 摘要 |
<p>Systems and methods for upgrading hydrocarbons are provided. A first hydrocarbon can be cracked in the presence of one or more catalysts to provide a first cracked mixture containing one or more light cycle oils (LCOs) and one or more coked catalysts. A second hydrocarbon, containing one or more C4 to C20 hydrocarbons and having a Research Octane Number of less than 88, can be mixed with the one or more catalysts to provide a first mixture at a second temperature. A third hydrocarbon can be combined with the first mixture to provide a second mixture. The second mixture can be cracked to provide a second cracked mixture containing propylene, one or more mixed hydrocarbons in the gasoline boiling range having a Research Octane Number greater than 88, and one or more coked catalysts. The first cracked mixture and second cracked mixture can be combined to provide a third mixture.</p> |
