| 摘要 |
<p>A method and reactor system for catalytic hydrotreating and hydrocracking of liquid hydrocarbon feedstocks in order to produce a feedstock having a reduced contaminant level are disclosed. A feedstock (11) is introduced into a first reaction zone (18) of a reactor system (10) having a plurality of successive reaction zones, each having a hydroprocessing bed therein. Hydrogen gas (14) is introduced into the reactor system for flow through and over the catalyst beds in contact with the liquid in order to react with the feedstock producing an effluent. A stream having the same composition as the feedstock introduced into the first reaction zone is introduced into at least one quench stream downstream of the first reaction zone. Quench gas (42) is injected into each quench zone in an amount sufficient in combination with the effluent from the immediately upstream reaction zone to reduce the temperature of the effluent to a predetermined range. An effluent product (30) is recovered from the last reaction zone (28).</p> |
