| 摘要 |
A catalytic hydrocracking process which simultaneously hydroprocesses two feedstocks to provide higher liquid product yields and increase the quality of the liquid products. A first feedstock is passed to a denitrification and desulfurization reaction zone to produce a stream which is in turn passed to a hot, high pressure stripper utilizing a hot, hydrogen-rich stripping gas to produce a first vapor stream and a first liquid stream. At least a portion of the first liquid stream is passed to a hydrocracking zone. A second feedstock having an average boiling point lower than the first feedstock in one embodiment is passed into an upper end of the hot, high pressure stripper to serve as reflux and in another embodiment is passed to an intermediate location in the denitrification and desulfurization reaction zone to serve as quench.
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