| 主权项 |
1. A process for converting a hydrocarbon feedstock into olefins and BTX, said converting process comprising the steps of:
feeding a hydrocarbon feedstock to a first hydrocracking unit; feeding effluent from said first hydrocracking unit to a first separation section; separating said effluent in said first separation section into one or more streams from the group including a stream comprising hydrogen, a stream comprising methane, a stream comprising ethane, a stream comprising propane, a stream comprising butanes, a stream comprising C1-minus, a stream comprising C2-minus, a stream comprising C3-minus, a stream comprising C4-minus, a stream comprising C1-C2, a stream comprising C1-C3, a stream comprising C1-C4, a stream comprising C2-C3, a stream comprising C2-C4, a stream comprising C3-C4 and a stream comprising C5+; feeding said stream comprising propane to at least one dehydrogenation unit from the group including a combined propane/butanes dehydrogenation unit (PDH-BDH) and a propane dehydrogenation unit (PDH); feeding at least one stream from the group including said stream comprising C2-minus, said stream comprising ethane, and said stream comprising C1-C2 to a gas steam cracking unit and/or to a second separation unit; and feeding at least one of effluents from said dehydrogenation unit(s) and said gas steam cracking unit to said second separation section. |
