| 摘要 |
<p>An integrated process for increasing C6 to C8 aromatics content in reformate prepared from C9+ aromatics-containing feed comprises: 1) pretreating a raw naphtha feedstream containing C¿9?+ aromatics and sulfur by contacting with a) a hydrodesulfurization catalyst under hydrodesulfurization conditions to produce a hydrodesulfurized feedstream and thereafter b) cascading said hydrodesulfurized feedstream over a noble metal- and/or Group VIA metal-containing porous crystalline inorganic oxide catalyst comprising pores having openings of 12-member rings under conditions sufficient to effect conversion of C¿9?+ aromatics, thereby providing a pretreated effluent stream of enhanced C¿8?- aromatics content relative to that obtained in the absence of said cascading; and 2) reforming at least a portion of said pretreated effluent stream to provide a reformate stream.</p> |
