Process for hydrocracking hydrocarbon-containing petroleum feeds in the presence of a catalyst comprising at least one NU-85, NU-86 or NU-87 zeolite

Abstract

The invention provides a process for hydrocracking hydrocarbon-containing petroleum feeds in the presence of a catalyst comprising a support containing at least one matrix, and at least one zeolite selected from the group, formed by NU-85, NU-86 and NU-87 zeolites., said catalyst further comprising, at least one metal selected from the group formed by metals from group VIB and VIII of the periodic table, optionally at least one group VIIA element, and optionally phosphorous

1 . A process for hydrocracking hydrocarbon-containing feeds in the presence of a catalyst comprising at least one metal selected from the group formed by metals from groups VIB and VIII of the periodic table, at least one matrix and at least one zeolite seleted from NU-85, NU-86 and NU-87 zeolite.  
     
     
         2 . A process according to  claim 1  in which the catalyst comprises a NU-85 zeolite.  
     
     
         3 . A process according to  claim 1  in which the catalyst comprises a NU-86 zeolite  
     
     
         4 . A process according to  claim 1  in which the catalyst comprises a NU-87 zeolite  
     
     
         5 . A process according to anyone of  claim 1  to  4 , characterized in that the catalyst also contains phosphorous.  
     
     
         6 . A process according to any one of  claim 1  to  5 , characterized in that the catalyst also comprises at least one element selected from group VIIA of the periodic table.  
     
     
         7 . A process according to any one of  claims 1  to  6 , in which the catalyst comprises, by weight with respect to the catalyst: 
 0.1 % to 60% of at least one metal selected from the group formed by group VIB and group VIII metals;  
 0.1 % to 90% of at least one zeolite selected from NU-85, NU-86 and NT-87 zeolite;  
 0.1% to 99% of at least one amorphous or low crystallinity mineral matrix;  
 0 to 20% of phosphorous;  
 0 to 20% of at least one element selected from group VIIA.  
 
     
     
         8 . A process according to any one of  claims 1  to  7 , in which a prior catalyst sulphurisation treatment is carried out.  
     
     
         9 . A process according to any one of  claims 1  to  8 , in which the feed is constituted by at least 80% by volume of compounds with a boiling point of at least 350° C.  
     
     
         10 . A process according to any one of  claims 1  to  9 , in which the temperature is over 200° C., the pressure is over 0.1 MPa, the hydrogen recycle ratio is over 50 normal liters of hydrogen per liter of feed, and the HSV is in the range 0. 1 to 20 h − .  
     
     
         11 . A process according to any one of  claims 1  to  9 , in which the temperature is 230° C. or more, the pressure is over 5 MPa, the quantity of hydrogen is over 100 normal liters of hydrogen per liter of feed, and the hourly space velocity is in the range 0.15 to 10 h − .  
     
     
         12 . A process according to  claim 11 , in which a prior hydrotreatment step is carried out at a temperature in the range 350° C. to 460° C., at a total pressure of at least 3 MPa, with an hourly space velocity in the range 0.1 to 5 h 31 , with a quantity of hydrogen of at least 100 Nl/Nl of feed and in the presence of a hydrotreatment catalyst.