Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Bertrand Fanget

Vincent Coupard

Christophe Boyer

Alexandre Pagot

Abdelhakim Koudil

Joana Fernandes

Romain Corroyer

Sylvie Lacombe

Ludovic Raynal

Bogdan Harbuzaru

Joana Fernandez

The invention relates to a process for the catalytic cracking of a gasoline feedstock for the production of light olefins, in which said gasoline feedstock is brought into contact with a catalyst comprising at least one zeolite NU-86, alone or in a mixture with at least one other zeolite, at a temperature comprised between 500 and 700&#xb0; C., at an absolute pressure comprised between 10 and 60 MPa, and with a contact time of the feedstock on said catalyst comprised between 10 milliseconds and 100 seconds.

Use of zeolite NU-86 for naphtha catalytic cracking

The present invention concerns a process for the production of light olefins and BTX using a catalytic cracking unit, NCC, processing a naphtha type feed, and an aromatics complex. It can be used to exploit the synergies between these two units. The thermal balance of the NCC, which is intrinsically deficient in coke, is resolved by the optimal use of heat from the reforming furnaces in order to preheat the feed for the NCC, and by introducing at least a portion of the raffinate obtained from the aromatics complex as a mixture with the naphtha.

Process for the production of light olefins and BTX using a catalytic cracking unit, NCC, processing a naphtha type feed, a catalytic reforming unit and an aromatics complex

The present invention relates to the FCC units processing heavy feedstocks enriched with hydrogen, such as for example a highly hydrotreated VGO, or the unconverted part at the end of hydrocracking this same type of VGO feedstock, feedstocks which have the characteristic of cracking to light olefins such as ethylene and propylene. The integration of an FCC with an aromatic complex allows the recovery by the aromatic complex of the BTX formed in the FCC, and the recovery by the FCC from the flow at the bottom of the column, of heavy aromatics from the aromatic complex.

Process for production of light olefins and BTX using an FCC unit processing a heavy feedstock of the highly hydrotreated VGO type, coupled with a catalytic reforming unit and an aromatic complex processing a naphtha-type feedstock

A device located between two successive granular beds () and () for injecting a secondary fluid can produce and distribute a polyphase mixture between said secondary fluid and a fluid or mixture of fluids originating from the upper granular bed and comprises a chamber for injecting a secondary fluid (), the secondary fluid being injected into said device, and means () for bringing said secondary fluid into contact with at least a portion of the fluid or mixture of fluids originating from the upper granular bed () and for simultaneous distribution () of the mixture resulting from said contact to the lower granular bed ().

Device for injecting a fluid located between two successive beds to simultaneously produce and distribute a polyphase mixture

A device for producing and distributing a polyphase mixture between two fluids comprises a chamber for the passage of a first fluid, said chamber being pierced by perforated tubes or conduits to pass a second fluid in a different physical state than the first fluid or not miscible with the first fluid through the chamber, said tubes being pierced by at least one orifice allowing passage of the first fluid and mixing between the fluids via the tubes. The second fluid is injected upstream of said device and the first fluid is injected into said device.

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Vienne, France

Bertrand Fanget