Products from FCC processing of high saturates and low heteroatom feeds
Compositions based on effluents and/or products from FCC processing of a high saturate content, low heteroatom content feedstock are provided. By processing a high saturate content, low heteroatom content feed under various types of FCC conditions, a variety of compositions with unexpected compositional features and/or unexpected properties can be formed. The unexpected compositional features and/or unexpected properties can correspond to features and/or properties associated with one or more of the total effluent, a naphtha boiling range portion of effluent, a distillate or light cycle oil boiling range portion of the effluent, and/or a bottoms portion of the effluent.
1. A naphtha boiling range composition comprising a T90 distillation point of 221° C. or less, an aromatics content of 10 wt % to 23 wt %, a weight ratio of paraffins to aromatics of 1.4 or more, a sulfur content of 30 wppm or less, and a weight ratio of mercaptan sulfur to total sulfur of 0.10 to 0.90.
2. The composition of claim 1 , wherein the composition comprises a weight ratio of isoparaffins to aromatics of 1.3 or more.
3. The composition of claim 1 , wherein the composition comprises a hydrogen content of 13.3 wt % or more.
4. The composition of claim 1 , wherein the composition comprises a research octane number (RON) of 85 or more.
5. The composition of claim 1 , wherein the composition comprises a research octane number (RON) of 89 or more, or wherein the composition comprises a (RON+MON)/2 value of 85 or more, or a combination thereof.
6. The composition of claim 1 , wherein the composition comprises a T90 distillation point of 200° C. or less.
7. The composition of claim 1 , wherein the composition comprises a nitrogen content of 5.0 wppm or less.
8. A total effluent from an FCC process comprising a combined weight of a naphtha boiling range portion and a distillate boiling range portion of 65 wt % or more relative to a weight of the total effluent, 10 wt % or more of C 4 hydrocarbons relative to the weight of the total effluent, and a ratio of C 3 olefins to total C 3 hydrocarbons of 0.84 or more,
wherein the naphtha boiling range portion comprises a T90 distillation point of 221° C. or less, an aromatics content of 10 wt % to 23 wt % relative to a weight of the naphtha boiling range portion, a weight ratio of paraffins to aromatics of 1.4 or more, a sulfur content of 30 wppm or less, and a weight ratio of mercaptan sulfur to total sulfur of 0.10 to 0.90.
9. The total effluent of claim 8 , wherein the total effluent comprises 12 wt % or less of 340° C.+ bottoms.
10. The total effluent of claim 8 , wherein the naphtha boiling range portion comprises 60 wt % or more of the total effluent.
11. The total effluent of claim 8 , wherein the total effluent comprises 1.5 wt % or less of H 2 , C 1 hydrocarbons, and C 2 hydrocarbons.
12. The total effluent of claim 8 , wherein the total effluent comprises a combined weight of the naphtha boiling range portion and the distillate boiling range portion of 72 wt % or more.
13. The total effluent of claim 8 , wherein the total effluent comprises a ratio of C 2 olefins to total C 2 hydrocarbons of 0.54 or more.
14. A method for performing fluid catalytic cracking, comprising:
exposing a feed to a cracking catalyst under fluid catalytic cracking conditions comprising 60 wt % or more conversion relative to 221° C. to form coke and a total effluent,
the feed comprising 25 wt % or more of a vacuum gas oil boiling range fraction,
wherein the vacuum gas oil boiling range fraction comprises 10 wt % or more of aromatics, a naphthenes to aromatics weight ratio of 1.5 or higher, and a sulfur content of 1200 wppm or less,
and wherein the total effluent comprises a naphtha boiling range portion, the naphtha boiling range portion comprising a sulfur content of 30 wppm or less relative to a weight of the naphtha boiling range portion, a ratio of mercaptan sulfur to total sulfur of 0.1 to 0.9, an aromatics content of 10 wt % or more relative to a weight of the naphtha boiling range portion, and a weight ratio of paraffins to aromatics of 1.0 or more.
15. The method of claim 14 , wherein a combined yield of coke, H 2 , C 1 hydrocarbons, and C 2 hydrocarbons of 5.0 wt % or less relative to a weight of the feed.
16. The method of claim 14 , wherein the feed comprises an atmospheric resid, the atmospheric resid comprising the 25 wt % or more of the vacuum gas oil boiling range fraction.