Systems and processes for production of fuel and fuel blends
Systems and processes for the production of fuel and fuel blends involve the production of fuels for blending with one or more alcohols such as ethanol and/or butanol. A method for producing a fuel blend includes blending a light distillate product from an oil refinery with butanol. The fuel blending can be at the oil refinery.
1. A method for producing a blended gasoline, comprising:
(a) operating an oil refinery to produce a light distillate product from crude oil;
(b) feeding a feedstock to a fluid catalytic cracker (FCC) unit, wherein the feedstock is derived from the crude oil, wherein the FCC unit is operated at a first cut-point temperature of from about 350° F. to about 420° F. to produce products including a first FCC product and a second FCC product, wherein the light distillate product includes the first FCC product, and wherein the middle distillate product includes the second FCC product;
(c) treating the first FCC product in a hydrotreater unit; and
(d) blending the light distillate product with an amount of butanol to produce a butanol blended gasoline,
wherein the light distillate product includes an amount of a light naphtha product comprising pentane, butane, or a mixture thereof, the amount of the light naphtha product being greater than any amount of light naphtha product included in a different light distillate product which is an automotive-grade gasoline free of bioalcohol fuel or which is for blending with an amount of ethanol to produce an automotive-grade blended gasoline.
2. The method of claim 1 , wherein the light distillate product comprises gasoline.
3. The method of claim 1 , wherein the butanol comprises isobutanol.
4. The method of claim 1 , wherein the amount of butanol that is blended with the light distillate product is at least about 10 vol % of the butanol blended gasoline.
5. The method of claim 1 , wherein the amount of butanol that is blended with the light distillate product is from about 10 vol % to about 16 vol % of the butanol blended gasoline.
6. The method of claim 1 , wherein the amount of butanol that is blended with the light distillate product is from about 16 vol % to about 24 vol % of the butanol blended gasoline.
7. The method of claim 1 , wherein the amount of ethanol that is blended with the light distillate product for producing the automotive-grade blended gasoline is not more than about 10 vol % of the automotive-grade blended gasoline.
8. The method of claim 1 , wherein the butanol is blended with the light distillate product at the oil refinery.
9. The method of claim 1 , wherein the butanol blended gasoline is an automotive-grade gasoline.
10. The method of claim 1 , wherein the first cut-point temperature is from about 350° F. to about 400° F.
11. The method of claim 1 , wherein the first cut-point temperature is from about 350° F. to about 380° F.
12. The method of claim 1 , wherein the first cut-point temperature is from about 351° F. to about 373° F.
13. The method of claim 1 , wherein the FCC unit is operated at a second cut-point temperature and wherein the first cut-point temperature is lower than a second cut-point temperature.
14. The method of claim 1 , wherein the middle distillate product comprises diesel fuel.
15. The method of claim 1 , wherein the second FCC product is treated in a hydrotreater unit.