Gasoline upgrading process

Details Gasoline upgrading process Gasoline upgrading process

1993-08-11

1995-03-14

Pal, Asok

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 74, 208211, C10G 4502, C10G 6902, C10G 6300

Patent

active

053974557

ABSTRACT:
Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5 with controlled diffusion characteristics. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha. In favorable cases, using feeds of extended end point such as heavy naphthas with 95 percent points above about 380.degree. F. (about 193.degree. C.), improvements in both product octane and yield relative to the feed may be obtained.

REFERENCES:
patent: 3674680 (1972-07-01), Hoekstra et al.
patent: 3729409 (1973-04-01), Chen
patent: 3759821 (1973-09-01), Brennan et al.
patent: 3767568 (1973-10-01), Chen
patent: 3857780 (1974-12-01), Gustafson
patent: 3957625 (1976-05-01), Orkin
patent: 4049542 (1977-09-01), Gibson et al.
patent: 4062762 (1977-12-01), Howard et al.
patent: 4441990 (1984-04-01), Huang
patent: 4447314 (1984-05-01), Banta
patent: 4711710 (1987-12-01), Chen et al.
patent: 4753720 (1988-06-01), Morrison
patent: 4827076 (1989-09-01), Fokayeff et al.
patent: 4908120 (1990-03-01), Bowes et al.
patent: 5143596 (1992-09-01), Maxwell et al.
Contal. Rev.-Sci. Eng., 28 (2&3), 194-197 (1986).

Affiliated with

Also associated with

Rating

Gasoline upgrading process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gasoline upgrading process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gasoline upgrading process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-711482