US3617501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated process for refining whole crude oil
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1968-09-06
•
Granted: 1971-11-02
•
Expires: 1988-09-06
Abstract
Abstract The disclosure relates to a process for the refining of whole crude oil to produce a maximum quantity of gasoline and distillate products and a minimum quantity of industrial fuel oil. The process features hydrotreating of whole crude oil as the first major processing step.
Inventors
- 👤 Jackson Eng
- 👤 John L Tiedje
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:54
CPC Classifications
C; C10; C10G; C10G69/00; C10G47/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
237 words
An integrated process for producing light naphtha, heavy naphtha and a fuel oil fraction from whole petroleum crude oil comprising the steps of: a. passing said whole petroleum crude oil containing sulfur, nitrogen and metal impurities directly to a hydrofining zone; b. hydrofining said crude oil in the presence of a hydrofining catalyst and hydrogen; c. passing hydrofined crude oil to an atmospheric distillation zone; d. distilling an admixture of said hydrofined crude oil with hydrocracked products as hereinafter identified; e. recovering a light naphtha fraction from said distillation zone, said fraction being essentially free of mercaptans; f. recovering a low sulfur, heavy naphtha reformer feed stock fraction from said distillation zone; g. passing a low sulfur, low nitrogen atmospheric distillation bottoms from said distillation zone to a vacuum distillation zone; h. recovering a low sulfur fuel oil and cracking feed fraction from said vacuum distillation zone; i. passing said cracking feed fraction to a hydrocracking zone; j. hydrocracking said fraction at a temperature in the range of 650* to 750* F. and a pressure in the range of 1,000 to 3,000 p.s.i.g. in the presence of 5,000 to 10,000 s.c.f./B of hydrogen and a catalyst comprising a metal hydrogenation component and a crystalline aluminosilicate zeolite; k. recovering hydrocracked products comprising a major amount of naphtha, and l. passing said hydrocracked products to the atmospheric distillation zone of step (c) to provide said admixture of step (d).
Claim 2
Dependent Claim
15 words
Process according to claim 11, in which the hydrofining catalyst is cobalt molybdate on alumina.
Claim 3
Dependent Claim
24 words
Process according to claim 1, in which said cracking feed fraction of step (i) boils in the range of about 650* to 950* F.
Claim 4
Dependent Claim
23 words
Process according to claim 1, in which the catalyst of step (j) comprises a nickel-tungsten hydrogenation component on a support comprising zeolite Y.
Claim 5
Dependent Claim
227 words
An integrated process for producing light naphtha and heavy naphtha from whole petroleum crude oil comprising the steps of: a. passing said whole petroleum crude oil containing sulfur, nitrogen and metal impurities directly to a hydrofining zone; b. hydrofining said crude oil in the presence of a hydrofining catalyst and hydrogen; c. passing hydrofined crude oil to an atmospheric distillation zone; d. distilling an admixture of said hydrofined crude oil with cracked products as hereinafter identified; e. recovering a light naphtha fraction from said distillation zone, said fraction being essentially free of mercaptans; f. recovering a low sulfur, heavy naphtha reformer feed stock fraction from said distillation zone; g. passing a low sulfur, low nitrogen cracking feed fraction from said distillation zone to a cracking zone; h. catalytically cracking said fraction at a temperature in the range of 900* to 950* F. and a pressure in the range of 5 to 25 p.s.i.g. in the presence of a cracking catalyst comprising a crystalline aluminosilicate zeolite component composited with an amorphous silica alumina component; i. recovering catalytically cracked products; j. passing a major proportion of said cracked products to the hydrofining zone of step (b) for saturation of olefins in the cracked products, and k. passing a minor proportion of said cracked products to the atmospheric distillation zone of step (c) to provide said admixture of step (d).
Claim 6
Dependent Claim
28 words
Process according to claim 6 in which the hydrofining catalyst of step (b) is nickel molybdate on a support comprising alumina and 1 and 10 weight percent silica.
Claim 7
Dependent Claim
191 words
An integrated process for producing light naphtha, hEavy naphtha and fuel oil from whole petroleum crude oil comprising the steps of: a. passing said whole petroleum crude oil containing sulfur, nitrogen and metal impurities directly to a hydrofining zone; b. hydrofining said crude oil in the presence of a hydrofining catalyst and hydrogen; c, passing hydrofined crude oil to an atmospheric distillation zone; d. distilling an admixture of said hydrofined crude oil with cracked products as hereinafter identified; e. recovering a light naphtha fraction from said distillation zone, and fraction being essentially free of mercaptans; f. recovering a low sulfur, heavy naphtha reformer feed stock fraction from said distillation zone; g. passing a low sulfur, low nitrogen atmospheric distillation bottoms from said distillation zone to a vacuum distillation zone; h. recovering a low sulfur fuel oil and a cracking feed fraction from said vacuum distillation zone; i. cracking the cracking feed fraction of step (h) in a cracking zone in the presence of a cracking catalyst; j. passing at least a part of the cracked products to the atmospheric distillation zone of step (c) to provide said admixture of step (d).
References Cited (Backward Citations)
US2671754A
Cited
US2944013A
Cited
US3050458A
Cited
US3098029A
Cited
US3105811A
Cited
US3132087A
Cited
US3256178A
Cited
US3506567A
Cited
US3511771A
Cited
US3546094A
Cited
US3535226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |