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US4089775A Expired / Lapsed US ⏱️ 0.0 years remaining

Low pour middle distillates from wide-cut petroleum fractions

Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1976-12-27
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Granted: 1978-05-16
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Expires: 1996-12-27
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Abstract

Abstract A process for simultaneously desulfurizing and dewaxing raw, untreated, high sulfur-containing wide-cut petroleum oil fractions to produce desulfurized middle distillate oils of low pour point with a minimum cracking of the raw fraction to gases which comprises contacting the raw fraction with hydrogen and a catalyst comprising a hydrogenating component and faujasite on an amorphous support. A particularly preferred catalyst consists of 95 wt.% based on total catalyst of NiO/MoO3 on an amorphous silica/alumina support and 5 wt.% of nickel-exchanged faujasite.

Inventors

  • 👤 Dietmar Berger
  • 👤 Jackson Eng

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 01:54
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/16; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/12; C10G45/58; C10G45/60; C10G45/64

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 157 words
A process for simultaneously desulfurizing and dewaxing a raw, untreated, high sulfur-containing, wide-cut petroleum oil feed containing a middle distillate fraction which comprises contacting said feed and hydrogen with a catalyst comprising a hydrogenating component on a mixture of faujasite and amorphous silica/alumina support, said hydrogenating component comprising a metal oxide or metal sulfide of a Group VI-B metal, Group VIII metal or mixture thereof wherein the amount of faujasite in said mixture is from about 0.5 to 30 wt.% said contacting being carried out under mild hydrocracking conditions including a temperature within the range of from about 650° to 850° F and a hydrogen partial pressure ranging between from about 750 to 2,000 psig to produce a low pour point middle distillate fraction product in an amount at least equal to the amount of said fraction present in said feed and having a sulfur and wax content lower than said middle distillate fraction of said feed.
Claim 2
Dependent Claim 157 words
A process for simultaneously desulfurizing and dewaxing a raw, untreated, high sulfur-containing, wide-cut petroleum oil feed containing a middle distillate fraction which comprises contacting said feed and hydrogen with a catalyst comprising a hydrogenating component on a mixture of faujasite and amorphous silica/alumina support, said hydrogenating component comprising a metal oxide or metal sulfide of a Group VI-B metal, Group VIII metal or mixture thereof wherein the amount of faujasite in said mixture is from about 0.5 to 30 wt.% said contacting being carried out under mild hydrocracking conditions including a temperature within the range of from about 650° to 850° F and a hydrogen partial pressure ranging between from about 750 to 2,000 psig to produce a low pour point middle distillate fraction product in an amount at least equal to the amount of said fraction present in said feed and having a sulfur and wax content lower than said middle distillate fraction of said feed.
Claim 3
Dependent Claim 21 words
The process of claim 1 wherein said feed is a fraction boiling within the range of from 200° to 900° F.
Claim 4
Dependent Claim 22 words
The process of claim 2 wherein said middle distillate fraction product boils within the range of from about 300° to 625° F.
Claim 5
Dependent Claim 32 words
The process of claim 3 wherein said mild hydrocracking conditions include a hydrogen partial pressure ranging between 1000 to 2,000 psig and a liquid hourly space velocity ranging between 1/2 to 21/2.
Claim 6
Dependent Claim 20 words
The process of claim 4 wherein the amount of faujasite in said mixture ranges from about 1 to 10 wt.%.
Claim 7
Dependent Claim 14 words
The process of claim 5 wherein said feed contains at least 1/2 wt.% sulfur.
Claim 8
Dependent Claim 24 words
The process of claim 5 wherein the amount of said hydrogenating component on said catalyst ranges from 0.25 to 25 wt.% of said catalyst.
Claim 9
Dependent Claim 25 words
The process of claim 6 wherein said hydrogenating component consists essentially of a metal selected from Group VI-B and a metal selected from Group VIII.
Claim 10
Dependent Claim 16 words
The process of claim 7 wherein said hydrogenating component is a mixture of molybdenum and nickel.
Claim 11
Dependent Claim 28 words
The process of claim 9 wherein said middle distillate product has a sulfur content of less than 0.1 wt.% and a pour point of less than 5° F.
Claim 12
Dependent Claim 177 words
A process for simultaneously desulfurizing and hydrodewaxing an untreated, high sulfur-containing wide-cut petroleum distillate feed stock boiling in the range of 200° to 900° F and containing a middle distillate fraction which comprises contacting said untreated feed and hydrogen with a catalyst containing at least one metal hydrogenating component selected from the group consisting of Group VIB metals, Group VIII metals and mixtures thereof on a mixture of faujasite and an amorphous SiO 2 /Al 2 O 3 support, wherein the amount of faujasite in said mixture is from about 0.5 to 30 wt.%, said contacting being carried out under mild hydrocracking conditions including a temperature within the range of from 650° to 850° F and a hydrogen partial pressure between 750 and 2,000 psig to produce a middle distillate product boiling in the range of from about 300° to 625° F in an amount at least equal to the amount of said fraction present in said feed and having a sulfur content, wax content and pour point lower than said middle distillate fraction of said feed.
Claim 13
Dependent Claim 177 words
A process for simultaneously desulfurizing and hydrodewaxing an untreated, high sulfur-containing wide-cut petroleum distillate feed stock boiling in the range of 200° to 900° F and containing a middle distillate fraction which comprises contacting said untreated feed and hydrogen with a catalyst containing at least one metal hydrogenating component selected from the group consisting of Group VIB metals, Group VIII metals and mixtures thereof on a mixture of faujasite and an amorphous SiO 2 /Al 2 O 3 support, wherein the amount of faujasite in said mixture is from about 0.5 to 30 wt.%, said contacting being carried out under mild hydrocracking conditions including a temperature within the range of from 650° to 850° F and a hydrogen partial pressure between 750 and 2,000 psig to produce a middle distillate product boiling in the range of from about 300° to 625° F in an amount at least equal to the amount of said fraction present in said feed and having a sulfur content, wax content and pour point lower than said middle distillate fraction of said feed.
Claim 14
Dependent Claim 17 words
The process of claim 11 wherein said feed contains at least about 1/2 to 2 wt.% sulfur.
Claim 15
Dependent Claim 20 words
The process of claim 12 wherein the amount of faujasite in said mixture is from about 1 to 10 wt.%.
Claim 16
Dependent Claim 30 words
The process of claim 13 wherein said mild hydrocracking conditions include a hydrogen partial pressure ranging between 1,000 to 2,000 psig and a space velocity ranging between 1/2 to 21/2.
Claim 17
Dependent Claim 26 words
The process of claim 14 wherein said hydrogenating component ranges from 0.5 to 25 wt.% of said catalyst and is a mixture of Ni and Mo.
Claim 18
Dependent Claim 16 words
The process of claim 15 wherein said product has a pour point lower than 5° F.
Claim 19
Dependent Claim 15 words
The process of claim 15 wherein said product contains less than about 0.1 wt.% sulfur.
Claim 20
Dependent Claim 19 words
The process of claim 10 wherein said feed boils within the range of from about 200° to 900° F.
Claim 21
Dependent Claim 20 words
The process of claim 18 wherein said feed has a sulfur content ranging between from about 1/2 to 2 wt.%.

References Cited (Backward Citations)

US3861005A Cited
US3730878A Cited
US3926780A Cited
US3804742A Cited
US3849292A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-05-15 1981-11-14 1982-05-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-05-15 1985-11-14 1986-05-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-05-15 1989-11-14 1990-05-16 $7700.00 Window Closed / Lapsed

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