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US4665250A
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Process for converting light olefins to gasoline, distillate and lube range hydrocarbons
Assignee: Mobil Oil AS
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Filing: 1986-02-24
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Granted: 1987-05-12
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Expires: 2006-02-24
Abstract
Abstract A process is provided for converting light olefin to gasoline, distillate and lube range hydrocarbons which comprises contacting a lower olefin feedstock with acidic zeolite ZSM-48 at elevated pressure and temperature to provide product containing gasoline and distillate range hydrocarbons and a 650° F.+ lube fraction.
Inventors
- 👤 Cynthia T. W. Chu
- 👤 Ernest W. Valyocsik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:26
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/703; C; C07; C07C; C07C2/00; C10; C10G; C10G50/00; C10G50/02; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
142 words
A process for converting light olefin to gasoline, distillate and lube range hydrocarbons which comprises contacting an olefin feedstock containing predominantly lower olefin with acidic zeolite ZSM-48, wherein the composition of the as-synthesized ZSM-48 in terms of moles of anhydrous oxides per 100 moles of silica is (0.05 to 5) R.sub.2 :(0.1 to 10) M.sub.2/n O:(0.2 to 1) Me.sub.2 O.sub.3 :(100)SiO.sub.2 wherein R is a cation derived from an organic directing agent selected from the group consisting of a mixture of a C 2-12 alkyl-amine and a tetramethylammonium compound and a linear diquaternary ammonium compound, M is a cation of valence n and Me 2 O 3 is the oxide of at least one metal selected from aluminum, gallium and iron, at elevated pressure and temperature to provide a product containing gasoline and distillate range hydrocarbons at a 650° F.+ lube fraction.
Claim 2
Dependent Claim
142 words
A process for converting light olefin to gasoline, distillate and lube range hydrocarbons which comprises contacting an olefin feedstock containing predominantly lower olefin with acidic zeolite ZSM-48, wherein the composition of the as-synthesized ZSM-48 in terms of moles of anhydrous oxides per 100 moles of silica is (0.05 to 5) R.sub.2 :(0.1 to 10) M.sub.2/n O:(0.2 to 1) Me.sub.2 O.sub.3 :(100)SiO.sub.2 wherein R is a cation derived from an organic directing agent selected from the group consisting of a mixture of a C 2-12 alkyl-amine and a tetramethylammonium compound and a linear diquaternary ammonium compound, M is a cation of valence n and Me 2 O 3 is the oxide of at least one metal selected from aluminum, gallium and iron, at elevated pressure and temperature to provide a product containing gasoline and distillate range hydrocarbons at a 650° F.+ lube fraction.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein the olefin is one or a mixture of C 2-4 olefins.
Claim 4
Dependent Claim
10 words
The process of claim 1 wherein the feedstock contains propylene.
Claim 5
Dependent Claim
22 words
The process of claim 1 wherein the gasoline and/or distillate range hdyrocarbons are separated from the 650° F.+ lube fraction and recycled.
Claim 6
Dependent Claim
143 words
The process of claim 1 wherein the organic directing agent is a linear diquaternary ammonium compound is expressed by the formula: [(R').sub.3 N.sup.+ (Z).sub.m N.sup.+ (R').sub.3 ](X.sup.-).sub.2 wherein R' is aklyl of from 1 to 20 carbon atoms, heteroalkyl of from 1 to 20 carbon atoms, aryl, heteroaryl, cycloalkyl of from 3 to 6 carbon atoms, cycloheteroalkyl of from 3 to 6 carbon atoms, or combinations thereof; N is the quadricoordinte element nitrogen, or the heteroatom nitrogen in an alicyclic, heteroalicyclic or heteroaromatic structure X is an anion; Z is a bridging member selected from the group consisting of alkyl of from 1 to 20 carbon atoms, alkenyl of from 2 to 20 carbon atoms, aryl, heteroalkyl of from 1 to 20 carbon atoms, heteroalkenyl of from 2 to 20 carbon atoms and heteroaryl; and m is 5, 6, 8, 9 or 10.
Claim 7
Dependent Claim
21 words
The process of claim 5 wherein X is halide and R' and Z are alkyl of 1 to 4 carbon atoms.
Claim 8
Dependent Claim
17 words
The process of claim 6 wherein X is iodide or bromide, and R' and Z are methyl.
Claim 9
Dependent Claim
19 words
The process of claim 1 carried out at about a temperature of from 350° F. to about 600° F.
Claim 10
Dependent Claim
19 words
The process of claim 1 carried out at a temperature of from about 400° F. to about 500° F.
Claim 11
Dependent Claim
19 words
The process of claim 1 carried out at a pressure of from about 200 psig to about 2000 psig.
Claim 12
Dependent Claim
19 words
The process of claim 1 carried out at a pressure of from about 200 psig to about 1000 psig.
Claim 13
Dependent Claim
20 words
The process of claim 1 carried out at a weight hourly space velocity of from about 0.1 to about 10.
Claim 14
Dependent Claim
20 words
The process of claim 1 carried out at a weight hourly space velocity of from about 0.2 to about 4.
Claim 15
Dependent Claim
39 words
The process of claim 1 carried out at a temperature of from about 350° F. to about 600° F., a pressure of at least 200 psig, and a weight hourly space velocity of from about 0.1 to about 10.
Claim 16
Dependent Claim
43 words
The process of claim 1 carried out at a temperature of from about 400° F. to about 500° F., a pressure of from about 700 psig to about 1000 psig and a weight hourly space velocity of from about 0.2 to about 4.
Claim 17
Dependent Claim
102 words
A process for converting light olefin to gasoline, distillate and lube range hydrocarbons which comprises contacting an olefin feedstock containing predominantly lower olefin with a catalyst consisting essentially of an acidic crystalline metallo-silicate zeolite exhibiting a characteristic X-ray diffraction pattern as shown in Table I of the specification at elevated pressure and temperature to provide a product containing gasoline and distillate range hydrocarbons and a 650° F.+ lube fraction, said zeolite containing at least one trivalent metal oxide selected from oxides of aluminum, gallium, iron and boron and having a molar ratio of silica to said trivalent metal oxide less than 500.
Claim 18
Dependent Claim
102 words
A process for converting light olefin to gasoline, distillate and lube range hydrocarbons which comprises contacting an olefin feedstock containing predominantly lower olefin with a catalyst consisting essentially of an acidic crystalline metallo-silicate zeolite exhibiting a characteristic X-ray diffraction pattern as shown in Table I of the specification at elevated pressure and temperature to provide a product containing gasoline and distillate range hydrocarbons and a 650° F.+ lube fraction, said zeolite containing at least one trivalent metal oxide selected from oxides of aluminum, gallium, iron and boron and having a molar ratio of silica to said trivalent metal oxide less than 500.
Claim 19
Dependent Claim
22 words
The process of claim 16 wherein the 650° F+ lube fraction has a SUS viscosity of at least 173.6 at 100° F.
Claim 20
Dependent Claim
25 words
The process of claim 16 wherein the zeolite consists essentially of alumino-silicate ZSM-48 having a silica-to-alumina molar ratio from about 100 to less than 500.
Claim 21
Dependent Claim
54 words
A process for producing high viscosity lubricant range hydrocarbons from lower olefin feedstock by contacting the feedstock under conversion conditions at elevated temperature up to about 600° F. and pressure greater than 200 psig with an acidic crystalline alumino-silicate zeolite having the structure of ZSM-48 and having a silica-to-alumina molar ratio less than 500.
Claim 22
Dependent Claim
54 words
A process for producing high viscosity lubricant range hydrocarbons from lower olefin feedstock by contacting the feedstock under conversion conditions at elevated temperature up to about 600° F. and pressure greater than 200 psig with an acidic crystalline alumino-silicate zeolite having the structure of ZSM-48 and having a silica-to-alumina molar ratio less than 500.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |