Patent US4136128A successfully refreshed from Google Patents.
US4136128A
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Catalytic alkylation/transalkylation
Assignee: Mobil Oil AS
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Filing: 1977-11-14
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Granted: 1979-01-23
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Expires: 1997-11-14
Abstract
Abstract A process is provided for alkylation or transalkylation of aromatic hydrocarbons by contacting same with an alkylating or transalkylating agent in a reaction zone maintained under alkylation/transalkylation effective conditions and in the presence of a catalyst comprising a crystalline aluminosilicate zeolite ZSM-35 and/or ZSM-38, said catalyst under said conditions being capable of affording a high and selective yield of desired alkyl-aromatic product while maintaining excellent aging properties.
Inventors
- 👤 Werner O. Haag
- 👤 David H. Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:58
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/44; C01B39/445; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/65; B01J29/80; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/86; C07C2/862; C07C2/864; C07C6/00; C07C6/08; C07C6/12; C07C6/123; C07C6/126; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/65; C07C2529/70; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
143 words
A process for effecting alkylation of an aromatic hydrocarbon charge selected from the group consisting of aromatic hydrocarbons and aromatic hydrocarbons containing a non-polar substituent which comprises contacting said hydrocarbon charge with an alkylating agent under conditions effective for accomplishing said alkylation including a reactor inlet temperature between about 37° C. and about 650° C., a reactor pressure between atmospheric and about 3000 psig, a mole ratio of of hydrocarbon charge to alkylating agent in the approximate range of 1:3 to 20:1 and a weight hourly space velocity between about 0.5 hr -1 and 1000 hr -1 in the pressure presence of a catalyst comprising a crystalline aluminosilicate zeolite or a product of thermal treatment thereof at a temperature of from about 100° C. to about 800° C., said zeolite being selected from the group consisting of ZSM-35, ZSM-38 and a combination thereof.
Claim 2
Dependent Claim
143 words
A process for effecting alkylation of an aromatic hydrocarbon charge selected from the group consisting of aromatic hydrocarbons and aromatic hydrocarbons containing a non-polar substituent which comprises contacting said hydrocarbon charge with an alkylating agent under conditions effective for accomplishing said alkylation including a reactor inlet temperature between about 37° C. and about 650° C., a reactor pressure between atmospheric and about 3000 psig, a mole ratio of of hydrocarbon charge to alkylating agent in the approximate range of 1:3 to 20:1 and a weight hourly space velocity between about 0.5 hr -1 and 1000 hr -1 in the pressure presence of a catalyst comprising a crystalline aluminosilicate zeolite or a product of thermal treatment thereof at a temperature of from about 100° C. to about 800° C., said zeolite being selected from the group consisting of ZSM-35, ZSM-38 and a combination thereof.
Claim 3
Dependent Claim
141 words
A process for effecting transalkylation of an aromatic hydrocarbon charge selected from the group consisting of aromatic hydrocarbons and aromatic hydrocarbons containing a non-polar substituent which comprises contacting said hydrocarbon charge with a transalkylating agent under conditions effective for accomplishing said transalkylation including a reactor inlet temperature between about 37° C. and about 650° C., a reactor pressure between atmospheric and about 3000 psig, a mole ratio of hydrocarbon charge to transalkylating agent in the approximate range of 1:3 to 20:1 and a weight hourly space velocity between about 0.5 hr -1 and 1000 hr -1 in the presence of a catalyst comprising a crystalline aluminosilicate zeolite or a product of thermal treatment thereof at a temperature of from about 100° C. to about 800° C., said zeolite being selected from the group consisting of ZSM-35, ZSM-38 and a combination thereof.
Claim 4
Dependent Claim
141 words
A process for effecting transalkylation of an aromatic hydrocarbon charge selected from the group consisting of aromatic hydrocarbons and aromatic hydrocarbons containing a non-polar substituent which comprises contacting said hydrocarbon charge with a transalkylating agent under conditions effective for accomplishing said transalkylation including a reactor inlet temperature between about 37° C. and about 650° C., a reactor pressure between atmospheric and about 3000 psig, a mole ratio of hydrocarbon charge to transalkylating agent in the approximate range of 1:3 to 20:1 and a weight hourly space velocity between about 0.5 hr -1 and 1000 hr -1 in the presence of a catalyst comprising a crystalline aluminosilicate zeolite or a product of thermal treatment thereof at a temperature of from about 100° C. to about 800° C., said zeolite being selected from the group consisting of ZSM-35, ZSM-38 and a combination thereof.
Claim 5
Dependent Claim
12 words
The process of claim 1 wherein the alkylating agent is an olefin.
Claim 6
Dependent Claim
31 words
The process of claim 3 wherein the reactor inlet temperature is between about 37° C. and about 510° C. and the reactor pressure is between about 25 psig and 800 psig.
Claim 7
Dependent Claim
34 words
The process of claim 3 wherein the crystalline aluminosilicate zeolite or the product of thermal treatment thereof is combined in an amount between about 1 and about 99 weight percent in a binder therefor.
Claim 8
Dependent Claim
10 words
The process of claim 5 wherein said binder is alumina.
Claim 9
Dependent Claim
12 words
The process of claim 1 wherein the alkylating agent is an alcohol.
Claim 10
Dependent Claim
31 words
The process of claim 7 wherein the reactor inlet temperature is between about 200° C. and about 650° C. and the reactor pressure is between about 25 psig and 800 psig.
Claim 11
Dependent Claim
34 words
The process of claim 7 wherein the crystalline aluminosilicate zeolite or the product of thermal treatment thereof is combined in an amount between about 1 and about 99 weight percent in a binder therefor.
Claim 12
Dependent Claim
10 words
The process of claim 9 wherein said binder is alumina.
Claim 13
Dependent Claim
31 words
The process of claim 2 wherein the reactor inlet temperature is between about 340° C. and about 595° C. and the reactor pressure is between about 25 psig and 800 psig.
Claim 14
Dependent Claim
34 words
The process of claim 2 wherein the crystalline aluminosilicate zeolite or the product of thermal treatment thereof is combined in an amount between about 1 and about 99 weight percent in a binder therefor.
Claim 15
Dependent Claim
10 words
The process of claim 12 wherein said binder is alumina.
Claim 16
Dependent Claim
18 words
The process of claim 2 wherein the aromatic hydrocarbon charge is toluene and the transalkylating agent is trimethylbenzene.
Claim 17
Dependent Claim
18 words
The process of claim 2 wherein the aromatic hydrocarbon charge is toluene and the transalkylating agent is toluene.
References Cited (Backward Citations)
US4070407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |