US3970544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion with ZSM-12
Assignee: Mobil Oil AS
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Filing: 1975-02-28
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Granted: 1976-07-20
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Expires: 1995-02-28
Abstract
Abstract The specification discloses conversion of hydrocarbons using, as catalyst, a crystalline zeolite designated ZSM-12. The zeolite has the following composition: 1,0 ± 0.4 M.sub.2 O . W.sub.2 O . 20-200 YO.sub.2 . ZH.sub.2 O where M is at least one cation and n is the valence thereof, W is aluminum or gallium, Y is silicon or germanium, and Z is a value ranging from 0 to 60. In a preferred synthesized form, M is a mixture of alkali metal cations, especially sodium, and tetraalkylammonium cations. These zeolites are characterized by a specified x-ray powder diffraction pattern. Catalytically-active forms of said zeolites are used in a wide variety of hydrocarbon conversion reactions.
Inventors
- 👤 Edward Joseph Rosinski
- 👤 Mae Koenig Rubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:38
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7034; B01J29/7049; B01J29/7084; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; C10G35/00; C10G35/04; C10G35/06; C10G35/095; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; C10G49/00; C10G49/02; C10G49/08; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A process for conversion of a hydrocarbon charge which comprises contacting said charge under conversion conditions with a catalyst comprising a zeolite the X-ray powder diffraction pattern of which manifests the interplanar spacings set forth in Table 1 of the specification when the zeolite is in the sodium-tetraethylammonium cationic form, said zeolite having, in terms of mole ratios of oxides, the formula: 1 ± 0.4 M.sub.2/n O: W.sub.2 O.sub.3 : 20-200YO.sub.2 : zH.sub.2 O wherein M is at least one cation having a valance n, z is between 0 and 60, W is aluminum or gallium and Y is silicon or germanium.
Claim 2
Dependent Claim
102 words
A process for conversion of a hydrocarbon charge which comprises contacting said charge under conversion conditions with a catalyst comprising a zeolite the X-ray powder diffraction pattern of which manifests the interplanar spacings set forth in Table 1 of the specification when the zeolite is in the sodium-tetraethylammonium cationic form, said zeolite having, in terms of mole ratios of oxides, the formula: 1 ± 0.4 M.sub.2/n O: W.sub.2 O.sub.3 : 20-200YO.sub.2 : zH.sub.2 O wherein M is at least one cation having a valance n, z is between 0 and 60, W is aluminum or gallium and Y is silicon or germanium.
Claim 3
Dependent Claim
55 words
A process according to claim 1 wherein the zeolite is a crystalline aluminosilicate having, in terms of mole ratios of oxides, the formula: 1 ± 0.4 M.sub.2/n O : Al.sub.2 O.sub.3 : 20-200 SiO.sub.2 : zH.sub.2 O wherein M is at least one cation having a valence n and z is between 0 and 60.
Claim 4
Dependent Claim
23 words
A process according to claim 2 wherein the mole ratio of SiO 2 to Al 2 O 3 is between 50 and 120.
Claim 5
Dependent Claim
20 words
A process according to claim 2 wherein M comprises a cation selected from metal, alkylammonium ammonium, hydrogen and mixtures thereof.
Claim 6
Dependent Claim
43 words
A process according to claim 1 wherein said conversion is cracking and is carried out at a liquid hourly space velocity between about 0.5 and 50, a temperature between about 550°F and 1100°F and a pressure between about subatmospheric and several hundred atmospheres.
Claim 7
Dependent Claim
49 words
A process according to claim 1 wherein said conversion is hydrocracking and is carried out at a temperature between 400°F and 825°F, a hydrogen to hydrocarbon mole ratio between 2 and 80, a pressure between 10 and 2,500 p.s.i.g. and a liquid hourly space velocity between 0.1 and 10.
Claim 8
Dependent Claim
40 words
A process according to claim 5 wherein said space velocity is between about 10 and about 30 and said temperature is between about 800°F and 1100°F whereby the conversion product has a pour point lower than that of said charge.
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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) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |