Processes using molecular sieve SSZ-27

Patent metadata

Field	Value
Publication number	US-9505627-B1
Application number	US-201615098450-A
Country	US
Kind code	B1
Filing date	Apr 14, 2016
Priority date	May 21, 2015
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

Uses for a new crystalline molecular sieve designated SSZ-27 are disclosed. SSZ-27 is synthesized using a hexamethyl [4.3.3.0] propellane-8,11-diammonium cation as a structure directing agent.

First claim

The invention claimed is:

1. In a process for separating gases using a membrane containing a molecular sieve, the improvement comprising using as the molecular sieve a molecular sieve having in its calcined form, an X-ray diffraction pattern including the lines listed in the following table:

2-Theta
d-Spacing, nm
Relative Intensity

 7.50 ± 0.20
1.177
W

 8.65 ± 0.20
1.021
W

 9.47 ± 0.20
0.933
VS

 9.94 ± 0.20
0.889
M

13.47 ± 0.20
0.657
M

14.86 ± 0.20
0.596
M

16.07 ± 0.20
0.551
W

16.37 ± 0.20
0.541
W

17.92 ± 0.20
0.495
W

19.92 ± 0.20
0.445
W

20.66 ± 0.20
0.430
W

21.14 ± 0.20
0.420
W

21.34 ± 0.20
0.416
W

22.07 ± 0.20
0.402
M

23.17 ± 0.20
0.384
M.

2. A process for the production of light olefins from a feedstock comprising an oxygenate or mixture of oxygenates, the process comprising reacting the feedstock at effective conditions over a catalyst comprising a molecular sieve having, in its calcined form, an X-ray diffraction pattern including the lines listed in the following table:

2-Theta
d-Spacing, nm
Relative Intensity

 7.50 ± 0.20
1.177
W

 8.65 ± 0.20
1.021
W

 9.47 ± 0.20
0.933
VS

 9.94 ± 0.20
0.889
M

13.47 ± 0.20
0.657
M

14.86 ± 0.20
0.596
M

16.07 ± 0.20
0.551
W

16.37 ± 0.20
0.541
W

17.92 ± 0.20
0.495
W

19.92 ± 0.20
0.445
W

20.66 ± 0.20
0.430
W

21.14 ± 0.20
0.420
W

21.34 ± 0.20
0.416
W

22.07 ± 0.20
0.402
M

23.17 ± 0.20
0.384
M.

3. The process of claim 2 , wherein the light olefins are ethylene, propylene, butylene, or mixtures thereof.

4. The process of claim 2 , wherein the oxygenate is methanol, dimethyl ether, or a mixture thereof.

5. A process for producing methylamine or dimethylamine comprising reacting methanol, dimethyl ether, or a mixture thereof, and ammonia in the gaseous phase in the presence of a catalyst comprising a molecular sieve having, in its calcined form, an X-ray diffraction pattern including the lines listed in the following table:

2-Theta
d-Spacing, nm
Relative Intensity

 7.50 ± 0.20
1.177
W

 8.65 ± 0.20
1.021
W

 9.47 ± 0.20
0.933
VS

 9.94 ± 0.20
0.889
M

13.47 ± 0.20
0.657
M

14.86 ± 0.20
0.596
M

16.07 ± 0.20
0.551
W

16.37 ± 0.20
0.541
W

17.92 ± 0.20
0.495
W

19.92 ± 0.20
0.445
W

20.66 ± 0.20
0.430
W

21.14 ± 0.20
0.420
W

21.34 ± 0.20
0.416
W

22.07 ± 0.20
0.402
M

23.17 ± 0.20
0.384
M.

Assignees

• Chevron Usa Inc

Inventors

• Zones Stacey Ian
• Xie Dan
• Saxton Robert James

Classifications

• B01D2255/50

  Zeolites · CPC title

• B01D53/9486

  for storing hydrocarbons · CPC title

• B01D53/9413

  Processes characterised by a specific catalyst · CPC title

• C07C1/24

  by elimination of water · CPC title

• B01J29/78

  containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium · CPC title