EMM-58 zeolite compositions, syntheses, and uses

Patent metadata

Field	Value
Publication number	US-12269750-B2
Application number	US-202018040403-A
Country	US
Kind code	B2
Filing date	Aug 7, 2020
Priority date	Aug 7, 2020
Publication date	Apr 8, 2025
Grant date	Apr 8, 2025

Abstract

An aluminosilicate zeolite may have a molar ratio of Si to Al of about 3 to about 10, a monoclinic space group C2/m with unit cell dimensions of a of 13.6 Å+/−5%, b of 21.7 Å+/−5%, c of 6.7 Å+/−5%, and β of 93°+/−3°, 12-ring pores along a c-axis having dimensions of 7 Å+/−5% by 6 Å+/−5%, and 8-ring pores along an a-axis having dimensions of 3 Å+/−5% by 3 Å+/−5%. Said aluminosilicate zeolites may be useful in hydrocarbon conversion processes, selective catalytic reduction of NOx, CO 2 and/or N 2 adsorption, carbonylation reactions, and the monoalkylamine and dialkylamine syntheses.

First claim

What is claimed:

1. A composition comprising:
an aluminosilicate zeolite having a molar ratio of Si to Al of about 3 to about 10, wherein the aluminosilicate zeolite has (a) a monoclinic space group C2/m with unit cell dimensions of a of 13.6 Å+/−5%, b of 21.7 Å+/−5%, c of 6.7 Å+/−5%, and β of 93°+/−3°, (b) 12-ring pores along a c-axis having dimensions of 7 Å+/−5% by 6 Å+/−5%, and (c) 8-ring pores along an a-axis having dimensions of 3 Å+/−5% by 3 Å+/−5%.

2. The composition of claim 1 having, in an as-synthesized form, an X-ray diffraction pattern including d-spacings (d(Å)) and peak relative percent areas of:

d(Å)
Peak Relative % Area

11.7-11.9
20-40

10.8-11.1
35-55

 6.8-7.0
20-40

 6.4-6.6
35-55

 5.7-5.9
10-30

 4.7-4.9
80-100

 4.4-4.6
30-50

3.69-3.75
10-30

3.65-3.68
20-40

3.56-3.62
50-70

3.44-3.49
50-70

3.19-3.24
40-60

3.04-3.09
20-40.

3. The composition of claim 1 having, in a calcined form, an X-ray diffraction pattern including d-spacings (d(Å)) and peak relative percent areas of:

d(Å)
Peak Relative % Area

11.5-11.7
80-100

10.8-11.1
60-80

 6.7-6.9
40-60

 6.3-6.5
20-40

4.71-4.75
60-80

4.42-4.50
15-35

4.20-4.28
15-35

3.65-3.70
10-25

3.60-3.64
10-25

3.54-3.59
25-45

3.40-3.44
35-55

3.17-3.23
45-65

3.02-3.05
15-30.

4. The composition of claim 1 , further comprising one or more selected from the group consisting of: mordenite, a DON-type zeolite, analcime, quartz, and cristobalite.

5. The composition of claim 1 , wherein the aluminosilicate zeolite further comprises a hydrogenating metal.

6. A method comprising: performing a hydrocarbon conversion process in the presence of the composition of claim 1 , wherein the hydrocarbon conversion process is selected from the group consisting of cracking, hydrocracking, disproportionation, alkylation, and isomerization.

7. The composition of claim 1 wherein the aluminosilicate zeolite has coordination sequences of T-atoms of: T1 4 10 19 32 48 69 98 126 154 192; T2 4 11 17 30 48 72 100 125 150 186; T3 4 10 20 32 47 69 96 126 159 191; and T4 4 10 19 31 48 71 97 125 156 189.

Assignees

• Exxonmobil Technology & Engineering Company

Inventors

• Burton Allen W
• Vroman Hilda B
• Falkowski Joseph M

Classifications

• Y02P20/52

  using catalysts, e.g. selective catalysts · CPC title

• Y02P20/151

  Reduction of greenhouse gas [GHG] emissions, e.g. CO2 · CPC title

• Y02C20/40

  of CO2 · CPC title

• C01P2004/03

  obtained by SEM · CPC title

• C01P2002/76

  by a space-group or by other symmetry indications · CPC title