Process for alkylation of aromatic hydrocarbons using uzm-35
AssigneeUop LLC
InventorsChristopher P. Nicholas, Deng-Yang Jan, Jaime G. Moscoso
Life of this patent
Estimating the term…
Abstract
Alkylation processes such as the alkylation of aromatics, are catalyzed by the UZM-35 family of crystalline aluminosilicate zeolites represented by the empirical formula: Mmn+Rr+Al(1-x)ExSiyOz where M represents a combination of potassium and sodium exchangeable cations, R is a singly charged organoammonium cation such as the dimethyldipropylammonium cation and E is a framework element such as gallium. These UZM-35 zeolites are active and selective in alkylation processes.
Claims23
A process for alkylating aromatic hydrocarbons comprising contacting a hydrocarbon feedstock comprising at least alkylatable aromatics and a stream comprising olefins having from 2 to about 6 carbon atoms with a catalyst at alkylation conditions and producing an alkylated aromatic product wherein the catalyst comprises a UZM-35HS microporous crystalline zeolite, wherein the UZM-35HS has a three-dimensional framework of at least AlO2 and SiO2 tetrahedral units and an empirical composition on an anhydrous basis expressed by an empirical formula of:
- M1an+Al(1-x)ExSiy′Oz′
- where M1 is at least one exchangeable cation selected from the group consisting of alkali, alkaline earth metals, rare earth metals, ammonium ion, hydrogen ion and mixtures thereof, “a” is the mole ratio of M1 to (Al+E) and varies from about 0.05 to about 50, “n” is the weighted average valence of M1 and has a value of about +1 to about +3, E is an element selected from the group consisting of gallium, iron, boron, and mixtures thereof, “x” is the mole fraction of E and varies from 0 to 1.0, y′ is the mole ratio of Si to (Al+E) and varies from greater than about 4 to virtually pure silica and z′ is the mole ratio of 0 to (Al+E) and has a value determined by the equation:
- z′=(a·n+3+4·y′)/2
- and is characterized in that it has the x-ray diffraction pattern having at least the d-spacings and intensities set forth in Table A:
- TABLE A
- 2θ
- d (Å)
- I/Io %
- 6.45-6.8
- 13.7-13
- m
- 6.75-7.13
- 13.1-12.4
- m-vs
- 7.86-8.26
- 11.25-10.7
- m
- 8.64-9.04
- 10.23-9.78
- m
- 9.51-10.09
- 9.3-8.77
- m-vs
- 10.62-11.23
- 8.33-7.88
- w-m
- 13.4-14.22
- 6.61-6.23
- w-m
- 14.76-15.55
- 6-5.7
- w
- 17.63-18.37
- 5.03-4.83
- m
- 19.17-19.91
- 4.63-4.46
- w-m
- 19.64-20.56
- 4.52-4.32
- m
- 20.18-21.05
- 4.4-4.22
- w-m
- 20.7-21.57
- 4.29-4.12
- w-m
- 21.36-22.28
- 4.16-3.99
- vs
- 22.17-23.6
- 4.01-3.77
- m-s
- 24.12-25.23
- 3.69-3.53
- w
- 25.6-26.94
- 3.48-3.31
- m
- 26.37-27.79
- 3.38-3.21
- m
- 27.02-28.42
- 3.3-3.14
- m
- 27.53-28.89
- 3.24-3.09
- m
- 28.7-30.09
- 3.11-2.97
- m
- 29.18-30.72
- 3.06-2.91
- w-m
- 30.19-31.73
- 2.96-2.82
- m
- 30.83-32.2
- 2.9-2.78
- w
- 32.81-34.22
- 2.73-2.62
- w
- 35.63-36.99
- 2.52-2.43
- w
- 41.03-42.86
- 2.2-2.11
- w
- 44.18-45.83
- 2.05-1.98
- w
- 44.87-46.57
- 2.02-1.95
- w
- 46.07-47.35
- 1.97-1.92
- w
- 48.97-50.42
- 1.86-1.81
- w
- and is thermally stable up to a temperature of at least 400° C.
An alkylation process comprising contacting a feedstock comprising unsubstituted or monosubstituted benzene and an olefin stream comprising ethylene with a catalyst at alkylation conditions and producing an alkylated aromatic product wherein the catalyst comprises a UZM-35HS microporous crystalline zeolite, wherein the UZM-35HS has a three-dimensional framework of at least AlO2 and SiO2 tetrahedral units and an empirical composition on an anhydrous basis expressed by an empirical formula of:
- M1an+Al(1-x)ExSiy′Oz′
- where M1 is at least one exchangeable cation selected from the group consisting of alkali, alkaline earth metals, rare earth metals, ammonium ion, hydrogen ion and mixtures thereof, “a” is the mole ratio of M1 to (Al+E) and varies from about 0.05 to about 50, “n” is the weighted average valence of M1 and has a value of about +1 to about +3, E is an element selected from the group consisting of gallium, iron, boron, and mixtures thereof, “x” is the mole fraction of E and varies from 0 to 1.0, y′ is the mole ratio of Si to (Al+E) and varies from greater than about 4 to virtually pure silica and z′ is the mole ratio of 0 to (Al+E) and has a value determined by the equation:
- z′=(a·n+3+4·y)/2
- and is characterized in that it has the x-ray diffraction pattern having at least the d-spacings and intensities set forth in Table A:
- TABLE A
- Table A2θ
- d (Å)
- I/Io %
- 6.45-6.8
- 13.7-13
- m
- 6.75-7.13
- 13.1-12.4
- m-vs
- 7.86-8.26
- 11.25-10.7
- m
- 8.64-9.04
- 10.23-9.78
- m
- 9.51-10.09
- 9.3-8.77
- m-vs
- 10.62-11.23
- 8.33-7.88
- w-m
- 13.4-14.22
- 6.61-6.23
- w-m
- 14.76-15.55
- 6-5.7
- w
- 17.63-18.37
- 5.03-4.83
- w
- 19.17-19.91
- 4.63-4.46
- w-m
- 19.64-20.56
- 4.52-4.32
- m
- 20.18-21.05
- 4.4-4.22
- w-m
- 20.7-21.570
- 4.29-4.12
- w-m
- 21.36-22.28
- 4.16-3.99
- vs
- 22.17-23.6
- 4.01-3.77
- m-s
- 24.12-25.23
- 3.69-3.53
- w
- 25.6-26.94
- 3.48-3.31
- m
- 26.37-27.79
- 3.38-3.21
- m
- 27.02-28.42
- 3.3-3.14
- m
- 27.53-28.89
- 3.24-3.09
- m
- 28.7-30.09
- 3.11-2.97
- m
- 29.18-30.72
- 3.06-2.91
- w-m
- 30.19-31.73
- 2.96-2.82
- m
- 30.83-32.2
- 2.9-2.78
- w
- 32.81-34.22
- 2.73-2.62
- w
- 35.63-36.99
- 2.52-2.43
- w
- 41.03-42.86
- 2.2-2.11
- w
- 44.18-45.83
- 2.05-1.98
- w
- 44.87-46.57
- 2.02-1.95
- w
- 46.07-47.35
- 1.97-1.92
- w
- 48.97-50.42
- 1.86-1.81
- w
- and is thermally stable up to a temperature of at least 400° C.
An alkylation process comprising contacting a feedstock comprising unsubstituted or monosubstituted benzene and an olefin stream comprising propylene with a catalyst at alkylation conditions and producing an alkylated aromatic product wherein the catalyst comprises a UZM-35HS microporous crystalline zeolite, wherein the UZM-35HS has a three-dimensional framework of at least AlO2 and SiO2 tetrahedral units and an empirical composition on an anhydrous basis expressed by an empirical formula of:
- M1an+Al(1-x)ExSiy′Oz′
- where M1 is at least one exchangeable cation selected from the group consisting of alkali, alkaline earth metals, rare earth metals, ammonium ion, hydrogen ion and mixtures thereof, “a” is the mole ratio of M1 to (Al+E) and varies from about 0.05 to about 50, “n” is the weighted average valence of M1 and has a value of about +1 to about +3, E is an element selected from the group consisting of gallium, iron, boron, and mixtures thereof, “x” is the mole fraction of E and varies from 0 to 1.0, y′ is the mole ratio of Si to (Al+E) and varies from greater than about 4 to virtually pure silica and z′ is the mole ratio of 0 to (Al+E) and has a value determined by the equation:
- z′=(a·n+3+4·y)/2
- and is characterized in that it has the x-ray diffraction pattern having at least the d-spacings and intensities set forth in Table A:
- TABLE A
- Table A2θ
- d (Å)
- I/Io %
- 6.45-6.8
- 13.7-13
- m
- 6.75-7.13
- 13.1-12.4
- m-vs
- 7.86-8.26
- 11.25-10.7
- m
- 8.64-9.04
- 10.23-9.78
- m
- 9.51-10.09
- 9.3-8.77
- m-vs
- 10.62-11.23
- 8.33-7.88
- w-m
- 13.4-14.22
- 6.61-6.23
- w-m
- 14.76-15.55
- 6-5.7
- w
- 17.63-18.37
- 5.03-4.83
- w
- 19.17-19.91
- 4.63-4.46
- w-m
- 19.64-20.56
- 4.52-4.32
- m
- 20.18-21.05
- 4.4-4.22
- w-m
- 20.7-21.570
- 4.29-4.12
- w-m
- 21.36-22.28
- 4.16-3.99
- vs
- 22.17-23.6
- 4.01-3.77
- m-s
- 24.12-25.23
- 3.69-3.53
- w
- 25.6-26.94
- 3.48-3.31
- m
- 26.37-27.79
- 3.38-3.21
- m
- 27.02-28.42
- 3.3-3.14
- m
- 27.53-28.89
- 3.24-3.09
- m
- 28.7-30.09
- 3.11-2.97
- m
- 29.18-30.72
- 3.06-2.91
- w-m
- 30.19-31.73
- 2.96-2.82
- m
- 30.83-32.2
- 2.9-2.78
- w
- 32.81-34.22
- 2.73-2.62
- w
- 35.63-36.99
- 2.52-2.43
- w
- 41.03-42.86
- 2.2-2.11
- w
- 44.18-45.83
- 2.05-1.98
- w
- 44.87-46.57
- 2.02-1.95
- w
- 46.07-47.35
- 1.97-1.92
- w
- 48.97-50.42
- 1.86-1.81
- w
- and is thermally stable up to a temperature of at least 400° C.
Dependencies are inferred from the claim text.