Molecular sieve composition (EMM-10-P), its method of making, and use for hydrocarbon conversions
AssigneeExxonMobil Chemical Patents Inc.
InventorsWieslaw J. Roth, Thomas Yorke, Michael C. Kerby, Simon C. Weston
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Abstract
This invention relates to a crystalline molecular sieve having, in its as-synthesized form, an X-ray diffraction pattern including d-spacing maxima at 13.18±0.25 and 12.33±0.23 Angstroms, wherein the peak intensity of the d-spacing maximum at 13.18±0.25 Angstroms is at least as great as 90% of the peak intensity of the d-spacing maximum at 12.33±0.23 Angstroms. This invention also relates to a method of making thereof.
Claims20
A method of making a crystalline molecular sieve, said crystalline molecular sieve having, in its as-synthesized form, an X-ray diffraction pattern including d-spacing maxima at 13.18±0.25 and 12.33±0.23 Angstroms, wherein the peak intensity of said d-spacing maximum at 13.18±0.25 Angstroms is at least as great as 90% of the peak intensity of said d-spacing maximum at 12.33±0.23 Angstroms, the method comprising the steps of:
- (a) providing a mixture comprising at least one source of at least one tetravalent element (Y), at least one source of at least one alkali or alkali earth metal element, at least one directing-agent (R), water, and optionally at least one source of at least one trivalent element (X), said mixture having the following molar ratio:
- Y:X2 =10 to infinity
- H2O:Y =1 to 10000
- OH−:Y =0.001 to 0.59
- M+:Y =0.001 to 2
- R:Y =0.001 to 2
- wherein M is an alkali metal and R is at least one N,N,N,N′N′N′-hexamethyl-1,5-pentanediaminium salt (Me6-diquat-5 salt(s)), wherein said OH−:Y is calculated without trivalent element source correction;
- and
- (b) submitting the mixture at crystallization conditions to form a product comprising the desired crystalline molecular sieve, wherein the crystallization conditions comprise a temperature in the range of from 100° C. to 200° C., and a crystallization time from about 1 hour to 400 hours.
A method of making a crystalline molecular sieve, said crystalline molecular sieve having, in its as-synthesized form, an X-ray diffraction pattern including d-spacing maxima at 13.18±0.25 and 12.33±0.23 Angstroms, wherein the peak intensity of said d-spacing maximum at 13.18±0.25 Angstroms is at least as great as 90% of the peak intensity of said d-spacing maximum at 12.33±0.23 Angstroms, the method comprising the steps of:
- (a) providing a mixture comprising at least one source of at least one tetravalent element (Y), at least one source of at least one alkali or alkali earth metal element, at least one directing-agent (R), water, and optionally at least one source of at least one trivalent element (X), said mixture having the following molar ratio:
- Y:X2 =10 to infinity
- H2O:Y =1 to 10000
- OH−:Y =0.74 to 2
- M+:Y =0.001 to 2
- R:Y =0.001 to 2
- wherein M is an alkali metal and R is at least one N,N,N,N′N′N′-hexamethyl-1,5-pentanediaminium salt (Me6-diquat-5 salt(s)), wherein said OH−:Y is calculated without trivalent element source correction;
- and
- (b) submitting the mixture at crystallization conditions to form a product comprising the desired crystalline molecular sieve, wherein the crystallization conditions comprise a temperature in the range of from 100° C. to 200° C., and a crystallization time from about 1 hour to 400 hours;
- and
- (c) recovering the crystalline molecular sieve.
A method of making a crystalline molecular sieve, said crystalline molecular sieve having, in its as-synthesized form, an X-ray diffraction pattern including d-spacing maxima at 13.18±0.25 and 12.33±0.23 Angstroms, wherein the peak intensity of said d-spacing maximum at 13.18±0.25 Angstroms is at least as great as 90% of the peak intensity of said d-spacing maximum at 12.33±0.23 Angstroms, the method comprising the steps of:
- (a) providing a mixture comprising at least one source of at least one tetravalent element (Y), at least one source of at least one alkali or alkali earth metal element, at least one directing-agent (R), water, and optionally at least one source of at least one trivalent element (X), said mixture having the following molar ratio:
- Y:X2 =10 to infinity
- H2O:Y =5 to 35
- OH−:Y =0.001 to 2
- M+:Y =0.001 to 2
- R:Y =0.001 to 2
- wherein M is an alkali metal and R is at least one N,N,N,N′N′N′-hexamethyl-1,5-pentanediaminium salt (Me6-diquat-5 salt(s)), wherein said OH−:Y is calculated with or without trivalent element source correction;
- and
- (b) submitting the mixture at crystallization conditions to form a product comprising the desired crystalline molecular sieve, wherein the crystallization conditions comprise a temperature in the range of from 100° C. to 200° C., and a crystallization time from about 1 hour to 400 hours;
- and
- (c) recovering the crystalline molecular sieve.
A method of manufacturing a crystalline MCM-22 family molecular sieve, said crystalline MCM-22 family molecular sieve having, in its as-synthesized form, an X-ray diffraction pattern including d-spacing maxima at 13.18±0.25 and 12.33±0.23 Angstroms, wherein the peak intensity of said d-spacing maximum at 13.18±0.25 Angstroms is at least as great as 90% of the peak intensity of said d-spacing maximum at 12.33±0.23 Angstroms, the method comprising the steps of:
- (a) providing a mixture comprising at least one silicon source (Si), at least one aluminum source (Al), at least one source of at least one alkali or alkali earth metal element, at least one directing-agent (R), and water, said mixture having the following molar ratio:
- Si:Al2 =10 to infinity
- H2O:Si=1 to 10000
- OH−:Si=0.001 to 0.59
- M+:Si =0.001 to 2
- R:Si =0.001 to 2
- wherein M is an alkali metal and R is at least one N,N,N,N′N′N′-hexamethyl-1,5 -pentanediaminium salt (Me6-diquat-5 salt(s)), wherein said OH−:Si is calculated without trivalent element source correction;
- and
- (b) submitting the mixture at crystallization conditions to form a product comprising the desired crystalline molecular sieve, wherein the crystallization conditions comprise a temperature in the range of from 100° C. to 200° C., and a crystallization time from about 1 hour to 400 hours;
- and
- (c) recovering the crystalline molecular sieve.
Dependencies are inferred from the claim text.