Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Thomas Yorke

Wieslaw J Roth

Simon Christopher Weston

Michael Charles Kerby

Douglas Lewis Dorset

Terry Eugene Helton

Mohan Kalyanaraman

Gordon Kennedy

Carrie L Kennedy

Prasenjeet Ghosh

Joshi V Yogesh

A process for the manufacture of large crystal size synthetic porous crystalline molecular sieve requires an aqueous reaction mixture that is organic structure directing agent-free, has a HO/MOH molar ratio (M is an alkali metal) of 75 or less, a source of XO(X is a trivalent element) and a source of YO(Y is a tetravalent element). The source of XOand YOis an amorphous material containing both XOand YOand having a YO/XOmolar ratio of 15 to 40. The resultant highly crystalline novel materials have crystals with at least one dimension greater than 1 &#x3bc;m, such as greater than 3 &#x3bc;m.

Large crystal molecular sieves and their manufacture

This disclosure relates to an EMM-12 molecular sieve having, in its as-synthesized form and in calcined form, an X-ray diffraction pattern including peaks having a d-spacing maximum in the range of 14.17 to 12.57 Angstroms, a d-spacing maximum in the range of 12.1 to 12.56 Angstroms, and non-discrete scattering between about 8.85 to 11.05 Angstroms or exhibit a valley in between the peaks having a d-spacing maximum in the range of 10.14 to 12.0 Angstroms and a d-spacing maximum in the range from 8.66 to 10.13 Angstroms with measured intensity corrected for background at the lowest point being not less than 50% of the point at the same XRD d-spacing on the line connecting maxima in the range of 10.14 to 12.0 Angstroms and in the range from 8.66 to 10.13 Angstroms.

Molecular sieve composition EMM-12, a method of making and a process of using the same

This disclosure relates to a molecular sieve comprising a framework of tetrahedral atoms bridged by oxygen atoms, the tetrahedral atom framework being defined by a unit cell with atomic coordinates in nanometers shown in Table 3.

Molecular sieve composition EMM-13, a method of making and a process of using the same

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&#xb1;0.25 and 12.33&#xb1;0.23 Angstroms, wherein the peak intensity of the d-spacing maximum at 13.18&#xb1;0.25 Angstroms is at least as great as 90% of the peak intensity of the d-spacing maximum at 12.33&#xb1;0.23 Angstroms. This invention also relates to a method of making thereof.

Molecular sieve composition (EMM-10-P), its method of making, and use for hydrocarbon conversions

The crystalline molecular sieve material EMM-7 has, in its as-synthesized form, an X-ray diffraction pattern including d-spacing maxima substantially as set forth in Table 1: wherein 'vs' means very strong (greater than 60 to 100), 's' means strong (greater than 40 to 60), &#x201c;m&#x201d; means medium (greater than 20 to 40) and &#x201c;w&#x201d; means weak (0 to 20).

Crystalline molecular sieve EMM-7, its synthesis and use

This invention relates to a process for hydrocarbon conversion comprising contacting a hydrocarbon feedstock with a crystalline molecular sieve, in its ammonium exchanged form or in its calcined form, under conversion conditions to form a conversion product, said crystalline molecular sieve comprising unit cells with MWW topology and is characterized by diffraction streaking from the unit cell arrangement in the c direction as evidenced by the arced hk0 patterns of electron diffraction pattern.

Molecular sieve composition (EMM-10), its method of making, and use for hydrocarbon conversions

This invention relates to a crystalline molecular sieve, in its ammonium exchanged form or in its calcined form, comprising unit cells with MWW topology, said crystalline molecular sieve is characterized by diffraction streaking from the unit cell arrangement in the c direction. The crystalline molecular sieve is further characterized by the arced hk0 patterns of electron diffraction pattern. The crystalline molecular sieve is further characterized by the unit cells streaking along c direction. This invention also relates to a method of making thereof.

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Toms River, NJ, United States of America

Thomas Yorke