Title: Rapid synthesis of beta zeolites

Abstract

The invention provides methods for rapidly synthesizing heteroatom containing zeolites including Sn-Beta, Si-Beta, Ti-Beta, Zr-Beta and Fe-Beta. The methods for synthesizing heteroatom zeolites include using well-crystalline zeolite crystals as seeds and using a fluoride-free, caustic medium in a seeded dry-gel conversion method. The Beta zeolite catalysts made by the methods of the invention catalyze both isomerization and dehydration reactions.

Inventors:

Fan, Wei; Chang, Chun -Chih; Dornath, Paul; Wang, Zhuopeng

Issue Date:

2015-08-18

Research Org.:

University of Massachusetts, Boston, MA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1210887

Patent Number(s):

9108190

Application Number:

14/025,557

Assignee:

University of Massachusetts (Boston, MA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07H - SUGARS

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J29/035 - {Microporous crystalline materials not having base exchange properties, such as} silica polymorphs, e.g. silicalites
B01J2229/16 - to increase the Si/Al ratio

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07H - SUGARS

C07H1/00 - Processes for the preparation of sugar derivatives

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B39/06 - Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements {, i.e. by direct or secondary synthesis}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J29/7007 - {Zeolite Beta}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B39/085 - {Group IVB- metallosilicates}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J29/88 - Ferrosilicates

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B37/005 - {Silicates, i.e. so-called metallosilicalites or metallozeosilites}
C01B39/087 - {Ferrosilicates}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J2229/183 - in framework positions
B01J29/7057 - {Zeolite Beta}

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS

C07D307/50 - Preparation from natural products

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J29/89 - Silicates, aluminosilicates or borosilicates of titanium, zirconium or hafnium {
B01J29/7615 - {Zeolite Beta}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B39/065 - {Galloaluminosilicates

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DOE Contract Number:  

SC0001004

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Sep 12

Country of Publication:

United States

Language:

English

Subject:

09 BIOMASS FUELS; 10 SYNTHETIC FUELS