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US 2022/0064012 A1Published application
Mfi zeolites using dabco and methylamine reagents
AssigneePurdue Research Foundation
InventorsRajamani Gounder, Claire Townsend Nimlos, Byung Jin Lee
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Abstract
An oligomerization catalyst, oligomer products, methods for making and using same. The catalyst is synthesized MFI zeolite (ZSM-5) made from a combination of DABCO and methylamine (MEA) in the presence of Na cations.
Claims20
An aluminosilicate gel, comprising:
- 1,4-diazabicyclo[2.2.2]octane (DABCO);
- methylamine (MEA);
- sodium (Na) cations;
- a silica source;
- and an alumina source.
2 more elements
A method for making a zeolite having MFI framework topology, comprising:
- adding a source of 1,4-diazabicyclo[2.2.2]octane (DABCO), methylamine (MEA) and sodium (Na) to water to form an aqueous solution;
- mixing the aqueous solution for a first time period;
- adding a source of aluminum to the homogenized aqueous solution to form an intermediate agent;
- and
- mixing the intermediate agent for a second time period to form an aluminum-containing intermediate agent;
- adding a source of silicon to the aluminum-containing intermediate agent to form an aluminosilicate-containing intermediate agent;
- and
- mixing the aluminosilicate-containing intermediate agent for a third time period to form a synthesis gel;
- subjecting the synthesis gel to conditions sufficient to crystallize a MFI zeolite;
- and
- recovering solids comprising the acid-form zeolite.
8 more elements
Dependencies are inferred from the claim text.