Formation of methylamines by the reaction of ammonia with surface methoxy species on zeolite H-Y and the silicoaluminophosphate H-SAPO-34

Y. Jiang*, J. Huang, W. Wang, M. Hunger

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

In the present work, the amination of surface methoxy species formed by methanol on acidic zeolite H-Y and the silicoaluminophosphate H-SAPO-34 was studied and it was found that these methoxy groups are reactive compounds in amination reactions already at room temperature. The above-mentioned reaction was investigated for different molar ammonia to methoxy ratios (N/C) and at various reaction temperatures by 13C MAS NMR spectroscopy. By a subsequent thermal treatment, it was evidenced that the selectivities towards monomethylamine, dimethylamine, and trimethylamine strongly depend on the reaction temperature. Moreover, due to the different pore architectures of the catalysts under study, H-SAPO-34 has the higher selectivity towards mono- and dimethylamine in comparison with zeolite H-Y. This finding may be an indication that the silicoaluminophosphate H-SAPO-34 is a selective amination catalyst with the additional ability to change the contents of monomethylamine, dimethylamine, and trimethylamine by varying the reaction temperature.

Original languageEnglish
Title of host publicationFrom zeolites to porous MOF materials
Subtitle of host publicationthe 40th anniversary of international zeolite conference
EditorsRuren Xu, Zi Gao , Jiesheng Chen, Wenfu Yan
Place of PublicationAmsterdam; Oxford
PublisherElsevier
Pages1331-1337
Number of pages7
Volume170
EditionB
ISBN (Print)0444530681, 9780444530684, 9780444531865, 9780444531858
DOIs
Publication statusPublished - 2007
Externally publishedYes

Publication series

NameStudies in Surface Science and Catalysis
NumberB
Volume170
ISSN (Print)01672991

Fingerprint Dive into the research topics of 'Formation of methylamines by the reaction of ammonia with surface methoxy species on zeolite H-Y and the silicoaluminophosphate H-SAPO-34'. Together they form a unique fingerprint.

Cite this