Effect of phosphorus on acidity and catalytic performance of Al-MCM-41 for the selective conversion of ethyl mercaptan to ethylene and H2S

Zhang, Xiongfei; Liu, Fei; Yang, Xiaojing

doi:10.1007/s10934-016-0184-1

Cited by 3 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Proper diminishment of acid sites could not only improve product selectivity, but also inhibit coke formation within a molecular sieve, hence improve the catalytic performance . Zhang et al found that coke formation was directly related to the presence of silanol-defective sites during the isomerization of o -xylene with HZSM-5 molecular sieves as catalyst. Liang et al found that the framework Al atoms in ZSM-5 mainly distributed in the straight and sinusoidal channels, which was realized by using silica sol as the silicon source, were favorable for the olefin cycle.…”

Section: Introductionmentioning

confidence: 99%

Relationship between Acidity, Defective Sites, and Diffusion Properties of Nanosheet ZSM-5 and Its Catalytic Performance in the Methanol to Propylene Reaction

Zhang

Yuan

et al. 2019

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

A seed-induced preparation method was developed to synthesize ZSM-5 crystals, in which two different kinds of ZSM-5 crystals were used as seeds. The different preparation methods for seeds led to the difference in the morphology and Al distribution. The results showed that the synthesized zeolites showed nanosheet morphology regardless of the types of seeds. However, the different types of seed led to the difference of synthesized zeolites in the pore structure, acid properties, and defect sites. Catalytic activity for the methanol to propylene (MTP) reaction of sample synthesized from sheet-like seed was better than that synthesized from spherical seed. On the contrary, the further hydrothermal treated sample induced by spherical seed demonstrated much a longer lifetime and higher propene selectivity in the MTP reaction compared to that induced by sheet-like seed. Its excellent catalytic performance can be attributed to the proper acidity, faster diffusion rate, and fewer framework defects after hydrothermal treatment.

show abstract

Section: Introductionmentioning

confidence: 99%