TOF-MS investigation on methane aromatization over 3%Mo/HZSM-5 catalyst under supersonic jet expansion condition

Liu, B.S.; Leung, J. W. H.; Li, L.; Au, Chak Tong; Cheung, Any

doi:10.1016/j.cplett.2006.08.131

Cited by 20 publications

(20 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In principle, higher reaction temperatures than the most frequently reported one (973 K) result in higher benzene yield, but also lead to rapid carbon laydown on the catalyst. The formation of coke, which causes relatively fast deactivation of the catalyst, is the main challenge in the development of a commercial process for methane dehydroaromatization [6].…”

Section: Introductionmentioning

confidence: 99%

On the deactivation of Mo/HZSM-5 in the methane dehydroaromatization reaction

Tempelman

Hensen

2015

Applied Catalysis B: Environmental

190

132

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

On the deactivation of Mo/HZSM-5 in the methane dehydroaromatization reaction

Tempelman

Hensen

2015

Applied Catalysis B: Environmental

190

132

View full text Add to dashboard Cite

“…The results suggest the generation of alkene and aromatic species during MDA reaction. In the case of CH 4 feed with [3.5% water content, C 1s peaks attributable to MoO 3 -Mo 2 O x C y -MoO 2 31 and carbonyl species of CHO 12 can be observed (Figure 10d). …”

Section: Stability Of Mo 2 O X C Y and Carbon Speciesmentioning

confidence: 86%

“…The renewal of catalyst activity can be related to the removal of coke through oxidation and gasification of the surface carbon. 12 As shown in Figure 4, with the addition of 1.5% H 2 O ( Figure 4A) (Figure 4). It seems that the presence of water is not high enough to give a significant effect on the reaction.…”

Section: Effect Of Water Presence On Mda Under Sje Conditionmentioning

confidence: 92%

“…12,13 With rapid departure of hydrogen and aromatics from catalyst, product/catalyst interaction is limited and coke formation is not serious. In CH 4 /CO 2 reforming reactions over La 2 NiO 4 and 10%NiO/ CeO 2 -La 2 O 3 catalysts, we found that CO 2 and CH 4 conversions under SJE condition were significantly higher than those at equilibrium.…”

Section: Introductionmentioning

confidence: 99%

“…Later, we reported that under supersonic jet expansion (SJE) condition, the MDA reaction (6CH 4 ¼ C 6 H 6 þ 9H 2 ; 10CH 4 ¼ C 10 H 8 þ16H 2 ) is over within a short time ($10 À3 s) before reaching reaction equilibrium. 12,13 With rapid departure of hydrogen and aromatics from catalyst, product/catalyst interaction is limited and coke formation is not serious. In CH 4 /CO 2 reforming reactions over La 2 NiO 4 and 10%NiO/ CeO 2 -La 2 O 3 catalysts, we found that CO 2 and CH 4 conversions under SJE condition were significantly higher than those at equilibrium.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance of 3%Mo/ZSM-5 catalyst in the presence of water during methane aromatization in supersonic jet expansion

Liu

Tian

et al. 2010

AIChE J.

Self Cite

View full text Add to dashboard Cite

The influence of water in the CH 4 feed on the performance of 3%Mo/ZSM-5 catalyst during methane direct aromatization under supersonic jet expansion (SJE) condition was investigated. We observed that both surface Mo 2 O x C y and b-Mo 2 C species are catalytically active for methane aromatization under SJE condition. The presence of water can promote the removal of surface carbon before the generation of aromatictype and/or graphitic carbon. In appropriate amount, water can improve the stability of surface Mo 2 O x C y , and hence resulting in better catalytic performance. The study provided valuable information relevant to the direct utilization of methane hydrate.

show abstract

Emphasis on the Properties of Metal‐Containing Zeolites Operating Outside the Comfort Zone of Current Heterogeneous Catalytic Reactions

et al. 2020

View full text Add to dashboard Cite

The development of catalysts that can operate under exceptionally harsh and unconventional conditions is of critical importance for the transition of the energy and chemicals industries to low‐emission and renewable chemical feedstocks. In this review we will highlight materials and more specifically metal‐containing zeolite catalysts that have been tested under harsh reaction conditions such as high temperature light alkane conversion and biomass valorization. Particular attention will be given to studies that explore the stability and recyclability of metal‐containing zeolite catalysts operating in continuous modes. Metal‐containing zeolites are considered as an important class of catalysts operating outside the comfort zone of current heterogeneous catalytic reactions in both gas and liquid phase reactions. The relationship between the properties of the metal‐containing zeolite and catalytic performance will be explored.

show abstract

TOF-MS investigation on methane aromatization over 3%Mo/HZSM-5 catalyst under supersonic jet expansion condition

Cited by 20 publications

References 22 publications

On the deactivation of Mo/HZSM-5 in the methane dehydroaromatization reaction

On the deactivation of Mo/HZSM-5 in the methane dehydroaromatization reaction

Performance of 3%Mo/ZSM-5 catalyst in the presence of water during methane aromatization in supersonic jet expansion

Emphasis on the Properties of Metal‐Containing Zeolites Operating Outside the Comfort Zone of Current Heterogeneous Catalytic Reactions

Contact Info

Product

Resources

About