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author：

Gan, Yuyan (Gan, Yuyan.) [1] | Xu, Yunzhao (Xu, Yunzhao.) [2] | Zhang, Peipei (Zhang, Peipei.) [3] | Wang, Weihao (Wang, Weihao.) [4] | Liu, Weiling (Liu, Weiling.) [5] | Li, Ruoyu (Li, Ruoyu.) [6] | Xu, Xiaoyang (Xu, Xiaoyang.) [7] | Wu, Lizhi (Wu, Lizhi.) [8] (Scholars：吴立志) | Tang, Yu (Tang, Yu.) [9] (Scholars：汤禹) | Tan, Li (Tan, Li.) [10] (Scholars：谭理)

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EI

Abstract：

Mo/HMCM-22　is　one　of　the　candidate　catalysts　for　methane　dehydroaromatization　(MDA)　reaction.　However,　serious　coke　deposition　would　deactivate　the　catalyst,　resulting　in　a　rapid　decrease　of　aromatics　yield.　Here,　we　adjusted　the　acidity　of　MCM-22　zeolite　by　doping　boron　into　the　framework.　Boron　species　replace　some　of　framework　aluminum　and　prompt　aluminum　to　locate　in　sinusoidal　channel.　It　optimizes　the　ratio　of　strong/weak　Brønsted　acid,　as　well　as　enhances　the　interaction　between　molybdenum　and　HMCM-22　to　facilitate　the　dispersion　of　molybdenum　species.　After　10　h　of　MDA　reaction,　the　yield　of　aromatics　over　Mo/H[B]MCM-22　(SBR　30)　is　3.5　times　higher　than　that　of　Mo/H[B]MCM-22　(SBR　5).　It　decreases　by　only　4.8　%　in　comparison　to　the　initial　yield.　Meanwhile,　Mo/H[B]MCM-22　(SBR　30)　shows　significantly　better　resistance　to　coke　deposition.　Therefore,　the　established　structure–activity　relationships　provide　valuable　insights　for　future　research　on　the　modification　of　zeolite　acidity　in　methane　dehydroaromatization　reaction.　©　2024　Elsevier　Ltd

Keyword：

Aluminum Boron Catalysts Coke Deposition Methane Molybdenum Zeolites

Community：

  • [ 1 ] [Gan, Yuyan]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 2 ] [Xu, Yunzhao]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Zhang, Peipei]CNOOC Institute of Chemicals & Advanced Materials, Beijing; 102209, China
  • [ 4 ] [Wang, Weihao]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 5 ] [Liu, Weiling]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 6 ] [Li, Ruoyu]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 7 ] [Xu, Xiaoyang]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 8 ] [Wu, Lizhi]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 9 ] [Tang, Yu]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 10 ] [Tan, Li]Institute of Molecule Catalysis and In-Situ/Operando Studies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350108, China

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Source ：

Chemical Engineering Science

ISSN： 0009-2509

Year： 2024

Volume： 299

4 . 1 0 0

JCR@2023

CAS Journal Grade：2

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WoS CC Cited Count：

SCOPUS Cited Count： 4

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 3

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