Enhanced Methane Dehydroaromatization via Coupling with Chemical Looping

被引：34

作者：

Brady, Casper ^{[1
]}

Murphy, Brian ^{[1
]}

Xu, Bingjun ^{[1
]}

机构：

[1] Univ Delaware, Ctr Catalyt Sci & Technol, Dept Chem & Biomol Engn, 150 Acad St, Newark, DE 19716 USA

来源：

ACS CATALYSIS | 2017年 / 7卷 / 06期

关键词：

dehydroaromatization; chemical looping; reactive separation; methane activation; Mo/H-ZSM-5; CONTINUOUS HYDROGEN REMOVAL; WATER-SPLITTING CYCLE; NONOXIDATIVE AROMATIZATION; MEMBRANE REACTOR; LOW-TEMPERATURE; CATALYSTS; CONVERSION; MO/ZSM-5; COMBUSTION; MO/HZSM-5;

D O I：

10.1021/acscatal.7b00879

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Methane dehydroaromatization (DHA) is a desirable process for the conversion of methane in stranded natural gas to valuable and easy-to-transport liquid aromatic compounds. However, the reaction is severely limited by thermodynamics. We present a method to circumvent the thermodynamic limitation by coupling DHA with chemical looping to achieve reactive separation of H-2, from the products of DHA. The proposed strategy involves a four-step cycle, i.e., DHA on the Mo/H-ZSM-5 catalyst, hydrogen removal, and regeneration on the Fe3O4/FeO redox pair, and water removal on Zeolite 5A. The feasibility of this process is validated by investigating each step individually. The results indicate that an aromatics yield up to >40% is possible with the proposed process.

引用

页码：3924 / 3928

页数：5

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