Study on a potential hydrogen storage system: Microwave-activated methylcyclohexane dehydrogenation

被引：4

作者：

Gao, Botao ^{[1
]}

Guo, Shenghui ^{[1
,2
]}

Hou, Ming ^{[2
]}

Yao, Siyu ^{[3
]}

Huang, Yuedong ^{[2
]}

Yang, Li ^{[1
,2
]}

Gao, Lei ^{[2
]}

机构：

[1] Kunming Univ Sci & Technol, State Int Joint Res Ctr Adv Technol Superhard Mat, State Key Lab Complex Nonferrous Met Resources Cle, Kunming 650093, Peoples R China

[2] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China

[3] Zhejiang Univ, Coll Chem & Biol Engn, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310027, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 79卷

基金：

中国国家自然科学基金;

关键词：

Hydrogen storage; Microwave; Methylcyclohexane; Numerical simulation; Hot spot control; CATALYTIC DEHYDROGENATION; HEAT-TRANSFER; ORGANIC HYDRIDES; REACTOR; METHANE; PAIR; MECHANISMS; SIMULATION; EVOLUTION; PLATINUM;

D O I：

10.1016/j.ijhydene.2024.06.408

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：

The efficient and low-energy dehydrogenation process of methylcyclohexane catalyzed by Pt/Al2O3 2 O 3 is a crucial step in hydrogen storage using the organic chemical hydride method, aiming to avoid catalyst deactivation at high temperatures. This study utilized SiC as a catalyst support to facilitate the dehydrogenation of methylcyclohexane (MCH) using Pt/Al2O3 2 O 3 catalysts. Additionally, a multi-field coupled numerical model was developed to elucidate the observed temperature increase phenomenon during the process. Experimental results demonstrate that the efficiency of the microwave reactor surpasses that of traditional thermal reactors, with the catalyst exhibiting characteristics of resistance to coking and high activity under microwave irradiation. Finally, based on the above results, we discuss the impact of "hot spots" during microwave heating on heterogeneous gas-phase catalytic reactions, and by dynamically adjusting the sample position in the microwave field, the adverse effects of fixed "hot spots" accumulation on the catalytic process are mitigated.

引用

页码：619 / 629

页数：11

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