A safe and clean way to produce H2O2 from H2 and O2 within the explosion limit range

被引：16

作者：

Sun, Bing ^{[1
,2
]}

Zhu, Hongwei ^{[2
]}

Liang, Wuyang ^{[3
]}

Zhang, Xiaoming ^{[3
]}

Feng, Junjie ^{[2
]}

Xu, Wei ^{[1
]}

机构：

[1] State Key Lab Safety & Control Chem, 218 Yanan 3rd Rd, Qingdao 266000, Shandong, Peoples R China

[2] SINOPEC Res Inst Safety Engn, 339 Songling Rd, Qingdao 266071, Shandong, Peoples R China

[3] Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Sichuan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 36期

基金：

中国国家自然科学基金;

关键词：

Direct synthesis; Hydrogen peroxide; Microreactor; Explosion limit; AU-PD CATALYST; HYDROGEN-PEROXIDE; MICROREACTOR; DESIGN;

D O I：

10.1016/j.ijhydene.2019.05.147

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 direct synthesis of hydrogen peroxide (DSH) from hydrogen and oxygen is an attractive production route due to its green nature. However, it faces multiple technical challenges, the biggest being the explosion risk of the flammable gas mixture. Herein we have used microreactors to perform the reaction in an inherently safer way which allows the hydrogen concentration to fall within the explosion limit range. For the first time, we have studied the flame propagation phenomena inside a microreactor to determine the optimum channel dimension for DSH. A mechanism of "fast synthesis and slow destruction" has been proposed via investigation on the influence of channel length and liquid flow rate. Besides, a variety of reaction parameters including gas flow rate, oxygen: hydrogen ratio, catalyst composition and gas pressure have been studied carefully. The successful employment of a microreactor in this case has indicated the potential of using micro reactors to inhibit the explosion risks of hazardous processes. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：19547 / 19554

页数：8

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