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Innovative Cu/Ni/Fe/γ-Al2O3/Al mesh-type catalyst and compact plate reactor design for steam reforming of dimethyl ether
Catalysis Today ( IF 5.2 ) Pub Date : 2018-03-16 , DOI: 10.1016/j.cattod.2018.03.027
Hualong Chu , Qi Zhang , Yameng Chu , Qiang Ding , Qiang Wang , Hong Xu , Li Zhang

With the intensification of energy depletion and environmental crisis, the development of hydrogen energy is drawing more and more attention. On-site steam reforming of alcohols and ethers in small-size devices is an effective way to supply hydrogen in a decentralized manner. In this paper, a new mesh-type structured catalyst was developed, which has a uniform γ-Al2O3 support layer on the surface of commercial aluminium mesh prepared by the anodic oxidation method. The compact plate reactor and test system were designed to match the new catalyst. The steam reforming performance of Cu-Ni and Cu-Ni-Fe catalysts and the hydrogen production capacity of the compact plate reactor were investigated at different temperatures and gas hourly space velocity (GHSV) using dimethyl ether (DME) as the feedstock. The experimental results showed that the two catalysts exhibited good self-reduction property. The concentration of carbon monoxide in the product can be significantly reduced for the Cu-Ni-Fe catalyst. When the GHSV was 18,000 ml/(g h) and the temperature was 400 °C, the DME conversion was 66%, and the hydrogen production capacity per unit reaction chamber can reach 76.5 ml/(min cm3). The catalyst developed in this paper also has the advantages of high bonding strength, flexible deformability, light weight and economy.



中文翻译:

创新的铜/镍/铁/γ-Al系2 ö 3 / Al的网型催化剂和紧凑板反应器设计用于蒸汽二甲醚的重整

随着能源枯竭和环境危机的加剧,氢能的发展越来越受到人们的关注。在小型设备中对乙醇和醚进行现场蒸汽重整是一种以分散方式提供氢的有效方法。在本文中,一个新的网型结构的催化剂的开发,其具有均匀的γ-Al 2 ö 3阳极氧化法制备的商品铝网表面的支撑层。设计紧凑的平板反应器和测试系统以匹配新的催化剂。以二甲醚(DME)为原料,研究了Cu-Ni和Cu-Ni-Fe催化剂在不同温度和气体时空速(GHSV)下的蒸汽重整性能和制氢反应器的制氢能力。实验结果表明,两种催化剂均具有良好的自还原性能。对于Cu-Ni-Fe催化剂,可以显着降低产物中一氧化碳的浓度。当GHSV为18,000 ml /(g h)且温度为400°C时,DME转化率为66%,每单元反应室的制氢能力可以达到76.5 ml /(min cm 3)。)。本文开发的催化剂还具有粘结强度高,变形能力灵活,重量轻,经济的优点。

更新日期:2018-03-16
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