蒙脱石负载纳米镍甘油水蒸气重整制氢

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张川,豆斌林,蒋博,杨明军,宋永臣.蒙脱石负载纳米镍甘油水蒸气重整制氢[J].,2016,56(5):454-456

蒙脱石负载纳米镍甘油水蒸气重整制氢

Montmorillonite supported nickel nanoparticles for hydrogen production from glycerol steam reforming

DOI：10.7511/dllgxb201605003

中文关键词:蒙脱石(MMT)纳米镍甘油水蒸气重整(GSR)制氢

英文关键词:montmorillonite (MMT)nickel nanoparticles glycerol steam reforming (GSR)hydrogen production

基金项目:国家自然科学基金资助项目(91434129,51476022,51276032)；大连国际科技合作项目(2015F11GH091)；中央高校基本科研业务费专项资金资助项目(DUT15JJ(G)02).

作者	单位
张川,豆斌林,蒋博,杨明军,宋永臣

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中文摘要:

采用提升pH工艺把不同含量的镍浸渍在蒙脱石(MMT)上，分别在600、700与 800 ℃ 下煅烧成型．研究Ni/MMT催化剂用于甘油水蒸气重整(GSR)制氢的效果，并通过氮气吸附、粉末X射线衍射和透射电镜对Ni/MMT催化剂进行表征．甘油水蒸气重整制氢是在 1.013× 10 5 Pa，400~600 ℃，固定床反应器中进行的．对不同镍含量以及煅烧温度对催化活性与产物选择性的影响进行分析．700 ℃煅烧的催化剂比600、800 ℃煅烧的催化剂拥有更好的催化活性．在700 ℃下煅烧的镍含量为19.89%的催化剂催化活性最好，在600 ℃时甘油转化率达到85%，同时氢气选择性为76%．实验结果表明，在400~600 ℃随着温度上升，甘油转化率上升．

英文摘要:

Montmorillonite (MMT) supported nickel nanoparticles (Ni/MMT) with different nickel loadings are prepared by the impregnation method with rising pH technique at the calcination temperatures of 600,700 and 800 ℃ in order to investigate the performance of Ni/MMT catalysts in glycerol steam reforming (GSR) for hydrogen production. The Ni/MMT catalysts are characterized by different techniques, including nitrogen adsorption, powder X-ray diffraction and transmission electron microscope. Hydrogen production from GSR by Ni/MMT catalysts is carried out in a fixed-bed reactor under 1.013×10 5 Pa within a temperature range of 400-600 ℃. The effects of different nickel loadings on catalytic activity and product selectivity are evaluated. Compared with the Ni/MMT catalysts calcined at 600 ℃ and 800 ℃, the catalysts calcined at 700 ℃ show better catalytic activity. The catalysts calcined at 700 ℃ with nickel loading of 19.89% perform best, and the H 2 selectivity is found to be 76% and conversion of glycerol is up to 85% at 600 ℃. The experimental results show that glycerol conversion increases with increasing temperatures from 400 ℃ to 600 ℃.

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蒙脱石负载纳米镍甘油水蒸气重整制氢

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