Hydrogen Production by Hydrolyzing Zn Nano-Particles in a Cyclone Reactor

Bo Xu; Shu Lin Wang; Sheng Juan Li; Lai Qiang Li

doi:10.4028/www.scientific.net/AMR.152-153.1066

Paper Titles

Relationships between the Abilities of the Forming Bond of the Precipitated Phases and their Precipitations and Phases Transition in Al-Fe-Si Alloy
p.1049

Erosion-Abrasion Behavior of Eutectic Al-Mn Alloy Matrix Composites Reinforced with Al₂O₃ Particulates
p.1054

FEM Analysis and Experimental Study for Bond Strength of High-Strength Coating by Wedged Load Test Method
p.1058

Effects of Fe²⁺ on Fermentation and Biohydrogen Production of Biohydrogenbacterium R3 sp.nov.
p.1062

Hydrogen Production by Hydrolyzing Zn Nano-Particles in a Cyclone Reactor
p.1066

Effect of Minor Sc, Zr and Ti Additions on the Microstructures and the Mechanical Properties of Pure Aluminium
p.1071

Research on Microstructure and Oxidation Resistance of Double Glow Plasma Discharge Surface Titanizing on CrZrCu Alloy
p.1079

Effects of Yttrium on Microstructure and Mechanical Properties of In Situ (Al₂O₃+Al₃Zr)p/A356 Composites
p.1083

Simulation on Displacement Characteristics of Variable Displacement of Double-Action Vane Pump
p.1088

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Hydrogen Production by Hydrolyzing Zn Nano-Particles in a Cyclone Reactor

Abstract:

A new experimental system is presented to make hydrogen by hydrolyzing Zn nano-particles in a cyclone reactor, in which the chemical reaction and gas-solid separation are carried out simultaneously. The gas-solid form a three-dimensional, turbulent flow-field induced by strong revolving force. The turbulent moving improves the efficiency of heat and mass transfer, which is favorable to chemical reaction. And the Zn nano-particles of 10-20nm preheated at about 523K can react with water steam rapidly. XRD and TEM analysis shows that the solid product consists of ZnO and Zn and has a blended morphology of nano-rods and nano-flakes. The gas-solid separation efficiency primarily depends on the inlet velocity when the particle size distribution is determined, and the particle resident time in the reactor has close relation to Reynolds number of gas inlet. It is confirmed that the steam inlet velocity of 10m/s and Ar inlet velocity of 5m/s are favorable.