کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1273069 | 1497513 | 2013 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Glycerol steam reforming in a bench scale continuous flow heat recovery reactor Glycerol steam reforming in a bench scale continuous flow heat recovery reactor](/preview/png/1273069.png)
• Glycerol was successfully gasified by a new diesel engine waste heat recovery system.
• Detailed energy efficiency data was reported for glycerol steam reforming.
• Gas fraction, cold gas efficiency, syngas heat value and composition were analyzed.
• A normalized heat value of 140% and a cold gas efficiency of 87% were obtained.
In the present study glycerol was successfully gasified using a diesel engine waste heat recovery system obtaining hydrogen and methane rich gaseous products. The reforming reactor was equipped with a vaporization pre-chamber to ensure uniform reactants distribution and a fixed reaction bed, being mounted in countercurrent flow configuration with the engine combustion gases stream. Accordingly, the reactions were conducted at gradually increased temperature conditions; starting at around 300 °C in the top section of the reaction bed and finishing in a controlled outlet bed temperature of 600–800 °C. When compared to homogeneous temperature reactors, the configuration used here produced a syngas of higher methane and ethylene contents. With regards to the reactor performance, syngas lower heat values of more than 22 MJ/kg were achieved with glycerol feed concentrations within 50–70% and outlet bed temperatures above 700 °C, corresponding to cold gas efficiencies of around 85%. The present results indicate that glycerin can be utilized as a syngas feedstock for steam reforming processes based on waste heat recovery.
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 32, 25 October 2013, Pages 13991–14001