DFT study of bio-oil decomposition mechanism on a Co stepped surface: Acetic acid as a model compound

2015 ◽  
Vol 40 (1) ◽  
pp. 330-339 ◽  
Author(s):  
Xinbao Li ◽  
Shurong Wang ◽  
Yingying Zhu ◽  
Guohua Yang ◽  
Pengjun Zheng
Author(s):  
Xiao-yong Zhao ◽  
Ya-ping Xue ◽  
Chang-feng Yan ◽  
Zhi-da Wang ◽  
Chang-qing Guo ◽  
...  

2013 ◽  
Vol 724-725 ◽  
pp. 769-772 ◽  
Author(s):  
Peng Fu ◽  
Wei Ming Yi ◽  
Zhi He Li ◽  
Xue Yuan Bai

The reaction thermodynamics of sorption enhanced steam reforming (SESR) of acetic acid as a model compound of bio-oil for hydrogen production were investigated and contrasted with acetic acid steam reforming (SR). The most favorable temperature for SR is approximately 650 °C. However, the optimum temperature for SESR is around 550 °C, which is about 100 °C lower than that for SR. The highest hydrogen concentration from SR is only 67%, which is below the basic requirement of hydrogen purity for fuel cells. In SESR, hydrogen purities are over 99% in 500-550 °C with a calcium oxide to acetic acid molar ratio (CAMR) of 4 and a water to acetic acid molar ratio (WAMR) greater than 6. The results show that hydrogen production from sorption enhanced steam reforming of acetic acid should be a promising direction.


2014 ◽  
Vol 160-161 ◽  
pp. 188-199 ◽  
Author(s):  
Francisco Guilherme E. Nogueira ◽  
Paulo G.M. Assaf ◽  
Hudson W.P. Carvalho ◽  
Elisabete M. Assaf

2012 ◽  
Vol 534 ◽  
pp. 141-145 ◽  
Author(s):  
Long Guo ◽  
Xin Bao Li ◽  
Qi Wang ◽  
Shu Rong Wang

In our work, acetic acid was used as a bio-oil model compound. Thermodynamic calculation of hydrogen production via steam reforming of acetic acid was attempted to investigate the effects of temperature (200-1100 °C), pressure(1-19 atm )and steam to carbon ratio (1.5-10.5) on the concentration of equilibrium product gas and H2 yield. The results show that temperature has a profound effect on the steam reforming of acetic acid. Lower pressure and higher steam to carbon ratio are in favor of higher hydrogen production.


2016 ◽  
Vol 34 (2) ◽  
pp. 305-313 ◽  
Author(s):  
Ya-ping Xue ◽  
Chang-feng Yan ◽  
Xiao-yong Zhao ◽  
Shi-lin Huang ◽  
Chang-qing Guo

2015 ◽  
Vol 69 (9) ◽  
Author(s):  
Ming-Shi Feng ◽  
Jia-Duo Liu ◽  
Fang-Bai Zhang ◽  
Li-Hong Huang

AbstractOlivine is abundant in the Earth’s upper mantle; it has applications in catalysts to enhance their stability in structures. The olivine-type catalysts were prepared by co-precipitation and hydrothermal synthesis and tested in the auto-thermal reforming (ATR) of acetic acid (AC), a model compound from bio-oil, for hydrogen production. In the meantime, the natural olivine impregnated with Ni was also tested. Characterisations of XRD, nitrogen physisorption, temperature-programmed reduction, and SEM-EDX were used to find the structure-reactivity relationship. The results indicate that the natural olivine produced a low H


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