Reactive adsorption desulfurization over a Ni/ZnO adsorbent prepared by homogeneous precipitation

Aihua KONG, Yanyu WEI, Yonghong LI

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PDF(208 KB)
Front. Chem. Sci. Eng. ›› 2013, Vol. 7 ›› Issue (2) : 170-176. DOI: 10.1007/s11705-013-1322-9
RESEARCH ARTICLE

Reactive adsorption desulfurization over a Ni/ZnO adsorbent prepared by homogeneous precipitation

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Abstract

A high-performance Ni/ZnO adsorbent was prepared by homogeneous precipitation using urea hydrolysis and characterized by N2 adsorption-desorption, X-ray diffraction (XRD), and scanning electron microscope (SEM). The adsorbent was applied to the deep desulfurization of gasoline and showed a high breakthrough sulfur capacity and a remarkably high volume hourly space velocity. The effects of coexisting olefins in gasoline as well as adsorptive conditions on the adsorptive performance were examined. It was found that olefins in gasoline had a slightly inhibiting effect on the desulfurization performance of the adsorbent. The optimum conditions were 673 K, 1.0 Mpa with a volume hourly space velocity of 60 h-1. Under the optimum conditions, ultralow sulfur gasoline could be produced and the breakthrough sulfur capacity of the adsorbent was 360 mg-s/g-sorb for the model gasoline.

Keywords

nickel / reactive adsorption / desulfurization / thiophene

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Aihua KONG, Yanyu WEI, Yonghong LI. Reactive adsorption desulfurization over a Ni/ZnO adsorbent prepared by homogeneous precipitation. Front Chem Sci Eng, 2013, 7(2): 170‒176 https://doi.org/10.1007/s11705-013-1322-9

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Acknowledgements

The authors thank the Program for Changjiang Scholars and Innovative Research Team in University (IRT0936).

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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