Journal
CHEMICAL ENGINEERING COMMUNICATIONS
Volume 194, Issue 7, Pages 938-945Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00986440701232387
Keywords
adsorption desulfurization; dibenzothiophene (DBT); impregnation; in situ chemical reduction method; Ni; W; gamma-Al2O3
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A kind of desulfurization adsorbent, (Ni/W)-gamma-Al2O3 microsphere, was prepared by a new method of in situ chemical reduction. The adsorbent consists of active components (transition metals Ni and W) and a carrier (gamma-Al2O3). Ni and W in gamma-Al2O3 microspheres are fine in size and can be distributed homogeneously on the surface and inside of the gamma-Al2O3 carrier. The desulfurization of the adsorbent made by the in situ chemical reduction method was carried out in model gasoline. Its desulfurization capacity increases 23% in comparison with that made by the conventional impregnation method. The composition and configuration of adsorbents were analyzed by scanning electron microscopy (SEM), electron energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD). The in situ chemical reduction method offers a new and promising method for preparation of desulfurization adsorbents containing active components.
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