In this paper NiW/γ-Al2O3catalysts were prepared by consecutive impregnation of a W/γ-Al2O3 catalyst with an aqueous solution nickel salt. The structural control the ion precursor in was achieved addition 1, 2-cyclohexanediamine-N, N, N’, N’-tetraacetic acid (CyDTA) as chelating agent at different pH. influence sulfidation pressure (1 bar vs 40 bar) on activity and structure NiW catalysts inves...