| 摘要 |
<p>Process for forming a catalyst for the hydrodenitrogenation of an organic feedstock, which includes (a) preparing a precatalyst comprising (i) nickel and/or cobalt, (ii) chromium and/or molybdenum and/or tungsten, and (iii) an inorganic support; (b) heating the precatalyst of step (a) with a source of sulfide in a first non-oxidizing gas at a temperature and for a time effective to presulfide the precatalyst; (c) adding in a second non-oxidizing atmosphere to the sulfided precatalyst of step (b), an organometallic transition metal moiety selected from compounds of iridium, rhodium, iron, ruthenium, tungsten or mixtures thereof for a time and at a temperature effective to chemically combine the components; and (d) optionally heating the chemically combined catalyst of step (c) in vacuum to remove residual volatile organic materials. The invention further includes the use of the catalysts obtained for the hydrodenitrogenation of organic feedstocks including a crude petroleum residue, a petroleum fraction, an oil shale fraction, a tar sands fraction, a coal derived powder, a coal derived liquid or mixtures thereof. The process reduces the amount of hydrogen usually needed to obtain hydrodenitrogenation and more selectively produces aromatic product than saturated organic product.</p> |
