Hydrotreatment of Nondeashed Coal-Derived Residuum: Catalyst Comparison

摘要

Four commercially available catalysts were evaluated for 100 hours in a continuous-flow unit to determine their effectiveness in the hydrotreating of nondeashed coal-derived residuum. These included Shell 324M and Shell 424 (both unimodal), and Shell 317 and Amocat 1C (both bimodal). All catalysts contained nickel and molybdenum supported on alumina; compositions were, however, different. The results showed that all catalysts performed equally well, except that the desulfurization activity of Shell 424 was substantially higher than the activities of the other catalysts. The bimodal catalysts accumulated more carbonaceous material and trace metals than the unimodal catalysts. Also, their catalytic activity was similar to the activities of the unimodal catalysts. 15 references, 4 figures, 5 tables. (ERA citation 10:017832)