Composite-Bed Reactor for Upgrading Coal-Derived Liquids. Quarterly Report No. 6, January 1-March 31, 1985

摘要

Three experimental runs were completed on the catalyst zone study at conditions of 400 exp 0 C (752 exp 0 F), LHST of 1.9 h, 10.3 MPa (1500 psig), with equal amounts of catalysts in the top and bottom zones and processing a 10% SRC in process solvent. All three runs contained a commercial Ni-Mo catalyst in the bottom zone but the top zones contained, respectively, Co-Mo, Ni-W, and Ni-Mo commercial catalysts. These runs are part of a six experimental run set involving various combinations of catalyst types in the two reactor zones. Some of the liquid product and spent catalyst analyses have been completed. These three experimental runs showed a lower initial nitrogen removal than for the two experimental runs, CZA and CZB, reported in the last quarterly (40 to 55% removal versus 55 to 90% removal). Those runs with the higher percent removal contained Ni-Mo catalysts in both zones. The results on hydrogen-to-carbon atom ratios show little differentiation between any of the catalyst combinations investigated thus far. Loss in catalyst surface area and pore volume occurs in the top zone to a greater extent than in the lower zone. Furthermore, each zone itself has a gradient from top to bottom. 3 figs., 5 tabs. (ERA citation 10:025120)