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U.S. Department of Energy
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Two-stage liquefaction catalyst evaluation. Final report. [Shell 324M, Amocat IC and Shell S-317]

Technical Report ·
OSTI ID:6464090
The objective of this program was to evaluate selected catalysts in comparison with Shell 324M catalyst for effectiveness in the hydrotreater at EPRI's Wilsonville coal liquefaction pilot plant. HRI's standard CASTAL test, used to evaluate catalysts for ebullated-bed hydroprocessing of residual petroleum oils, was modified for use with a feedstock made by blending first-stage heavy distillate and deashed first-stage residuum samples obtained from Wilsonville. The modified test was used to compare Shell 324M, which has a unimodal pore size distribution, with Amocat 1C and Shell S-317. The latter two catalysts have bimodal pore size distributions with substantial macropore (diameter >500A) volume. The catalysts differed substantially in their effectiveness for removal of titanium and calcium, in the order Shell S-317 > Amocat 1C > Shell 324M. These differences in demetallization activity could be correlated with the pore size distribution. Run products were also tested for nitrogen contents of the 650 to 850/sup 0/F distillate fraction and for conversion of Ramsbottom Carbon Residue (RCR) and pentane- and toluene-insoluble materials in the 850/sup 0/F/sup +/ residua. Selected whole product samples were tested for donor solvent quality in microautoclave tests with Illinois No. 6 coal. The differences among the catalysts with respect to all of these functions were small compared to the differences in demetallization activity. Overall, differences in performance among the three catalysts were too small to indicate clear superiority of one catalyst over the others. 11 figs., 11 tabs.
Research Organization:
Hydrocarbon Research, Inc., Lawrenceville, NJ (USA)
OSTI ID:
6464090
Report Number(s):
EPRI-AP-4378; ON: TI86920121
Country of Publication:
United States
Language:
English