| 摘要 |
For characterizing a catalyst, particularly a catalyst useful in refining of oil residues, by determination of its conversion and coking activities, the steps of: (a) impregnating the catalyst with a hydrocarbon mixture, (b) heating the impregnated catalyst, at a rate of temperature increase ranging from 2 DEG C./min to 50 DEG C./sec, under inert gas in a furnace. up to a temperature theta 2 ranging from 300 DEG C. to 380 DEG C. and measuring, by means of a hydrocarbon detector 4, a signal Q representative of the hydrocarbons generated during step b, (c) continuing the heating under the inert gas up to a temperature theta 3 ranging from 500 DEG C. to 1000 DEG C. and measuring, by means of detector 4, a signal P representative of hydrocarbons generated during step c, (d) subjecting the residue to a combustion in another furnace 6 and determining a combustion signal R, by means of a suitable detector 11, and (e) deducing from signals Q, P and R the conversion and coking activities of the catalyst.
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