Hydrotreating process with coarse and fine catalysts

摘要: A PROCESS FOR TREATING HEAVY HYDROCARBON OIL WITH HYDROGEN GAS AT HIGH PRESSURES AND TEMPERATURES IN THE PRESENCE OF PARTICULATE CATALYSTS IS DISCLOSED HEREIN. COMPRISES FEEDING HEAVEY OIL, PREFERABLY VACUUM OR ATMOSPHERIC RESIDUUM, FINE CATALYST SIZE RANGE UP TO ABOUT 600 MICRONS UPWARDLY THROUGH AN EXPANDED BED COARSE RANGING INSIZE FROM 1/33 3/8 INCH SUFFICIENT VELOCITY MAINTAIN EXPANDED, RANDOM MOTION STATE, REDUCING UPWARD ABOVE ESTABLISH BED, WITHDRAWING TREATED EFFLUENT GASES PRESSURE, TEMPERATURE ZONE BED.