TH3732B - Activating catalyst - Google Patents

Abstract

Process for activating catalysts The catalyst, consisting of 3-60 parts cobalt by weight, and at least one metal selected from zirconium, titanium and 0.01-100 parts chromium by weight per silica-alumina or silica-alumina. 100 parts by weight And which were prepared by massage and / or saturation diffusion. Will come into contact with hydrogen or hydrogen-containing gas at temperatures between 200 and 350C and sub-hydrogen pressures between 0.001 and 75 bar and at that in

Claims (9)

1. Process for activating catalysts Characterized as a catalyst consisting of 3-60 parts by weight of cobalt and at least one other metal selected from zirconium, titanium and 0.01-100 parts by weight of chromium per silica, alumina, or silica-alumina. 100 parts by weight and which are prepared by massage and/or diffusion It is exposed to hydrogen or hydrogen-containing gas at temperatures between 200 and 350 C and hydrogen digestion pressures between 0.001 and 75 bar, and that during activation the hydrogen digestion pressure gradually increases or increases. periodically from initial value (PH2)i to final value (PH2)u in such a way that the relationship (PH2)u > 5x (PH2)i 2. The process as stated in Claim 1 that shows that The process is made at temperatures below 325 C, hydrogen digestion pressures below 50 bar, and space velocity of 50-100 thousand. Standard liter/liter/hour 3. Processes as claimed in Claim 2 that characterize that processes performed at spaces velocity are 500-10,000. Standard liter/liter/hour 4. A process as held in one of Claims 1-3 that characterizes that a process is performed using (PH2)i between 0.01 and 10 bar. One of the claims of Claims 1-4 characterizing that the process is performed using (PH2)I, as would give the relation (chemical formula) where D = spesvelositia. in standard liters/l/hour (PH2)i = initial hydrogen digesting pressure in bar (PTot)i = initial total pressure in bar Si = internal surface area of catalyst in m2/ ml 5. L = Co load of catalyst in mg Co/mL and Z = Zr, Ti or Cr load of catalyst in mg of metal/100 mg of backing. 6. Processes as claimed in one of Claims 1-5 that characterize that the process is performed using (PH2)u between 0.1 and 20 bar. 7. A process, as claimed in one of Claims 1-6, that the process is performed in such a way that the relationship (PH2)u > 10 x (PH2)i is obtained. 8. The process, as it is claimed in one of Claims 1-7, characterizes that the catalyst gives a relationship (3 + 4R) > LSi > (0.3 + 0.4R). where L = the total volume of cobalt present on the catalyst expressed in mLCo/mL, Si = the internal surface area of the catalyst, expressed in m2/mL, and R = the weight ratio between the cobalt content which The island was captured on the catalyst by kneading and the total amount of cobalt present on the catalyst. 9. A process as claimed in one of Claims 1-8 characterizing that the catalyst consists of 15-50 parts by weight of cobalt and 0.1-5 parts of another metal. by weight If during preparation the cobalt settles first and another metal settles the next. or another metal 5-40 parts by weight If, during the preparation of another metal binds first and cobalt continues to bind, per 100 parts by weight 1 of the substrate 0. The process as claimed in one of Claims 1-9 characterizing that the catalyst contains zirconium as another metal and silica as a backing.