GB971551A - Treatment of poisoned silica catalysts - Google Patents

Treatment of poisoned silica catalysts

Info

Publication number
GB971551A
GB971551A GB3692460A GB3692460A GB971551A GB 971551 A GB971551 A GB 971551A GB 3692460 A GB3692460 A GB 3692460A GB 3692460 A GB3692460 A GB 3692460A GB 971551 A GB971551 A GB 971551A
Authority
GB
United Kingdom
Prior art keywords
silica
contact
chlorinating agent
remove
carbon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3692460A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinclair Refining Co
Original Assignee
Sinclair Refining Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US54405A external-priority patent/US3122510A/en
Application filed by Sinclair Refining Co filed Critical Sinclair Refining Co
Publication of GB971551A publication Critical patent/GB971551A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/20—Regeneration or reactivation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Silica or clay, containing Ni or V as poisoning metal and possibly also Fe, is treated to remove the contaminants by contact at up to 1000 DEG F. with an anhydrous chlorinating agent and subsequently contacting with a liquid aqueous medium. Preferably, when V is present, the silica or clay is first contacted with O2-containing gas to remove carbonaceous deposits and to convert the V to higher valency states. Prior to chlorination, the poisoning metal may be sulphides by contact with e.g. H2S. The chlorinating agent may be (a) Cl2, (b) a vaporizable chlorine compound of carbon or sulphur, or (c) a mixture of (a) and/or HCl with (b); when (b) is a carbon compound it may be made in situ from Cl2 and a hydrocarbon. Component (b) may be, e.g., CCl4, S2Cl2 or SCl2. Example XIII describes treatment of a proprietary acid-activated montmorilloxide with (i) air at 1000 DEG F., (ii) H2S at 1050 DEG F., (iii) Cl2/CCl4 at 600 DEG F. and thereafter washing, to reduce its content of Ni, V and Fe.ALSO:Silica catalysts containing Ni or V as poisoning metal and possibly Fe, are treated to remove the contaminants by contact at up to 1000 DEG F. with an anhydrous chlorinating agent and subsequently contacting with a liquid aqueous medium. Preferably, when V is present, the catalyst is first regenerated with O2-containing gas at at least 1000 DEG F. to remove carbonaceous deposits and to convert the V to higher valency states. Prior to chlorination, the poisoning metal may be sulphided by contact with, e.g., H2S. The chlorinating agent may be (a) Cl2, (b) a vaporizable chlorine compound of carbon or sulphur or (c) a mixture of (a) and/or HCl with (b); when (b) is a carbon compound it may be made in situ from Cl2 and a hydrocarbon. Component (b) may be, e.g., CCl4, S2Cl2 or SCl2. Specified catalysts are silica-alumina optionally containing also a kaolinite, halloysite or an activated clay; silica-zirconia; silica-alumina-zirconia; acid-activated montmorillonite. U.S.A. Specifications 2,481,253, 2,488,718, 2,488,744, 2,668,798 and 2,693,455 are referred to.
GB3692460A 1959-10-28 1960-10-27 Treatment of poisoned silica catalysts Expired GB971551A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84919959A 1959-10-28 1959-10-28
US54405A US3122510A (en) 1960-09-07 1960-09-07 Method of removing nickel and vanadium from synthetic gel silica-based catalysts

Publications (1)

Publication Number Publication Date
GB971551A true GB971551A (en) 1964-09-30

Family

ID=26732993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3692460A Expired GB971551A (en) 1959-10-28 1960-10-27 Treatment of poisoned silica catalysts

Country Status (1)

Country Link
GB (1) GB971551A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484439A1 (en) * 1979-12-21 1981-12-18 Nippon Oil Co Ltd FLUIDIZED CATALYTIC CRACKING OF RESIDUAL DISTILLATION OILS
US7638039B2 (en) 2004-06-15 2009-12-29 Cormetech, Inc. In-situ catalyst replacement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484439A1 (en) * 1979-12-21 1981-12-18 Nippon Oil Co Ltd FLUIDIZED CATALYTIC CRACKING OF RESIDUAL DISTILLATION OILS
US7638039B2 (en) 2004-06-15 2009-12-29 Cormetech, Inc. In-situ catalyst replacement

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