GB1500036A - Reactivation of particulate catalyst masses - Google Patents

Reactivation of particulate catalyst masses

Info

Publication number
GB1500036A
GB1500036A GB22559/75A GB2255975A GB1500036A GB 1500036 A GB1500036 A GB 1500036A GB 22559/75 A GB22559/75 A GB 22559/75A GB 2255975 A GB2255975 A GB 2255975A GB 1500036 A GB1500036 A GB 1500036A
Authority
GB
United Kingdom
Prior art keywords
tar
iii
phosphoric acid
reactivation
liquid hydrocarbon
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
GB22559/75A
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.)
Honeywell UOP LLC
Original Assignee
UOP LLC
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
Application filed by UOP LLC filed Critical UOP LLC
Publication of GB1500036A publication Critical patent/GB1500036A/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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/28—Regeneration or reactivation
    • B01J27/285—Regeneration or reactivation of catalysts comprising compounds of phosphorus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Polymerization Catalysts (AREA)

Abstract

1500036 Reactivating phosphoric acid catalysts UOP Inc 23 May 1975 [3 June 1974] 22559/75 Heading B1E A particulate olefin polymerisation catalyst comprising a mixture of phosphoric acid and a natural silica material, e.g. kieselguhr, is reactivated after deactivation by deposition of tar-like polymers and carbonised hydrocarbons by (i) ceasing flow of the feed stream, (ii) inundating the entirety of the catalyst bed with a liquid hydrocarbon mixture boiling at 40-230‹C and containing 15-85% wt. aromatic hydrocarbons at a temperature 90-260‹C and a pressure of 8-20 atm. cb. within the reaction zone, to dissolve at least a portion of the tar; (iii) withdrawing the liquid hydrocarbon liquid; (iv) repeating steps (ii) and (iii) at least once; and (iv) restarting feed flow.
GB22559/75A 1974-06-03 1975-05-23 Reactivation of particulate catalyst masses Expired GB1500036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47568674A 1974-06-03 1974-06-03

Publications (1)

Publication Number Publication Date
GB1500036A true GB1500036A (en) 1978-02-08

Family

ID=23888669

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22559/75A Expired GB1500036A (en) 1974-06-03 1975-05-23 Reactivation of particulate catalyst masses

Country Status (11)

Country Link
JP (1) JPS50153790A (en)
BR (1) BR7503454A (en)
CA (1) CA1055921A (en)
CS (1) CS191266B2 (en)
DE (1) DE2524223A1 (en)
ES (1) ES438131A1 (en)
FR (1) FR2272736B1 (en)
GB (1) GB1500036A (en)
IN (1) IN143866B (en)
IT (1) IT1035834B (en)
ZA (1) ZA753372B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487693A (en) * 1977-12-23 1979-07-12 Nippon Petrochemicals Co Ltd Catalyst regeneration
US5932778A (en) * 1997-09-30 1999-08-03 Bp Amoco Corporation Shutdown process for olefin polymerization reactor
US6025534A (en) * 1998-04-07 2000-02-15 Bp Amoco Corporation Olefin polymerization process
MX2014015227A (en) * 2014-12-11 2016-06-10 Inst Mexicano Del Petróleo In-situ washing procedure to recover the catalytic activity of a deactivated hydrodesulfurization catalyst.
WO2019097720A1 (en) * 2017-11-20 2019-05-23 東京電力ホールディングス株式会社 Regenerating treatment method for catalyst and catalyst regenerating treatment device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2382318A (en) * 1942-04-08 1945-08-14 Universal Oil Prod Co Alkylation of benzene
US2658933A (en) * 1951-08-17 1953-11-10 Standard Oil Dev Co Slurry polymerization process
JPS498483A (en) * 1972-05-24 1974-01-25
JPS5324917B2 (en) * 1972-05-31 1978-07-24

Also Published As

Publication number Publication date
FR2272736B1 (en) 1981-09-25
CS191266B2 (en) 1979-06-29
CA1055921A (en) 1979-06-05
DE2524223A1 (en) 1975-12-11
BR7503454A (en) 1976-05-25
ZA753372B (en) 1976-05-26
JPS50153790A (en) 1975-12-11
ES438131A1 (en) 1977-02-01
AU8167775A (en) 1976-12-02
FR2272736A1 (en) 1975-12-26
IN143866B (en) 1978-02-18
IT1035834B (en) 1979-10-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee