GB729806A - Improvements in or relating to a method of controlling the water content of a regenerated finely-divided catalyst - Google Patents

Improvements in or relating to a method of controlling the water content of a regenerated finely-divided catalyst

Info

Publication number
GB729806A
GB729806A GB15200/53A GB1520053A GB729806A GB 729806 A GB729806 A GB 729806A GB 15200/53 A GB15200/53 A GB 15200/53A GB 1520053 A GB1520053 A GB 1520053A GB 729806 A GB729806 A GB 729806A
Authority
GB
United Kingdom
Prior art keywords
catalyst
zone
regeneration
water content
gas
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
GB15200/53A
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.)
Standard Oil Development Co
Original Assignee
Standard Oil Development 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
Application filed by Standard Oil Development Co filed Critical Standard Oil Development Co
Publication of GB729806A publication Critical patent/GB729806A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G35/00—Reforming naphtha
    • C10G35/04—Catalytic reforming
    • C10G35/10—Catalytic reforming with moving catalysts
    • C10G35/14—Catalytic reforming with moving catalysts according to the "fluidised-bed" technique
    • 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
    • B01J38/00—Regeneration or reactivation of catalysts, in general
    • B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
    • B01J38/12—Treating with free oxygen-containing gas
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)

Abstract

In the regeneration of a catalyst in the form of a dense fluidized bed 12 with an oxidizing gas to burn off carbonaceous deposits, the water content of the regenerated catalyst is controlled by passing a major proportion of the catalyst from the fluidized bed through a first stripping zone 24 in countercurrent with a dry inert gas introduced at 26, passing a minor proportioh via openings 32 through a second stripping zone 30, within and in heat exchange relationship with the fluidized bed, and contacting <PICT:0729806/III/1> the minor proportion of catalyst at elevated temperature in countercurrent flow with dry inert gas introduced at 34, stripping in zone 30 being for a substantially longer time than in zone 24 in order to remove substantially all the moisture from the catalyst; streams of catalyst from the two stripping zones are combined in line 28 to produce a regenerated catalyst having a desired water content. Regeneration of a hydroforming catalyst is described, catalyst being introduced at 16 and regenerating p gas at 14; the pressure may be 200 p.s.i.g. or more and the temperature 1050 DEG - 1300 DEG F.; suitable catalyst are oxides of molybdenum, chromium, or tungsten, supported on active alumina or zinc aluminate. The inert gas used may be formed by burning pure carbon in air or by cooling the flue gas from the regeneration to about 100 DEG F. to condense out water; the water content of the scrubbing gas is preferably not greater than 1 mole per cent. A gas containing hydrogen may be introduced into zone 30 via line 38 in order to reduce catalyst which has become oxidized during regeneration. The scrubbing zone 30 operates at substantially the same temperature and pressure as the regeneration zone, and the catalyst residence time in zone 30 may be 10-60 minutes or 10-100 times the residence time in zone 24. The rate of flow of catalyst through zone 30 is controlled by valve 42.
GB15200/53A 1952-09-30 1953-06-01 Improvements in or relating to a method of controlling the water content of a regenerated finely-divided catalyst Expired GB729806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US729806XA 1952-09-30 1952-09-30

Publications (1)

Publication Number Publication Date
GB729806A true GB729806A (en) 1955-05-11

Family

ID=22110975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15200/53A Expired GB729806A (en) 1952-09-30 1953-06-01 Improvements in or relating to a method of controlling the water content of a regenerated finely-divided catalyst

Country Status (2)

Country Link
FR (1) FR1082961A (en)
GB (1) GB729806A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987487A (en) * 1955-10-14 1961-06-06 Phillips Petroleum Co Catalyst activation
WO2016209680A1 (en) 2015-06-25 2016-12-29 Uop Llc Methods for catalyst stripping

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987487A (en) * 1955-10-14 1961-06-06 Phillips Petroleum Co Catalyst activation
WO2016209680A1 (en) 2015-06-25 2016-12-29 Uop Llc Methods for catalyst stripping
EP3313572A4 (en) * 2015-06-25 2019-03-27 Uop Llc Methods for catalyst stripping
US10507462B2 (en) 2015-06-25 2019-12-17 Uop Llc Methods for catalyst stripping

Also Published As

Publication number Publication date
FR1082961A (en) 1955-01-04

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