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GB1508021A - Process for taking a hydrogenation reactor out of operation - Google Patents

Process for taking a hydrogenation reactor out of operation

Info

Publication number
GB1508021A
GB1508021A GB16588/75A GB1658875A GB1508021A GB 1508021 A GB1508021 A GB 1508021A GB 16588/75 A GB16588/75 A GB 16588/75A GB 1658875 A GB1658875 A GB 1658875A GB 1508021 A GB1508021 A GB 1508021A
Authority
GB
United Kingdom
Prior art keywords
reactor
temperature
oxygen
feed
purge 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
GB16588/75A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 NLAANVRAGE7405565,A external-priority patent/NL184371C/en
Priority claimed from NL7502315A external-priority patent/NL7502315A/en
Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1508021A publication Critical patent/GB1508021A/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
    • B01J33/00—Protection of catalysts, e.g. by coating
    • 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
    • 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
    • C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
    • C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

1508021 Passivating catalysts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 22 April 1975 [25 April 1974 27 Feb 1975] 16588/75 Headings B1E and B1F A process for taking out of operation a catalyst-filled reactor in which the pyrophoric character of the catalyst is entirely removed, the reactor being used for the catalytic hydrogenation of a liquid or gaseous feed by passing the feed over the catalyst in the presence of added hydrogen comprises (a) if the temperature in the reactor is above 300‹C it is reduced to below 300‹C and kept at below 300‹C until the reactor is opened, (b) the supply of feed is discontinued and the added hydrogen is replaced by an inert gas, before, after or during the said reduction in temperature if the temperature is reduced, (c) the reactor is purged with a purge gas consisting of the inert gas for some time, (d) subsequently an oxygen-comprising gas is introduced into the purge gas in such a quantity that the oxygen content thereof is below 1% by volume whilst the temperature in the reactor is increasing as a result of the presence of oxygen therein, whereby the temperature in the reactor is maintained below 300‹C, (e) when the temperature in the reactor no longer increases as a result of the presence of oxygen therein, the oxygen content of the purge gas is increased and the supply of purge gas is continued until no further appreciable heat generation in the reactor is found to occur, (f) the oxygen partial pressure of the purge gas is brought to at least 0.2 kg/cm<SP>2</SP>, and (g) the reactor is opened. The feed may consist of off-gas from a Claus plant for the preparation of elemental sulphur from sulphur compounds-containing gases or the reactor may have been used for the catalytic desulphurization of liquid hydrocarbon feed. The catalyst may consist of cobalt sulphide and/or nickel sulphide combined with molybdenum sulphide and/or tungsten sulphide, on a carrier at least the greater part of which consists of silica and/or alumina.
GB16588/75A 1974-04-25 1975-04-22 Process for taking a hydrogenation reactor out of operation Expired GB1508021A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NLAANVRAGE7405565,A NL184371C (en) 1974-04-25 1974-04-25 METHOD FOR DECOMMISSIONING A HYDROGENATION REACTOR, AND A METHOD FOR THE CATALYTIC HYDROGENATION OF A SULFUR COMPOUNDS.
NL7502315A NL7502315A (en) 1975-02-27 1975-02-27 Interrupting operation in catalytic hydrogenation reactors - by cooling purging and slowly introducing oxygen before opening

Publications (1)

Publication Number Publication Date
GB1508021A true GB1508021A (en) 1978-04-19

Family

ID=26644986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16588/75A Expired GB1508021A (en) 1974-04-25 1975-04-22 Process for taking a hydrogenation reactor out of operation

Country Status (10)

Country Link
JP (1) JPS5854854B2 (en)
CA (1) CA1062641A (en)
DE (1) DE2517869A1 (en)
DK (1) DK172475A (en)
ES (1) ES436838A1 (en)
FR (1) FR2268859B1 (en)
GB (1) GB1508021A (en)
IT (1) IT1037563B (en)
NO (1) NO146893C (en)
SE (1) SE416817B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9604201B2 (en) 2013-03-14 2017-03-28 L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude Method of treatment for a catalytic reactor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144863B (en) * 1956-01-11 1963-03-07 Exxon Research Engineering Co Process for the regeneration of catalysts containing molybdenum
US3033802A (en) * 1959-05-22 1962-05-08 Chemetron Corp Stabilization of reduced metal catalyst and apparatus therefor
NL283488A (en) * 1961-09-21
BE757482R (en) * 1969-04-01 1971-03-16 Chemetron Corp PROCESS FOR THE PRODUCTION OF REDUCED AND STABILIZED COPPER OXIDE-ZINC OXIDE CATALYZERS FOR THE REACTION OF TRANSFORMATION OF GAS TO WATER AND NEW PRODUCTS THUS OBTAINED
NL7104842A (en) * 1971-04-10 1972-10-12 Passivating pyrophoric powder - by suspending in org liquid and treating with oxygen
US3764558A (en) * 1971-06-24 1973-10-09 Sun Oil Co Pennsylvania Constant low oxygen concentration gas regeneration of refining catalysts
US3838066A (en) * 1971-10-01 1974-09-24 Standard Oil Co Method for stabilizing pyrophoric materials in a catalyst bed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9604201B2 (en) 2013-03-14 2017-03-28 L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude Method of treatment for a catalytic reactor

Also Published As

Publication number Publication date
AU8034175A (en) 1976-10-28
FR2268859B1 (en) 1977-04-15
CA1062641A (en) 1979-09-18
SE416817B (en) 1981-02-09
NO146893B (en) 1982-09-20
NO751432L (en) 1975-10-28
FR2268859A1 (en) 1975-11-21
IT1037563B (en) 1979-11-20
DE2517869A1 (en) 1975-11-13
JPS5854854B2 (en) 1983-12-07
SE7504666L (en) 1975-10-27
ES436838A1 (en) 1976-12-01
NO146893C (en) 1982-12-29
DK172475A (en) 1975-10-26
DE2517869C2 (en) 1988-02-18
JPS50154177A (en) 1975-12-11

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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