JPS56121640A - Regeneration for catalyst - Google Patents

Regeneration for catalyst

Info

Publication number
JPS56121640A
JPS56121640A JP2270980A JP2270980A JPS56121640A JP S56121640 A JPS56121640 A JP S56121640A JP 2270980 A JP2270980 A JP 2270980A JP 2270980 A JP2270980 A JP 2270980A JP S56121640 A JPS56121640 A JP S56121640A
Authority
JP
Japan
Prior art keywords
hydrogen
catalysts
gas
oxygen gas
reaction
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.)
Pending
Application number
JP2270980A
Other languages
Japanese (ja)
Inventor
Hiroyuki Tsuchiya
Yamato Asakura
Sadaji Suzuki
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2270980A priority Critical patent/JPS56121640A/en
Publication of JPS56121640A publication Critical patent/JPS56121640A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Catalysts (AREA)

Abstract

PURPOSE: To regenerate the catalysts of lowerd activity efficiently by performing isotope exchange reaction and oxy-hydrogen bonding reaction in a catalyst bed when the catalysts deteriorate.
CONSTITUTION: When catalyst activity lowers owing to poisoning of the oil dissolved in water in the production of heavy water etc., an oxygen gas is introduced into a catalyst bed 11, so that isotope exchange reaction and oxy-hydrogen reaction are effected simultaneously. In order to prevent hydrogen explosion at this time, the hydrogen gas flowing out from a condenser 4 is supplied to the upper part of an exchange reactor 3 by using a gas circulator 7. Next, an oxygen gas is introduced from an oxygen gas supplying device 8 to the upper part of an exchange reactor 3, and a hydrogen gas is supplied from a hydrogen gas supplying device 9. In this case, the hydrogen gas concn. in the reactor 3 exceeds the upper limit value of explosion and there is no likelihood for hydrogen explosion. The oil component stuck on the active points of the catalysts is reacted with the oxygen gas and is decomposed away by such method, and the activity of the catalysts is restored.
COPYRIGHT: (C)1981,JPO&Japio
JP2270980A 1980-02-27 1980-02-27 Regeneration for catalyst Pending JPS56121640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2270980A JPS56121640A (en) 1980-02-27 1980-02-27 Regeneration for catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2270980A JPS56121640A (en) 1980-02-27 1980-02-27 Regeneration for catalyst

Publications (1)

Publication Number Publication Date
JPS56121640A true JPS56121640A (en) 1981-09-24

Family

ID=12090359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2270980A Pending JPS56121640A (en) 1980-02-27 1980-02-27 Regeneration for catalyst

Country Status (1)

Country Link
JP (1) JPS56121640A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9670064B1 (en) * 2012-09-27 2017-06-06 Consolidated Nuclear Security, LLC Production of heavy water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9670064B1 (en) * 2012-09-27 2017-06-06 Consolidated Nuclear Security, LLC Production of heavy water

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