JPS5648223A - Treating method of exhaust gas of alkylphenol production process - Google Patents

Treating method of exhaust gas of alkylphenol production process

Info

Publication number
JPS5648223A
JPS5648223A JP12399179A JP12399179A JPS5648223A JP S5648223 A JPS5648223 A JP S5648223A JP 12399179 A JP12399179 A JP 12399179A JP 12399179 A JP12399179 A JP 12399179A JP S5648223 A JPS5648223 A JP S5648223A
Authority
JP
Japan
Prior art keywords
exhaust gas
methanol
conduit
recovered
washing
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.)
Granted
Application number
JP12399179A
Other languages
Japanese (ja)
Other versions
JPS621283B2 (en
Inventor
Mitsuyoshi Hashimoto
Hiroji Miyagawa
Mitsuo Onobusa
Shoei Kudo
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP12399179A priority Critical patent/JPS5648223A/en
Publication of JPS5648223A publication Critical patent/JPS5648223A/en
Publication of JPS621283B2 publication Critical patent/JPS621283B2/ja
Granted 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
    • Y02P20/10—Process efficiency
    • 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

Landscapes

  • Treating Waste Gases (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To recover the effective components other than methanol and methanol and improve exhaust gas treatment efficiency by washing the exhaust gas of the production process for methylphenols with an aqueous methanol soln. then washing the same with water.
CONSTITUTION: The exhaust gas produced at the time of producing methylphenols by causing vapor-phase reaction of phenol and methanol is admitted through a conduit 2 into a washing tower 1 after it has been heat-recovered or cooled down to≤ 90°C in temperature. At this time, an aqueous methanol soln. of ≥10mol in concn. which has b.p. higher than the exhaust gas temp. is supplied through a conduit 8 to the tower top to wash the exhaust gas. Then, the effective components other than the methanol are recovered and are taken out through a conduit 3. On the other hand, the exhaust gas having been washed flows through a conduit 4 into a scrubber 5, where it is washed by the water flowing down from a conduit 10 and the methanol is recovered and is taken out into a tank 13. The treated exhaust gas becomes only the inert gas component and is exhausted through a conduit 9. The aqueous methanol soln. recovered into the tank 13 is controlled to predetermined concn. and is supplied via a heat exchanger 11 into the washing tower 1.
COPYRIGHT: (C)1981,JPO&Japio
JP12399179A 1979-09-28 1979-09-28 Treating method of exhaust gas of alkylphenol production process Granted JPS5648223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12399179A JPS5648223A (en) 1979-09-28 1979-09-28 Treating method of exhaust gas of alkylphenol production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12399179A JPS5648223A (en) 1979-09-28 1979-09-28 Treating method of exhaust gas of alkylphenol production process

Publications (2)

Publication Number Publication Date
JPS5648223A true JPS5648223A (en) 1981-05-01
JPS621283B2 JPS621283B2 (en) 1987-01-12

Family

ID=14874327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12399179A Granted JPS5648223A (en) 1979-09-28 1979-09-28 Treating method of exhaust gas of alkylphenol production process

Country Status (1)

Country Link
JP (1) JPS5648223A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01146838A (en) * 1987-12-02 1989-06-08 Asahi Chem Ind Co Ltd Method for recovering phenol and phenolic compound methylated at o-position
JPH01146836A (en) * 1987-12-03 1989-06-08 Asahi Chem Ind Co Ltd Method for recovering phenol and ortho-methylated phenol compound
CN105536440A (en) * 2015-12-15 2016-05-04 七台河宝泰隆煤化工股份有限公司 Low temperature methanol washing device
CN111408248A (en) * 2020-04-28 2020-07-14 山东济新环境工程有限公司 Waste gas treatment process in alkyl ketene dimer production

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086473A (en) * 1973-12-05 1975-07-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086473A (en) * 1973-12-05 1975-07-11

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01146838A (en) * 1987-12-02 1989-06-08 Asahi Chem Ind Co Ltd Method for recovering phenol and phenolic compound methylated at o-position
JPH0468297B2 (en) * 1987-12-02 1992-11-02 Asahi Chemical Ind
JPH01146836A (en) * 1987-12-03 1989-06-08 Asahi Chem Ind Co Ltd Method for recovering phenol and ortho-methylated phenol compound
JPH0468298B2 (en) * 1987-12-03 1992-11-02 Asahi Chemical Ind
CN105536440A (en) * 2015-12-15 2016-05-04 七台河宝泰隆煤化工股份有限公司 Low temperature methanol washing device
CN111408248A (en) * 2020-04-28 2020-07-14 山东济新环境工程有限公司 Waste gas treatment process in alkyl ketene dimer production
CN111408248B (en) * 2020-04-28 2022-06-21 山东济新环境工程有限公司 Waste gas treatment process in alkyl ketene dimer production

Also Published As

Publication number Publication date
JPS621283B2 (en) 1987-01-12

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