JPS55165108A - Treatment of caustic alkali waste liquid - Google Patents

Treatment of caustic alkali waste liquid

Info

Publication number
JPS55165108A
JPS55165108A JP7116379A JP7116379A JPS55165108A JP S55165108 A JPS55165108 A JP S55165108A JP 7116379 A JP7116379 A JP 7116379A JP 7116379 A JP7116379 A JP 7116379A JP S55165108 A JPS55165108 A JP S55165108A
Authority
JP
Japan
Prior art keywords
hydrocarbon
gas
caustic alkali
waste liquid
duty
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
JP7116379A
Other languages
Japanese (ja)
Inventor
Kunio Asakura
Yoji Watanabe
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP7116379A priority Critical patent/JPS55165108A/en
Publication of JPS55165108A publication Critical patent/JPS55165108A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make the separation of hydrocarbon oil easier by blowing inert gas or light-duty hydrocarbon gas into the caustic alkali waste liquid discharged from the scrubbing tower of hydrocarbon cracked gas.
CONSTITUTION: The cracked gas obtained through thermal cracking or catalytic cracking of hydrocarbon is passed through an alkali scrubbing tower 1, whereby it is removed of acidic gas. The waste caustic alkali liquid extracted from the tower bottom is sent into the middle stage of a bubble column 3 and inert gas or light- duty hydrocarbon gas such as lower alkane is blown through the porous plate 4 in the bottom part to expell the hydrocarbon gas dissolved supersaturatedly in the waste liquid and let the dispersing hydrocarbon oil cohere and float. The hydrocarbon gas is exhausted through an exhaust pipe 7 and the hydrocarbon oil scum is separated to the upper part of a static separating vessel 8. The caustic alkali liquid having been purified is extracted to the lower part of the static separating vessel and is separated to two phases.
COPYRIGHT: (C)1980,JPO&Japio
JP7116379A 1979-06-08 1979-06-08 Treatment of caustic alkali waste liquid Pending JPS55165108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7116379A JPS55165108A (en) 1979-06-08 1979-06-08 Treatment of caustic alkali waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7116379A JPS55165108A (en) 1979-06-08 1979-06-08 Treatment of caustic alkali waste liquid

Publications (1)

Publication Number Publication Date
JPS55165108A true JPS55165108A (en) 1980-12-23

Family

ID=13452687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7116379A Pending JPS55165108A (en) 1979-06-08 1979-06-08 Treatment of caustic alkali waste liquid

Country Status (1)

Country Link
JP (1) JPS55165108A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0709121A3 (en) * 1994-10-27 1996-05-08 Chevron Usa Inc
US6221254B1 (en) * 1998-08-25 2001-04-24 J. Rodney Dickerson Purification of liquid streams using carbon dioxide
JP2014533194A (en) * 2011-09-29 2014-12-11 キャメロン インターナショナル コーポレイション Equipment for treating interfacial emulsions, water and solids

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50133657A (en) * 1974-04-11 1975-10-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50133657A (en) * 1974-04-11 1975-10-23

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0709121A3 (en) * 1994-10-27 1996-05-08 Chevron Usa Inc
US6221254B1 (en) * 1998-08-25 2001-04-24 J. Rodney Dickerson Purification of liquid streams using carbon dioxide
JP2014533194A (en) * 2011-09-29 2014-12-11 キャメロン インターナショナル コーポレイション Equipment for treating interfacial emulsions, water and solids
US10913013B2 (en) 2011-09-29 2021-02-09 Schlumberger Technology Corporation System and method to process effluent brine and interface rag from an oil dehydration/desalting system

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