JPS55165108A - Treatment of caustic alkali waste liquid - Google Patents
Treatment of caustic alkali waste liquidInfo
- 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
Links
Landscapes
- Physical Water Treatments (AREA)
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50133657A (en) * | 1974-04-11 | 1975-10-23 |
-
1979
- 1979-06-08 JP JP7116379A patent/JPS55165108A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50133657A (en) * | 1974-04-11 | 1975-10-23 |
Cited By (4)
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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