FR2261976A1 - Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water - Google Patents
Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with waterInfo
- Publication number
- FR2261976A1 FR2261976A1 FR7406711A FR7406711A FR2261976A1 FR 2261976 A1 FR2261976 A1 FR 2261976A1 FR 7406711 A FR7406711 A FR 7406711A FR 7406711 A FR7406711 A FR 7406711A FR 2261976 A1 FR2261976 A1 FR 2261976A1
- Authority
- FR
- France
- Prior art keywords
- reactivation
- effluents
- purification
- water
- quenching
- 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
Links
- 230000007420 reactivation Effects 0.000 title abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052799 carbon Inorganic materials 0.000 title abstract 4
- 238000000746 purification Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 2
- 238000010791 quenching Methods 0.000 title 1
- 230000000171 quenching effect Effects 0.000 title 1
- 238000007669 thermal treatment Methods 0.000 title 1
- 238000000034 method Methods 0.000 abstract 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 abstract 2
- 150000001721 carbon Chemical class 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/36—Reactivation or regeneration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Reactivation of spherical 0.1-1.0 mm or flaky, active carbon produced from pitch (softening point 50-350 degrees C, carbon content 80-97%; H:C = 0.3-2.5; substances insoluble in nitrobenzene 60%) is carried out by the fluidised bed method, first in a drying and evaporation zone, and then in a reactivation zone. The reactivated carbon is immediately chilled with water. This method is esp. suitable for reactivation of carbon used for purification of aq. effluents, because there is no pulverisation, and, hence, reduction of the bulk volume. Effective cooling after the reactivation is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7406711A FR2261976A1 (en) | 1974-02-27 | 1974-02-27 | Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7406711A FR2261976A1 (en) | 1974-02-27 | 1974-02-27 | Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2261976A1 true FR2261976A1 (en) | 1975-09-19 |
| FR2261976B1 FR2261976B1 (en) | 1977-09-23 |
Family
ID=9135531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7406711A Granted FR2261976A1 (en) | 1974-02-27 | 1974-02-27 | Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2261976A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0076457A3 (en) * | 1981-10-01 | 1984-01-11 | Bergwerksverband Gmbh | Process and apparatus for the regeneration of moist, powdery adsorbents |
-
1974
- 1974-02-27 FR FR7406711A patent/FR2261976A1/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0076457A3 (en) * | 1981-10-01 | 1984-01-11 | Bergwerksverband Gmbh | Process and apparatus for the regeneration of moist, powdery adsorbents |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2261976B1 (en) | 1977-09-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |