FR2433963A1 - Improving transfer coefficient in falling flow evaporators - by recycling part of vapour to head of evapn. tubes, partic. useful in concentrating heat-sensitive products - Google Patents
Improving transfer coefficient in falling flow evaporators - by recycling part of vapour to head of evapn. tubes, partic. useful in concentrating heat-sensitive productsInfo
- Publication number
- FR2433963A1 FR2433963A1 FR7908488A FR7908488A FR2433963A1 FR 2433963 A1 FR2433963 A1 FR 2433963A1 FR 7908488 A FR7908488 A FR 7908488A FR 7908488 A FR7908488 A FR 7908488A FR 2433963 A1 FR2433963 A1 FR 2433963A1
- Authority
- FR
- France
- Prior art keywords
- vapour
- evapn
- tubes
- head
- product
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C1/00—Concentration, evaporation or drying
- A23C1/12—Concentration by evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/10—Evaporators with vertical tubes with long tubes, e.g. Kestner evaporators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/28—Evaporating with vapour compression
- B01D1/2803—Special features relating to the vapour to be compressed
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The process comprises feeding a part of the vapour coming from the evapn. of the product being concnd. to the head of the evapn. tubes of the evaporator. The recycling of the vapour allows the rate of concn. to be increased without risk of deterioration of the product being conc. The process is economical because the vapour utilised comes from the evapn. itself and it is not necessary to utilise external vapour. The evaporator is constituted by an evapn. body comprising a feed chamber fitted with an inlet for product to be conc. and surmounting a heating body fitted with an inlet for heating vapour and an outlet for condensed vapour and in which are evapn. tubes. An extn. chamber at the bottom of the body is connected by a vapour pipe to a separator. Vapour leaves by a pipe while the liq. flows through a pipe to a discharge pipe for conc. product.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU79605A LU79605A1 (en) | 1978-05-05 | 1978-05-05 | PROCESS FOR IMPROVING THE TRANSFER COEFFICIENT IN THE TUBES OF A FALLING FLOAT EVAPORATOR |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2433963A1 true FR2433963A1 (en) | 1980-03-21 |
FR2433963B1 FR2433963B1 (en) | 1988-05-20 |
Family
ID=19728911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7908488A Expired FR2433963B1 (en) | 1978-05-05 | 1979-04-04 | METHOD FOR IMPROVING THE TRANSFER COEFFICIENT IN THE TUBES OF A FALLING FLOAT EVAPORATOR |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2433963B1 (en) |
LU (1) | LU79605A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2506567A1 (en) * | 1981-05-29 | 1982-12-03 | Laguilharre Sa | PROCESS FOR THE CONCENTRATION OF A COLD LIQUID PRODUCT, SUCH AS A COLD DAIRY PRODUCT, WITH SIMULTANEOUS PREHEATING OF A FLUID OTHER THAN SAID LIQUID PRODUCT |
US4584062A (en) * | 1981-06-04 | 1986-04-22 | Ateliers Sussmeyer Sprl | Apparatus for the fractionation of a mixture comprising at least one liquid volatile fraction |
FR2583651A1 (en) * | 1985-06-21 | 1986-12-26 | Laguilharre Sa | Single-body evaporator for the concentration of at least one liquid product, comprising at least two evaporation sections and evaporation plant comprising such an evaporator |
US4783242A (en) * | 1986-05-22 | 1988-11-08 | The Dow Chemical Company | Distillation system and process |
FR2665245A1 (en) * | 1990-07-27 | 1992-01-31 | Entropie Sa | Unit for concentrating a heat-sensitive solution, in particular grape must |
US5366716A (en) * | 1991-12-02 | 1994-11-22 | A. Ahlstrom Corporation | Method for recovering sulphur dioxide from the chemical circulation of a sulphate pulp mill |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1043070A (en) * | 1950-06-06 | 1953-11-05 | Apv Co Ltd | Improvements in the separation between easily volatile and relatively non-volatile materials |
FR2015736A1 (en) * | 1968-08-15 | 1970-04-30 | Wiegand Apparatebau Gmbh | |
DE2352758A1 (en) * | 1973-10-20 | 1975-04-24 | Hermann Dipl Chem Dr Stage | Falling film distillation of fatty acids - with bypass recycling of vapour to give increased output |
-
1978
- 1978-05-05 LU LU79605A patent/LU79605A1/en unknown
-
1979
- 1979-04-04 FR FR7908488A patent/FR2433963B1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1043070A (en) * | 1950-06-06 | 1953-11-05 | Apv Co Ltd | Improvements in the separation between easily volatile and relatively non-volatile materials |
FR2015736A1 (en) * | 1968-08-15 | 1970-04-30 | Wiegand Apparatebau Gmbh | |
DE2352758A1 (en) * | 1973-10-20 | 1975-04-24 | Hermann Dipl Chem Dr Stage | Falling film distillation of fatty acids - with bypass recycling of vapour to give increased output |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2506567A1 (en) * | 1981-05-29 | 1982-12-03 | Laguilharre Sa | PROCESS FOR THE CONCENTRATION OF A COLD LIQUID PRODUCT, SUCH AS A COLD DAIRY PRODUCT, WITH SIMULTANEOUS PREHEATING OF A FLUID OTHER THAN SAID LIQUID PRODUCT |
EP0067745A1 (en) * | 1981-05-29 | 1982-12-22 | Laguilharre S.A. | Process for the concentration of a cold liquid product, such as a cold milk product, with simultaneous preheating of a fluid other than said liquid product |
US4584062A (en) * | 1981-06-04 | 1986-04-22 | Ateliers Sussmeyer Sprl | Apparatus for the fractionation of a mixture comprising at least one liquid volatile fraction |
FR2583651A1 (en) * | 1985-06-21 | 1986-12-26 | Laguilharre Sa | Single-body evaporator for the concentration of at least one liquid product, comprising at least two evaporation sections and evaporation plant comprising such an evaporator |
US4783242A (en) * | 1986-05-22 | 1988-11-08 | The Dow Chemical Company | Distillation system and process |
FR2665245A1 (en) * | 1990-07-27 | 1992-01-31 | Entropie Sa | Unit for concentrating a heat-sensitive solution, in particular grape must |
US5366716A (en) * | 1991-12-02 | 1994-11-22 | A. Ahlstrom Corporation | Method for recovering sulphur dioxide from the chemical circulation of a sulphate pulp mill |
Also Published As
Publication number | Publication date |
---|---|
FR2433963B1 (en) | 1988-05-20 |
LU79605A1 (en) | 1979-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |