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 products

Info

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
Application number
FR7908488A
Other languages
French (fr)
Other versions
FR2433963B1 (en
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.)
CIBOIT JACQUES
Original Assignee
CIBOIT JACQUES
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 CIBOIT JACQUES filed Critical CIBOIT JACQUES
Publication of FR2433963A1 publication Critical patent/FR2433963A1/en
Application granted granted Critical
Publication of FR2433963B1 publication Critical patent/FR2433963B1/en
Expired legal-status Critical Current

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.
FR7908488A 1978-05-05 1979-04-04 METHOD FOR IMPROVING THE TRANSFER COEFFICIENT IN THE TUBES OF A FALLING FLOAT EVAPORATOR Expired FR2433963B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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