EP1063302B1 - Verfahren zur Extraktion von Zuckersaft - Google Patents

Verfahren zur Extraktion von Zuckersaft Download PDF

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Publication number
EP1063302B1
EP1063302B1 EP00401790A EP00401790A EP1063302B1 EP 1063302 B1 EP1063302 B1 EP 1063302B1 EP 00401790 A EP00401790 A EP 00401790A EP 00401790 A EP00401790 A EP 00401790A EP 1063302 B1 EP1063302 B1 EP 1063302B1
Authority
EP
European Patent Office
Prior art keywords
pressing
juice
sweet juice
extraction
pressing means
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.)
Expired - Lifetime
Application number
EP00401790A
Other languages
English (en)
French (fr)
Other versions
EP1063302A1 (de
Inventor
Robert Guyot
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.)
Fonderies et Ateliers L Choquenet SA
Maguin SAS
Original Assignee
Fonderies et Ateliers L Choquenet SA
Maguin SAS
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 Fonderies et Ateliers L Choquenet SA, Maguin SAS filed Critical Fonderies et Ateliers L Choquenet SA
Publication of EP1063302A1 publication Critical patent/EP1063302A1/de
Application granted granted Critical
Publication of EP1063302B1 publication Critical patent/EP1063302B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00—Production of sugar juices
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00—Production of sugar juices
    • C13B10/08—Extraction of sugar from sugar beet with water
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00—Purification of sugar juices
    • C13B20/16—Purification of sugar juices by physical means, e.g. osmosis or filtration

Definitions

  • the present invention relates generally to a process for extracting a sweet juice from beet or chicory, and more particularly to an extraction process in which only two successive pressing extraction stages are used.
  • the conventional diffusion processes of the prior art employ extractors in which sugar beet chips are passed countercurrently and a high temperature extraction solvent such as hot water, the sugar being extracted by diffusion. without pressing the chips.
  • the contact time must be relatively long, which requires extractors of great length and to maintain the extraction solvent such as water at an elevated temperature over the entire extraction zone; for example at a temperature of the order of 70 ° C.
  • German DE 736 734 discloses a method of extracting a sugar juice from beets wherein the beets are baked at about 90 ° C prior to the first pass stage to soften the cells.
  • the present invention aims to provide a process for extracting a sweet juice from sugar beet or chicory requiring a less expensive infrastructure, a lower energy cost and resulting in a lack of CO 2 discharge in the atmosphere at the level of purification.
  • the process of the invention makes it possible to obtain a sugar juice of better quality than the diffusion processes of the prior art since, requiring lower temperatures, the reduced oxidation of the raw material avoids the need for solution of undesirable undesirable products and limits the microbial developments with consequent very low levels of organic compounds in the sweetened juices obtained.
  • a process for extracting a final sweet juice from beetroot or chicory comprises only two successive stages of extraction by pressing.
  • a first step of extraction by pressing comprises the passage in a first pressing means of a fresh grating optionally supplemented with water or at least a fraction of the second sweet juice producing a first sweet juice and a first pressed raspberry.
  • a second step of extraction by pressing comprises the passage in a second pressing means consisting of at least one membrane filter presses and cyclic operation of a second feed mixture comprising the first pressed rasp from the first means pressing and a predetermined amount of water.
  • a sieving step of the first sweet juice leads to the final sweet juice and a solid refusal.
  • the second pressing means is constituted by several filter presses with membrane plates and cyclic operation, for example two, arranged in parallel.
  • the process for extracting a sweet juice from sugar beet or chicory comprises two pressing extraction stages PR1, FP, arranged in series, the first press extraction stage PR1 being fed by a feed mixture A0 containing fresh R0 rapier and outputting a first sweet juice J1 and a first pressed rasp R1, and the second extraction stage FP receiving a feed mixture A1 containing the first raspberry pressed R1 and outputting a second sweet juice J2 and a second pressed rasp R2.
  • the first extraction stage comprises a PR1 press, for example a bi-screw type press fed by a G1 flared feed chute, of sufficient size to allow a good feeding of the press and such a perfect balance. as much as possible between the sugar concentration of the cellulosic phase and the liquid phase with a feed mixture A0 containing fresh rape R0 of sugar beet or chicory and at least a part of the second sweet juice J2 from the second stage d extraction by pressing FP.
  • a raspberry that is to say a beet raw material or chicory reduced to size particles average of 1 to 10 mm, preferably 2 to 4 mm, unlike the chips usually used promotes extraction of sugar cells by leaching / pressing operation.
  • the first rasp pressed and partially depleted R1 from the first press PR1, optionally mixed with a solid rejection recovered from the first sweet juice J1 and a portion J "2 of the second sweet juice J2, as will be seen more specifically below is generally added with a predetermined amount of water to form the feed mixture A1 of the second press extraction stage FP.
  • this second press extraction stage which is constituted by at least one membrane filter press and cyclic operation FP, the feed mixture A1 is cyclically filtered and then pressed to obtain a second sweet juice J2 and a second grating.
  • pressed R2 which is evacuated for storage and processing usually in livestock feed.
  • the filter press FP operates in successive cycles of filtration and pressing.
  • a fraction Je2 of the second sweet juice J2 is separated by filtration from the first pressed rasp R1 which accumulates in the form of cakes on the membranous plates of the filter press.
  • This first fraction Je2 of the second sweet juice J2 is recovered in a tank B'2 and pumped by means of a pump P'2 to be mixed with the fresh rasp R0 to form the feed mixture A0 of the first stage of PR1 extraction.
  • the grating cakes on the membrane trays of the filter press FP are pressed to extract an additional fraction J "2 of the second sweet juice, and the second pressed rasp R2 is removed from the filter -press and conveyed, for example by a conveyor belt, to a place of storage.
  • This second fraction J "2 of the second sweet juice J2 is recovered in a tank B" 2 and pumped by a pump P "2 for preference mixed with the first pressed rasp R1 in order to form the feed mixture A1 of the second extraction stage by pressing constituted by the filter press FP.
  • the first juice J1 sweetened from the first pressing extraction stage PR1 is collected in a tray B1 and then pumped by means of a pump P1 on a sieve T to separate from this first sweet juice J1 a final sweet juice JS and a solid RF refusal .
  • the solid rejection is also mixed with the first pressed rasp R1 from the first press extraction stage PR1 to form the feed mixture A1 of the second press extraction stage FP.
  • the sweet juice JS from the first press extraction stage PR1 is recovered, purified and treated in a conventional manner.
  • the final juice treated is then decanted and the clear juice obtained is, as is conventional, sulphited then filtered.
  • the first pressed rasp R1, the solid RF rejection of the sieve T and the fraction J "2 of the second sweet juice J2 are mixed in a mixer M1, pumped and added with a predetermined amount of water to form the feed mixture A1 of the second extraction stage by pressing constituted by the filter press FP.
  • a complementary quantity of water is added to ensure the de-sugaring of the grating cakes in the filter press (from 100 to 500 kg of water / ton of beet).
  • This water is generally introduced at a temperature ranging from 30 to 90 ° C., preferably at a temperature of the order of 60 ° C.
  • This water can be introduced only at the level of the feed of the second extraction stage by pressing constituted by the press filter FP (desugar function) or can be introduced in addition to the level of the feed of the filter press FP, in several other points of the installation, for example in the tray B "2 of recovery of the fraction J" 2 of the second sweet juice J2 or in the tray B'2 of recovery of the fraction J'2 of the second sweet juice J2, or in the tray Ml.
  • the fractions Je 2 and J "2 of the second sweet juice J 2 are used in a differentiated, one could mix these fractions and use them simply to be mixed with R0 fresh grated.
  • the described differentiated use of the fractions of the second sweet juice J2 makes it possible to ensure better efficiency in the extraction process.
  • a heating step of the second sweet juice J2 may be provided for example by means of a heater to adjust the temperature of the grating in the first extraction stage PR1.
  • Mass flow rate of fresh R0 raspberry 1,400 kg / hour Mass flow rate of the first pressed rasp R1: 500 kg / hour Mass flow rate of second pressed rasp R2: 250 kg / hour Mass flow rate of water: 500 kg / hour Mixing temperature: 40 to 50 ° C

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Preparation Of Fruits And Vegetables (AREA)
  • Saccharide Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Claims (7)

  1. Verfahren zur Extraktion von finalem Zuckersaft aus Rüben oder Zichorien dadurch gekennzeichnet, dass es:
    lediglich zwei aufeinander folgende Pressextraktionsstufen aufweist:
    - einen erste Pressextraktionsschritt, zu dem es gehört, dass Raspelgut (RO) gegebenenfalls unter Zugabe von Wasser oder wenigstens eine Fraktion von zweitem Zuckersaft (J2) eine erste Presseinrichtung (PR1) passiert, um einen ersten Zuckersaft (J1) und ein erstes Raspelpressgut (R1) zu erzeugen,
    - einen zweite Pressextraktionsschritt, zu dem es gehört, dass eine zweiten Zuführmischung (A1), die das erste gepresste und von der ersten Presseinrichtung (PR1) kommende Raspelgut und eine vorbestimmte Wassermenge enthält, ein zweite Presseinrichtung (FP) passiert, die wenigstens eine zyklisch arbeitende Filterpresse mit Plattenmembranen enthält und
    einen Filterschritt für den ersten Zuckersaft (J1), der zu dem finalen Zuckersaft (JS) und einem festen Abfall (RF) führt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die ersten Presseinrichtung eine Doppelschraubenpresse umfasst.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zweite Presseinrichtung (FP) von mehreren Filterpressen mit plattenförmigen Membranen gebildet ist, die zyklisch arbeiten und parallel angetrieben sind.
  4. Verfahren nach einem der vorhergehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der feste Abfall (RF) der zweite Zuführmischung (A1) zugegeben wird.
  5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die zweite Presseinrichtung (FP) mit aufeinander folgenden Zyklen der Filterung und des Pressens arbeiten, um jeweils den zweiten gefilterten Saft (J'2) und einen zweiten gepressten Saft (J"2) zu erzeugen, und dass die Fraktion des zweiten Zuckersaftes (J2) die der ersten Zuführmischung (AO) zugegeben ist, von dem zweiten gefilterten Zuckersaft gebildet ist (J'2).
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass der zweite gepresste Zuckersaft (J''2) der zweiten Zuführmischung (A1) zugegeben wird.
  7. Verfahren nach einem der vorhergehenden Ansprüche, das eine Anlage verwendet, die eine Pressenanordnung besitzt, die lediglich eine erste Presseinrichtung (PR1) in Serie mit einer zweiten Presseinrichtung (FP) enthält, die eine oder mehrere Filterpressen mit Plattenmembranen, die zyklisch parallel arbeiten, sowie einen Filter (T) aufweist.
EP00401790A 1999-06-25 2000-06-22 Verfahren zur Extraktion von Zuckersaft Expired - Lifetime EP1063302B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9908178 1999-06-25
FR9908178A FR2795428B1 (fr) 1999-06-25 1999-06-25 Procede et installation d'extraction d'un jus sucre

Publications (2)

Publication Number Publication Date
EP1063302A1 EP1063302A1 (de) 2000-12-27
EP1063302B1 true EP1063302B1 (de) 2008-04-16

Family

ID=9547328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00401790A Expired - Lifetime EP1063302B1 (de) 1999-06-25 2000-06-22 Verfahren zur Extraktion von Zuckersaft

Country Status (5)

Country Link
EP (1) EP1063302B1 (de)
AT (1) ATE392487T1 (de)
DE (1) DE60038592T2 (de)
ES (1) ES2304933T3 (de)
FR (1) FR2795428B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928817B1 (fr) 2008-03-19 2010-12-17 Ecopsi Procede et unite de production de dreches de betteraves et de jus sucre a partir de betteraves
CN102766702B (zh) * 2012-07-24 2014-04-02 广西大学 一种高速沉降装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022342A1 (de) * 1999-01-21 2000-07-26 Maguin S.A. Verfahren und Einheit zur Extraktion von Zuckersaft aus Rüben oder Zichorie

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE736734C (de) * 1939-07-02 1943-06-25 Fraembs & Freudenberg Verfahren zum Entsaften von Zuckerrueben
IT1132675B (it) * 1980-09-05 1986-07-02 Ital Ind Degli Zuccheri Processo di estrazione di zucchero da barbabietole,impinato per la sua realizzazione,sugo zuccherino greggio e zucchero da barbabietole in tal modo prodotti
FR2502909B1 (fr) * 1981-04-03 1985-05-31 Alsthom Atlantique Procede pour l'extraction du jus de tubercules, en particulier de topinambours et installation mettant en oeuvre le procede
AT401776B (de) * 1989-03-10 1996-11-25 Agrana Zucker Gmbh Mehrstufiges verfahren zur zuckergewinnung aus zuckerrüben

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022342A1 (de) * 1999-01-21 2000-07-26 Maguin S.A. Verfahren und Einheit zur Extraktion von Zuckersaft aus Rüben oder Zichorie

Also Published As

Publication number Publication date
DE60038592D1 (de) 2008-05-29
ATE392487T1 (de) 2008-05-15
DE60038592T2 (de) 2009-05-07
FR2795428A1 (fr) 2000-12-29
EP1063302A1 (de) 2000-12-27
ES2304933T3 (es) 2008-11-01
FR2795428B1 (fr) 2001-08-31

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