EP0141097A2 - Procédé de préparation de tabac pauvre en nicotine par extraction sous hautes pressions - Google Patents

Procédé de préparation de tabac pauvre en nicotine par extraction sous hautes pressions Download PDF

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Publication number
EP0141097A2
EP0141097A2 EP84109788A EP84109788A EP0141097A2 EP 0141097 A2 EP0141097 A2 EP 0141097A2 EP 84109788 A EP84109788 A EP 84109788A EP 84109788 A EP84109788 A EP 84109788A EP 0141097 A2 EP0141097 A2 EP 0141097A2
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EP
European Patent Office
Prior art keywords
nicotine
tobacco
extraction
solvent
nitrogen
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.)
Withdrawn
Application number
EP84109788A
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German (de)
English (en)
Other versions
EP0141097A3 (fr
Inventor
Hans Jasper Dr. Gährs
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.)
Kohlensaure-Werke Rud Buse & Co GmbH
Messer Griesheim GmbH
Original Assignee
Kohlensaure-Werke Rud Buse & Co GmbH
Messer Griesheim GmbH
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 Kohlensaure-Werke Rud Buse & Co GmbH, Messer Griesheim GmbH filed Critical Kohlensaure-Werke Rud Buse & Co GmbH
Publication of EP0141097A2 publication Critical patent/EP0141097A2/fr
Publication of EP0141097A3 publication Critical patent/EP0141097A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts

Definitions

  • the invention relates to a process for the production of nicotine-free tobacco by high-pressure extraction of the nicotine with the aid of a compressed gaseous solvent, and optionally also to increase the filling capacity of the tobacco.
  • Another way of reducing the nicotine content in tobacco products is to improve the filling capacity of the tobacco used, ie to increase its specific volume (cm 3 / g).
  • the tobacco is impregnated with liquid or supercritical gases under pressure, then relaxed and thermally treated by increasing the temperature. Suitable impregnation gases for this purpose are mentioned in DE-OS 2 903 300 N 2 or Ar, in US Pat. No. 4,258,729 liquid CO 2 .
  • the invention has for its object to provide a process for the production of low-nicotine tobacco by high pressure extraction, which allows a largely isolated removal of nicotine without other ingredients, in particular aroma components, are also removed.
  • the invention is intended to allow the filling capacity of the tobacco to be increased immediately after the nicotine extraction by lowering the pressure and thermal treatment and thus further reducing the specific nicotine content.
  • the invention is essentially based on the finding that, surprisingly, mixtures of nitrogen and carbon dioxide of a certain composition have an almost selective solubility towards nicotine, although nitrogen alone has no or only an extremely small solvency, at least in the pressure range up to 500 bar.
  • the nitrogen-carbon dioxide mixtures behave like pure nitrogen and are therefore an extremely poor solvent.
  • the mixtures of nitrogen and carbon dioxide stand out extremely advantageously compared to pure carbon dioxide, the solubility of which for nicotine, even at low pressures is excellent, but which also releases numerous tobacco ingredients such as waxes and flavorings.
  • a particular advantage of the process according to the invention is that the pressure and the composition of the nitrogen-carbon dioxide mixture can be selected such that relaxation and thermal aftertreatment of the tobacco can be carried out from a pressure which is optimal for the selective extraction of the nicotine this method is to increase the filling capacity of the tobacco. After the selective nicotine extraction, there is therefore no longer any need to change the pressure. Rather, the known inflation process can be carried out directly from the existing pressure. Through this this results in an economically extremely favorable overall process.
  • the choice of the optimum pressure for the process according to the invention depends primarily on the moisture content of the tobacco and the solvent. As a rule, working temperatures above 50 ° C are required, but in special cases temperatures down to 40 ° C may already be sufficient.
  • the extracted nicotine can be separated by changing the pressure and / or temperature of the solvent.
  • the deposition of the nicotine can be effected particularly advantageously by adding another component to the solvent or by changing the composition of the solvent by adding one of the two components nitrogen or carbon dioxide.
  • the process according to the invention is carried out with solvent throughputs of at least 5 kg of solvent per kg of raw material, preferably with the assertion of 15 to 25 kg of solvent per kg of raw material.
  • a further reduction in the nicotine content can be achieved if the raw material is released from the extraction pressure immediately after the extraction and is then subjected to a thermal aftertreatment.
  • the rapid outgassing of the gas components dissolved in the raw material leads to an increase in the specific volume of at least 20%, usually from 40 to 70%.
  • Fig. 3 shows the dependence of the relative extract yields and that of the relative maximum nicotine concentrations as a function of the solvent composition at 50 ° C.
  • Curve 4 shows the relative extract yield E (N 2 / CO 2 ) / E (CO 2 ).
  • E (C0 2 ) is the total extract yield with a throughput of 10 kg of carbon dioxide per kilogram of raw material, E (N 2 / CO 2 ), the extract obtained with a throughput of 10 kg of nitrogen-carbon dioxide mixture at the optimum pressure for the respective composition.
  • Curve 5 indicates the relative nicotine saturation concentration c N (N 2 / CO 2 ) / CN (CO 2 ) as a function of solvent composition at 50 ° C.
  • the nicotine solubility is still at a good 40% of the value for pure carbon dioxide even at 75% nitrogen content, although nitrogen has practically no nicotine solubility at 450 bar and shows hardly measurable values even at 520 bar .
  • composition of the solvent mixture of nitrogen and carbon dioxide extremely influences the selectivity of the extraction process in favor of nicotine and shifts the pressure that is optimal for the extraction of nicotine to values that make a subsequent improvement in filling capacity through thermal aftertreatment very effective.
  • Fig. 4 shows an embodiment of the inventive method by way of V experienced schemas.
  • the starting material for the nicotine extraction was commercial pipe tobacco.
  • the tobacco is moistened to approx. 25% DM and the solvent that is taken from the storage tank 6 flows through in the extractor.
  • the pressure of the solvent was increased accordingly in the compressor 4 and the corresponding temperature increase was carried out in the heat exchanger 5.
  • the separation is effected via relaxation (valve 3), the extract is removed from the separator 2.
  • Table 1 the extraction result in Table 2.
  • the tobacco treated with CO 2 was significantly drier (DM 92%) and almost flavorless.
  • the tobacco treated with N 2 / CO 2 was distinguished by an almost unchanged aroma content and the moisture content was insignificantly reduced.
  • the treated tobacco was somewhat bloated.
  • the increase in the specific volume only becomes clear after a thermal aftertreatment following the extraction and relaxation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Battery Electrode And Active Subsutance (AREA)
EP84109788A 1983-09-26 1984-08-16 Procédé de préparation de tabac pauvre en nicotine par extraction sous hautes pressions Withdrawn EP0141097A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833334736 DE3334736A1 (de) 1983-09-26 1983-09-26 Verfahren zur herstellung von nikotinarmem tabak durch hochdruckextraktion
DE3334736 1983-09-26

Publications (2)

Publication Number Publication Date
EP0141097A2 true EP0141097A2 (fr) 1985-05-15
EP0141097A3 EP0141097A3 (fr) 1988-01-07

Family

ID=6210059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109788A Withdrawn EP0141097A3 (fr) 1983-09-26 1984-08-16 Procédé de préparation de tabac pauvre en nicotine par extraction sous hautes pressions

Country Status (9)

Country Link
US (1) US4561452A (fr)
EP (1) EP0141097A3 (fr)
JP (1) JPS6094079A (fr)
CA (1) CA1216487A (fr)
DE (1) DE3334736A1 (fr)
DK (1) DK158128C (fr)
ES (1) ES8504441A1 (fr)
NO (1) NO843629L (fr)
ZA (1) ZA847515B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0323699A2 (fr) * 1987-11-19 1989-07-12 Philip Morris Products Inc. Procédé et appareil pour l'extraction semi-continue de la nicotine du tabac
US5018540A (en) * 1986-12-29 1991-05-28 Philip Morris Incorporated Process for removal of basic materials

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331906A1 (de) * 1983-09-03 1985-03-21 Kohlensäure-Werke Rud. Buse GmbH & Co, 5462 Bad Hönningen Verfahren zur trennung von organische bestandteile enthaltenden stoffgemischen
US4898188A (en) * 1986-12-22 1990-02-06 R. J. Reynolds Tobacco Company Tobacco Processing
US4727889A (en) * 1986-12-22 1988-03-01 R. J. Reynolds Tobacco Company Tobacco processing
DE3706594A1 (de) * 1987-02-28 1988-09-08 Messer Griesheim Gmbh Verfahren zur extraktion organischer bestandteile aus feststoffen
DE3716689A1 (de) * 1987-05-19 1988-12-01 Messer Griesheim Gmbh Vorrichtung zur semikontinuierlichen durchfuehrung von extraktionsprozessen
US4962773A (en) * 1987-08-13 1990-10-16 R. J. Reynolds Tobacco Company Process for the manufacture tobacco rods containing expanded tobacco material
US5435325A (en) * 1988-04-21 1995-07-25 R. J. Reynolds Tobacco Company Process for providing tobacco extracts using a solvent in a supercritical state
US5031644A (en) * 1989-12-29 1991-07-16 R. J. Reynolds Tobacco Company Tobacco expansion process and product
DE4002784C1 (fr) * 1990-01-31 1991-04-18 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De
US5095923A (en) * 1991-04-11 1992-03-17 R. J. Reynolds Tobacco Company Tobacco expansion process using 1,1,1,2-tetrafluoroethane
US5251649A (en) * 1991-06-18 1993-10-12 Philip Morris Incorporated Process for impregnation and expansion of tobacco
SK139993A3 (en) * 1992-12-17 1994-09-07 Philip Morris Prod Method of impregnation and expanding of tobacco and device for its performing
DE19654945C2 (de) * 1996-07-29 1998-05-20 Mueller Extract Co Gmbh Im wesentlichen nikotinfreies Tabakaromaöl sowie Verfahren zu dessen Herstellung
CA2255413A1 (fr) 1998-12-11 2000-06-11 Fracmaster Ltd. Expansion d'azote dans du co2 liquide et utilisation de cette mousse comme fluide de fracturation
DE10006425C1 (de) * 2000-02-14 2001-08-16 Reemtsma H F & Ph Verfahren zur Verbesserung der Füllfähigkeit von Tabak
US7798151B2 (en) * 2002-07-18 2010-09-21 Us Smokeless Tobacco Co. Reduction of constituents in tobacco
NZ564025A (en) * 2005-05-11 2012-03-30 Vector Tobacco Inc Reduced risk tobacco products and methods of making same
US20100206317A1 (en) * 2007-09-28 2010-08-19 Vector Tobacco, Inc. Reduced risk tobacco products and use thereof
RU2450582C1 (ru) * 2010-12-27 2012-05-20 Олег Иванович Квасенков Способ производства некурительного изделия из махорки
RU2443135C1 (ru) * 2010-12-27 2012-02-27 Олег Иванович Квасенков Способ производства некурительного изделия из махорки
RU2450585C1 (ru) * 2011-01-20 2012-05-20 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2450586C1 (ru) * 2011-01-20 2012-05-20 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2443243C1 (ru) * 2011-01-21 2012-02-27 Олег Иванович Квасенков Способ выработки некурительного изделия из махорки
RU2450639C1 (ru) * 2011-01-27 2012-05-20 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2444245C1 (ru) * 2011-01-27 2012-03-10 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2450640C1 (ru) * 2011-01-27 2012-05-20 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2450668C1 (ru) * 2011-02-01 2012-05-20 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2450654C1 (ru) * 2011-02-01 2012-05-20 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2450588C1 (ru) * 2011-02-10 2012-05-20 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2450690C1 (ru) * 2011-02-10 2012-05-20 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2450681C1 (ru) * 2011-02-10 2012-05-20 Олег Иванович Квасенков Способ выработки некурительного изделия из махорки
RU2450587C1 (ru) * 2011-02-10 2012-05-20 Олег Иванович Квасенков Способ выработки некурительного изделия из махорки
RU2452317C1 (ru) * 2011-02-18 2012-06-10 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
RU2452294C1 (ru) * 2011-02-21 2012-06-10 Олег Иванович Квасенков Способ получения некурительного изделия из махорки
US20180084823A1 (en) * 2016-09-27 2018-03-29 BOND STREET MANUFACTURING LLC (a Florida LLC) Vaporizable Tobacco Wax Compositions and Container thereof
GB201707758D0 (en) 2017-05-15 2017-06-28 British American Tobacco Investments Ltd Ground tobacco composition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153063A (en) * 1970-09-02 1979-05-08 Studiengesellschaft Kohle Mbh Process for the extraction of nicotine from tobacco
GB2031707A (en) * 1978-10-20 1980-04-30 Philip Morris Inc Treatment of tobacco
EP0010665A1 (fr) * 1978-10-13 1980-05-14 HAG Aktiengesellschaft Procédé pour le traitement par extraction de matériaux végétaux et animaux
FR2447155A1 (fr) * 1979-01-29 1980-08-22 Reemtsma H F & Ph Procede pour ameliorer la capacite de remplissage de tabacs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH458905A (fr) * 1966-02-15 1968-06-30 Nestle Sa Procédé de préparation d'extraits de matières végétales

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153063A (en) * 1970-09-02 1979-05-08 Studiengesellschaft Kohle Mbh Process for the extraction of nicotine from tobacco
EP0010665A1 (fr) * 1978-10-13 1980-05-14 HAG Aktiengesellschaft Procédé pour le traitement par extraction de matériaux végétaux et animaux
GB2031707A (en) * 1978-10-20 1980-04-30 Philip Morris Inc Treatment of tobacco
FR2447155A1 (fr) * 1979-01-29 1980-08-22 Reemtsma H F & Ph Procede pour ameliorer la capacite de remplissage de tabacs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5018540A (en) * 1986-12-29 1991-05-28 Philip Morris Incorporated Process for removal of basic materials
EP0323699A2 (fr) * 1987-11-19 1989-07-12 Philip Morris Products Inc. Procédé et appareil pour l'extraction semi-continue de la nicotine du tabac
EP0323699A3 (fr) * 1987-11-19 1990-04-25 Philip Morris Products Inc. Procédé et appareil pour l'extraction semi-continue de la nicotine du tabac
US5497792A (en) * 1987-11-19 1996-03-12 Philip Morris Incorporated Process and apparatus for the semicontinuous extraction of nicotine from tobacco

Also Published As

Publication number Publication date
DE3334736A1 (de) 1985-04-04
EP0141097A3 (fr) 1988-01-07
ES535612A0 (es) 1985-05-16
DK456284D0 (da) 1984-09-25
DK158128B (da) 1990-04-02
NO843629L (no) 1985-03-27
CA1216487A (fr) 1987-01-13
ZA847515B (en) 1985-12-24
DK456284A (da) 1985-03-27
DE3334736C2 (fr) 1991-09-12
ES8504441A1 (es) 1985-05-16
JPS6094079A (ja) 1985-05-27
US4561452A (en) 1985-12-31
DK158128C (da) 1990-09-03

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Inventor name: GAEHRS, HANS JASPER, DR.