WO2011116969A1 - Procédé de stimulation de la croissance d'algues ou de cyanobactéries dans une solution aqueuse - Google Patents

Procédé de stimulation de la croissance d'algues ou de cyanobactéries dans une solution aqueuse Download PDF

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Publication number
WO2011116969A1
WO2011116969A1 PCT/EP2011/001482 EP2011001482W WO2011116969A1 WO 2011116969 A1 WO2011116969 A1 WO 2011116969A1 EP 2011001482 W EP2011001482 W EP 2011001482W WO 2011116969 A1 WO2011116969 A1 WO 2011116969A1
Authority
WO
WIPO (PCT)
Prior art keywords
algae
carbon dioxide
aqueous solution
side stream
container
Prior art date
Application number
PCT/EP2011/001482
Other languages
German (de)
English (en)
Inventor
Hans-Jörg ZANDER
Original Assignee
Linde Aktiengesellschaft
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 Linde Aktiengesellschaft filed Critical Linde Aktiengesellschaft
Publication of WO2011116969A1 publication Critical patent/WO2011116969A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/12—Unicellular algae; Culture media therefor
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G33/00—Cultivation of seaweed or algae
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2

Definitions

  • the invention relates to a method for promoting the growth of algae or cvobacteria in a container filled with an aqueous solution.
  • Algae especially microalgae, are single-celled organisms naturally occurring in water. With the help of sunlight, they build their biomass through a photosynthetic process of carbon dioxide (C02) and nutrients. Although cyanobacteria are not attributable to the plants, they also have a photosynthetic mechanism with comparable effects. The biomass produced can be harvested as a regenerative energy source.
  • C02 carbon dioxide
  • cyanobacteria are not attributable to the plants, they also have a photosynthetic mechanism with comparable effects.
  • the biomass produced can be harvested as a regenerative energy source.
  • the so-called algae oil of interest which can be obtained by pressing out of the algae.
  • Various research projects are already working on genetically modifying algae or cyanobacteria in such a way that they directly produce energy carriers, e.g. in the form of ethanol or hydrogen.
  • Energy production is the optimal supply of light, carbon dioxide and nutrients decisive for biomass composition.
  • the adequate intake of carbon dioxide is important.
  • Object of the present invention is therefore to provide a method of the generic type, with which the formation of biomass can be accelerated.
  • the stated object is achieved in that the container is taken from a side stream of the aqueous solution, saturated with carbon dioxide and returned near the bottom in the container.
  • the invention is based on the consideration that algae at higher
  • Partial pressures grow faster. From mass transfer calculations, it follows that the biomass structure is limited by the slow introduction of carbon dioxide from the air into the aqueous phase. It is therefore discussed that the usually trained as open-topped water-filled pools to set up containers for growing the algae near fossil power plants to use the high CO 2 partial pressure of the flue gases from the power plants for an acceleration of C02-Stofftransports and simultaneously the Reduce C02 emissions from power plants. For an entry of the flue gas into the pool but at least the hydrostatic pressure of the water located in the basin must be overcome. This means a pressure drop in the flue gas path, which has a very adverse effect on energy consumption. In addition, the very large volume flow of the flue gas requires considerable expenditure on equipment.
  • Cyanobacteria sufficient amounts of carbon dioxide can be provided without having to accept a significant pressure loss or too high equipment costs in purchasing. This is achieved by the aqueous solution in the container not directly with the carbon dioxide-containing gas
  • the side stream is saturated in a spray apparatus with carbon dioxide.
  • This apparatus can be operated on the gas side very low pressure loss.
  • Energy is consumed only by a provided for circulating the side stream circulation pump.
  • Another advantageous embodiment provides that the side stream is saturated in a packed column with carbon dioxide.
  • the measure according to the invention of returning the carbon dioxide-saturated side stream close to the bottom back into the container is based on the following consideration:
  • the water hardness of the aqueous solution can be increased by adding lime and / or sodium hydroxide.
  • nutrients, in particular ammonium and / or phosphate, can contribute to the buffering of the pH.
  • a further development of the inventive concept provides that the carbon dioxide-saturated side stream is mixed before being returned to the container with non-saturated aqueous solution. This increases the pH of the recycled sidestream. This can be useful at relatively high CO 2 pressures at which the saturated side stream is slightly acidic. Constantly changing pH values in the container are not conducive to algae or cyanobacteria.
  • the invention can be used in all types of containers for the rearing of algae or
  • the container is designed as an open-topped basin, which is filled with water, in which the algae or cyanobacteria float.
  • the container may also be designed as a closed reactor.
  • the algae or cyanobacteria can also be found in
  • the provided for the supply of algae or cyanobacteria carbon dioxide is suitably derived from the flue gas of a fossil fuel power plant. This results in two advantages simultaneously. On the one hand, the growth rate of the algae or cyanobacteria is increased, so that in an economical way energy carriers, e.g. in the form of algae oil, ethanol or
  • Hydrogen can be generated.
  • the C02 emissions of the power plant are reduced.
  • the pressure loss of the flue gas path is not significantly increased.
  • Growth rate of algae or cyanobacteria can be increased by withdrawing a side stream from the container and e.g. via a trickle film on the carbon dioxide-containing air saturates and the saturated sidestream finally in

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biochemistry (AREA)
  • Virology (AREA)
  • Botany (AREA)
  • Microbiology (AREA)
  • Cell Biology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Biomedical Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental Sciences (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

L'invention concerne un procédé de stimulation de la croissance d'algues dans un récipient rempli d'une solution aqueuse. Ce procédé prévoit de prélever du récipient une fraction latérale de la solution aqueuse, de la saturer en dioxyde de carbone et de la renvoyer dans le récipient à proximité du fond.
PCT/EP2011/001482 2010-03-26 2011-03-24 Procédé de stimulation de la croissance d'algues ou de cyanobactéries dans une solution aqueuse WO2011116969A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010012921A DE102010012921A1 (de) 2010-03-26 2010-03-26 Verfahren zur Förderung des Wachstums von Algen oder Cyanobakterien in einer wässrigen Lösung
DE102010012921.6 2010-03-26

Publications (1)

Publication Number Publication Date
WO2011116969A1 true WO2011116969A1 (fr) 2011-09-29

Family

ID=44063478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/001482 WO2011116969A1 (fr) 2010-03-26 2011-03-24 Procédé de stimulation de la croissance d'algues ou de cyanobactéries dans une solution aqueuse

Country Status (2)

Country Link
DE (1) DE102010012921A1 (fr)
WO (1) WO2011116969A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020069944A1 (fr) 2018-10-05 2020-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Procédé pour stimuler la croissance de biomasse contenue dans un liquide à l'intérieur d'un bioréacteur

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
CARVALHO ANA P ET AL: "Microalgal reactors: A review of enclosed system designs and performances", BIOTECHNOLOGY PROGRESS, vol. 22, no. 6, December 2006 (2006-12-01), pages 1490 - 1506, XP002640244, ISSN: 8756-7938 *
CARVALHO ANA P ET AL: "Transfer of carbon dioxide within cultures of microalgae: Plain bubbling versus hollow-fiber modules", BIOTECHNOLOGY PROGRESS, vol. 17, no. 2, March 2001 (2001-03-01), pages 265 - 272, XP002640245, ISSN: 8756-7938 *
FERREIRA B S ET AL: "MICROPOROUS HOLLOW FIBRES FOR CARBON DIOXIDE ABSORPTION: MASS TRANSFER MODEL FITTING AND THE SUPPLYING OF CARBON DIOXIDE TO MICROALGAL CULTURES", JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, BLACKWELL SCIENTIFIC PUBLICATIONS. OXFORD, GB, vol. 71, no. 1, 1 January 1998 (1998-01-01), pages 61 - 70, XP000765664, ISSN: 0268-2575 *
HSUEH ET AL: "A batch study on the bio-fixation of carbon dioxide in the absorbed solution from a chemical wet scrubber by hot spring and marine algae", CHEMOSPHERE, PERGAMON PRESS, OXFORD, GB, vol. 66, no. 5, 25 November 2006 (2006-11-25), pages 878 - 886, XP005730216, ISSN: 0045-6535, DOI: DOI:10.1016/J.CHEMOSPHERE.2006.06.022 *
POSTEN CLEMENS: "Design principles of photo-bioreactors for cultivation of microalgae", ENGINEERING IN LIFE SCIENCES, vol. 9, no. 3, June 2009 (2009-06-01), pages 165 - 177, XP002640242, ISSN: 1618-0240 *
TERRY K L ET AL: "SYSTEM DESIGN FOR THE AUTOTROPHIC PRODUCTION OF MICROALGAE", ENZYME AND MICROBIAL TECHNOLOGY, vol. 7, no. 10, 1985, pages 474 - 487, XP002640243, ISSN: 0141-0229 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020069944A1 (fr) 2018-10-05 2020-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Procédé pour stimuler la croissance de biomasse contenue dans un liquide à l'intérieur d'un bioréacteur

Also Published As

Publication number Publication date
DE102010012921A1 (de) 2011-09-29

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