WO2022157804A1 - Procédé de préparation d'une composition d'extinction d'incendie à partir de mauvaises herbes et compositions fabriquées à partir de celle-ci - Google Patents

Procédé de préparation d'une composition d'extinction d'incendie à partir de mauvaises herbes et compositions fabriquées à partir de celle-ci Download PDF

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Publication number
WO2022157804A1
WO2022157804A1 PCT/IN2022/050042 IN2022050042W WO2022157804A1 WO 2022157804 A1 WO2022157804 A1 WO 2022157804A1 IN 2022050042 W IN2022050042 W IN 2022050042W WO 2022157804 A1 WO2022157804 A1 WO 2022157804A1
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WO
WIPO (PCT)
Prior art keywords
fire
water
weed
extinguisher
extinguisher composition
Prior art date
Application number
PCT/IN2022/050042
Other languages
English (en)
Inventor
Tasneem Abbasi
S. Raja
S.A. Abbasi
Original Assignee
Tasneem Abbasi
Raja s
Abbasi S A
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 Tasneem Abbasi, Raja s, Abbasi S A filed Critical Tasneem Abbasi
Publication of WO2022157804A1 publication Critical patent/WO2022157804A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0028—Liquid extinguishing substances
    • A62D1/0035—Aqueous solutions
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • A62D1/0071—Foams

Definitions

  • This invention relates to a process of preparation of an inexpensive and eco- friendly fire-extinguisher composition. More particularly, the present invention relates to a process for preparation of a fire-extinguisher composition from freely available weeds, and fire-extinguisher compositions made therefrom.
  • both of these non-toxic extinguishers based on palm oil and potato starch are food items and their large-scale use as fire extinguishers will not only be expensive but will compete with their more essential and pressing manner of utilization.
  • the processes needed to make fire extinguishers from these substances, as described by their authors, are tedious, expensive and unfriendly to the environment.
  • the authors who have reported the potential of these substances in the making of fire extinguishers have not demonstrated their success under standard test conditions. Nor is there any detail available on how those easily perishable substances can be preserved for several months for use as fire extinguishers when their need would arise.
  • the present invention relates to a process for preparing a fire- extinguisher composition, comprising
  • the process further comprises adding an additive to the water containing extract of weed.
  • the additive used in the process is a foaming agent selected from Sapindus mukorossi or Acacia concinna.
  • the weed biomass is present in amount of about 180 to 220 g per litre of water. In a more preferred embodiment, the weed biomass is present in amount of about 200 g per litre of water.
  • the weed biomass is selected from biomass of Lantana camara, Eichhornia crassipes, Prosopis, Marsilia, or any combination thereof.
  • the present invention also relates to a fire-extinguisher composition prepared by the process comprising:
  • a fire-extinguisher composition comprises:
  • the aqueous extract of weed has surface tension lower to water, dynamic viscosity (DV) and thermal conductivity (TC) higher than water.
  • the present invention provides a fire- extinguisher composition as and when used in extinguishing Class A fires.
  • Figure 1 illustrates the fall in dynamic viscosity with rise in temperature of the fire extinguisher composition based on the aqueous extracts of different weeds, in comparison to water.
  • Figure 2 illustrates the fall in surface tension with rise in temperature of the fire- extinguisher composition based on aqueous extracts of different weeds, in comparison to water.
  • Figure 3 illustrates the rise in thermal conductivity with rise in temperature of the fire-extinguisher composition based on aqueous extracts of different weeds, in comparison to water.
  • Figure 4 illustrates the relative enhancement in thermal conductivity of the fire- extinguisher composition based on aqueous extracts of different weeds at 35 and 55°C relative to water.
  • the “weeds” are the wild plants that grow in the gardens or fields of crops and prevent the cultivated plants from growing properly.
  • the present invention relates to a process for preparing fire-extinguisher composition from the weeds, the process comprising,
  • the weed biomass is soaked in water for about 48 hours to obtain the fire-extinguisher composition.
  • the weed biomass is chopped or unchopped leaves, stems or the whole plant of the weed.
  • the weed is selected from Lantana, Eichhomia, Prosopis; or Marsilia, or a combination thereof.
  • the process further comprises adding an additive to the water containing extract of a weed.
  • the additive is selected from a foaming agent not limited to Sapindus mukorossi or Acacia concinna. In yet preferred embodiment 0.5-2g per liter of dry powder of foaming agent is used.
  • the present invention provides a process of preparing fire-extinguisher composition from the widely available weeds which are usually free of cost.
  • the fire-extinguisher composition as prepared shows surface tension (ST) lower to water, dynamic viscosity (DV) and thermal conductivity (TC) higher than water.
  • the fire-extinguisher composition as prepared is stable for more than 1 year.
  • the present invention also relates to a fire-extinguisher composition of weeds prepared by the process as defined herein.
  • the fire-extinguisher composition comprises
  • all ingredients used in preparing fire-extinguisher composition were inexpensive and environment friendly.
  • the invention serves the cause of environmental protection because it may result in the large-scale utilization of the weeds thereby reducing the harm to biodiversity they cause.
  • the utilization will also exercise control over the unrestrained spread of the weeds.
  • the fire-extinguisher composition as prepared is non-toxic and biodegradable.
  • Lantana (Lantana camara), Eichhornia (Eichhornia crassipes), Prosopis (prosopis sp); and marsilia (Marsilia quadrifolia) are weeds which are well-established in India and are seen growing profusely in most parts of India. Eichhornia and Marsilea are aquatic while the other two are terrestrial. They constitute four of the most common weeds of the tropical/sub-tropical world.
  • Lantana Lantana camara
  • Prosopis sp prosopis
  • Eichhomia Eichhornia crassipes
  • marsilia Marsilia quadrifoli
  • Aqueous extract of Marsilia is prepared according to the process of Example 5.
  • Aqueous extract of Prosopis is prepared according to the process of Example 5.
  • the potential candidates i.e., aqueous extracts of weeds must have ST lower than water while DV and TC higher than water.
  • DV should not be more than twice that of water because spraying as well spreading of the formulation will get constrained.
  • compositions ST is significantly lower than that of water the gap being especially pronounced in case of Lantana and Eichhomia as shown in Figure 2.
  • the composition comprising the extracts of Lantana and Eichhomia were tested further for their efficacy as fire-extinguisher composition according to the relevant IS 15683: 2006 (Clause 8.3).
  • the fire-extinguisher composition should “extinguish all flames and no flame should be visible 10 minutes after complete discharge of the extinguisher”.
  • the compositions based on Lantana and Eichhornia passed this test while the water failed it.
  • Table 1 Results of the fire extinguishing test carried out as per the relevant IS 15683:2006 (Clause 8.3) standards at the accredited agency M/s Akash Uni-safe Equipment, Pvt Ltd, India

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

La présente invention concerne un procédé simple et pratique pour préparer une composition d'extinction d'incendie à partir des mauvaises herbes librement disponibles. Le procédé consiste à faire tremper de la biomasse de mauvaises herbes dans de l'eau pendant environ 12 à 60 heures ; et à séparer l'eau contenant un extrait de mauvaises herbes pour obtenir la composition d'extinction d'incendie. L'invention concerne également la composition d'extinction d'incendie préparée à partir de celle-ci.
PCT/IN2022/050042 2021-01-20 2022-01-20 Procédé de préparation d'une composition d'extinction d'incendie à partir de mauvaises herbes et compositions fabriquées à partir de celle-ci WO2022157804A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202141002678 2021-01-20
IN202141002678 2021-01-20

Publications (1)

Publication Number Publication Date
WO2022157804A1 true WO2022157804A1 (fr) 2022-07-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2022/050042 WO2022157804A1 (fr) 2021-01-20 2022-01-20 Procédé de préparation d'une composition d'extinction d'incendie à partir de mauvaises herbes et compositions fabriquées à partir de celle-ci

Country Status (1)

Country Link
WO (1) WO2022157804A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425885A (en) * 1992-12-02 1995-06-20 Fenglan Zhao Fire retarding and extinguishing composite
US20130053293A1 (en) * 2009-12-30 2013-02-28 John Dituro Biodegradable package for detergent

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425885A (en) * 1992-12-02 1995-06-20 Fenglan Zhao Fire retarding and extinguishing composite
US20130053293A1 (en) * 2009-12-30 2013-02-28 John Dituro Biodegradable package for detergent

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MEHER WAN ET AL.: "Heat transfer biofluids: A novel approach towards weed management", ECOLOGICAL ENGINEERING, vol. 84, 2015, pages 492 - 495, XP029292639, DOI: 10.1016/j.ecoleng.2015.09.020 *

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