WO2020120748A1 - Procédé de désodorisation d'air d'échappement - Google Patents

Procédé de désodorisation d'air d'échappement Download PDF

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Publication number
WO2020120748A1
WO2020120748A1 PCT/EP2019/085099 EP2019085099W WO2020120748A1 WO 2020120748 A1 WO2020120748 A1 WO 2020120748A1 EP 2019085099 W EP2019085099 W EP 2019085099W WO 2020120748 A1 WO2020120748 A1 WO 2020120748A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust air
weight
aerosol
odorous substances
dust
Prior art date
Application number
PCT/EP2019/085099
Other languages
German (de)
English (en)
Inventor
Udo Hüggenberg
Franziska Hüggenberg
Original Assignee
Greenairsystems 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 Greenairsystems Gmbh filed Critical Greenairsystems Gmbh
Priority to EP19853263.2A priority Critical patent/EP3893946A1/fr
Publication of WO2020120748A1 publication Critical patent/WO2020120748A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00—Methods specially adapted for refuse
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1487—Removing organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20—Organic absorbents
    • B01D2252/202—Alcohols or their derivatives
    • B01D2252/2023—Glycols, diols or their derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20—Organic absorbents
    • B01D2252/202—Alcohols or their derivatives
    • B01D2252/2023—Glycols, diols or their derivatives
    • B01D2252/2028—Polypropylene glycol, ethers or esters thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/406—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0266—Other waste gases from animal farms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/74—Cleaning the electrodes
    • B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact

Definitions

  • the invention relates to a process for the deodorization of exhaust air discharged from buildings or systems, which contains dust and gaseous odorous substances, in which, in a first process step, the dust contained in the exhaust air is removed and in one
  • Dust is understood here to mean the finest, solid particles of different sizes and different origins, which can remain suspended in gases, in particular in the air, for a certain period of time.
  • Such a method is known for example from DE 10 2010 001 678 U1.
  • This known method is used for deodorization of the exhaust air from a cattle barn which, in addition to the dust contaminated with odorous substances, contains a considerable amount of a gaseous odorous substance, namely ammonia.
  • both the dedusting and the aftertreatment of the largely dedusted exhaust air are carried out with the addition of water, so that contaminated sludges and waste water occur to a considerable extent, the disposal of which is highly problematic.
  • the visible impurities contained in the exhaust air of a cattle shed consist to a large extent of dust.
  • the sources of dust in the cattle shed are the animals themselves, the feed, the bedding material and dried faeces. This dust is almost exclusively organic with one relatively high proportion of coarse dust. Usually attached to the dust are germs, which also come from the animals themselves and / or animal feed.
  • Ammonia is perceived as particularly unpleasant in the exhaust air from cattle houses. Ammonia is a colorless gas with a pungent, pungent odor. It occurs in the cattle barn when protein is broken down or
  • Cattle stalls are particularly intensive when the dwell time of feces and urine in the barn is relatively long and the air that passes through comes into intensive contact with urine and feces. Because of the particularly unpleasant odor nuisance caused by ammonia, the exhaust air purification methods known according to the prior art place particular emphasis on the complete removal of ammonia. For this purpose, the exhaust air is washed in the last cleaning step with the additional addition of acid, which leads to particularly harmful waste water.
  • the invention proposes, starting from the method of the type mentioned at the outset, that the dedusting of the exhaust air takes place dry and without the addition of liquid, and that the subsequent deodorization of the exhaust air takes place by spraying an air-borne aerosol into the exhaust air, which consists of a 0 , 1% to 8% aqueous solution of an active ingredient which consists of 55-65% by weight of triethyl citrate, 17.5-22.5% by weight of 1, 2 propanediol and 17.5-22.5% by weight consists of di-propylene glycol methyl ether.
  • the teaching of the invention is based on the fact that the particularly odor-intensive odorants are already removed to a large extent - attached to the dust particles - in the first process step dry from the exhaust air.
  • the gaseous odorous substances still remaining in the dedusted exhaust air can be deodorized.
  • Deodorization is understood here to mean the intended concealment or the targeted removal of undesirable odors, which in the present case is achieved by the active ingredient specified in claim 1, which is both overlapping and part of the aerosol introduced into the exhaust air
  • the only remaining waste in the process according to the invention is dry dust from mostly organic material, which can be burned in a suitable incineration plant for the generation of energy in a profitable and environmentally friendly manner. Another advantage is that the plants for operating the process are no longer exposed to the corrosive effects of moisture and acid.
  • the invention provides that the dedusting which takes place in the first method step takes place in an electrostatic dust separator. Electrostatic
  • Dust separators have the particular advantage that they clog or stick less easily and are easy to clean mechanically. This is particularly important in the case of a method of the present type because the dust made of organic material from a cattle shed often sticks or clumps.
  • the amount of air-borne aerosol introduced into the exhaust air is at least 0.001 g per m 3 of exhaust air. This small amount of aerosol is sufficient to bring enough active ingredient into the dedusted exhaust air.
  • the invention furthermore proposes that the spraying in of the aerosol with the aid of a two-substance nozzle with the admixture of compressed air at a pressure of 0.6-6.3 bar and with a maximum droplet size of 30 pm.
  • an airborne aerosol is already entered in the supply air of the building or the system in an amount of 0.001-0 .3g per m 3 , which consists of a 0.1% to 8% aqueous solution of an active ingredient which consists of 55-65% by weight of triethyl citrate, 17.5-22.5% by weight of 1, 2 propanediol and 17.5-22.5% by weight of di-propylene glycol methyl ether .
  • the active ingredient has no harmful effects on humans or animals because it only contains food-grade ingredients.
  • the evaporation of the water diluting the active ingredient also results in a beneficial cooling of the atmosphere in the building or system.
  • a cattle shed (building or facility) is designated by the reference number 1.
  • This cattle barn 1 has air supply openings 1 a for the
  • Fresh air supply and an air discharge opening 1 b for the discharge of exhaust air is assigned a fan 2, which sucks the exhaust air from the cattle shed 1 and feeds it to an exhaust air purification system, which is denoted overall by reference number 3.
  • the exhaust air extracted from the cattle house 1 and fed to the exhaust air purification system 3 first flows through a dry, for example electrostatic, working dust filter 4, which can be cleaned dry in a simple manner, for example by shaking.
  • a dry, for example electrostatic, working dust filter 4 which can be cleaned dry in a simple manner, for example by shaking.
  • Exhaust air stream separated, loaded with odorous substances is removed dry from the exhaust air purification system 3 by means of a suitable discharge device 5 and is used for a useful purpose, for example an incineration plant, not shown, for energy generation.
  • the largely dust-free exhaust air is then passed through a deodorization chamber 6 arranged in the exhaust air purification system 3, in which an airborne aerosol is sprayed into the exhaust air stream with the aid of two-substance nozzles 7.
  • This aerosol consists of a 0.1% to 8% aqueous solution of an active ingredient, which consists of 55 - 65% by weight of triethyl citrate, 17.5 - 22.5% by weight of 1, 2 propanediol and 17.5% 22.5% by weight consists of di-propylene glycol methyl ether.
  • the amount of aerosol is at least 0.001 g per m 3 of exhaust air.
  • Two-substance nozzles 7 work with the admixture of compressed air with a pressure of 0.6-6.3 bar and a maximum droplet size of 30 pm.
  • the aqueous solution of the active ingredient required for the production of the aerosol is kept in a storage tank 8 and fed to the high-pressure nozzles 7 via a high-pressure pump 9.
  • a high-pressure pump 9 At the deodorization chamber 6 there is an exhaust pipe socket 10, via which the cleaned and deodorized exhaust air is blown off into the atmosphere.
  • the deodorization of the dedusted exhaust air in the deodorization chamber 6 takes place by the action of the active substance introduced with the aerosol on the gaseous odorous substances still contained in the dedusted exhaust air, specifically by covering and / or catalytic decomposition.
  • the water used as a solvent for the active ingredient evaporates completely, so that the in the
  • a small part of the active ingredient solution held in the storage tank 8 can also be introduced as an airborne aerosol into the fresh air supplied to the building or system, in an amount of 0.001-0.03 g per m 3 This significantly reduces the formation of bad smells in the building or system from the outset.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

L'invention concerne un procédé de désodorisation d'air d'échappement évacué de bâtiments ou d'installations (1), lequel contient de la poussière chargée en substances odorantes et des substances odorantes sous forme gazeuse. Lors d'une première étape du procédé, la poussière chargée en substances odorantes contenue dans l'air d'échappement est éliminée de celui-ci, et lors d'une étape de procédé suivante, les substances odorantes sous forme gazeuse contenues dans l'air d'échappement dépoussiéré sont désodorisées. L'invention vise à totalement éviter dans un procédé de ce type la production de déchets problématiques sous la forme de boue ou d'eaux usées. L'invention propose à cet effet que le dépoussiérage de l'air d'échappement soit effectué à sec et sans ajout de liquide, et que la désodorisation qui suit de l'air d'échappement soit effectué par pulvérisation d'un aérosol en suspension dans l'air dans l'air d'échappement, lequel est constitué d'une solution aqueuse de 0,1 à 8 % en poids d'un principe actif, lequel est constitué à hauteur de 55 - 65 % en poids de citrate de triéthyle, à hauteur de 17,5 - 22,5 % en poids de 1,2-propanediol et à hauteur de 17,5 - 22,5 en % en poids d'éther diméthylique de propylène glycol.
PCT/EP2019/085099 2018-12-13 2019-12-13 Procédé de désodorisation d'air d'échappement WO2020120748A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19853263.2A EP3893946A1 (fr) 2018-12-13 2019-12-13 Procédé de désodorisation d'air d'échappement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018132114.7A DE102018132114A1 (de) 2018-12-13 2018-12-13 Verfahren zur Desodorierung von Abluft
DE102018132114.7 2018-12-13

Publications (1)

Publication Number Publication Date
WO2020120748A1 true WO2020120748A1 (fr) 2020-06-18

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ID=69631489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/085099 WO2020120748A1 (fr) 2018-12-13 2019-12-13 Procédé de désodorisation d'air d'échappement

Country Status (3)

Country Link
EP (1) EP3893946A1 (fr)
DE (1) DE102018132114A1 (fr)
WO (1) WO2020120748A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112473337A (zh) * 2020-09-04 2021-03-12 埃克赛姆光电技术（苏州）有限公司 原木蒸煮尾气综合处理方法
CN115739396A (zh) * 2022-12-01 2023-03-07 东北农业大学 畜禽舍高压静电与酸雾耦合除氨除尘一体机及除尘方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022101323U1 (de) 2022-03-10 2022-04-22 Greenairsystems Gmbh Vorrichtung zur Desodorierung von Abluft

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11244730A (ja) * 1998-03-06 1999-09-14 Kanai Hiroaki 空気清浄機
WO2002013776A2 (fr) * 2000-08-11 2002-02-21 The Procter & Gamble Company Procede assurant une meilleure application desodorisante sous les bras
US20140162932A1 (en) * 2011-07-26 2014-06-12 Takasago International Corporation Aqueous liquid fragrance composition and aqueous liquid fragrance using same
FR3019048A1 (fr) * 2014-03-28 2015-10-02 Parfleur Parfums Funel Dispositif de diffusion de substances aromatiques.
JP2016202557A (ja) * 2015-04-22 2016-12-08 高砂香料工業株式会社 消臭剤組成物

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010001678A1 (de) 2010-02-08 2011-08-11 Alfred Kärcher GmbH & Co. KG, 71364 Kehrmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11244730A (ja) * 1998-03-06 1999-09-14 Kanai Hiroaki 空気清浄機
WO2002013776A2 (fr) * 2000-08-11 2002-02-21 The Procter & Gamble Company Procede assurant une meilleure application desodorisante sous les bras
US20140162932A1 (en) * 2011-07-26 2014-06-12 Takasago International Corporation Aqueous liquid fragrance composition and aqueous liquid fragrance using same
FR3019048A1 (fr) * 2014-03-28 2015-10-02 Parfleur Parfums Funel Dispositif de diffusion de substances aromatiques.
JP2016202557A (ja) * 2015-04-22 2016-12-08 高砂香料工業株式会社 消臭剤組成物

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112473337A (zh) * 2020-09-04 2021-03-12 埃克赛姆光电技术（苏州）有限公司 原木蒸煮尾气综合处理方法
CN115739396A (zh) * 2022-12-01 2023-03-07 东北农业大学 畜禽舍高压静电与酸雾耦合除氨除尘一体机及除尘方法
CN115739396B (zh) * 2022-12-01 2023-05-16 东北农业大学 畜禽舍高压静电与酸雾耦合除氨除尘一体机及除尘方法

Also Published As

Publication number Publication date
DE102018132114A1 (de) 2020-06-18
EP3893946A1 (fr) 2021-10-20

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