WO2020035973A1 - Agent anti-oxydation de charbon et procédé de prévention d'oxydation de charbon - Google Patents

Agent anti-oxydation de charbon et procédé de prévention d'oxydation de charbon Download PDF

Info

Publication number
WO2020035973A1
WO2020035973A1 PCT/JP2019/015786 JP2019015786W WO2020035973A1 WO 2020035973 A1 WO2020035973 A1 WO 2020035973A1 JP 2019015786 W JP2019015786 W JP 2019015786W WO 2020035973 A1 WO2020035973 A1 WO 2020035973A1
Authority
WO
WIPO (PCT)
Prior art keywords
coal
antioxidant
surfactant
resin emulsion
oxidation
Prior art date
Application number
PCT/JP2019/015786
Other languages
English (en)
Japanese (ja)
Inventor
正樹 宮原
陽一 平野
たかし 吉川
Original Assignee
栗田工業株式会社
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 栗田工業株式会社 filed Critical 栗田工業株式会社
Priority to EP19849474.2A priority Critical patent/EP3800235A4/fr
Priority to KR1020217001413A priority patent/KR20210020140A/ko
Priority to CN201980040595.4A priority patent/CN112313314A/zh
Priority to US17/266,109 priority patent/US20210292674A1/en
Publication of WO2020035973A1 publication Critical patent/WO2020035973A1/fr
Priority to PH12020552209A priority patent/PH12020552209A1/en

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/10—Treating solid fuels to improve their combustion by using additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/18—Use of additives to fuels or fires for particular purposes use of detergents or dispersants for purposes not provided for in groups C10L10/02 - C10L10/16
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/26—After-treatment of the shaped fuels, e.g. briquettes
    • C10L5/32—Coating
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34—Other details of the shaped fuels, e.g. briquettes
    • C10L5/36—Shape
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/08—Inhibitors
    • C10L2230/081—Anti-oxidants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/14—Function and purpose of a components of a fuel or the composition as a whole for improving storage or transport of the fuel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2250/00—Structural features of fuel components or fuel compositions, either in solid, liquid or gaseous state
    • C10L2250/04—Additive or component is a polymer
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2250/00—Structural features of fuel components or fuel compositions, either in solid, liquid or gaseous state
    • C10L2250/06—Particle, bubble or droplet size
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2250/00—Structural features of fuel components or fuel compositions, either in solid, liquid or gaseous state
    • C10L2250/08—Emulsion details
    • C10L2250/082—Oil in water (o/w) emulsion
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2250/00—Structural features of fuel components or fuel compositions, either in solid, liquid or gaseous state
    • C10L2250/08—Emulsion details
    • C10L2250/086—Microemulsion or nanoemulsion
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/18—Spraying or sprinkling
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/20—Coating of a fuel as a whole or of a fuel component

Definitions

  • the present invention relates to an antioxidant for coal and a method for preventing oxidation of coal. More specifically, the present invention relates to a chemical and a method for preventing heat generation, heat storage, and spontaneous ignition associated with the oxidation of coal deposited in coal storage sites (yards, silos, etc.) such as coal mines, steelworks, and power plants. .
  • coal is left in a coal storage area with coal deposited. If the period of standing is long, carbon and sulfur contained in coal react with oxygen in the air, and natural oxidation proceeds. Then, the reaction heat generated during the natural oxidation accumulates as thermal energy inside the coal sediment, and the temperature inside the coal sediment rises, leading to spontaneous ignition.
  • Patent Document 1 Conventionally, in order to prevent such spontaneous heat generation and spontaneous ignition, when transferring and depositing coal, it has been proposed to transfer and / or deposit SBR latex-containing liquid while spraying the coal on the coal (Patent) Reference 1). It has also been proposed to spray a resin solution containing white powder on the surface of a pile of coal hills to form a white coating film (see Patent Document 2). It has also been proposed to spray an acrylic emulsion or a vinyl acetate emulsion on coal (see Patent Document 3).
  • the present invention has been made in view of the above circumstances, and is an antioxidant capable of coating the surface layer of a coal deposit (coal mine) and further suppressing the amount of oxygen permeated into the deposit.
  • the purpose is to provide.
  • the present inventors have found that the above-mentioned problems can be solved by setting the average particle size of the resin emulsion to be sprayed on the coal within a specific range, and have completed the present invention. Specifically, the present invention provides the following.
  • the present invention is an antioxidant for coal containing an oil-in-water type resin emulsion in which the average particle size of the emulsion particles is from 0.3 ⁇ m to 1.0 ⁇ m.
  • the present invention is the antioxidant for coal according to (1), further comprising a surfactant.
  • the present invention also relates to a method for producing coal by spraying an antioxidant for coal containing an oil-in-water type resin emulsion in which the average particle size of the emulsion particles is 0.3 ⁇ m or more and 1.0 ⁇ m or less to coal deposits. This is an oxidation prevention method.
  • the present invention is the method for preventing oxidation of coal according to (3), wherein the oil-in-water type resin emulsion is mixed with a surfactant to prepare the antioxidant for coal.
  • the antioxidant for coal contains an oil-in-water type resin emulsion in which the average particle size of the emulsion particles is in a specific range
  • the antioxidant for coal is sprayed on the surface of the coal deposit.
  • a consolidation layer having a high oxygen permeation suppression effect is formed on the surface of the coal deposit. Therefore, permeation of oxygen in the air atmosphere into the coal deposit is blocked, and oxidation of the coal can be prevented. Therefore, spontaneous heat generation and spontaneous ignition due to the oxidation reaction can be effectively prevented as compared with the related art. For this reason, it is possible to avoid accidents due to spontaneous heat generation and spontaneous ignition of the coal, and to reduce the burden of various maintenance and management related thereto.
  • the antioxidant for coal preferably further contains a surfactant.
  • a surfactant By adding a surfactant to a highly hydrophobic coal sediment, permeability can be improved, and a chemical solution can be spread to obtain a uniform coal solidified layer. This further reduces the permeability of oxygen to the coal sediment and further enhances the antioxidant effect.
  • the antioxidant for coal of the present invention contains an oil-in-water type resin emulsion in which the average particle size of the emulsion particles is from 0.3 ⁇ m to 0.6 ⁇ m.
  • the antioxidant for coal preferably further contains a surfactant.
  • the type of the resin in the resin emulsion is not particularly limited, but preferably contains at least one selected from an acrylic acid type, a methacrylic acid type, and a vinyl acetate type. Among them, it is more preferable to include one or more selected from butyl acrylate copolymer and vinyl acetate / acrylic acid copolymer.
  • the lower limit of the average particle size of the emulsion particles in the resin emulsion is 0.3 ⁇ m or more.
  • the lower limit of the average particle diameter is preferably at least 0.4 ⁇ m, more preferably at least 0.5 ⁇ m. If the average particle diameter is too small, even if the antioxidant for coal is sprayed on the surface of the coal deposit, the antioxidant effect as expected may not be obtained, which is not preferable.
  • the upper limit of the average particle size of the emulsion particles in the resin emulsion is 1.0 ⁇ m or less.
  • the upper limit of the average particle diameter is preferably 0.9 ⁇ m or less, more preferably 0.8 ⁇ m or less, further preferably 0.7 ⁇ m or less, and particularly preferably 0.6 ⁇ m or less. If the average particle diameter is too large, even if the antioxidant for coal is sprayed on the surface of the coal deposit, the antioxidant effect as expected may not be obtained, which is not preferable.
  • the average particle size of the emulsion particles in the resin emulsion means the average particle size measured using a laser analysis type particle size distribution analyzer / Shimadzu SALD-7500 @ nano (manufactured by Shimadzu Corporation).
  • the method for producing the resin emulsion is not particularly limited.
  • it can be easily prepared by emulsion polymerization of a monomer component. More specifically, it can be prepared by polymerizing a monomer component in a micelle formed in water with an emulsifier with a polymerization initiator.
  • the antioxidant for coal preferably further contains a surfactant.
  • the type of surfactant is not particularly limited, and may be any of anionic, cationic, nonionic and amphoteric surfactants.
  • the surfactant is preferably a nonionic type or a cationic type, and particularly preferably a nonionic type. Due to the hydrophobic nature of the coal sediment surface, the use of nonionic or cationic surfactants makes the surface of the coal sediment more compatible with the resin emulsion, resulting in more compact consolidation. It is considered that a layer is formed.
  • anionic surfactants include sulfonic acid surfactants, more specifically, di-2-ethylhexyl sulfosuccinate Na salt-based surfactants.
  • cationic surfactant include an ammonium salt-based surfactant, and more specifically, a trialkylbenzylammonium salt-based surfactant.
  • nonionic surfactants include ether surfactants, and more specifically, polyoxyalkylene alkyl ether surfactants.
  • amphoteric surfactant include a betaine surfactant, more specifically, a fatty acid amidopropyl betaine surfactant.
  • the above resin emulsion is sprayed on coal deposits (coal piles). It is more preferable to spray a mixture of the above resin emulsion and the above surfactant on coal deposits (coal pits).
  • the “coal deposit” or “coal mine” includes all of the deposited coal, and does not necessarily need to be a mountain-like deposit. All the coal aggregates, such as the coal deposits piled up in the coal storage and the coals charged and deposited in the container, shall be referred to as "coal deposits” or "coal piles”.
  • the oil-in-water type resin emulsion may be used alone as the antioxidant for coal, or a mixture of the oil-in-water type resin emulsion and the surfactant may be used as the antioxidant for coal.
  • a mixture in which the oil-in-water type resin emulsion and the surfactant are mixed in advance may be brought to the site, or the oil-in-water type resin emulsion And the surfactant may be individually brought to the site, and the respective materials may be mixed at the site.
  • the concentration of the resin emulsion and the surfactant are not particularly limited, the lower limit of the solid content concentration of the resin emulsion as the concentration of the antioxidant for coal used when spraying the coal sediment (coal mine) is as follows.
  • the content is preferably 0.005% by weight or more, more preferably 5% by weight or more, even more preferably 10% by weight or more based on the antioxidant for coal.
  • the upper limit of the solid content concentration of the resin emulsion is preferably 50% by weight or less, more preferably 40% by weight or less, and further preferably 20% by weight or less based on the antioxidant for coal. preferable.
  • the lower limit of the solid concentration of the surfactant is preferably 0.005% by weight or more, more preferably 0.01% by weight or more, and more preferably 0.1% by weight or less based on the antioxidant for coal. % Is more preferable.
  • the upper limit of the solid content concentration of the surfactant is preferably 50% by weight or less, more preferably 10% by weight or less, and more preferably 1% by weight or less based on the antioxidant for coal. More preferred.
  • a means for spraying a means such as spraying with a hose from a rain gun, a water sprinkler, or a stacker or a reclaimer can be used.
  • the application amount of the antioxidant for coal is not particularly limited, but considering both the effect of preventing spontaneous heat generation and spontaneous ignition and the cost of chemicals, the surface area of the coal deposit (coal mountain) is 1 m 2 as a guide.
  • the amount of the active ingredient may be applied so as to be 0.5 to 2,000 g, preferably 10 to 1,500 g, and particularly preferably 100 to 1,000 g.
  • the test piece left for one week was housed in an apparatus having the specifications shown in FIG. 1 so that the test piece became a boundary wall separating two spaces. Then, as shown in FIG. 1, the standard air was continuously supplied to one of the two spaces serving as the boundary walls, and the pure nitrogen was continuously supplied to the other space. At this time, the flow rates of the standard air and pure nitrogen were all 30 mL / min, and the temperatures of the standard air and pure nitrogen were all room temperature. Then, after continuously sending the standard air and pure nitrogen for 4 hours, the oxygen concentration in the space on the nitrogen side was measured. For the measurement of the oxygen concentration, an oxygen concentration meter 3600 sn (manufactured by Hack Ultra) was used. Then, the case where the oxygen concentration was 7.0% or less was evaluated as “ ⁇ ”, and the case where the oxygen concentration exceeded 7.0% was evaluated as “X”. Table 1 shows the results.
  • Oil-in-water type resin emulsion The oil-in-water type resin emulsion is an emulsion of an acrylic acid copolymer.
  • Surfactant The nonionic surfactant is a polyoxyalkylene alkyl ether-based surfactant.
  • the cationic surfactant is a trialkylbenzylammonium salt-based surfactant.
  • the anionic surfactant is a di-2-ethylhexyl sulfosuccinate Na salt-based surfactant.
  • the amphoteric surfactant is a fatty acid amidopropyl betaine surfactant.
  • the antioxidant for coal contains a surfactant in addition to the resin emulsion
  • the antioxidant effect is further enhanced (Examples 2 to 5, 7 to 10).
  • the surfactant is a nonionic or cationic surfactant
  • the antioxidant effect is further enhanced (Examples 2, 3, 7, and 8). Due to the hydrophobic nature of the coal sediment surface, the use of nonionic or cationic surfactants allows the surface of the coal sediment to become more compatible with the resin emulsion, resulting in more compact consolidation. It is considered that a layer is formed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un agent anti-oxydation qui peut être revêtu sur la couche de surface d'un dépôt de charbon (pile de charbon) pour supprimer davantage la quantité d'oxygène pénétrant à l'intérieur du dépôt. Cet agent anti-oxydation de charbon contient une émulsion de résine aqueuse, le diamètre moyen des particules d'émulsion étant compris entre 0,3 µm et 1,0 µm inclus. De préférence, cet agent anti-oxydation contient en outre un tensioactif. Un opérateur pulvérise l'agent anti-oxydation sur un dépôt de charbon, formant ainsi une couche cimentée avec un effet élevé de suppression de perméation de l'oxygène sur la surface de dépôt de charbon. Par conséquent, l'oxygène dans l'air atmosphérique est empêché de pénétrer à l'intérieur du dépôt de charbon, ce qui permet la prévention de l'oxydation du charbon.
PCT/JP2019/015786 2018-08-13 2019-04-11 Agent anti-oxydation de charbon et procédé de prévention d'oxydation de charbon WO2020035973A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19849474.2A EP3800235A4 (fr) 2018-08-13 2019-04-11 Agent anti-oxydation de charbon et procédé de prévention d'oxydation de charbon
KR1020217001413A KR20210020140A (ko) 2018-08-13 2019-04-11 석탄용 산화방지제 및 석탄의 산화방지방법
CN201980040595.4A CN112313314A (zh) 2018-08-13 2019-04-11 煤用抗氧化剂和煤的抗氧化方法
US17/266,109 US20210292674A1 (en) 2018-08-13 2019-04-11 Antioxidant for coal and method for preventing oxidation of coal
PH12020552209A PH12020552209A1 (en) 2018-08-13 2020-12-17 Antioxidant for coal and method for preventing oxidation of coal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-152252 2018-08-13
JP2018152252A JP2020026489A (ja) 2018-08-13 2018-08-13 石炭用酸化防止剤及び石炭の酸化防止方法

Publications (1)

Publication Number Publication Date
WO2020035973A1 true WO2020035973A1 (fr) 2020-02-20

Family

ID=69525322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/015786 WO2020035973A1 (fr) 2018-08-13 2019-04-11 Agent anti-oxydation de charbon et procédé de prévention d'oxydation de charbon

Country Status (8)

Country Link
US (1) US20210292674A1 (fr)
EP (1) EP3800235A4 (fr)
JP (1) JP2020026489A (fr)
KR (1) KR20210020140A (fr)
CN (1) CN112313314A (fr)
PH (1) PH12020552209A1 (fr)
TW (1) TW202020131A (fr)
WO (1) WO2020035973A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4931589A (fr) * 1972-07-21 1974-03-22
JPS5853037A (ja) 1981-09-25 1983-03-29 Victor Co Of Japan Ltd 円盤状情報記録媒体
JPS61223084A (ja) * 1985-03-18 1986-10-03 カルゴン　コーポレーシヨン ダストの抑制方法及びその為のエマルジヨン
JPH0288695A (ja) * 1988-09-27 1990-03-28 Mitsui Cyanamid Co 石炭の取扱管理方法
JPH0662974A (ja) 1992-08-20 1994-03-08 Gastar Corp シャワー装置およびその温度制御方法
JPH10259390A (ja) * 1997-03-19 1998-09-29 Nippon Steel Corp 野積み石炭の表面被覆方法
JP2000096040A (ja) * 1998-09-25 2000-04-04 Lion Corp 石炭の貯蔵安定化剤
JP3948447B2 (ja) 2003-09-29 2007-07-25 栗田工業株式会社 石炭の自然発火防止方法
JP2013203525A (ja) * 2012-03-28 2013-10-07 Kurita Water Ind Ltd 野積み堆積物の発塵及び／又は水分上昇防止方法
JP6524480B1 (ja) * 2017-11-14 2019-06-05 東洋インキＳｃホールディングス株式会社 屋外堆積物飛散防止用コート剤

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219454A (en) * 1978-09-05 1980-08-26 Air Products And Chemicals, Inc. Vinyl acetate copolymer emulsions for paint
AU605302B2 (en) * 1986-12-19 1991-01-10 Ziegler Coal Holding Company Process for inhibiting the spontaneous oxidation of low rank coal
JP3855602B2 (ja) * 2000-05-31 2006-12-13 大日本インキ化学工業株式会社 樹脂エマルジョンの製造法、塗料組成物および塗装方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4931589A (fr) * 1972-07-21 1974-03-22
JPS5853037A (ja) 1981-09-25 1983-03-29 Victor Co Of Japan Ltd 円盤状情報記録媒体
JPS61223084A (ja) * 1985-03-18 1986-10-03 カルゴン　コーポレーシヨン ダストの抑制方法及びその為のエマルジヨン
JPH0288695A (ja) * 1988-09-27 1990-03-28 Mitsui Cyanamid Co 石炭の取扱管理方法
JPH0662974A (ja) 1992-08-20 1994-03-08 Gastar Corp シャワー装置およびその温度制御方法
JPH10259390A (ja) * 1997-03-19 1998-09-29 Nippon Steel Corp 野積み石炭の表面被覆方法
JP2000096040A (ja) * 1998-09-25 2000-04-04 Lion Corp 石炭の貯蔵安定化剤
JP3948447B2 (ja) 2003-09-29 2007-07-25 栗田工業株式会社 石炭の自然発火防止方法
JP2013203525A (ja) * 2012-03-28 2013-10-07 Kurita Water Ind Ltd 野積み堆積物の発塵及び／又は水分上昇防止方法
JP6524480B1 (ja) * 2017-11-14 2019-06-05 東洋インキＳｃホールディングス株式会社 屋外堆積物飛散防止用コート剤

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3800235A4 *

Also Published As

Publication number Publication date
PH12020552209A1 (en) 2021-06-28
CN112313314A (zh) 2021-02-02
US20210292674A1 (en) 2021-09-23
EP3800235A4 (fr) 2021-08-04
TW202020131A (zh) 2020-06-01
EP3800235A1 (fr) 2021-04-07
KR20210020140A (ko) 2021-02-23
JP2020026489A (ja) 2020-02-20

Similar Documents

Publication Publication Date Title
RU2735531C2 (ru) Способы и системы борьбы с пылью
CN105038445A (zh) 含二氧化硅气凝胶的水性浆料、其制备方法及应用
JP4724719B2 (ja) ダスト抑制方法および装置
US4594268A (en) Method for the control of dust using methacrylate containing emulsions and compositions
JPS61223084A (ja) ダストの抑制方法及びその為のエマルジヨン
JP2011042741A (ja) 粉塵防止剤および粉塵防止方法
JP2021520941A (ja) 火災抑制泡沫を形成する組成物、前駆体、それらの使用およびそれらを製造する方法
CN104017543A (zh) 电厂输煤系统环保型复合降尘剂
US10767090B2 (en) Method and composition for dust control
WO2020035973A1 (fr) Agent anti-oxydation de charbon et procédé de prévention d'oxydation de charbon
CN104513560A (zh) 防火涂料
JP5861535B2 (ja) 野積み堆積物の発塵及び／又は水分上昇防止方法
JP2005105029A (ja) 石炭の自然発火防止方法
US3666707A (en) Slurry additive for ablative water fire extinguishing systems
EA037075B1 (ru) Добавки к противотурбулентным полимерам
WO2020138106A1 (fr) Groupe de particules sphériques creuses de silice, agent d'encapsulation, dispersion liquide et dispersion aqueuse
JP7480816B2 (ja) 撥水防塵剤、撥水防塵剤用イオン性ワックスエマルジョン、撥水防塵剤の製造方法及び野積み堆積物の発塵及び水分上昇防止方法
US11377395B2 (en) Controlled-release type fertilizer with decreased floating property comprising polyoxyethylene alky(-aryl) ether and method for preparing the same
JP2008100873A (ja) アスベスト飛散防止工法
JPS58120519A (ja) 微粉末の表面処理方法
KR101558937B1 (ko) 비산 방지용 조성물 및 이를 이용한 비산 방지 방법
CN103254601A (zh) 无机阻燃不饱和树脂及用于该树脂的降粘分散助剂
JPS58109557A (ja) 野積みした粉粒状物貯蔵体の表面処理剤
JP7324454B2 (ja) 固体原燃料の発熱遅延剤及び発熱遅延方法
CN116589983A (zh) 一种降尘抑尘剂及其制备方法和应用

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19849474

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019849474

Country of ref document: EP

Effective date: 20201230

Ref document number: 20217001413

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE