KR20230009574A - Manufacturing method of mold release agent for casting and casting using waste cooking oil - Google Patents
Manufacturing method of mold release agent for casting and casting using waste cooking oil Download PDFInfo
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- glycerin
- cooking oil
- waste cooking
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- release agent
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- 239000008162 cooking oil Substances 0.000 title claims abstract description 53
- 239000002699 waste material Substances 0.000 title claims abstract description 52
- 238000005266 casting Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000006082 mold release agent Substances 0.000 title claims abstract description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 162
- 235000011187 glycerol Nutrition 0.000 claims abstract description 80
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 68
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 13
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 12
- 238000004508 fractional distillation Methods 0.000 claims description 2
- 239000003225 biodiesel Substances 0.000 description 23
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 239000012295 chemical reaction liquid Substances 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 235000015112 vegetable and seed oil Nutrition 0.000 description 5
- 239000008158 vegetable oil Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- -1 aliphatic alcohols Chemical class 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000003925 fat Substances 0.000 description 4
- 235000019197 fats Nutrition 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000003377 acid catalyst Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- NBTOZLQBSIZIKS-UHFFFAOYSA-N methoxide Chemical compound [O-]C NBTOZLQBSIZIKS-UHFFFAOYSA-N 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- 235000019737 Animal fat Nutrition 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 125000005233 alkylalcohol group Chemical group 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
-
- 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
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
- C10L1/026—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only for compression ignition
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/003—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fatty acids with alcohols
-
- 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
- C10L2200/00—Components of fuel compositions
- C10L2200/04—Organic compounds
- C10L2200/0461—Fractions defined by their origin
- C10L2200/0469—Renewables or materials of biological origin
- C10L2200/0484—Vegetable or animal oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/36—Release agents or mold release agents
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Fats And Perfumes (AREA)
Abstract
Description
본 발명은 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법에 관한 것으로, 더욱 상세하게는 폐식용유에 메탄올을 혼합하여 글리세린을 분리함으로써 고수율로 글리세린을 분리할 수 있으며, 투입된 메탄올은 수거하여 재사용하기 때문에 제조비용이 낮고 친환경적인 효과를 나타내는 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법에 관한 것이다.The present invention relates to a method for producing a mold release agent for casting and casting using waste cooking oil, and more particularly, by mixing methanol with waste cooking oil to separate glycerin, glycerin can be separated in high yield, and the methanol introduced is collected and reused Therefore, it relates to a method for manufacturing a mold release agent for casting and casting using waste cooking oil, which has a low manufacturing cost and an environmentally friendly effect.
일반적으로, 글리세린은 치약, 샴푸 등 일반 가정용품으로부터 화장품, 의약품에 이르기까지 다양한 용도에 사용되고 있어 그 수요가 증가하고 있다. 글리세린은 주로 유지나 식물성 기름을 원료로 지방산을 만들 때나 비누를 만들 때 부산물로 나오는 것을 증발법으로 정제하여 만들거나, 일부 프로필렌(propylene)을 원료로 하여 합성하여 왔다.In general, glycerin is used for various purposes ranging from general household items such as toothpaste and shampoo to cosmetics and pharmaceuticals, and the demand thereof is increasing. Glycerin has been mainly made by refining by-products from fats and oils or vegetable oils when making fatty acids or soaps by evaporation, or synthesized using some propylene as a raw material.
한편, 석유에너지 자원의 고갈에 따른 화석 연료의 가격 상승 및 화석 연료의 과다 사용에 따른 이산화탄소 발생을 억제하기 위하여, 새로운 환경 친화적인 에너지원의 하나로 바이오디젤의 생산을 적극 늘려가는 추세에 있다. 바이오디젤은 글리세라이드(glyceride)함유 동물성유지나 식물성 기름에 메탄올과 같은 지방족 알코올을 반응시켜 제조하는데, 이 경우 바이오디젤과 함께 글리세린이 부산물로 생성되며, 메탄올을 사용하는 경우 중량기준으로 대략 바이오디젤에 대하여 글리세린이 10 : 1 의 비율로 생성된다.On the other hand, in order to suppress the increase in the price of fossil fuels due to the depletion of petroleum energy resources and the generation of carbon dioxide due to excessive use of fossil fuels, there is a trend to actively increase the production of biodiesel as one of the new environmentally friendly energy sources. Biodiesel is produced by reacting glyceride-containing animal fat or vegetable oil with aliphatic alcohol such as methanol. In this case, glycerin is produced as a by-product along with biodiesel. to glycerin at a ratio of 10:1.
바이오디젤 제조방법은 널리 알려진 방법으로 동물성 유지 및 식물성 기름을 알칼리 촉매 하에서 지방족 알콜과 반응시키는 전술의 대표적인 방법 이외에도 여러 다른 방법이 있다. 그 몇 가지 예를 들어 보면, 첫째, 동물성 유지 및 식물성 기름을 황산과 같은 산을 촉매로 하여 고온, 고압하에서 지방족 알콜과 반응시키는 방법, 둘째, 동물성 유지 및 식물성 기름을 일차 가수분해하여 지방산을 만들고, 이 지방산을 다시 산 촉매하에서 지방족 알콜과 반응시키는 방법, 셋째, 동물성 유지 및 식물성 기름을 산화란타니움과 같은 불용성 촉매를 사용하여 지방족 알콜과 반응시키는 방법 등이 있다. 알카리 촉매로는 현재 소듐메톡사이드가 널리 사용되고 있으며, 가성소다, 포타시움하이드록사이드 등도 사용되고 있다.The biodiesel production method is a widely known method, and there are several other methods besides the above representative method of reacting animal fats and vegetable oils with aliphatic alcohols in the presence of an alkali catalyst. To give some examples, first, a method of reacting animal fats and vegetable oils with aliphatic alcohols under high temperature and high pressure using an acid such as sulfuric acid as a catalyst; , a method of reacting these fatty acids with aliphatic alcohols under an acid catalyst, and third, a method of reacting animal fats and vegetable oils with aliphatic alcohols using an insoluble catalyst such as lanthanum oxide. Currently, sodium methoxide is widely used as an alkali catalyst, and caustic soda, potassium hydroxide, and the like are also used.
한편 바이오디젤 층에 존재하는 미량의 알코올과 촉매는 물로 씻어내게 되는데 , 씻어낸 물과 글리세린 층을 합친 후에 연산 또는 황산 등으로 중화한 것을 일반적으로 조글리세린(Crude glycerin)이라고 한다. 이러한 조 글리세린은 정제를 통해서 식품제조 약학, 플라스틱 및 화학물 합성과 같은 분야에 사용될 수 있다. 바이오디젤의 부산물로 조글리세린이 다양하게 생성됨에 따라 이를 정제하여 합성 글리세린이나 천연 정제 글리세린을 대체하기 위한 조글리세린에 대한 정제방법이 활발히 개발되고 있으면 현재 증발법으로 다수 생산되고 있다.On the other hand, trace amounts of alcohol and catalyst present in the biodiesel layer are washed off with water. After combining the washed water and the glycerin layer, neutralization with acid or sulfuric acid is generally called crude glycerin. Through purification, this crude glycerin can be used in fields such as food manufacturing, pharmacy, plastics and chemical synthesis. As crude glycerin is produced in various ways as a by-product of biodiesel, a purification method for crude glycerin is being actively developed to replace synthetic glycerin or natural purified glycerin by purifying it, and currently, many are produced by evaporation.
그러나 증발법은 고온에서 진행되기 때문에, 비용이 많이 들고 글리세린의 올리고머 또는 폴리머가 존재하여 상기 트랜스 에스테르화 반응에서 산 촉매가 사용될 때, 알킬알코올과 글리세린 간에 형성된 다양한 에테르가 미량 존재한다. 따라서 증발법에 의한 글리세린의 정제는 조글리세린 내에 존재하는 색소 성분과 기타 유기물에 대한 분리가 용이하지 않아 이를 분리하기 위하여 증발한 글리세린을 다시 활성탄 및 활성탄 여과공정을 거쳐 순도를 높여야 한다.However, since the evaporation method proceeds at a high temperature, it is expensive, and when an acid catalyst is used in the transesterification reaction due to the presence of oligomers or polymers of glycerin, various ethers formed between alkyl alcohol and glycerin are present in small amounts. Therefore, in the purification of glycerin by the evaporation method, it is not easy to separate pigment components and other organic substances present in crude glycerin, and in order to separate them, the evaporated glycerin must be subjected to activated carbon and activated carbon filtration to increase the purity.
이러한 증발법에 의한 정제장치의 실시예로 대한민국 공개특허공보 제10-2012-0064014호는 바이오 디젤 제조장치에 관한 것으로서, 본 발명에 따른 바이오 디젤 제조장치는 세척된 폐식용유나 미세조류 오일을 에스테르화시키기 위하여 상기 폐식용유나 미세조류 오일에 메틸올 및 산촉매를 공급하여 혼합하는 제1교반조와, 메탄올과 촉매를 혼합하여 메톡사이드를 생성하는 제2교반조와, 상기 제1교반조에서 생성된 에스테르과 상기 제2교반조에서 생성된 메톡사이드를 공급받아 글리세린 및 바이오 디젤을 생성하는 반응조와, 상기 반응조에서 분리되어 이송된 바이오 디젤을 증발시켜 저장하는 바이오 디젤 분리유닛과, 상기 반응조에서 분리되어 이송된 글리세린에 함유된 이물질을 증발시켜 분리한 후 상기 글리세린을 저장하는 글리세린 분리 유닛을 개시한 바 있다.As an example of a purification device using the evaporation method, Korean Patent Publication No. 10-2012-0064014 relates to a biodiesel production device, and the biodiesel production device according to the present invention converts washed waste cooking oil or microalgae oil into an ester. A first stirring tank for supplying and mixing methylol and an acid catalyst to the waste cooking oil or microalgae oil to mix them, a second stirring tank for generating methoxide by mixing methanol and a catalyst, and an ester produced in the first stirring tank A reaction tank for generating glycerin and biodiesel by receiving the methoxide generated in the second stirring tank, a biodiesel separation unit for evaporating and storing the biodiesel separated and transported from the reaction tank, and A glycerin separation unit for storing the glycerin after evaporating and separating foreign substances contained in glycerin has been disclosed.
그런데, 종래의 바이오 디젤 제조 장치를 통한 글리세린의 정제방법은 증발법에 의하면서도 별도의 여과장치를 필요로 하여 생산에 필요한 비용이 증가할 뿐 만 아니라, 글리세린은 공정에서 얻어지는 부산물이므로 고순도의 글리세린을 정제하기 위한 글리세린 정제장치가 여전히 필요하다.However, the conventional method for purifying glycerin through a biodiesel manufacturing device is based on an evaporation method and requires a separate filtration device, which not only increases production costs, but also requires high-purity glycerin because glycerin is a by-product obtained in the process. A glycerin refiner for purification is still needed.
본 발명의 목적은 폐식용유에 메탄올을 혼합하여 글리세린을 분리함으로써 고수율로 글리세린을 분리할 수 있으며, 투입된 메탄올은 수거하여 재사용하기 때문에 제조비용이 낮고 친환경적인 효과를 나타내는 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법을 제공하는 것이다.An object of the present invention is to separate glycerin by mixing methanol with waste cooking oil to separate glycerin in high yield, and since the injected methanol is collected and reused, casting and casting using waste cooking oil showing low manufacturing cost and eco-friendly effect It is to provide a method for producing an easy release agent.
본 발명의 목적은 폐식용유를 가열하는 가열단계, 상기 가열단계를 통해 가열된 폐식용유에 메탄올과 가성소다로 이루어진 혼합물을 혼합하여 글리세린을 분리하는 글리세린분리단계 및 상기 글리세린분리단계를 통해 분리된 글리세린을 정제하는 정제단계로 이루어지는 것을 특징으로 하는 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법을 제공함에 의해 달성된다.An object of the present invention is a heating step of heating waste cooking oil, a glycerin separation step of mixing a mixture consisting of methanol and caustic soda with the waste cooking oil heated through the heating step to separate glycerin, and the glycerin separated through the glycerin separation step It is achieved by providing a method for manufacturing a mold release agent for casting and casting using waste cooking oil, characterized in that it consists of a refining step of refining.
본 발명의 바람직한 특징에 따르면, 상기 가열단계는 폐식용유를 50 내지 70℃의 온도로 가열하여 이루어지는 것으로 한다.According to a preferred feature of the present invention, the heating step is to be made by heating the waste cooking oil to a temperature of 50 to 70 ℃.
본 발명의 더 바람직한 특징에 따르면, 상기 글리세린분리단계는 폐식용유 100 중량부에 메탄올과 가성소다로 이루어진 혼합물 15 내지 25 중량부를 혼합하고 100 내지 200분 동안 혼합한 후에 40 내지 60분 동안 방치하여 이루어지는 것으로 한다.According to a more preferred feature of the present invention, the glycerin separation step is made by mixing 15 to 25 parts by weight of a mixture of methanol and caustic soda with 100 parts by weight of waste cooking oil, mixing for 100 to 200 minutes, and then leaving for 40 to 60 minutes do it as
본 발명의 더욱 바람직한 특징에 따르면, 상기 글리세린정제단계는 상기 글리세린분리단계를 통해 분리된 글리세린을 50 내지 200℃로 가열한 후에 분별증류하는 과정으로 이루어지는 것으로 한다.According to a more preferred feature of the present invention, the glycerin purification step is to be made of a process of fractional distillation after heating the glycerin separated through the glycerin separation step to 50 to 200 ℃.
본 발명에 따른 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법은 폐식용유에 메탄올을 혼합하여 글리세린을 분리함으로써 고수율로 글리세린을 분리할 수 있으며, 투입된 메탄올은 수거하여 재사용하기 때문에 제조비용이 낮고 친환경적인 효과를 나타낸다.According to the method of manufacturing mold release agent for casting and casting using waste cooking oil according to the present invention, glycerin can be separated in high yield by mixing methanol with waste cooking oil to separate glycerin, and since the injected methanol is collected and reused, manufacturing cost is low. It shows an eco-friendly effect.
도 1은 본 발명에 따른 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법을 나타낸 순서도이다.1 is a flow chart showing a method for manufacturing a mold release agent for casting and casting using waste cooking oil according to the present invention.
이하에는, 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.Hereinafter, a preferred embodiment of the present invention and the physical properties of each component will be described in detail, but this is to be explained in detail so that a person having ordinary knowledge in the art to which the present invention belongs can easily practice the invention, This is not meant to limit the technical spirit and scope of the present invention.
본 발명에 따른 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법은 폐식용유를 가열하는 가열단계(S101), 상기 가열단계(S101)를 통해 가열된 폐식용유에 메탄올과 가성소다로 이루어진 혼합물을 혼합하여 글리세린을 분리하는 글리세린분리단계(S103) 및 상기 글리세린분리단계(S103)를 통해 분리된 글리세린을 정제하는 정제단계(S105)로 이루어진다.The method for manufacturing a mold release agent for casting and casting using waste cooking oil according to the present invention includes a heating step (S101) of heating the waste cooking oil, mixing a mixture of methanol and caustic soda with the heated waste cooking oil through the heating step (S101) It consists of a glycerin separation step (S103) of separating glycerin and a purification step (S105) of purifying the glycerin separated through the glycerin separation step (S103).
상기 가열단계(S101)는 폐식용유를 가열하는 단계로, 반응탱크에 폐식용유를 공급됨에 따라 센서가 작동하며, 제1,2리미트 스위치가 온 접점되면 가열기가 가동하여 원료를 가열하는 장치에서 상기 컨트롤러는 원료의 온도를 50 내지 70℃를 유지하도록 가열기를 제어하는 과정을 통해 폐식용유를 가열하는 과정으로 이루어진다.The heating step (S101) is a step of heating the waste cooking oil, the sensor operates as the waste cooking oil is supplied to the reaction tank, and when the first and second limit switches are turned on, the heater is operated to heat the raw material. The controller consists of a process of heating the waste cooking oil through a process of controlling the heater to maintain the temperature of the raw material at 50 to 70 ° C.
더욱 상세하게는 본 발명에서 사용되는 폐식용유를 이용한 주조 및 주물용 이형제의 제조에 사용되는 장치는, 폐식용유를 공급하는 유지공급탱크, 폐식용유와 반응하여 바이오 디젤이 추출되도록 하는 반응액이 저장되는 반응액 탱크, 폐식용유와 반응액이 혼합 및 반응하여 바이오 디젤이 추출되는 반응탱크로 이루어진다.More specifically, the apparatus used in the production of casting and mold release agents for casting using waste cooking oil used in the present invention stores a maintenance supply tank for supplying waste cooking oil, and a reaction liquid for extracting biodiesel by reacting with waste cooking oil. It consists of a reaction liquid tank to be mixed and reacted with the waste cooking oil and a reaction tank in which biodiesel is extracted.
상기 유지공급탱크는 폐식용유가 저장 및 저장된 폐식용유를 반응탱크에 공급하는 것이며, 이를 위해 내부에 공간이 형성된 중공의 통구조이고 공급을 위한 배출부와 보충을 위한 주입부가 구비된다.The maintenance supply tank is to store waste cooking oil and supply the stored waste cooking oil to the reaction tank. To this end, it has a hollow tubular structure with a space formed therein, and is provided with a discharge part for supply and an injection part for replenishment.
상기 가열기는 전원을 공급받아 발열하는 전열선, 열전도매체(공기, 물 등)가 순환하는 발열기, 유류에의해 점화되어 발열하는 버너 등이 사용 가능하다. 가열기는 온도센서에 의해 감지되는 폐식용유를 근거로하여 폐식용유가 상기 온도 범위를 벗어난 경우에만 작동하도록 구성될 수도 있다.The heater may be a heating wire that generates heat by receiving power, a heater that circulates a heat conduction medium (air, water, etc.), a burner that generates heat by being ignited by oil, and the like. The heater may be configured to operate only when the waste cooking oil is out of the above temperature range based on the waste cooking oil detected by the temperature sensor.
상기 반응액 탱크는 메탄올과 가성소다가 적정량 혼합된 혼합물인 메독사이드가 저장 및 저장된 반응액을 공급하며, 이를 위하여 내부에 공간이 형성된 중공의 통구조이고 공급을 위한 배출부와 보충을 위한 주입부가 구비된다.The reaction liquid tank stores medoxide, which is a mixture of methanol and caustic soda in an appropriate amount, and supplies the stored reaction liquid. are provided
상기 반응탱크는 폐식용유와 반응액이 반응할 수 있는 공간을 제공하고, 상기 반응에 의해 추출되는 바이오 디젤과 글리세린을 분리하여 추출한다. 바이오 디젤과 글리세린은 비중이 다르기 때문에 글리세린은 침전되고 글리세린 위에 바이오 디젤이 부유하여 글리세린을 먼저 추출하고 바이오 디젤을 추출할 수 있다.The reaction tank provides a space in which the waste cooking oil and the reaction liquid can react, and separates and extracts biodiesel and glycerin extracted by the reaction. Since biodiesel and glycerin have different specific gravity, glycerin precipitates and biodiesel floats on top of glycerin, so that glycerin can be extracted first and then biodiesel can be extracted.
상기 글리세린분리단계(S103)는 상기 가열단계(S101)를 통해 가열된 폐식용유에 메탄올과 가성소다로 이루어진 혼합물을 혼합하여 글리세린을 분리하는 단계로, 폐식용유 100 중량부에 메탄올과 가성소다로 이루어진 혼합물 15 내지 25 중량부를 혼합하고 상기 가열기에 구비된 교반기의 작동을 개시하여 100 내지 200분 동안 혼합한 후에 40 내지 60분 동안 방치하는 과정으로 이루어진다.The glycerin separation step (S103) is a step of mixing a mixture of methanol and caustic soda with the waste cooking oil heated through the heating step (S101) to separate glycerin, consisting of methanol and caustic soda in 100 parts by weight of waste cooking oil It consists of mixing 15 to 25 parts by weight of the mixture, starting the operation of the stirrer provided in the heater, mixing for 100 to 200 minutes, and then leaving it for 40 to 60 minutes.
상기의 과정으로 이루어지는 글리세린분리단계(S103)를 거치면 폐식용유와 상기 혼합물이 골고루 혼합되어 폐식용유로부터 바이오디젤과 글리세린을 분리할 수 있다.After passing through the glycerin separation step (S103) consisting of the above process, the waste cooking oil and the mixture are evenly mixed to separate biodiesel and glycerin from the waste cooking oil.
이때, 상기 폐식용유와 상기 혼합물의 반응 효율을 높이기 위하여 반응탱크에도 유지공급탱크에 적용된 가열기가 적용되는데, 가열기는 폐식용유의 온도를 조절하는 한편 메탄올을 기화시키기 위하여 사용된다.At this time, in order to increase the reaction efficiency of the waste cooking oil and the mixture, a heater applied to the maintenance supply tank is applied to the reaction tank, and the heater is used to control the temperature of the waste cooking oil and vaporize methanol.
폐식용유와 혼합물을 교반함으로써 바이오디젤이 추출되므로 유지공급탱크, 반응액 탱크 및 반응탱크만으로 바이오 디젤을 제조할 수 있다. 유지공급탱크, 반응액 탱크 및 반응탱크는 액상의 폐식용유와 반응액이 흐를 수 있도록 서로 배관으로 연결되며, 펌프(P)에 의해 공급된다.Since biodiesel is extracted by stirring the waste cooking oil and the mixture, biodiesel can be produced only with the maintenance supply tank, the reaction liquid tank, and the reaction tank. The maintenance supply tank, the reaction liquid tank, and the reaction tank are connected to each other by pipes so that the liquid waste cooking oil and the reaction liquid flow, and are supplied by a pump P.
상기 정제단계(S105)는 상기 글리세린분리단계(S103)를 통해 분리된 글리세린을 정제하는 단계로, 상기 글리세린분리단계(S103)를 통해 분리된 글리세린을 50 내지 200℃로 가열한 후에 분별증류하는 과정으로 이루어지는데, 더욱 상세하게는 상기 글리세린분리단계(S103)를 통해 분리된 글리세린을 500 내지 200℃로 가열한 후에, 가열된 글리세린을 증류반응기에 공급하고 100 내지 300℃로 가열한 후에, 상기 증류반응기 하부에서 건 증기를 공급하고, 상기 증류반응기에서 글리세린을 증류하고, 증류된 글리세린을 상온까지 단계적으로 냉각하는 과정으로 이루어진다.The purification step (S105) is a step of purifying the glycerin separated through the glycerin separation step (S103). More specifically, after heating the glycerin separated through the glycerin separation step (S103) to 500 to 200 ° C., supplying the heated glycerin to a distillation reactor and heating it to 100 to 300 ° C., the distillation Dry steam is supplied from the bottom of the reactor, glycerin is distilled in the distillation reactor, and the distilled glycerin is gradually cooled to room temperature.
이때, 상기 정제단계(S105) 이전에는 산(acid)제거 공정을 더 포함할 수 있는데, 상기 글리세린분리단계(S103)를 통해 분리된 글리세린에는 글리세린의 분리방법에 따라 산을 사용하는 경우가 있는데, 이런 경우 분리된 글리세린에 지방산이 포함되어 있기 때문에 지방산을 중화하여 제거하는 과정을 진행하는 것이 바람직하다.At this time, an acid removal step may be further included before the purification step (S105). In some cases, an acid is used for the glycerin separated through the glycerin separation step (S103), depending on the glycerin separation method. In this case, since the separated glycerin contains fatty acids, it is preferable to neutralize and remove the fatty acids.
상게하게 설명하면, 글리세린 분리공정중 산을 사용하는 경우는 글레세린을 산(acid)과 혼합하며 반응시키는 단계, 상기 혼합 후 방치시키는 단계, 상기 혼합물을 분리조에 공급하는 단계, 분리조에서 조 글리세롤과 지방산을 분리하는 단계를 포함한다. 상기 산은 염산(HCl)을 사용할 수 있으며, 바람직하게는 30 내지 40 중량%의 염산을 사용할 수 있다.In detail, in the case of using an acid during the glycerin separation process, mixing and reacting glycerin with an acid, leaving the mixture to stand after the mixing, supplying the mixture to a separation tank, crude glycerol in the separation tank and separating fatty acids. The acid may be hydrochloric acid (HCl), preferably 30 to 40% by weight of hydrochloric acid.
또한 상기 산(acid)제거 공정은 염기(alkali)를 혼합하여 10 내지 90℃에서 반응하는 단계, 상기 반응 후 방치하는 단계, 중화반응으로 생성된 수분을 증발시키는 단계를 포함한다. 상기 염기는 수산화나트륨(NaCl)을 사용할 수 있으며, 바람직하게는 50 내지 60%중량 수산화나트륨을 사용할 수 있다.In addition, the acid removal process includes mixing a base (alkali) and reacting at 10 to 90 ° C., leaving the reaction after the reaction, and evaporating moisture generated by the neutralization reaction. As the base, sodium hydroxide (NaCl) may be used, and preferably 50 to 60% by weight sodium hydroxide may be used.
따라서, 본 발명에 따른 폐식용유를 이용한 바이오디젤의 제조방법은 폐식용유에 메탄올을 혼합하여 글리세린을 분리함으로써 고순도의 바이오디젤을 제공하며, 투입된 메탄올은 수거하여 재사용하기 때문에 제조비용이 낮고 친환경적이다.Therefore, the method for producing biodiesel using waste cooking oil according to the present invention provides high-purity biodiesel by mixing methanol with waste cooking oil to separate glycerin, and since the input methanol is collected and reused, the manufacturing cost is low and environmentally friendly.
S101 ; 가열단계
S103 ; 글리세린분리단계
S105 ; 정제단계S101; heating step
S103; Glycerin Separation Step
S105; purification step
Claims (4)
상기 가열단계를 통해 가열된 폐식용유에 메탄올과 가성소다로 이루어진 혼합물을 혼합하여 글리세린을 분리하는 글리세린분리단계; 및
상기 글리세린분리단계를 통해 분리된 글리세린을 정제하는 정제단계;로 이루어지는 것을 특징으로 하는 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법.
A heating step of heating the waste cooking oil;
A glycerin separation step of separating glycerin by mixing a mixture of methanol and caustic soda with the waste cooking oil heated through the heating step; and
A purification step of purifying the glycerin separated through the glycerin separation step; a method for producing a mold release agent for casting and casting using waste cooking oil, characterized in that consisting of.
상기 가열단계는 폐식용유를 50 내지 70℃의 온도로 가열하여 이루어지는 것을 특징으로 하는 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법.
The method of claim 1,
The heating step is a method for producing a mold release agent for casting and casting using waste cooking oil, characterized in that made by heating the waste cooking oil to a temperature of 50 to 70 ° C.
상기 글리세린분리단계는 폐식용유 100 중량부에 메탄올과 가성소다로 이루어진 혼합물 15 내지 25 중량부를 혼합하고 100 내지 200분 동안 혼합한 후에 40 내지 60분 동안 방치하여 이루어지는 것을 특징으로 하는 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법.
The method of claim 1,
In the glycerin separation step, 15 to 25 parts by weight of a mixture of methanol and caustic soda is mixed with 100 parts by weight of waste cooking oil, mixed for 100 to 200 minutes, and then left for 40 to 60 minutes. Casting using waste cooking oil, characterized in that and a method for producing a mold release agent for casting.
상기 글리세린정제단계는 상기 글리세린분리단계를 통해 분리된 글리세린을50 내지 200℃로 가열한 후에 분별증류하는 과정으로 이루어지는 것을 특징으로 하는 폐식용유를 이용한 주조 및 주물용 이형제의 제조방법.The method of claim 1,
The glycerin purification step is a method for producing a mold release agent for casting and casting using waste cooking oil, characterized in that consisting of a process of fractional distillation after heating the glycerin separated through the glycerin separation step at 50 to 200 ° C.
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| KR100779732B1 (en) | 2006-10-31 | 2007-11-29 | 전남대학교산학협력단 | A method for two-stage transesterification of rapeseed oil |
| KR101134294B1 (en) | 2010-02-22 | 2012-04-13 | 한국에너지기술연구원 | Oil extraction and biodiesel production from microalgae |
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| KR100779732B1 (en) | 2006-10-31 | 2007-11-29 | 전남대학교산학협력단 | A method for two-stage transesterification of rapeseed oil |
| KR101134294B1 (en) | 2010-02-22 | 2012-04-13 | 한국에너지기술연구원 | Oil extraction and biodiesel production from microalgae |
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