KR101134154B1 - Circulation flow reactor for collecting the carbon fiber from closed CFRP and its Method - Google Patents
Circulation flow reactor for collecting the carbon fiber from closed CFRP and its Method Download PDFInfo
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- KR101134154B1 KR101134154B1 KR1020090104497A KR20090104497A KR101134154B1 KR 101134154 B1 KR101134154 B1 KR 101134154B1 KR 1020090104497 A KR1020090104497 A KR 1020090104497A KR 20090104497 A KR20090104497 A KR 20090104497A KR 101134154 B1 KR101134154 B1 KR 101134154B1
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- 239000004918 carbon fiber reinforced polymer Substances 0.000 title claims abstract description 58
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 40
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 40
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 56
- 239000002699 waste material Substances 0.000 claims abstract description 40
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000003822 epoxy resin Substances 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 12
- 238000005336 cracking Methods 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 claims description 13
- 239000004809 Teflon Substances 0.000 claims description 7
- 229920006362 Teflon® Polymers 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000002835 absorbance Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 230000029087 digestion Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000012744 reinforcing agent Substances 0.000 abstract description 8
- 239000003365 glass fiber Substances 0.000 abstract description 6
- 229920000742 Cotton Polymers 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 5
- 239000011151 fibre-reinforced plastic Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- 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
- B01D53/002—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 condensation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/12—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of plastics, e.g. rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
본 발명은 폐 CFRP로부터 탄소섬유를 회수하는 순환흐름 반응기 및 그 방법에 관한 것으로, 상하 분리형 구조로 이루어지되, 타원형의 장공이 형성된 다수의 지지막으로 구성된 지지대가 내부에 안착되는 분해조와, 상기 분해조의 외벽에 설치된 가열장치와, 상기 분해조에 공급하는 질산 수용액을 저장하는 저장조와, 상기 저장조에 저장된 질산수용액을 저장조로 순환시키는 순환 펌프를 포함하여 이루어지는 것을 특징으로 한다.The present invention relates to a circulating flow reactor for recovering carbon fibers from waste CFRP, and a method thereof, wherein the support consists of a plurality of support membranes having an elliptical long hole formed therein. A heating device provided on the outer wall of the tank, a storage tank for storing the nitric acid solution supplied to the decomposition tank, and a circulation pump for circulating the nitric acid solution stored in the storage tank to the storage tank.
본 발명에 따르면, 보강제(유리섬유 또는 탄소섬유)를 솜처럼 엉킨 형태로 회수하던 기존 교반형 분해반응기의 단점을 보완하여 폐 CFRP를 지지대에 장착하고 순환흐름반응기를 사용하여 에폭시 수지로 제조된 폐 CFRP로부터 탄소섬유를 원형 그대로 회수하여 재사용할 수 있다. According to the present invention, by supplementing the disadvantages of the existing agitated cracking reactor, which recovers the reinforcing agent (glass fiber or carbon fiber) in the form of tangled cotton, the waste CFRP is mounted on a support and the waste is made of epoxy resin using a circulating flow reactor. Carbon fiber can be recovered from CFRP as it is and reused.
폐 CFRP, 탄소섬유 회수, 순환흐름 반응기 Waste CFRP, Carbon Fiber Recovery, Circulation Flow Reactor
Description
본 발명은 탄소섬유 회수용 순환흐름 반응기 및 그 방법에 관한 것으로, 특히 보강제(유리섬유 또는 탄소섬유)를 솜처럼 엉킨 형태로 회수하던 기존의 교반형 분해반응기의 단점을 보완하기 위해 폐 CFRP(carbon fiber reinforced plastic)를 지지대에 장착하고 교반기 대신 순환흐름을 이용하여 에폭시 수지를 분해시켜 탄소섬유를 원형 그대로 회수하는, 폐 CFRP로부터 탄소섬유를 회수하는 순환흐름 반응기 및 그 방법에 관한 것이다. The present invention relates to a circulating flow reactor for recovering carbon fibers and a method thereof, and in particular, to compensate for the disadvantages of the conventional agitated cracking reactor in which a reinforcing agent (glass fiber or carbon fiber) is recovered in a tangled form, such as waste CFRP (carbon The present invention relates to a circulating flow reactor for recovering carbon fibers from waste CFRP, and a method for recovering carbon fibers intact by disassembling an epoxy resin using a circulating flow instead of a stirrer.
고분자 수지의 기계적 물성을 개선하기 위한 방편으로, 고분자 수지에 각종 섬유상의 보강재를 첨가하여 제조한 복합소재를 FRP(fiber reinforced plastic)라 한다. 이들 중 보강제로 탄소섬유를 사용한 복합소재를 CFRP(carbon fiber reinforced plastic)라 한다. As a means for improving the mechanical properties of the polymer resin, a composite material prepared by adding various fibrous reinforcement to the polymer resin is called FRP (fiber reinforced plastic). Among them, a composite material using carbon fiber as a reinforcing agent is called CFRP (carbon fiber reinforced plastic).
CFRP를 비롯한 각종 FRP 복합소재는 기계적 물성이 우수하여 여러 산업분야에 다양하게 활용되고 있으나 사용 후 배출되는 폐기물의 처리가 용이하지 않아 환경적인 측면에서 많은 문제점을 일으키고 있다.Various FRP composite materials including CFRP are used in various industrial fields due to their excellent mechanical properties, but they are not easy to dispose of wastes after use, causing many environmental problems.
폐 FRP의 처리 방법으로는 매립, 분쇄 후 첨가제로 사용, 소각, 열분해 등의 공정들이 제시되고 있으나, 수거 및 처리에 많은 비용이 소요되기 때문에 여전히 다양한 연구가 진행되고 있는 실정이다. Waste FRP has been proposed as a method of landfilling, pulverization, incineration, pyrolysis, etc., but various researches are still being conducted because the collection and processing are expensive.
여기서, 에폭시 수지를 사용하여 제조된 폐 FRP는 수지를 고온의 질산으로 용해시켜 보강재로 사용된 유리섬유나 탄소섬유를 회수하는 공정이 소개되어 있으나, 현재까지 소개된 회수공정에서는 에폭시 수지의 분해과정에서 가해진 교반 등으로 인하여 보강제들이 서로 엉긴 형태로 회수되기 때문에, 회수된 보강제의 대부분이 분쇄 또는 절단의 과정을 거쳐 폐기되거나 저급의 보강재로만 사용되는 문제점이 있다. Here, waste FRP manufactured using epoxy resin is introduced to recover glass fiber or carbon fiber used as reinforcing material by dissolving the resin with high temperature nitric acid. Since the reinforcing agents are recovered in an entangled form due to the stirring, etc., most of the recovered reinforcing agents are disposed of through the grinding or cutting process or used only as low-grade reinforcing materials.
본 발명은 종래 기술의 문제점을 해결하기 위해 제안된 것으로, 보강제(유리섬유 또는 탄소섬유)를 솜처럼 엉킨 형태로 회수하던 기존의 교반형 분해반응기의 단점을 보완하기 위해 폐 CFRP(carbon fiber reinforced plastic)를 지지대에 장착하고 교반기 대신 순환흐름을 이용하여 에폭시 수지를 분해시켜 탄소섬유를 원형 그대로 회수하는 폐 CFRP로부터 탄소섬유를 회수하는 순환흐름 반응기 및 그 방법 을 제공하는데 목적이 있다. The present invention has been proposed to solve the problems of the prior art, in order to compensate for the shortcomings of the conventional agitated cracking reactor that recovers the reinforcing agent (glass fiber or carbon fiber) in the form of tangled cotton. It is an object of the present invention to provide a circulating flow reactor and a method for recovering carbon fibers from waste CFRP, in which carbon fibers are recovered in their original form by disassembling the epoxy resin by using a circulation support instead of a stirrer.
본 발명의 목적을 달성하기 위해, 본 발명에 따른 폐 CFRP로부터 탄소섬유를 회수하는 순환흐름 반응기는, 상하 분리형 구조로 이루어지되, 타원형의 장공이 형성된 다수의 지지막으로 구성된 지지대가 내부에 안착되는 분해조와, 상기 분해조의 외벽에 설치된 가열장치와, 상기 분해조에 공급하는 질산 수용액을 저장하는 저장조와, 상기 저장조에 저장된 질산수용액을 저장조로 순환시키는 순환 펌프를 포함하여 이루어지는 것을 특징으로 한다.In order to achieve the object of the present invention, the circulating flow reactor for recovering carbon fiber from the waste CFRP according to the present invention, the support structure consisting of a plurality of support membranes formed of an elliptical long hole, but is built in a vertically separated structure And a decomposition tank, a heating device provided on the outer wall of the decomposition tank, a storage tank for storing the nitric acid aqueous solution supplied to the decomposition tank, and a circulation pump for circulating the nitric acid solution stored in the storage tank to the storage tank.
여기서, 상기 가열장치는 온도조절기에 의해 온도조절되는 것을 특징으로 한다.Here, the heating device is characterized in that the temperature is controlled by the temperature controller.
또한, 상기 가열장치는 밴드형 가열장치인 것을 특징으로 한다.In addition, the heating device is characterized in that the band-type heating device.
그리고, 상기 분해조는 입구와 출구에 유량조절밸브가 더 설치되는 것을 특징으로 한다.And, the decomposition tank is characterized in that the flow rate control valve is further installed at the inlet and outlet.
한편, 상기 분해조는 상부에 분해조 내부의 산소를 제거하기 위해 질소 가스를 투입하는 질소 유입구와, 상기 분해조 내부의 온도를 측정하는 온도계와, 상기 분해조에서 발생된 기체 성분을 냉각시켜 응축하는 응축기와, 질산 용액 배출구가 설치되고, 하부에는 질산 용액 유입구가 설치된 것을 특징으로 한다.On the other hand, the decomposition tank is a nitrogen inlet for injecting nitrogen gas to remove the oxygen in the decomposition tank in the upper portion, a thermometer for measuring the temperature inside the decomposition tank, and to cool and condense the gas components generated in the decomposition tank The condenser, the nitric acid solution outlet is installed, the lower portion is characterized in that the nitric acid solution inlet is installed.
그리고, 상기 지지대는 하부에 질산 수용액 유입용 구멍이 형성되고, 상부는 개방된 형태로 구성되고, 지지대 내측에는 지지막이 설치되는 것을 특징으로 한다.And, the support is formed with a hole for inlet nitric acid solution in the lower portion, the upper portion is configured in an open form, the support membrane is characterized in that the support membrane is installed.
또한, 상기 지지막은 테플론판으로 이루어지는 것을 특징으로 되는 것을 특징으로 한다.In addition, the support membrane is characterized in that consisting of Teflon plate.
본 발명의 다른 목적을 달성하기 위해, 본 발명에 따른 폐 CFRP로부터 탄소섬유를 회수하는 방법에 있어서, (a) 분해용 폐 CFRP을 지지대 장착하여 순환흐름 반응기의 분해조 속에 넣고, 분해조 내부로 질소 가스를 일정 시간 동안 흘려 분해조 내부의 산소를 완전히 제거하는 단계; (b) 저장조에 질산 수용액을 채운 후, 순환 펌프를 가동하여 질산 수용액을 순환시키는 단계; (c) 상기 순환 펌프를 작동시켜 질산 수용액의 순환시키면서, 가열장치와 온도조절기를 사용하여 분해조의 온도를 적정 온도까지 가열하는 단계; (d) 상기 가열장치에 의해 발생된 기체 성분들을 분해조 상부에 설치된 응축기를 이용하여 응축 가능한 성분들을 분해조로 되돌리고, 일정 시간 간격으로 분해조의 배출액을 분석하여 순환액의 흡광도를 측정하는 방법으로 에폭시 수지의 분해 정도를 측정하는 단계; 및 (e) 소정 시간 경과후, 수지 완전히 분해되면, 순환 펌프를 중지시키고, 폐 CFRP 지지대를 분리하여 탄소섬유를 원형 그대로 회수하는 단계를 포함한다. In order to achieve another object of the present invention, in the method for recovering the carbon fiber from the waste CFRP according to the present invention, (a) a waste CFRP for the support is mounted in the decomposition tank of the circulation flow reactor, into the decomposition tank, Flowing nitrogen gas for a predetermined time to completely remove oxygen in the decomposition tank; (b) after filling the reservoir with the aqueous nitric acid solution, operating a circulation pump to circulate the aqueous nitric acid solution; (c) operating the circulation pump to circulate the aqueous nitric acid solution, and heating the temperature of the decomposition tank to an appropriate temperature using a heating device and a temperature controller; (d) returning the condensable components to the decomposition tank by using the condenser installed at the upper part of the decomposition tank in the gas components generated by the heating device, and analyzing the discharge liquid of the decomposition tank at regular intervals to measure the absorbance of the circulating fluid. Measuring the degree of decomposition of the epoxy resin; And (e) after the predetermined time has elapsed, when the resin is completely decomposed, stopping the circulation pump and separating the waste CFRP support to recover the carbon fibers in their original form.
이상에서 설명한 바와 같이, 본 발명에 의하면, 보강제(유리섬유 또는 탄소섬유)를 솜처럼 엉킨 형태로 회수하던 기존의 교반형 분해반응기의 단점을 보완하기 위해 폐 CFRP를 지지대에 장착하고 순환흐름을 이용하여 에폭시 수지를 분해시 켜 탄소섬유를 원형 그대로 회수할 수 있는 장점이 있다.As described above, according to the present invention, in order to compensate for the shortcomings of the conventional agitated cracking reactor in which the reinforcing agent (glass fiber or carbon fiber) is recovered in the form of tangled cotton, the waste CFRP is mounted on the support and the circulation flow is used. By decomposing the epoxy resin, there is an advantage in that the carbon fiber can be recovered as it is.
본 발명에 따른 순환흐름 반응기를 사용하면 CFRP(carbon fiber reinforced plastic)에 사용된 탄소섬유는 고가의 제품이기 때문에, 에폭시 수지로 제조된 폐 CFRP로부터 탄소섬유를 원형 그대로 회수하여 탄소섬유를 재사용할 수 있게 되므로 환경오염 방지 및 자원의 낭비를 줄일 수 있어 비용을 절감할 수 있는 장점이 있다. When the circulating flow reactor according to the present invention is used, carbon fiber used in carbon fiber reinforced plastic (CFRP) is an expensive product, and carbon fibers can be recovered as it is from the waste CFRP made of epoxy resin as it is and reused. Therefore, there is an advantage of reducing costs by preventing environmental pollution and reducing waste of resources.
이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세하게 설명한다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 폐 CFRP로부터 탄소섬유 회수용 순환흐름 반응기의 구성도이다. 1 is a block diagram of a circulating flow reactor for carbon fiber recovery from waste CFRP according to the present invention.
본 발명은 CFRP(carbon fiber reinforced plastic)에 사용된 탄소섬유는 고가의 제품이기 때문에 폐 CFRP로부터 탄소섬유를 원형 그대로 회수하여 재사용할 수 있도록, 순환흐름반응기를 구성하고 회수 방법을 제공한다.The present invention is a carbon fiber used in the carbon fiber reinforced plastic (CFRP) is an expensive product, so that it is possible to recover and reuse the carbon fiber intact from the waste CFRP as it is, to configure a circulating flow reactor and provide a recovery method.
보다 구체적으로는 보강제(유리섬유 또는 탄소섬유)를 솜처럼 엉킨 형태로 회수하던 기존의 교반형 분해반응기의 단점을 보완하기 위해, 폐 CFRP를 지지대에 장착하고 순환흐름을 이용하여 에폭시 수지를 분해시켜 탄소섬유를 원형 그대로 회수할 수 있다. More specifically, in order to make up for the disadvantages of the existing agitated decomposition reactor in which the reinforcing agent (glass fiber or carbon fiber) was recovered in the form of tangled cotton, the waste CFRP was mounted on the support and the circulating flow was used to decompose the epoxy resin. Carbon fiber can be recovered as it is.
도 1을 참조하면, 순환흐름 반응기는 분해조(1)와 그 주변장치로 구성된다. Referring to Figure 1, the circulation flow reactor is composed of a decomposition tank 1 and its peripheral devices.
여기서, 순환흐름 반응기의 분해조(1)는 상하 분리형 사각형 구조로 이루어져 있으며, 질산 수용액과 폐 CFRP와의 효과적인 접촉을 위해 큰 구멍들을 가진 내산성이 강한 테플론판으로 된 다수의 지지막으로 구성되고, 폐 CFRP를 테플론판으로 제작된 지지대에 장착하여 내부에 안착 설치한다. Here, the decomposition tank 1 of the circulating flow reactor is composed of a vertically divided rectangular structure and consists of a plurality of support membranes made of acid-resistant Teflon plate with large holes for effective contact with the aqueous nitric acid solution and the waste CFRP, CFRP is mounted on the support made of Teflon plate and installed inside.
그리고, 가열장치(15)의 온도가 적정온도로 가열되도록 조절하는 온도 조절기(20)가 구비된다.Then, the
한편, 순환흐름 반응기의 주변장치는 폐 CFRP의 에폭시 수지를 분해하기 위해 질산 수용액의 순환이 시작되면, 온도 조절기(20)에 의해 설정된 적정온도에 따라 분해조(1)의 온도를 가열시키는 분해조(1)의 외부에 설치되는 밴드형 가열장치(15)와, 분해조(1)의 입구와 출구에 각각 설치되고, 질산 수용액의 유량을 조절하는 유량 조절 밸브(30,31)와, 분해조(1)의 질산 수용액 배출구를 통해 질산 수용액을 저장하는 저장조(32) 및 상기 저장조(32)에 저장된 질산 수용액을 질산 수용액 유입구를 통해 상기 분해조(1)로 순환시키고, 일부는 저장조(32)로 순환시키는 순환 펌프(33)로 구성된다.On the other hand, the peripheral device of the circulating flow reactor is a decomposition tank for heating the temperature of the decomposition tank 1 in accordance with the appropriate temperature set by the
여기서, 순환흐름 반응기의 분해조(1)는, 상부에는 분해조 내부의 산소를 제거하기 위해 질소 가스를 투입하는 질소 유입구(12)가 형성되고, 분해조(1) 내부의 온도를 측정하는 온도계(14)가 설치되며, 온도조절기(20) 및 가열장치(15)에 의해 분해조(1)의 온도를 적정온도로 가열시 발생된 기체 성분들 중 응축 가능한 성분들을 응축시켜서 분해조(1)로 되돌리는 응축기(11) 및 질산 수용액 유출구(19)가 설 치되고, 분해조(1) 하부에는 질산 수용액 유입구(18)가 설치된다.Here, in the decomposition tank 1 of the circulation flow reactor, a nitrogen inlet 12 through which nitrogen gas is introduced to remove oxygen in the decomposition tank is formed at the upper portion, and a thermometer measuring the temperature inside the decomposition tank 1. (14) is installed, by the
즉, 순환흐름 반응기의 분해조(1)는 상하 분리형 사각형 구조로 이루어져, 상부에는 응축기(11), 온도계(14), 질소 유입구(12) 및 질산 수용액 유출구(19)가 설치되어 있고, 하부에는 질산 수용액 유입구(18)가 설치되어 있다. That is, the decomposition tank 1 of the circulating flow reactor has a vertically divided square structure, and a
그리고, 폐 CFRP는 테플론으로 제작된 CFRP 지지대(10)에 안치되어 분해조(1) 내부에 위치되게 된다. 순환흐름 반응기의 분해조(1)의 외부에는 밴드형 가열장치(15)를 설치하여 분해 온도에 적합하게 온도조절이 되도록 적정온도를 우지하게 한다.Then, the waste CFRP is placed in the
또한, 순환흐름 반응기의 주변장치는 순환하는 질산 수용액을 저장하는 저장조(32)와, 상기 저장조(32)에 저장된 질산 수용액을 순환시키는 순환 펌프(33)와, 분해조(1)의 외부에 설치되는 밴드형 가열장치(15)와, 분해조(1)의 온도를 적절하게 가열 유지시키는 온도 조절기(20)로 이루어 진다. In addition, the peripheral device of the circulating flow reactor is installed in the
도 2는 CFRP 지지대(10)를 구체적으로 나타낸 도면이다. 2 is a view showing the
여기서, CFRP 지지대(10)는 내산성이 강한 테플론 소재로 제작되고, 도 2에 도시된 바와 같이 상하 분리형 사각형 구조를 갖는다. CFRP 지지대(10)는 하부에 질산 수용액 유입용 구멍들이 있고, 상부는 개방된 형태로 이루어져 있다. 상기 CFRP 지지대(10)의 내측에는 일정 간격으로 CFRP 지지막(17)이 설치되고, 폐 CFRP는 지지막(17) 사이사이의 공간부(13)에 안착 설치된다. 이때, CFRP 지지막(17)은 질산 수용액이 폐 CFRP와의 효과적인 접촉을 위해 타원형 장공이 형성된 테플론판 으로 이루어지고, CFRP 지지대(10) 하부의 구멍들을 통해 유입된 질산 수용액이 상승하면서 폐 CFRP와 접촉하게 구성되어 있다. Here, the
도 4는 본 발명에 따른 순환흐름 반응기를 사용하여 폐 CFRP로부터 탄소섬유를 회수하는 방법을 설명한 순서도이다. Figure 4 is a flow chart illustrating a method for recovering carbon fibers from waste CFRP using a circulating flow reactor according to the present invention.
순환흐름 반응기를 사용하여 폐 CFRP로부터 탄소섬유 회수공정은 다음과 같이 진행된다. The carbon fiber recovery process from waste CFRP using a circulating flow reactor proceeds as follows.
먼저, 분해용 폐 CFRP를 CFRP 지지대(10)의 공간부(13)에 안착하여 순환흐름 반응기의 분해조(1) 속에 넣고, 분해조(1) 내부로 질소 가스를 20분간 흘려 분해조(1) 내부의 산소를 완전히 제거한다(S10). First, the waste CFRP for decomposition is seated in the
그 후, 저장조(32)에 농도 12 mol/ℓ의 질산 수용액을 채운 후, 순환 펌프(33)를 가동하여 질산 수용액을 순환시킨다(S11). Thereafter, the nitric acid aqueous solution having a concentration of 12 mol / L is filled in the
그리고, 분해조(1)에서의 질산 수용액 상승속도를 분당 약 30cm가 되도록 조절하고, 순환 펌프(33)를 작동시켜 질산 수용액을 순환시키면서, 가열장치(15)와 온도조절기(20)를 사용하여 분해조(1)의 온도를 90℃까지 가열한다(S12). Then, the rate of increase of the nitric acid aqueous solution in the decomposition tank 1 is adjusted to be about 30 cm per minute, and the
이때, 발생된 기체 성분들은 분해조(1) 상부에 설치된 응축기(11)를 이용하여 응축 가능한 성분들을 분해조로 되돌리고, 일정 시간 간격으로 분해조(1)의 배출액을 분석하여 순환액의 흡광도를 측정하는 방법으로 에폭시 수지의 분해 정도를 측정한다(S14). At this time, the generated gas components return the condensable components to the decomposition tank by using the
5시간 정도 경과한 후, 도 3에 도시된 바와 같이, 수지가 완전히 분해되어 제거되면, 순환 펌프(33)를 중지시키고, CFRP 지지대(10)를 분리하여 원형 그대로 분리된 탄소섬유를 회수한다(S15).After about 5 hours, as shown in FIG. 3, when the resin is completely decomposed and removed, the
이상에서 설명한 바와 같이, 본 발명의 바람직한 실시예를 참조하여 설명하였지만, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진자가 하기의 특허청구범위에 기재된 본 발명의 기술적 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 또는 변형하여 실시할 수 있다.As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art without departing from the spirit and scope of the present invention described in the claims In the present invention can be carried out by various modifications or variations.
도 1은 본 발명에 따른 폐 CFRP(carbon fiber reinforced plastic)로부터의 탄소섬유를 회수용 순환흐름 반응기의 구성도이고, 1 is a block diagram of a circulating flow reactor for recovering carbon fibers from waste carbon fiber reinforced plastic (CFRP) according to the present invention,
도 2는 CFRP 지지대의 사시도이고, 2 is a perspective view of a CFRP support,
도 3은 탄소섬유가 원형대로 회수된 상태의 사진이고, 3 is a photograph of a state in which carbon fibers are recovered in a circular shape,
도 4는 본 발명에 따른 순환흐름 반응기를 사용하여 폐 CFRP로부터 탄소섬유를 회수하는 방법을 설명한 순서도이다. Figure 4 is a flow chart illustrating a method for recovering carbon fibers from waste CFRP using a circulating flow reactor according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
10: CFRP 지지대 11: 응축기10: CFRP support 11: condenser
12: 질소 유입구 13: 공간부12: nitrogen inlet 13: space
14: 온도계 15: 가열장치14: thermometer 15: heating device
17: 공간부 20: 온도 조절기17: space 20: temperature controller
30,31: 유량조절밸브 32: 저장조 30, 31: flow control valve 32: reservoir
33: 순환펌프33: circulation pump
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160103579A (en) | 2015-02-24 | 2016-09-02 | 재단법인 한국탄소융합기술원 | Apparatus for cutting recycled carbon fiber fabric |
| KR102025598B1 (en) | 2018-04-24 | 2019-10-01 | 재단법인 한국탄소융합기술원 | Apparatus for recycling carbon fiber reinforced composite |
| KR102522860B1 (en) | 2022-12-02 | 2023-04-18 | 주식회사 카텍에이치 | Waste carbon fiber composite material separation device and method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013180323A1 (en) * | 2012-05-31 | 2013-12-05 | 한국철도기술연구원 | Continuous circulation flow reactor for collecting carbon fiber of waste cfrp, and method therefor |
| KR101745063B1 (en) | 2014-12-05 | 2017-06-09 | 현대자동차주식회사 | A precess for recycling the composite container for a high pressure gas |
| CN108699279A (en) * | 2016-03-08 | 2018-10-23 | 日立化成株式会社 | Organic material removing device |
| US20180371205A1 (en) * | 2016-03-08 | 2018-12-27 | Hitachi Chemical Company, Ltd. | Organic material removing method and method of producing recycled material |
| CN116635465A (en) * | 2020-12-23 | 2023-08-22 | 株式会社未来化成 | Method for producing regenerated reinforcing fiber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001174590A (en) | 1999-12-15 | 2001-06-29 | Toshiba Corp | Treating method for radioactive waste |
| KR100386771B1 (en) * | 2001-02-08 | 2003-06-09 | 김시영 | Method recyclable for worthless frp |
| JP2004002580A (en) | 2002-06-03 | 2004-01-08 | Japan Science & Technology Corp | Method for recycling frp by dissolution of plastic material |
-
2009
- 2009-10-30 KR KR1020090104497A patent/KR101134154B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001174590A (en) | 1999-12-15 | 2001-06-29 | Toshiba Corp | Treating method for radioactive waste |
| KR100386771B1 (en) * | 2001-02-08 | 2003-06-09 | 김시영 | Method recyclable for worthless frp |
| JP2004002580A (en) | 2002-06-03 | 2004-01-08 | Japan Science & Technology Corp | Method for recycling frp by dissolution of plastic material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160103579A (en) | 2015-02-24 | 2016-09-02 | 재단법인 한국탄소융합기술원 | Apparatus for cutting recycled carbon fiber fabric |
| KR102025598B1 (en) | 2018-04-24 | 2019-10-01 | 재단법인 한국탄소융합기술원 | Apparatus for recycling carbon fiber reinforced composite |
| KR102522860B1 (en) | 2022-12-02 | 2023-04-18 | 주식회사 카텍에이치 | Waste carbon fiber composite material separation device and method |
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| KR20110047750A (en) | 2011-05-09 |
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