KR20080064693A - Process for the preparation of hydrogen gas - Google Patents
Process for the preparation of hydrogen gas Download PDFInfo
- Publication number
- KR20080064693A KR20080064693A KR1020070003153A KR20070003153A KR20080064693A KR 20080064693 A KR20080064693 A KR 20080064693A KR 1020070003153 A KR1020070003153 A KR 1020070003153A KR 20070003153 A KR20070003153 A KR 20070003153A KR 20080064693 A KR20080064693 A KR 20080064693A
- Authority
- KR
- South Korea
- Prior art keywords
- aluminum
- hydrogen gas
- waste
- dross
- aluminum dross
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/047—Decomposition of ammonia
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
본 발명은 산업 폐기물 중에서 알루미늄을 용해시 발생되는 알루미늄 드로스에 관한 것으로서, 더욱 상세하게는 알루미늄 드로스를 수소가스 연료로 제조할 수 있는 방법에 관한 것이다.The present invention relates to aluminum dross generated when dissolving aluminum in industrial waste, and more particularly, to a method for producing aluminum dross as a hydrogen gas fuel.
통상적으로, 알루미늄은 산화가 잘되는 금속이기 때문에 알루미늄을 용해하는 경우에는 항상 알루미늄 드로스가 발생하게 된다. 상기 알루미늄 드로스는 용해 후 주조할 때 용해로에서 걷어내고, 일부는 알루미늄 용탕을 주형에 부을 때 용해로 또는 도가니에 남게되며, 용탕을 주조하는 도중에서 용탕 유로(runner) 등에서 발생된다.Typically, aluminum is a metal that is well oxidized, so aluminum dross always occurs when aluminum is dissolved. The aluminum dross is removed from the melting furnace when casting after melting, and part of the aluminum dross is left in the melting furnace or crucible when the aluminum molten metal is poured into the mold, and is generated in a molten runner during the casting of the molten metal.
이와 같은 주조과정에서 최종적으로 발생되는 폐드로스는 대부분이 알루미늄 산화물이며, 여기에 10∼30％의 금속 알루미늄과 10％ 이내의 염 및 원래 알루미늄 스크랩에 존재했던 알루미늄, 규소, 철 등의 불순물이 혼합되어 있는 경우가 많다.Most of the waste dross generated in the casting process is aluminum oxide, and 10-30% metallic aluminum, salts within 10%, and impurities such as aluminum, silicon, iron, etc. originally present in aluminum scrap are mixed. There are many cases.
상기한 바와 같은 알루미늄 폐드로스를 처리하는 종래의 방법으로는, 알루미늄 용해업체에서 알루미늄 드로스를 가열하여 1차 또는 2차로 용해함으로써 드로스 중의 알루미늄 금속을 회수하고 폐기해야 할 드로스의 양을 줄이며, 이때 발생된 폐드로스는 자체적으로 또는 위탁 처리하여 매립하는 것이 일반적인 방법이다.In the conventional method of treating aluminum waste dross as described above, the aluminum melter is heated and melted first or second to reduce aluminum metal in the dross and reduce the amount of dross to be discarded. In this case, the generated waste dross is buried by itself or by consignment treatment.
그러나 위와 같은 방법대로 알루미늄 드로스를 처리할 경우에는 매립지 확보에 따른 비용이나 폐기물 처리업자에게 위탁하는데 따른 폐드로스의 과다한 처리비용이 소요되고, 또한 매립된 알루미늄 폐드로스가 주위의 토양을 황폐화시켜 자연환경을 훼손시키는 등의 많은 문제점이 대두되어 왔다.However, when the aluminum dross is treated according to the above method, the cost of securing landfills or excessive disposal of waste dross to be entrusted to a waste disposal company is required, and the embedded aluminum waste dross is used to deteriorate the surrounding soil. Many problems, such as damaging the environment, have emerged.
전술한 점들을 참조할 때, 일반적인 알루미늄 폐드로스 처리방법은 극심한 환경오염과 자원낭비로 인해 더 이상 실용화될 수 없어, 보다 직접적이고 효율적인 처리방법이 절실히 요구되고 있다.Referring to the above points, the general aluminum waste dross treatment method can no longer be practically used due to extreme environmental pollution and waste of resources, and thus a more direct and efficient treatment method is urgently needed.
전술한 바와 같은 요구를 만족시키기 위해 본 발명은 산업 폐기물인 알루미늄 폐드로스를 재활용하여 환경오염을 방지하고 자원낭비를 막을 수 있는 알루미늄 드로스를 이용한 수소가스의 제조방법을 제공한다.In order to satisfy the requirements as described above, the present invention provides a method for producing hydrogen gas using aluminum dross to prevent environmental pollution and to prevent waste of resources by recycling aluminum waste dross which is industrial waste.
또한 본 발명은 알루미늄을 원료로 제품을 생산하는 산업체에서 폐기물로 발생되는 알루미늄 드로스를 산업자원으로 재활용함으로 폐기물 매립으로 인한 환경오염을 방지하고 자원낭비를 방지할 수 있는 알루미늄 드로스를 이용한 수소가스의 제조방법을 제공한다.In addition, the present invention by recycling the aluminum dross generated as a waste in the industrial production of aluminum as a raw material as industrial resources to prevent environmental pollution due to landfill and hydrogen gas using aluminum dross that can prevent resource waste It provides a method of manufacturing.
또한 본 발명은 알루미늄 폐드로스를 재활용하여 알루미나 시멘트를 제조할 때 가열원으로 사용할 수 있도록 하는 알루미늄 드로스를 이용한 수소가스의 제조방법을 제공한다.In another aspect, the present invention provides a method for producing hydrogen gas using aluminum dross to recycle the aluminum waste dross to be used as a heating source when producing alumina cement.
또한 본 발명은 미립자 형태의 알루미늄과 암모니아수를 이용하여 물을 분해하고 연료를 값싸게 생산할 수 있도록 하는 알루미늄 드로스를 이용한 수소가스의 제조방법을 제공한다.In another aspect, the present invention provides a method for producing hydrogen gas using aluminum dross to decompose water and produce fuel cheaply using aluminum and ammonia water in the form of particulates.
상기한 바를 달성하기 위한 견지에 있어, 본 발명은 알루미늄 드로스와 18％의 NH4OH 및 물(H2O)을 7:2:1의 비율로 가수분해시켜 수소(H2)가스 및 아세치렌(C2H2)가스를 생성하는 과정으로 이루어지는 제조방법을 제안한다.In view of achieving the above, the present invention hydrolyzes aluminum dross and 18% of NH 4 OH and water (H 2 O) in a ratio of 7: 2: 1 to obtain hydrogen (H 2 ) gas and acetic acid. It proposes a manufacturing method consisting of a process of generating a (C 2 H 2 ) gas.
이하 본 발명의 실시 예를 구체적으로 설명하면 다음과 같다. 후술 될 상세한 설명에서는 상술한 기술적 과제를 이루기 위해 본 발명에 있어 대표적인 실시예를 제시할 것이다. 그리고 본 발명으로 제시될 수 있는 다른 실시 예들은 본 발명의 구성에서 설명으로 대체한다.Hereinafter, an embodiment of the present invention will be described in detail. DETAILED DESCRIPTION In the following detailed description, representative embodiments of the present invention will be presented in order to accomplish the above technical problem. And other embodiments that can be presented with the present invention are replaced by the description in the configuration of the present invention.
본 발명에서는 금속 알루미늄 미립자 및 암모니아를 이용한 물 분해 방법으로 산업 폐기물인 알루미늄 드로스를 수소가스 연료로 제조하는 방법을 구현하고자 하며, 바람직하게는 알루미늄 드로스에 물과 암모니아를 혼합하여 반응시키게 되면 발열하면서 OH기로 변화되고 알루미늄은 수용액 속에서 존재하는 NH4OH와 결합하여 NH4AlO2로 변환되고 H2 가스가 방출되며, 이를 가열하면 Al2O3로 변화되는데, 이때 방출되는 수소가스를 열원으로 사용할 수 있도록 하는 방법을 제시하고 있다.In the present invention, to implement a method for producing aluminum dross, an industrial waste, as a hydrogen gas fuel by water decomposition method using metal aluminum fine particles and ammonia, preferably when the reaction by mixing water and ammonia in the aluminum dross While being converted to OH group, aluminum is combined with NH 4 OH present in aqueous solution, converted into NH 4 AlO 2 , and H 2 gas is released, and when it is heated, it is converted into Al 2 O 3 . It suggests how to use it.
즉, 본 발명에서 사용되고 있는 산업폐기물인 알루미늄 드로스에는 10∼25％의 미립자 형태의 금속알루미늄, 질화알루미늄, ASH중 잔류가스가 존재하므로 암모 니아를 촉매로하여 물(H2O)과 수화반응시키면 물은 분해되어 산소는 알루미늄과 결합하여 산화알루미늄이 생성되고 수소(H2)와 아세치렌(C2H2)은 가스상태로 생성되며 암모니아는 물에 흡수되어 나온다.That is, in the industrial waste aluminum dross used in the present invention, since 10 to 25% of particulate aluminum metal aluminum, aluminum nitride, and residual gas in ASH are present, ammonia is used as a catalyst to hydrate the water (H 2 O). When water is decomposed, oxygen is combined with aluminum to produce aluminum oxide, hydrogen (H2) and acetylene (C2H2) are produced in a gaseous state, and ammonia is absorbed by water.
이와 같은 화학반응은 아래의 반응식 1에서 구체적으로 제시하고 있으며, 상기 반응식 1에 의해 연료가스 및 암모니아수가 생성된다.Such a chemical reaction is shown in detail in Scheme 1 below, and the fuel gas and the ammonia water are generated by the reaction scheme 1.
[반응식 1]Scheme 1
첫 번째로;First;
2H2O + 2NH4OH +2Al →(반응: 60∼80℃) 2NH4AlO2 + 3H2 ↑ →(건조: 70∼80℃) Al2O3 + 2NH3 +H2O2H 2 O + 2NH 4 OH + 2Al → (Reaction: 60 ~ 80 ℃) 2NH 4 AlO 2 + 3H 2 ↑ → (Dry: 70 ~ 80 ℃) Al 2 O 3 + 2NH 3 + H 2 O
두 번째로;The second;
2AlN + 5H2O = Al2O3 + 2NH4OH2AlN + 5H 2 O = Al 2 O 3 + 2NH 4 OH
세 번째로;Third;
2C +H2 → C2H2 2C + H 2 → C 2 H 2
여기서, 상기 NH4AlO + H2O를 가수분해시키면 Al(OH)3 + NH4OH가 되며,Here, the hydrolysis of the NH 4 AlO + H 2 O is Al (OH) 3 + NH 4 OH,
여기서 다시, 상기 Al(OH)3를 소성시키면 Al2O3 + 3H2O가 된다.Here, when the Al (OH) 3 is fired again, Al 2 O 3 + 3H 2 O is obtained.
이와 같이 암모니아를 촉매로 사용하는 것은 '두번째'의 화학반응에서 암모니아가 생성되므로 다른 알루미늄 용해방법이 있으나 자체 생성된 암모니아를 사용하도록 하여 원가절감을 구현할 수 있도록 하기 위함이다.In this way, the use of ammonia as a catalyst is intended to realize cost reduction by using ammonia produced by self, but there is another method of dissolving ammonia because ammonia is produced in the second chemical reaction.
한편, 상기한 바와 같이 암모니아는 수용액 상태로 유지되며 알루미늄은 수산화알루미늄으로 되며, 이를 가열하면 산화알루미늄으로 되고 유리된 수소는 기체로 되어 분리되는 것이다. 이때 분리된 수소가스 및 가연성 기체는 저장하는데 많은 비용과 기술이 소요되므로 본 발명에서는 곧바로 연소실로 유도시켜 이를 즉석에서 가열원으로 사용할 수 있도록 한다. 이때 상기 가열원은 알루미나 시멘트를 소성하는데 사용하면 가장 이상적이다.On the other hand, as described above, ammonia is maintained in an aqueous state, and aluminum becomes aluminum hydroxide, and when heated, it becomes aluminum oxide and free hydrogen becomes gas and is separated. In this case, since the separated hydrogen gas and the flammable gas require a lot of cost and technology to be stored, the present invention directly leads to the combustion chamber so that it can be immediately used as a heating source. At this time, the heating source is most ideal when used to fire the alumina cement.
이상과 같이, 상기의 화학반응에 의해 생성되는 물질은 고순도의 제품인 암모니아수(NH4OH), 아세치렌(C2H2)가스, 수소(H2)가스, 비료용 및 공업용으로 활용되는 유산암모니움((NH4)2SO4) 등으로 사용된다. 이때 상기 수소가스와 아세치렌가스는 가열원으로 사용되며, 상기 알루미늄재(즉, 가수분해시에 발생하는 산화알루미늄 및 기타 불순물)는 고온내식성 케스타블, 급결제 및 내식성 알루미나 시멘트를 제조할 때 사용될 수 있다.As described above, the material produced by the chemical reaction is a high purity product of ammonia water (NH 4 OH), acetylene (C 2 H 2 ) gas, hydrogen (H 2 ) gas, fertilizer and industrial use Ammonium ((NH 4 ) 2 SO 4 ) and the like. At this time, the hydrogen gas and acetylene gas are used as a heating source, and the aluminum material (ie, aluminum oxide and other impurities generated during hydrolysis) may be used to prepare high temperature corrosion resistant castable, fastener, and corrosion resistant alumina cement. Can be used when
이상으로 살펴본 바와 같이, 본 발명은 산업폐기물인 알루미늄 드로스를 재활용하여 수소가스 열원으로 생성함으로써 환경오염을 방지하고, 자원의 낭비를 미연에 방지할 수 있는 효과가 있다. 뿐만 아니라 상기 폐 알루미늄을 원료로 하여 알루미나 시멘트를 생산하여 산업 원자재로 활용할 수 있으며, 또한 산업체 폐기물의 매립을 방지함으로 인해 자연훼손을 예방할 수 있는 장점이 있다.As described above, the present invention has the effect of preventing environmental pollution by recycling the aluminum dross, which is industrial waste, as a hydrogen gas heat source, and prevents waste of resources. In addition, by using the waste aluminum as a raw material to produce alumina cement can be utilized as industrial raw materials, and also has the advantage of preventing natural damage by preventing the industrial landfill.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070003153A KR100845710B1 (en) | 2007-01-05 | 2007-01-05 | Process for the preparation of hydrogen gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070003153A KR100845710B1 (en) | 2007-01-05 | 2007-01-05 | Process for the preparation of hydrogen gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20080064693A true KR20080064693A (en) | 2008-07-09 |
| KR100845710B1 KR100845710B1 (en) | 2008-07-10 |
Family
ID=39815937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020070003153A KR100845710B1 (en) | 2007-01-05 | 2007-01-05 | Process for the preparation of hydrogen gas |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100845710B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111803857A (en) * | 2020-05-28 | 2020-10-23 | 南通大学 | Aluminum ash harmless treatment recycling system and working method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102156479B1 (en) | 2018-11-23 | 2020-09-16 | 신라대학교 산학협력단 | Method of manufacturing porous metal ball and metal balls produced therefrom |
| KR102118647B1 (en) | 2019-01-15 | 2020-06-09 | 주식회사 와이에이치인터내셔널 | aluminum dross recovering apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2404024A (en) | 1943-05-14 | 1946-07-16 | Standard Oil Co | Conversion catalyst |
| US4252776A (en) | 1979-03-29 | 1981-02-24 | Imperial West Chemical Company | Aluminum dross processing |
| JPS61234939A (en) | 1985-04-08 | 1986-10-20 | Mitsubishi Heavy Ind Ltd | Catalyst for producing h2-enriched gas |
| JP3796929B2 (en) | 1997-11-14 | 2006-07-12 | 日本軽金属株式会社 | Almidros residual ash treatment method |
| KR100278777B1 (en) | 1998-09-22 | 2001-01-15 | 곽영훈 | How to recycle aluminum dross |
| JP2000336420A (en) | 1999-05-26 | 2000-12-05 | Kawasaki Steel Corp | Method for decomposing and recovering treating gas for aluminum residual ash utilizing metal smelting and refining unburned gas |
-
2007
- 2007-01-05 KR KR1020070003153A patent/KR100845710B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111803857A (en) * | 2020-05-28 | 2020-10-23 | 南通大学 | Aluminum ash harmless treatment recycling system and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100845710B1 (en) | 2008-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102424394B (en) | Process for preparing water glass from silicon micropowder by using wet method | |
| US6187275B1 (en) | Recovery of AlF3 from spent potliner | |
| US8043592B2 (en) | Cascaded power plant process and method for providing reversibly usable hydrogen carriers in such a power plant process | |
| EP1047636A1 (en) | Method of treating spent potliner material from aluminum reduction cells | |
| MX2008011655A (en) | Method for making silicon for solar cells and other applications. | |
| CN102757051A (en) | Method for performing recovery treatment on waste layer silicon material | |
| CN106082339A (en) | A kind of employing zircon sand prepares the zirconic method of high-purity electro-melting | |
| KR20080064693A (en) | Process for the preparation of hydrogen gas | |
| CA2672168A1 (en) | Novel cascaded power plant process and method for providing reversibly usable hydrogen carriers in such a power plant process | |
| CN101215108A (en) | Method for producing series function magnesium chemical products by using magnesite | |
| JPH09202616A (en) | Ceramic stock and its production | |
| JP4107688B2 (en) | Method for treating gaseous waste in an optical fiber preform manufacturing apparatus for recovering germanium | |
| KR20090028089A (en) | Aluminum dross and water filtration plant waster carbone or ect carbone and water ammonia use acctylene gas process method | |
| KR100815062B1 (en) | Process for the preparation of aluminus cements | |
| KR20100113902A (en) | Aluminum dross and carbone use water ammonia and acctylene gas process method | |
| US6193944B1 (en) | Method of recovering fumed silica from spent potliner | |
| CN109970383A (en) | A kind of production technology using water purification agent waste residue manufacture accelerator | |
| Dong et al. | Optimization of AlN hydrolysis in aluminum dross based on response surface methodology and reaction kinetics | |
| AU749436B2 (en) | Method of treating spent potliner material from aluminum reduction cells | |
| KR102101180B1 (en) | Treatment Method of Aluminum Dust using Oxidizing Agent and Solidifying Agent | |
| TWI234587B (en) | Process for aluminum dross stabilization and recycling | |
| KR102262196B1 (en) | Method of recycling of aluminum dross | |
| AU2012201191A1 (en) | Method and apparatus for producing synthetic gas using aluminum dross and a thermoplastic | |
| CN114309025B (en) | Method for resource utilization of aluminum ash | |
| KR100908855B1 (en) | METHOD FOR MANUFACTURING MAGNESIUM PHOSPHATE COMPOUND FROM Wasted Magnesium Carbon Refractory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| LAPS | Lapse due to unpaid annual fee |