JPH06247702A - Production of hydrogen and method for concentrating cu, sn in fe based molten alloy - Google Patents
Production of hydrogen and method for concentrating cu, sn in fe based molten alloyInfo
- Publication number
- JPH06247702A JPH06247702A JP5933593A JP5933593A JPH06247702A JP H06247702 A JPH06247702 A JP H06247702A JP 5933593 A JP5933593 A JP 5933593A JP 5933593 A JP5933593 A JP 5933593A JP H06247702 A JPH06247702 A JP H06247702A
- Authority
- JP
- Japan
- Prior art keywords
- molten alloy
- hydrogen
- based molten
- concentrating
- blown
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
(57)【要約】
【目的】 Ｃｕ、Ｓｎを含むＦｅ系合金を用いて効率よ
く水素の製造を行なうとともに、Ｃｕ、Ｓｎを濃縮する
方法を提供する。
【構成】 Ｆｅ系溶融合金中にＯ2 とＨ2 Ｏとを吹き込
みもしくは吹き付け、Ｆｅを酸化させて水素を製造す
る。この時、Ｃｕ、Ｓｎを０．５ｗｔ％以上含むＦｅ系
溶融合金に適用し、Ｆｅの酸化にともない、Ｃｕ、Ｓｎ
を４０％以上もしくは初期の３倍以上に濃縮する。
(57) [Abstract] [PROBLEMS] To provide a method for efficiently producing hydrogen using an Fe-based alloy containing Cu and Sn and concentrating Cu and Sn. [Structure] O 2 and H 2 O are blown or blown into a Fe-based molten alloy to oxidize Fe to produce hydrogen. At this time, it was applied to a Fe-based molten alloy containing 0.5 wt% or more of Cu and Sn.
Is concentrated 40% or more or 3 times or more of the initial amount.
Description
【０００１】[0001]
【産業上の利用分野】この発明は、Ｆｅ系溶融合金を利
用して水素を製造する方法に関し、さらに、不純物を含
むＦｅ系溶融合金の不純物濃度を高める方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing hydrogen using a Fe-based molten alloy, and further to a method for increasing the impurity concentration of an Fe-based molten alloy containing impurities.
【０００２】[0002]
【従来の技術】従来のＦｅ系溶融合金を利用した水素を
含む燃料ガスを製造する方法としては、鉄浴中に石炭と
Ｏ2 及びＨ2 Ｏ、もしくは鉄鉱石を吹き込む方法がある
（特開昭５９−５０１０４号公報）。これは鉄浴中の炭
素を酸素で酸化させることにより熱源を得ており、この
熱で石炭中の揮発分の分解や、Ｈ2 Ｏ、鉄鉱石の還元を
行っている。ただし、この時発生するガスの主な組成は
Ｈ2 、Ｈ2 Ｏ、ＣＯ、ＣＯ2 であり、ここからＨ2 の純
度を向上させようとすると、Ｈ2 Ｏ、ＣＯ、ＣＯ2 を分
離する必要がある。2. Description of the Related Art As a conventional method for producing a fuel gas containing hydrogen using a Fe-based molten alloy, there is a method in which coal and O 2 and H 2 O, or iron ore is blown into an iron bath (Japanese Patent Laid-Open No. 2000-242242) Sho 59-50104). This obtains a heat source by oxidizing carbon in an iron bath with oxygen, and this heat decomposes volatile components in coal and reduces H 2 O and iron ore. However, the main composition of the gas generated at this time is H 2 , H 2 O, CO, and CO 2 , and if an attempt is made to improve the purity of H 2 from this, H 2 O, CO, and CO 2 are separated. There is a need.
【０００３】一方、Ｃｕ，Ｓｎは市販のスクラップ中に
かなり含まれており、これが鋼材中に入るとその性質に
悪影響を及ぼす。また、これらの元素の再利用の観点か
ら、これらの元素を分離する必要がある。これらの不純
物元素の除去方法としては、例えば特開昭５７−１３７
４１４号公報に見られるように、金属Ｃａ、Ｃａ合金、
あるいはＣａ化合物（例えば、ＣａＣ2 、ＣａＣＮ2 ）
等のＣａを主要構成元素とする反応性に富む物質を添加
し、その滓化により生成するスラグを分離除去する方法
がある。On the other hand, Cu and Sn are considerably contained in commercially available scrap, and if they enter steel, they adversely affect their properties. In addition, it is necessary to separate these elements from the viewpoint of recycling these elements. As a method for removing these impurity elements, for example, JP-A-57-137 is used.
No. 414, metal Ca, Ca alloys,
Alternatively Ca compound (e.g., CaC 2, CaCN 2)
There is a method of adding a substance having a high reactivity such as Ca as a main constituent element and separating and removing the slag generated by the slag formation.
【０００４】[0004]
【発明が解決しようとする課題】上記のＦｅ系溶融合金
を利用した水素を含む燃料ガスを製造する方法では、発
生するガスの主成分がＨ2 、Ｈ2 Ｏ、ＣＯ、ＣＯ2 であ
り、ここからＨ2 の純度を向上させようとすると、Ｈ2
Ｏ、ＣＯ、ＣＯ2 を分離する必要がある。これは、製造
コストの上昇になる。In the method for producing a fuel gas containing hydrogen using the above Fe-based molten alloy, the main components of the generated gas are H 2 , H 2 O, CO and CO 2 . If you try to improve the purity of H 2 from here, H 2
It is necessary to separate O, CO and CO 2 . This increases the manufacturing cost.
【０００５】また、上記の不純物除去方法では、そこで
用いる添加物質がＣａを主要構成元素としており、反応
性に富む物質であるため取扱い上注意を要する場合があ
り、また、このような物質を用いることは割高でもある
ため、コスト高につながる。さらに、この方法では、分
離除去された不純物元素の純度を上げて再利用すること
は困難である。Further, in the above-mentioned impurity removing method, the additive substance used therein has Ca as a main constituent element and is a substance having a high reactivity, so that it may be necessary to be careful in handling, and such a substance is used. This is also expensive, which leads to higher costs. Further, with this method, it is difficult to increase the purity of the separated and removed impurity element and reuse it.
【０００６】[0006]
【課題を解決するための手段】本発明は前記課題を解決
するものであって、Ｆｅ系溶融合金中にＯ2 とＨ2 Ｏと
を吹き込みもしくは吹き付けて、ＦｅによりＨ2 Ｏを還
元することを特徴とする水素の製造方法である。また上
記の水素の製造方法をＣｕ、Ｓｎの各元素の含有量の合
計が０．５ｗｔ％を越えるＦｅ系溶融合金に適用し、Ｆ
ｅの酸化による滓化にともない、Ｃｕ、Ｓｎの各元素の
含有量の合計が４０％以上もしくは初期の３倍以上にな
るまで濃縮させることを特徴とするＦｅ系溶融合金中Ｃ
ｕ、Ｓｎの濃縮方法である。Means for Solving the Problems The present invention is to solve the above-mentioned problems and is to reduce or reduce H 2 O by Fe by blowing or blowing O 2 and H 2 O into a Fe-based molten alloy. Is a method for producing hydrogen. Further, the above hydrogen production method is applied to a Fe-based molten alloy in which the total content of Cu and Sn elements exceeds 0.5 wt%,
C in Fe-based molten alloy characterized by concentrating until the total content of each element of Cu and Sn becomes 40% or more or 3 times or more of the initial content with the slag formation due to the oxidation of e.
This is a method for concentrating u and Sn.
【０００７】[0007]
【作用】以下、本発明について作用とともに詳細に説明
する。図１に断面図を示すような反応容器１にＣｕおよ
び／もしくはＳｎを０．５ｗｔ％以上含有する溶鋼２を
装入した状態で、ノズル３およびノズル４からそれぞれ
酸素とＨ2 Ｏを吹き込む。これらのガスは溶鋼表面の上
方から吹き付けてもよい。この時、吹き込まれた酸素は
Ｆｅと優先的に反応し、ＦｅＯが生成するとともに発熱
する。また吹き込まれたＨ2 Ｏの一部はＦｅと反応し、
ＦｅＯが生成するとともに水素が発生する。発生するガ
スはＨ2 Ｏと水素の混合物であるので、冷却器６で冷却
することにより容易にＨ2 Ｏを除去し、純度の高い水素
を得ることができる。The operation of the present invention will be described in detail below. With a molten steel 2 containing 0.5 wt% or more of Cu and / or Sn charged in a reaction vessel 1 whose cross-sectional view is shown in FIG. 1, oxygen and H 2 O are blown from a nozzle 3 and a nozzle 4, respectively. These gases may be blown from above the molten steel surface. At this time, the blown oxygen preferentially reacts with Fe to generate FeO and generate heat. Moreover, a part of the blown H 2 O reacts with Fe,
FeO is generated and hydrogen is generated. Since the generated gas is a mixture of H 2 O and hydrogen, H 2 O can be easily removed by cooling with the cooler 6 to obtain highly pure hydrogen.
【０００８】発生するＦｅＯ５は処理中に連続的に容器
外に排出されるか、処理後にまとめて排出してもよい。
また、Ｆｅが優先的に酸化されていくのに従ってＣｕ、
Ｓｎの濃縮が起こり、これらの元素の再利用も可能にな
る。また、生成した純度の高いＦｅＯは、高炉にリサイ
クルすることもでき、これによりＣｕ、Ｓｎの少ない溶
銑として再生が可能になる。なお、Ｃｕおよび／もしく
はＳｎの含有量が０．５ｗｔ％以上の場合には、それら
の濃度は容易に濃縮されていくが、０．５ｗｔ％未満で
は元々レベルが低すぎて、濃縮が困難である。実用上
は、０．５ｗｔ％が下限である。The generated FeO5 may be continuously discharged outside the container during the treatment, or may be collectively discharged after the treatment.
Also, as Fe is preferentially oxidized, Cu,
Concentration of Sn occurs, and reuse of these elements becomes possible. The generated high-purity FeO can also be recycled to the blast furnace, which makes it possible to regenerate it as hot metal containing less Cu and Sn. When the content of Cu and / or Sn is 0.5 wt% or more, the concentration is easily concentrated. However, when the content is less than 0.5 wt%, the original level is too low and concentration is difficult. is there. Practically, the lower limit is 0.5 wt%.
【０００９】[0009]
【実施例】１０ｗｔ％のＣｕを含有するＦｅ−Ｃｕ溶融
合金７ｔを用いて、１５５０〜１６５０℃の温度範囲で
本発明を実施した。Ｈ2 Ｏは２００℃に予熱して直径８
ｍｍの底吹きノズル４本から１０００Ｎｍ3 ／ｈの速度
で吹き込んだ。また酸素は同じく直径８ｍｍの底吹きノ
ズルから３００Ｎｍ3 ／ｈの速度で吹き込んだ。この処
理を２．３時間行った結果、２３００Ｎｍ3 ／ｈの排ガ
スを得た。排ガスの組成は水素が４１％、Ｈ2 Ｏが５９
％であった。得られた溶融合金は、１．４ｔであり、そ
の中のＣｕは５０ｗｔ％まで濃縮された。またＦｅＯが
７．２ｔ得られたが、この中に含まれる酸化銅は０．０
１ｗｔ％以下であった。EXAMPLES The present invention was carried out in the temperature range of 1550 to 1650 ° C. by using the Fe—Cu molten alloy 7t containing 10 wt% of Cu. H 2 O is preheated to 200 ° C and has a diameter of 8
Blowing was performed at a rate of 1000 Nm 3 / h from four bottom-blowing nozzles of mm. Oxygen was also blown from a bottom blowing nozzle having a diameter of 8 mm at a rate of 300 Nm 3 / h. As a result of performing this treatment for 2.3 hours, an exhaust gas of 2300 Nm 3 / h was obtained. 41% The composition of the exhaust gases hydrogen, H 2 O 59
%Met. The obtained molten alloy was 1.4t, and the Cu therein was concentrated to 50wt%. Further, 7.2 t of FeO was obtained, but the copper oxide contained in this was 0.0
It was 1 wt% or less.
【００１０】同様の処理を表１に示す３種類の組成の溶
融合金で行った結果を同表に示す。いずれの場合も、Ｃ
ｕ、Ｓｎは初期濃度の３倍以上に濃縮されており、得ら
れた排ガスの組成はいずれも水素４０％以上であった。
これらのガスを、２５℃に冷却してＨ2 Ｏを除去し、９
７％の水素を得た。The same table shows the results obtained by performing the same treatment on molten alloys having the three kinds of compositions shown in Table 1. In any case, C
u and Sn were concentrated to 3 times or more of the initial concentration, and the composition of the obtained exhaust gas was 40% or more of hydrogen.
These gases are cooled to 25 ° C. to remove H 2 O,
7% hydrogen was obtained.
【００１１】[0011]
【表１】 [Table 1]
【００１２】[0012]
【発明の効果】本発明により、溶融Ｆｅ系合金を用いて
水素を効率よく製造することができるとともに、Ｆｅ中
のＣｕ、Ｓｎを効率よく濃縮分離し、スクラップを鉄源
として有効利用することができる。EFFECTS OF THE INVENTION According to the present invention, hydrogen can be efficiently produced using a molten Fe-based alloy, and Cu and Sn in Fe can be efficiently concentrated and separated to effectively use scrap as an iron source. it can.
【図１】本発明の方法を示す図FIG. 1 is a diagram showing the method of the present invention.
１ 反応容器 ２ 溶鋼 ３ ノズル（酸素用） ４ ノズル（Ｈ2 Ｏ用） ５ ＦｅＯ ６ 冷却器1 Reaction Container 2 Molten Steel 3 Nozzle (for Oxygen) 4 Nozzle (for H 2 O) 5 FeO 6 Cooler
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小川 雄司 千葉県富津市新富20−１ 新日本製鐵株式 会社技術開発本部内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Ogawa 20-1 Shintomi, Futtsu-shi, Chiba Nippon Steel Corporation Corporate Technology Development Division
Claims (2)
き込みもしくは吹き付けて、ＦｅによりＨ2 Ｏを還元す
ることを特徴とする水素の製造方法。1. A method for producing hydrogen, wherein O 2 and H 2 O are blown or blown into a Fe-based molten alloy to reduce H 2 O by Fe.
含有量の合計が０．５ｗｔ％を越えるＦｅ系溶融合金に
適用し、Ｆｅの酸化による滓化にともない、Ｃｕ、Ｓｎ
の各元素の含有量の合計が４０％以上もしくは初期の３
倍以上になるまで濃縮させることを特徴とするＦｅ系溶
融合金中Ｃｕ、Ｓｎの濃縮方法。2. The method according to claim 1 is applied to a Fe-based molten alloy in which the total content of each element of Cu and Sn exceeds 0.5 wt%, and Cu and Sn are accompanied by slag formation due to oxidation of Fe.
The total content of each element of 40% or more or the initial 3
A method for concentrating Cu and Sn in an Fe-based molten alloy, which comprises concentrating until it is double or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5933593A JPH06247702A (en) | 1993-02-25 | 1993-02-25 | Production of hydrogen and method for concentrating cu, sn in fe based molten alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5933593A JPH06247702A (en) | 1993-02-25 | 1993-02-25 | Production of hydrogen and method for concentrating cu, sn in fe based molten alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06247702A true JPH06247702A (en) | 1994-09-06 |
Family
ID=13110360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5933593A Withdrawn JPH06247702A (en) | 1993-02-25 | 1993-02-25 | Production of hydrogen and method for concentrating cu, sn in fe based molten alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06247702A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070403A1 (en) * | 2001-03-06 | 2002-09-12 | Alchemix Corporation | Method for the production of hydrogen and applications thereof |
| US6620398B2 (en) | 2001-03-06 | 2003-09-16 | Alchemix Corporation | Method for the production of ammonia |
| US6663681B2 (en) | 2001-03-06 | 2003-12-16 | Alchemix Corporation | Method for the production of hydrogen and applications thereof |
| US6682714B2 (en) | 2001-03-06 | 2004-01-27 | Alchemix Corporation | Method for the production of hydrogen gas |
| US6685754B2 (en) | 2001-03-06 | 2004-02-03 | Alchemix Corporation | Method for the production of hydrogen-containing gaseous mixtures |
| US7232472B2 (en) | 2001-03-06 | 2007-06-19 | Alchemix Corporation | Method for the treatment of coal |
-
1993
- 1993-02-25 JP JP5933593A patent/JPH06247702A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070403A1 (en) * | 2001-03-06 | 2002-09-12 | Alchemix Corporation | Method for the production of hydrogen and applications thereof |
| US6620398B2 (en) | 2001-03-06 | 2003-09-16 | Alchemix Corporation | Method for the production of ammonia |
| US6663681B2 (en) | 2001-03-06 | 2003-12-16 | Alchemix Corporation | Method for the production of hydrogen and applications thereof |
| US6682714B2 (en) | 2001-03-06 | 2004-01-27 | Alchemix Corporation | Method for the production of hydrogen gas |
| US6685754B2 (en) | 2001-03-06 | 2004-02-03 | Alchemix Corporation | Method for the production of hydrogen-containing gaseous mixtures |
| US7232472B2 (en) | 2001-03-06 | 2007-06-19 | Alchemix Corporation | Method for the treatment of coal |
| AU2002254101B2 (en) * | 2001-03-06 | 2008-03-20 | Alchemix Corporation | Method for the production of hydrogen and applications thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000509 |