JP5058037B2 - 一酸化炭素吸着剤の製造方法 - Google Patents
一酸化炭素吸着剤の製造方法 Download PDFInfo
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- JP5058037B2 JP5058037B2 JP2008068213A JP2008068213A JP5058037B2 JP 5058037 B2 JP5058037 B2 JP 5058037B2 JP 2008068213 A JP2008068213 A JP 2008068213A JP 2008068213 A JP2008068213 A JP 2008068213A JP 5058037 B2 JP5058037 B2 JP 5058037B2
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(1)粒状の活性炭と粒状の一価の銅化合物とを含む混合粒を、固体のままメカノケミカル法を用いて共粉砕する粉砕工程を具え、前記共粉砕は、前記混合粒に水を加え、前記活性炭と一価の銅化合物とが平均粒径にして10μm以下になるまで行うことを特徴とする一酸化炭素吸着剤の製造方法。
本発明の一酸化炭素吸着剤の製造方法は、粒状の活性炭と粒状の一価の銅化合物とを含む混合粒を、固体のままメカノケミカル法を用いて共粉砕する粉砕工程を具え、前記共粉砕は、前記混合粒に水を加え、前記活性炭と一価の銅化合物とが平均粒径にして10μm以下になるまで行う。
本発明の一酸化炭素吸着剤は、粒状の活性炭と粒状の一価の銅化合物とを含む混合粒を固体のままメカノケミカル法を用いて共粉砕することにより得られる混合微細粒からなる。
活性炭(粒状白鷺G2X、日本エンバイロケミカル製)を粉砕して平均粒径21μmとし、この活性炭696gに塩化第一銅の粉末を54.2g加えてかき混ぜた。この混合物に水を5kg加え、ビーズ径:0.3mm、スリット幅:0.1mm、回転数2000rpmのビーズミルにてメカノケミカル法による微粉砕を行った。微粉砕後の固体の平均粒径は4.5μmとなった。水をろ過して分離後、80℃の乾燥器で一晩乾燥させることにより本発明に従う一酸化炭素吸着剤Aを得た。
塩化第一銅5.4gを100gの純水に投入し、適量の塩酸を加えて溶解した。これに実施例1と同じ活性炭(粒状白鷺G2X、日本エンバイロケミカル製)を75g加えた。1時間真空脱気後、加熱して水分および塩酸を蒸発させ、これを80℃の乾燥器で一晩乾燥させることにより一酸化炭素吸着剤Bを得た。
こうして得られた一酸化炭素分離用吸着剤の性能を評価した。図2に一酸化炭素に対する吸着等温線を示し、図3に窒素に対する吸着等温線を示す。なお、図2、3の横軸は初期圧力P0=101kPaで割ったときの圧力比で示す。一酸化炭素吸着剤Aの100kPa(P/P0=0.99)における一酸化炭素の吸着量は29.7mg/gであり、100kPaにおける一酸化炭素の吸着量が26.6mg/gである一酸化炭素吸着剤Bよりも12%多く吸着していることがわかる。また、一酸化炭素吸着剤Aの100kPaにおける窒素の吸着量は6.1mg/gで、一酸化炭素吸着剤Bの100kPaにおける窒素の吸着量が6.4mg/gであるから、一酸化炭素吸着剤Aのこの圧力における一酸化炭素の窒素に対する吸着量比は4.9であり、一酸化炭素吸着剤Bのこの圧力における一酸化炭素の窒素に対する吸着量比は4.2であった。また、一酸化炭素吸着剤Aの100kPaと5kPaにおける一酸化炭素の吸着量の差は20.8mg/gであるのに対し、一酸化炭素吸着剤Bの100kPaと5kPaにおける一酸化炭素の吸着量の差は17.7mg/gであり、本発明に従う一酸化炭素吸着剤Aは、一酸化炭素吸着剤Bよりも、吸着・脱着を繰り返すPSA法においても、一酸化炭素を分離する高い能力を有していることが分かる。
2 球体
3 ベッセル
4 回転体
5 回転軸
6 原料供給ポンプ
7 混合粒
8 モータ
9 混合微細粒
D ビーズ径
Claims (2)
- 粒状の活性炭と粒状の一価の銅化合物とを含む混合粒を、固体のままメカノケミカル法を用いて共粉砕する粉砕工程を具え、前記共粉砕は、前記混合粒に水を加え、前記活性炭と一価の銅化合物とが平均粒径にして10μm以下になるまで行うことを特徴とする一酸化炭素吸着剤の製造方法。
- 前記共粉砕は、ビーズミルを用いて行う請求項1に記載の一酸化炭素吸着剤の製造方法。
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JPS6041988B2 (ja) * | 1982-03-13 | 1985-09-19 | 英史 平井 | 一酸化炭素の吸着分離方法 |
GB8716213D0 (en) * | 1987-07-09 | 1987-08-12 | Alcan Int Ltd | Producing fine particles |
JP2001302224A (ja) * | 2000-04-21 | 2001-10-31 | Japan Science & Technology Corp | 水素貯蔵体とその製造方法 |
JP2003334438A (ja) * | 2002-05-20 | 2003-11-25 | Toyota Motor Corp | ガス吸着材の製造方法 |
JP2004305848A (ja) * | 2003-04-03 | 2004-11-04 | Honda Motor Co Ltd | 水素貯蔵材粉末 |
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JP4703126B2 (ja) * | 2004-03-29 | 2011-06-15 | 太平洋セメント株式会社 | 水素貯蔵材料の製造装置および水素貯蔵材料の製造方法 |
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