JP5551592B2 - 光触媒フィルター用媒体 - Google Patents
光触媒フィルター用媒体 Download PDFInfo
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- JP5551592B2 JP5551592B2 JP2010519493A JP2010519493A JP5551592B2 JP 5551592 B2 JP5551592 B2 JP 5551592B2 JP 2010519493 A JP2010519493 A JP 2010519493A JP 2010519493 A JP2010519493 A JP 2010519493A JP 5551592 B2 JP5551592 B2 JP 5551592B2
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- gas
- purifier
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- pco
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Images
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Description
−受けるUVの強さ
−清浄器の処理量
−汚染物質の、媒体を通過する速度
−紫外線とヒドロキシルラジカルの作用に対する媒体およびPCOコーティングの不感受性
−PCO媒体による圧力低下
−副産物という名称で知られている潜在的に有毒な中間体化合物生成の抑制
について最適化されなければならない。
−このフェルトは本質的に鉱物性である。
−このフェルトは、圧力低下が1m/sで150Pa未満、より一般的には1m/sで50Pa未満、気体1m/sで20Pa未満でさえある。
−このフェルトは、均質であり、したがってそれを通過する気体の潜在的経路がない。
−このフェルトは、肉眼で見える穴を示さない。
−UVの強度を大きく低下させ、および/または
−清浄器の流量、すなわち処理すべき気体の濾過媒体を通過する速度を大きく低下させる
ことが推奨される(このような特定の状態が起こった場合)。
・UV源から出発して、いくつかのストランドの光ガイド(例えば、光ファイバータイプの)を反応器中に導入できる。これらのストランドは、光エネルギーを反応器中に導入する案内装置として作動する。UVエネルギーを反応器中にできるだけ均一に分布させるため、基材1cm2毎に1つのストランドが考えられる。このような装置の原理は図14に示してある。
・UV源から出発して、単一ストランドの光ガイド(例えば、光ファイバー)を反応器中に導入できる。次いで、これらのストランドは、適切な曲率を付与されたレフレクターまたはミラーを照射し、次いでそのUV光は、反応器内で、できるだけ均一に、このミラーまたはこのレフレクターで反射される。この装置の原理は図14に示してある。他の分散装置を使用してこの目的を達成することもできる。
フェルトを以下のようにして製造する。直径4.4mmの溶融シリカのロッドをオキシプロパンバーナー中で延伸して、直径0.2mmのフィラメントにする。次にこのフィラメントを火炎延伸ブロー成形によって第2のバーナー中で再び延伸して、平均直径を9μmにして、受取りベルトまたは受取りドラム上に投げ出す。そのドラムの速度を調節して下記表(第2表)に示す単位面積当たりの質量のフェルトを得る。次いで、得られたフェルトに、下記表6に示す配合で得られる製剤を含浸させる。
ステンレス鋼製で、中に、直径が47mmの媒体ディスクを入れた反応器を使用する。その反応器の頂部に、シリカのスリットを通じてHPK 125 WのUV照射を生成させる。その照射の強度は、ランプ/媒体の距離を調節することによって制御する。媒体において測定して365nmにて5mW/cm2(媒体の)というUVの強度を使用する。300ppmのメタノールを含有する、濾過空気の連続流を、反応器の上流に、350ml/分の速度で導入する。メタノールの濃度は、PCO処理を実施した後、反応器の下流で、ガスクロマトグラフィーで測定する。汚染物質の鉱物質への転化(CO2およびH2Oへの転化)は、その化学的平衡が活性炭タイプの装置が遭遇することがある単に純粋の吸着現象ではないことを確認することによって確かめる。媒体を製造するためのより特別な操作条件および先に説明した「メタノール試験」で異なる媒体について観察された効率は表8に示してある。Millenium S5 300 の場合、TiO2は100%アナターゼであった。このことは、必ずしも、TIO2に基づいたどの触媒にも当てはまるわけではない。例えば、Degussaから入手できる触媒P25のTiO2は、約1/3がルチルで2/3がアナターゼである。
直径4.4mmの溶融シリカのロッドをオキシプロパンバーナー中で延伸して、直径0.2mmのフィラメントにする。次いで、このフィラメントを、火炎延伸ブロー成形によって第2のバーナー中で再び延伸して、平均直径を9μmにして、受取りドラム上に投げ出す。そのドラムの速度を調節して単位面積当たりの質量が80g/m2のフェルトを得る。次いで、得られたフェルトに、下記表9に示す配合に従って含浸させる。
1F:1つのPCO媒体
2F:UVランプの両側に配置された2つのPCO媒体
Dmax:最大流量(130m3/h)
D1/2:最大流量の1/2の流量
UVmax:最大UV照射
UV/2:最大UV照射の1/2のUV照射
UVmin:受けたUV照射2mW/cm2
直径4.4mmの溶融シリカのロッドをオキシプロパンバーナー中で延伸して、直径0.2mmのフィラメントにする。次いで、このフィラメントを、火炎延伸ブロー成形によって第2のバーナー中で再び延伸して、平均直径を9μmにして、受取りドラム上に投げ出す。そのドラムの速度を調節して単位面積当たりの質量が65g/m2のフェルトを得る。次いで、得られたフェルトに、下記表10に示す配合に従って得た製剤を含浸させる。
−オフィス:30m3
−空気の置換度(DRA):0.6〜1容積/h
−商標Quartzel(Saint−Gobain Quartz SASの登録商標)の溶融シリカ繊維製のフェルトで、単位面積当たりの質量が65g/m2(媒体の質量は100g/m2)
−清浄器中の公称流量:130m3/h
−受けるUV照射:15mW/cm2
直径5.5mmの溶融シリカのロッドをオキシプロパンバーナー中で延伸して、直径0.2mmのフィラメントにする。次いで、このフィラメントを、火炎延伸ブロー成形によって第2のバーナー中で再び延伸して、平均直径を9μmにして、受取りドラム上に投げ出す。そのドラムの速度を調節して単位面積当たりの質量が50g/m2のフェルトを得る。次いで、得られたフェルトに、下記表11の配合によって調製した製剤を含浸させる。
−清浄器中の公称流量:130m3/h
−受けるUV照射:15mW/cm2
Claims (17)
- 気体清浄器であって、
光触媒作用を有する濾過媒体と、
該濾過媒体をUV放射で照射するための照射装置と、
時間遅延手段または揮発性有機化合物の分析器と、
前記気体清浄器を通過する気体の速度を自動的に調節するかまたはUV照射の強度を調節するための手段と
を備え、この調節が、前記時間遅延手段によって決定される時間に応じてまたは前記分析器によって分析される揮発性有機化合物の含有量に応じて実施され、UV照射の強度が前記時間遅延手段によって決定される時間に応じて調節される場合には、該時間遅延手段によって低いUV照射とより高いUV照射の間で制御される、気体清浄器。 - 揮発性有機化合物の分析器を備え、該分析器によって流入する気体が分析される、請求項1に記載の気体清浄器。
- 前記照射装置が、前記濾過媒体1cm2当たり少なくとも1mWに等しい前記濾過媒体が受ける強度を発するLEDを備えた、請求項1または2に記載の気体清浄器。
- 前記照射装置が、光を前記濾過媒体へ運ぶための、少なくとも1つの光ガイドを備えた、請求項1〜3のいずれか1項に記載の気体清浄器。
- 前記少なくとも1つの光ガイドが光ファイバーである、請求項4に記載の気体清浄器。
- 少なくとも1つの角度を有する濾過カートリッジを備え、該濾過カートリッジが前記光触媒作用を有する濾過媒体を備えた、請求項1〜5のいずれか1項に記載の気体清浄器。
- 前記角度が関節を形成している、請求項6に記載の気体清浄器。
- 請求項1〜7のいずれか1項に記載の気体清浄器を複数備え、この複数の気体清浄器の前記濾過媒体を照射するための単一の源を備えた、空気を浄化するための装置。
- 光ガイドを介して前記気体清浄器に照射が伝達される、請求項8に記載の装置。
- 前記光ガイドが光ファイバーである、請求項9に記載の装置。
- 請求項1〜7のいずれか1項に記載の気体清浄器または請求項8〜10のいずれか1項に記載の装置を用いて気体を浄化する方法。
- 光触媒作用を有する濾過媒体と、該濾過媒体をUV放射で照射するための照射装置とを備えた清浄器を用いて気体を浄化する方法であって、前記気体中の化合物の濃度がV1値よりも大きい場合には、前記清浄器の作動容量を、前記気体中の化合物の濃度がV1以下であるV2値よりも小さい場合の作動容量よりも小さくする、方法。
- 前記化合物がホルムアルデヒドであり、V1とV2が0.3〜80μg/m3である、請求項12に記載の方法。
- 前記清浄器が請求項1〜7のいずれか1項に記載の気体清浄器である、請求項12または13に記載の方法。
- 清浄器を用いて気体を浄化する方法であって、前記清浄器が、光触媒作用を有する濾過媒体と、該濾過媒体をUV放射で照射するための照射装置と、前記清浄器の低いかまたはより高い容量を制御する時間遅延手段とを備えた、方法。
- 香水の製造のための工場または蒸留所の空気を浄化するための、請求項1〜7のいずれか1項に記載の気体清浄器または請求項8〜10のいずれか1項に記載の装置の使用。
- 果物、野菜または草花のような植物を収容する倉庫または冷蔵庫の空気を浄化するための、請求項1〜7のいずれか1項に記載の気体清浄器または請求項8〜10のいずれか1項に記載の装置の使用。
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- 2008-07-17 EP EP08827038A patent/EP2175992A2/fr not_active Withdrawn
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- 2008-07-17 CA CA2695314A patent/CA2695314A1/fr not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
CN101855016A (zh) | 2010-10-06 |
CA2695314A1 (fr) | 2009-02-12 |
CN101861205A (zh) | 2010-10-13 |
WO2009019388A1 (fr) | 2009-02-12 |
MX2010001508A (es) | 2010-06-01 |
US8617300B2 (en) | 2013-12-31 |
CN101855016B (zh) | 2013-07-17 |
JP2010535614A (ja) | 2010-11-25 |
WO2009019387A2 (fr) | 2009-02-12 |
US8048391B2 (en) | 2011-11-01 |
FR2919811B1 (fr) | 2010-10-15 |
EP2175993A1 (fr) | 2010-04-21 |
KR20100074120A (ko) | 2010-07-01 |
CN101861205B (zh) | 2012-11-28 |
WO2009019387A3 (fr) | 2009-06-04 |
JP2015171717A (ja) | 2015-10-01 |
EP2175992A2 (fr) | 2010-04-21 |
JP2010535615A (ja) | 2010-11-25 |
FR2919811A1 (fr) | 2009-02-13 |
MX2010001513A (es) | 2010-06-17 |
US20110064638A1 (en) | 2011-03-17 |
JP5864101B2 (ja) | 2016-02-17 |
US20120063958A1 (en) | 2012-03-15 |
KR20100087074A (ko) | 2010-08-03 |
CA2695317A1 (fr) | 2009-02-12 |
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