JP2021100910A - 精製過酸化水素ガス生成方法およびデバイス - Google Patents
精製過酸化水素ガス生成方法およびデバイス Download PDFInfo
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Abstract
Description
本願は、2014年5月5日に出願された米国仮出願第61/988,535号の優先権を主張し、ここに出典明示して、そのすべてを本明細書の一部とみなす。
したがって、本開示は、20%と60%との間の開口面積、および750nm以内の最大厚を持つメッシュを有する通気性基材構造を提供し含む。通気性基材の適当な厚さは、段落[0060] および[0061]にて前記に提供されている。また、約40%の開口面積を持つメッシュを有する通気性基材構造が含まれる。ある態様において、メッシュ開口部は約200ミクロンであり、糸厚さは約152ミクロンである。
実施例1:PHPG、オゾン、VOC、温度および湿度の測定:
PHPG濃度の読みは、すべてドリーガー製品で行った。 Pac III、Polytron 7000またはドリーガー管は、一般的に製造者指示に従いすべての試験に利用した。Polytronは、空気がメッシュセンサーを通して示された場合にデジタルの読みを表示する。最も一般的には、ドリーガー管は、両端をクリップで留め、ACCURO(登録商標)ポンプ中に配置した後に用いた。製造者指示により、管を100回ポンプ吸引し、PHPGのレベルを水晶中の変色の観察により決定した。PAC IIIは、非常に低レベルのPHPGを測定するのに一般的に余り有効でないことが判明した。
筺体205、通気性基材201、空気分配機構203および光源203を含む図2A 〜2Bにおいて示されるPHPG生成用デバイス20を試験に用いた。通気性基材201は、水中の10〜35%のスラリーのアナターゼ型TiO2中でポリエステルメッシュを浸漬被覆することによって調製し、空気乾燥させた。メッシュの開口孔の目詰まりを防止するために、空気を通気性基材を通して吹き付けた。空気分配機構はその最高のセッティングで設定し、約115立方フィート/分の気流を提供した。室の湿度を約55%に維持する。PHPG生成用デバイスは、8フィートの天井を持つ140平方フィートの閉鎖した室で1時間作動させ、次いで、定常状態レベルのPHPGを決定した。PHPG生成用デバイスの継続的な操作がない限り、PHPGは消散し、約5分以内に検出できない。オゾンはいずれの試験においても検出されなかった。
PHPG生成に対するメッシュ変化の効果は、表4に提供したTiO2コーティングした通気性基材201を交換し、実施例2に記載のごとく試験することにより行った。
実施例2によるデバイスは、通気性基材201の回転を可能とするデバイスの頂部覆い(shroud)として10インチのアルミニウムアダプターを付けることにより変更した。152ミクロンの糸および41%の開口面積を有する通気性基材を、デバイスに位置させた。90°での気流を有して測定した初期の定常状態レベルのPHPGは、0.7ppmであった。通気性基材201は、2°増加で覆い内で回転させ、ポリトロンがもはや過酸化水素を検出しなくなるまで、定常状態レベルのPHPGを測定した。PHPGの生成は約90°〜約68°(例えば、垂直から22°)で維持する。約68°から初めて、PHPGは、10°当たりおよそ0.1ppmにて68°から14°まで一定で減少する。気流の入射角が14°未満である場合、PHPG生成は検出されない。
Claims (75)
- a. 筺体;
b. 気流を提供する空気分配機構;
c. その表面上に触媒を有する通気性基材構造;
d. 光源
を含む非水和精製過酸化水素ガス(PHPG)を生成するためのデバイスであって、
該気流は、該通気性基材構造を通り;かつ
該デバイスはPHPGを生成し、作動中にPHPGを該筺体から外へ誘導する
ことを特徴とする該デバイス。 - 光源が、紫外線源である請求項1記載のデバイス。
- 該気流が14°より大きい該基材構造に対する入射角を含む請求項1記載のデバイス。
- 該気流が、50°より大きい、60°より大きい、70°より大きい、75°より大きい、80°より大きい、85°より大きい、および89°より大きい入射角よりなる群から選択される入射角を含む請求項1記載のデバイス。
- 該気流が、68°と90°との間にある入射角を含む請求項1記載のデバイス。
- 該入射角が90°である請求項1記載のデバイス。
- 該気流が少なくとも5%の湿度を有する空気を含む請求項1記載のデバイス。
- さらに、加湿器を含む請求項1記載のデバイス。
- 該通気性基材構造が、約5nmと約750nmとの間の厚さである請求項1記載のデバイス。
- 該通気性基材構造の厚さが、5nm〜15nm、15nm〜30nm、30nm〜50nm、50nm〜75nm、75nm〜100nm、100nm〜250nm、250nm〜500nmおよび500nm〜750nmよりなる群から選択される請求項9記載のデバイス。
- 該通気性基材構造の厚さが、20nmと40nmとの間にある請求項9記載のデバイス。
- 該通気性基材構造の厚さが、100nmと200nmとの間にある請求項9記載のデバイス。
- 該通気性基材構造が、10%と60%との間の開口面積のパーセンテージを有するメッシュである請求項1記載のデバイス。
- 該通気性基材構造が、20%と60%との間の開口面積のパーセンテージを有するメッシュである請求項13記載のデバイス。
- 開口面積の該パーセンテージが、10%〜20%、20%〜30%、30%〜40%、40%〜50%および50%〜60%よりなる群から選択される請求項13記載のデバイス。
- 開口面積の該パーセンテージが、36%から38%との間にある請求項13記載のデバイス。
- 開口面積の該パーセンテージが約37%である請求項13記載のデバイス。
- 該紫外線が、該基材の表面にて、1平方インチ当たり0.1ワットと1平方インチ当たり150ワットとの間の強度を有する光で、該通気性基材構造を照らすことを特徴とする請求項2記載のデバイス。
- 該強度が、1平方インチ当たり2.5ワットと7.4ワットとの間であることを特徴とする請求項18記載のデバイス。
- 該強度が1平方インチ当たり約5ワットであることを特徴とする請求項19記載のデバイス。
- 該紫外線が、190nmと460nmとの間にある波長を含むことを特徴とする請求項2記載のデバイス。
- 該紫外線が187nm未満の波長を含まないことを特徴とする請求項2記載のデバイス。
- さらに、188nm以下の波長を有する紫外線光を遮断するフィルターを含む請求項21記載のデバイス。
- 紫外線の該波長が340nmと380nmとの間にあることを特徴とする請求項19記載のデバイス。
- 少なくとも90%の該光のパワーが、340nmと380nmとの間で放射されることを特徴とする請求項24記載のデバイス。
- 少なくとも99%の該光のパワーが、350nmと370nmとの間で放射されることを特徴とする請求項25記載のデバイス。
- 1%未満の該光が、280nmと315nmとの間の波長を有する紫外線B放射であることを特徴とする請求項21記載のデバイス。
- 該紫外線B放射が、全放射の0.1%未満であることを特徴とする請求項27記載のデバイス。
- 該紫外線が262nmにて最大を有する請求項25記載のデバイス。
- さらに、窒素酸化物(NOx)、硫黄酸化物 (SOx)、揮発性有機分子 (VOM)、家庭のほこり、花粉、イエダニ残屑、カビ胞子、ペットの鱗屑、煙、スモッグおよび細菌よりなる群から選択される、該通気性基材構造を通って流れることに先立ち該気流からの1以上の汚染物質を除去するための1以上のフィルターを含むことを特徴とする請求項1記載のデバイス。
- 1以上の該フィルターが、有機蒸気フィルター、微粒子フィルター、高性能フィルター、疎水性フィルター、活性炭フィルターまたはそれらの組合せである請求項30記載のデバイス。
- 該汚染物質が、一酸化窒素(NO)、二酸化窒素(NO2)、一酸化硫黄、二酸化硫黄、ホルムアルデヒド、アセトアルデヒド、トルエン、プロパノールまたはブテンを含む請求項30記載のデバイス。
- 1以上の該フィルターが、サイズが0.3ミクロンと10ミクロンとの間の粒子を捕捉することができる微粒子フィルターを含む請求項30記載のデバイス。
- 1以上の該フィルターがゼオライトを含む請求項1記載のデバイス。
- 該気流が、5ナノメートル/秒(nm/s)〜10,000nm/sの流速で該通気性基材構造を通って流れることを特徴とする請求項1記載のデバイス。
- 該流速が、5nm/s〜15nm/s、15nm/s 〜30nm/s、30nm/s 〜50nm/s、50nm/s 〜75nm/s、75nm/s 〜100nm/s、100nm/s 〜250nm/s、250nm/s 〜500nm/s、500nm/s 〜750nm/s、750nm/s〜1000nm/s、1000nm/s〜2,500nm/s、2,500nm/s 〜5,000nm/s、5,000nm/s〜7,500nm/sおよび7,500nm/s 〜10,000nm/sよりなる群から選択されることを特徴とする請求項35記載のデバイス。
- 該空気が、1秒未満の該触媒表面上の滞留時間を有する請求項1記載のデバイス。
- 該通気性基材構造が、さらに、吸湿性添加剤を含む請求項1記載のデバイス。
- 該吸湿性添加剤が、重炭酸ナトリウム、重炭酸カリウム、炭酸ナトリウム、炭酸カリウム、炭酸マグネシウム、重炭酸マグネシウム、水酸化ナトリウム、水酸化カリウム、水酸化マグネシウム、塩化亜鉛、塩化カルシウム、塩化マグネシウム、リン酸ナトリウム、リン酸カリウム、リン酸マグネシウム、カーナライト、クエン酸鉄アンモニウム、ナイロン、アクリロニトリル・ブタジエン・スチレン(ABS)、ポリカーボネート、セルロースおよびポリ(メタクリル酸メチル)よりなる群から選択される求項38記載のデバイス。
- 該通気性基材構造が、該触媒表面にて7.0を超えるpHを有する請求項1記載のデバイス。
- 該気流が、該紫外線に面する通気性基材構造側でより高い圧力を維持することを特徴とする請求項1記載のデバイス。
- 該空気分配機構がファンである請求項1記載のデバイス。
- 該触媒が、二酸化チタン、銅、酸化銅、亜鉛、酸化亜鉛、鉄、酸化鉄、タングステン、三酸化タングステンおよびそれらの混合物よりなる群から選択される金属または金属酸化物触媒である請求項1記載のデバイス。
- 該金属または金属酸化物触媒が、さらに助触媒を含む請求項43記載のデバイス。
- 該助触媒が、プラチナ、銀、金、ニッケル、パラジウム、二酸化チタンセラミックまたは押出成形セラミックから選択される請求項44記載のデバイス。
- 該薄い通気性基材構造が、ポリマー、炭素繊維またはガラス繊維を含む請求項1記載のデバイス。
- 該湿潤周囲空気が80%未満の相対湿度を有することを特徴とする請求項1記載のデバイス。
- 該湿潤周囲空気が、10%と80%との間、30%と60%との間で、35%と40%との間、または56%と59%との間の相対湿度を有することを特徴とする請求項47記載のデバイス。
- 該デバイスが0.015ppm未満のオゾンを生成することを特徴とする請求項1記載のデバイス。
- 該デバイスが1時間当たり1ppmのPHPGを生成する請求項1記載のデバイス。
- a. その表面上に触媒を有する通気性基材構造;および
b. 光源
を含む、加熱、換気および空調(HVAC)システムに取付けられた場合の非水和精製過酸化水素ガス(PHPG)を生成するためのデバイスであって、
空気がHVACシステムから該通気性基材構造を通って流れ、該デバイスがPHPGを生成し、作動中に、加熱、換気および空調された空間にある場合に、その表面上に触媒を有する該通気性基材構造から離れてPHPGを誘導することを特徴とする該デバイス。 - 該光源が、紫外線源である請求項51記載のデバイス。
- 該気流が少なくとも14°である該基材構造に対する入射角を含む請求項51記載のデバイス。
- 該気流が、68°と90°との間にある入射角を含む請求項53記載のデバイス。
- 該入射角が90°である請求項53記載のデバイス。
- 該気流が少なくとも20%の湿度を有する空気を含む請求項51記載のデバイス。
- 該 HVACシステムが、さらに加湿器を含む請求項56記載のデバイス。
- 該通気性基材構造が750nm未満である請求項51記載のデバイス。
- 該通気性基材構造の厚さが、100nmと200nmとの間にある請求項58記載のデバイス。
- 該通気性基材構造が、20%と60%との間の開口面積のパーセンテージを有するメッシュである請求項51記載のデバイス。
- 該光源が190nmと460nmとの間にある波長を含む紫外線である請求項51記載のデバイス。
- 該紫外線が187nm未満の波長を含まないことを特徴とする請求項61記載のデバイス。
- さらに、188nm以下の波長を有する紫外線光を遮断するフィルターを含む請求項51記載のデバイス。
- さらに、該HVACシステムが、窒素酸化物(NOx)、硫黄酸化物 (SOx)、揮発性有機分子 (VOM)、家庭のほこり、花粉、イエダニ残屑、カビ胞子、ペットの鱗屑、煙、スモッグおよび細菌よりなる群から選択される、該通気性基材構造を通って流れることに先立ち該気流からの1以上の汚染物質を除去するための1以上のフィルターを含むことを特徴とする請求項51記載のデバイス。
- 1以上の該フィルターが、有機蒸気フィルター、微粒子フィルター、高性能フィルター、疎水性フィルター、活性炭フィルターまたはそれらの組合せである請求項64記載のデバイス。
- 該汚染物質が、一酸化窒素(NO)、二酸化窒素(NO2)、一酸化硫黄、二酸化硫黄、ホルムアルデヒド、アセトアルデヒド、トルエン、プロパノールまたはブテンを含む請求項64記載のデバイス。
- 1以上の該フィルターが、サイズが0.3ミクロンと10ミクロンとの間の粒子を捕捉することができる微粒子フィルターを含む請求項64記載のデバイス。
- 1以上の該フィルターがゼオライトを含む請求項64記載のデバイス。
- 該気流が、5ナノメートル/秒(nm/s)〜10,000nm/sの流速で該通気性基材構造を通って流れることを特徴とする請求項51記載のデバイス。
- 該空気が、1秒未満の該触媒表面上の滞留時間を有する請求項51記載のデバイス。
- 該触媒が、二酸化チタン、銅、酸化銅、亜鉛、酸化亜鉛、鉄、酸化鉄、タングステン、三酸化タングステンおよびそれらの混合物よりなる群から選択される金属または金属酸化物触媒である請求項51記載のデバイス。
- 該金属または金属酸化物触媒が、さらに助触媒を含む請求項71記載のデバイス。
- 該助触媒が、プラチナ、銀、金、ニッケル、パラジウム、二酸化チタンセラミックおよび押出成形セラミックよりなる群から選択される請求項72記載のデバイス。
- 該デバイスが0.015ppm未満のオゾンを生成することを特徴とする請求項51記載のデバイス。
- 該デバイスが1時間当たり1ppmのPHPGを生成する請求項51記載のデバイス。
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