摘要:
The invention provides a gas filtration apparatus comprising a filter for filtering a gaseous pollutant from a gas to be filtered, the filter comprising filter walls impregnated with an impregnant. The impregnant may be provided by impregnating with an impregnant composition e.g. comprising: x % w/w Potassium bicarbonate (KHCO 3 ); y % w/w Potassium formate (KCHO 2 ); z % w/w tris-hydroxymethyl-aminomethane; water; wherein 4 ≤ x ≤ 8 and 4 ≤ y ≤ 8 and 10 ≤ z ≤ 36-x-y.
摘要:
Die Erfindung betrifft ein. Verfahren zur Reinigung von sulfid- und ggf. kohlenwasserstoffhaltigen Abluftgemischen, mit den Schritten: Führen des Abluftgemischs durch mindestens ein chemisch-biologisches Reaktivfilter mit: porösen Gerüstmaterialteilchen mit anorganisch gebundenen natürlichen Fasern und pH-Wert pufferndem Stützmaterial, mindestens einer Eisenverbindung, sulfatoklastischen und ggf. kohlenwasserstoffabbauenden Organismen, Additiven; und Abziehen des im mindestens einen Reaktivfilter gereinigten Abluftstroms aus dem chemisch-biologisch wirksamen Reaktivfilter sowie die Ve.endung eines biologischen Reaktivfiltermaterials mit einem mit sulfoklastischen und ggf. kohlenwasserstoffabbauenden Organismen besiedelten Gerüstmaterial zur Reinigung von sulfid- und/oder kohlenwasserstoffhaltiger Abluft, wie Biogas, Hydrolysegas, Deponiegas, Kläranlagengasen Faulgas, Pyrolysegas Holzgas, Gase aus Kompostieranlagen, Grubengas, Minengas, Gase aus Geothermie- und Tiefbohrungen; Synthesegas, Erdölbegleitgasen, Erdgas, Sauergas, Leangas; Produktionsabgase der Pharmazie- und Lebensmittelindustrie, wie die Abluft von Ölmühlen.
摘要:
Air filters formed from mats of protein-containing nanowires are provided. The nanowires are formed into a mat with pores that allow air to pass through while physically filtering particulate matter. The protein in the protein-containing nanowires also serves to chemically filter polluted air passed through the filter. Specifically, chemical functional groups from the many amino acids that comprise the protein of the protein-containing nanowire react with certain chemical pollutants (e.g., carbon monoxide and formaldehyde) in order to capture or otherwise neutralize the pollutant. Accordingly, the single nanofiber mat performs two filtering functions. Methods of filtering air using the provided air filters are also disclosed, as well as methods for making the air filters from protein-containing nanofibers.
摘要:
Produit adsorbant les composés COV (150) comportant de l'acétoacétamide, produit caractérisé en ce qu'il est composé de granulés de charbon actif (100) revêtus d'acétoacétamide cristallisé (13) à la surface des granulés laissant libres les pores des canaux (10) du corps caverneux constitués par les granulés de charbon actif; procédé pour la production d'un tel produit
摘要:
Amorphous aluminosilicates are disclosed, and these amorphous aluminosilicates are characterized by a unique combination of high surface area, low oil absorption, and a significant fraction of the total pore volume resulting from micropores. These amorphous aluminosilicates can be used in various paint and coating applications, with the resultant dried or solid film capable of removing VOC's from the surrounding air.
摘要:
A filter contains fluent particulate, such as carbon granules. The filter is divided into a plurality of cell chambers by walls, including an upper wall. The upper wall has a surface that faces, and is closest to, the top surface of the particles. The upper wall surface is oriented so that, as the particles settle, any gap formed between the top surface of the particles and a portion of the upper wall surface will not extend from the upstream to the downstream sides of the filter. Instead, contact is maintained between the top surface of the particles and the upper wall surface during fluid flow through the filter, and therefore any gas flowing through the frame must flow through, and through spaces around, particles. An angle between the upper wall surface and the flow direction of gas striking the filter is greater than about three degrees.
摘要:
The present invention relates to a reefer container for transporting and storing a plurality of produce at a predetermined temperature, the produce generating ethylene and other organic compounds during transport and storage, said reefer container comprising a substantially closed room having an atmosphere, a cooling device for maintaining the room at the predetermined temperature, and an atmosphere-controlling system (14) for controlling the atmosphere in the room of the reefer container, the atmosphere-controlling system comprising a system inlet (161) and a system outlet (162), a flow direction (165) of an airstream being defined between the system inlet and the system outlet, a fan (160) arranged at the system outlet, an ethylene reduction unit (100) for reducing a content of ethylene of the atmosphere in the room, a catalyst unit (150) arranged downstream the ethylene reduction unit, the catalyst unit being adapted to reduce a content of ozone generated during the reduction of ethylene, the catalyst unit having a catalyst inlet (153), a catalyst outlet (154) and a catalyst midsection (155) arranged substantially between the catalyst inlet and catalyst outlet, and a control unit (200), wherein a first measuring point (103) is arranged upstream the catalyst inlet and a second measuring point (151) is arranged at the catalyst midsection, the first measuring point and the second measuring point being connected with at least a first ozone sensor (170) so that via the first measuring point a first ozone concentration (C1) of the air before the air enters the catalyst unit can be measured, and via the second measuring point a second ozone concentration (C2) of the air present in the catalyst midsection of the catalyst unit can be measured, the first ozone sensor being connected with the control unit, and wherein the first ozone concentration (C1) is compared to the second ozone concentration (C2) in the control unit in order to calculate the expected ozone concentration of the air downstream the catalyst unit and the efficiency of the catalyst section. Further, the present invention relates to a method for measuring an ozone concentration in an airstream in a reefer container according to the present invention.