Abstract:
The present invention relates to the field of air cleaning, and specifically discloses an air freshener composition. The air freshener composition comprises component A and component B, wherein a weight ratio of the component A to the component B is 1: 0.5-3; the component A comprises, in parts by weight, 10-30 parts by weight of an active agent; 6-15 parts by weight of a carrier; 1-4 parts by weight of a pH regulator; and 0.01-0.2 part by weight of an antioxidant; the component B is a plant extract solution, wherein the plant extract solution comprises at least, in parts by weight: 5-30 parts by weight of an extract of a mixture of Populus nigra var. italica, grapefruit peels and eucalyptus leaves; 0.1-5 parts by weight of Sophora flavescens extract; 1-3 parts by weight of Aloe vera extract; 1-10 parts by weight of fresh orange peel extract; 0.5-3 parts by weight of Nandina domestica extract; 0.5-10 parts by weight of Eucalyptus robusta Smith extract; 1-8 parts by weight of Robinia pseudoacacia L. extract; 1-5 parts by weight of Chrysanthemum morifolium extract; and 0.1-2 parts by weight of artemisinin.
Abstract:
The present invention provides a method for efficiently and simply achieving decontamination of organic compounds, in particular, gaseous organic compounds diffused in the atmosphere, by carrying out an in-situ treatment under in-situ environmental conditions. The method involves exposing organic compounds to a processing gas at normal temperature, thereby achieving decontamination, in which the processing gas includes a hydroxylmethyl radical, a hydroperoxy radical, a hydrogen radical, and a hydroxyl radical which are generated by allowing a catalyst to act on methanol gas.
Abstract:
Bromine-containing compounds (10), added to the coal (16), or to the boiler combustion furnace (14), are used to enhance the oxidation of mercury, thereby enhancing the overall removal of mercury in downstream pollution control devices. The method is applicable to utility power plants equipped with wet FGD systems, as well as those plants equipped with spray dryer absorber FGD systems.
Abstract:
A high capacity filtration media, method of preparing the media, and method of treating a fluid stream with the media are provided. The media contain a porous substrate impregnated with high concentrations of a permanganate. Preferably, the media includes a porous substrate impregnated with at least about 8% permanganate by weight. The media can optionally contain sodium bicarbonate. Improved capacity for the removal of undesirable compounds such as ethylene, formaldehyde, hydrogen sulfide and methyl mercaptan are achieved.
Abstract:
Chlorine (11) and sulfide (1) species are separately introduced to a flue gas (2) passing through a scrubber (12) in order to remove the elemental and oxidized mercury from the gas through the precipitation of mercuric sulfide at near 100% efficiency.
Abstract:
A chemisorptive filter e.g. activated alumina or carbon, is held in a chamber (16) between two webs of expanded metal mesh (5, 6) provided with angled perforations. The webs are rigidified in the direction of air flow (4) by a central post joining them. This filter is provided with prefiltering by a mechanical filter layer (19), e.g. polyester polyurethane foam and a layer with both electret and electrostatic activity (21). The chamber (16) may be provided with a window so that any colour change indicative of the remaining capacity of the chemisorptive material can be seen.
Abstract:
L'invention concerne un ensemble filtre à gaz qui, dans le mode de réalisation préféré, comprend une ou des feuille(s) de tissu imprégné de carbone, perméable, enroulable et flexible qui sont enroulées en spirales autour d'une structure centrale. Des éléments d'espacement actifs filtrant les gaz peuvent éventuellement être utilisés, entre les couches contiguës de tissu enroulé pour séparer physiquement lesdites couches, créant ainsi un ou des passage(s) d'air. En outre ces éléments d'espacement actifs stimulent l'agitation de l'air et les différentiels de pression. Le passage de l'air peut avoir plusieurs configurations: un flux vers l'extérieur perpendiculaire ou traversant les couches de tissu filtrant, un flux passant à travers les éléments d'espacement actifs, un flux parallèle aux surfaces de tissu filtrant et aux éléments d'espacement actifs, et ces configurations peuvent être combinées de différentes façons et être reproduites de façon répétée dans toute la chambre de filtrage des gaz. Chaque élément d'espacement contient un ou plusieurs types, parmi toute une variété, d'agents filtrants, lesdits éléments étant utilisés de façon combinée dans l'ensemble filtre pour permettre de filtrer efficacement un groupe divers de gaz contaminants. Dans un mode de réalisation, une structure collectrice centrale utilise des ailettes d'amenée d'air qui facilitent la fixation du tissu. Les ailettes d'amenée d'air forment des entrées pour les canaux de filtrage et constituent un support structural pour lesdits canaux. Les ailettes d'amenée d'air sont placées de façon stratégique autour d'un rotor central brassant l'air et qui expulse l'air à travers les ailettes d'amenée d'air, l'air pénétrant ensuite dans les canaux de filtrage. Grâce à cette entrée directe de l'air, on a une résistance minimale à l'écoulement de l'air.
Abstract:
The present disclosure relates to a system for removing a pollutant from a power generation cycle that utilizes a high pressure circulating fluid. The system includes a first direct contact cooling tower configured to cool the high pressure circulating fluid and condense a fluid stream that removes SO2 from the circulating fluid. A first recirculating pump fluidly communicates with the first direct contact cooling tower. The first tower includes an outlet configured to circulate a cooled CO2 product stream, and a second direct contact cooling tower is configured to receive at least a portion of the cooled CO2 product stream from the outlet. The second direct contact cooling tower is configured to cool the CO2 product stream and condense a fluid stream that removes NOx from the CO2 product stream. A second recirculating pump fluidly communicates with the second tower. An associated method is provided.