Abstract:
The present invention provides a reactor system comprising: —one or more purification zones comprising an absorbent which comprises silver, an alkali or alkaline earth metal, and a support material having a surface area of more than 20 m2/g, and —a reaction zone comprising a catalyst, which reaction zone is positioned downstream from the one or more purification zones; an absorbent; a process for reacting a feed comprising one or more feed components; and a process for preparing a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine.
Abstract:
NO2 may be removed from a carbon dioxide feed gas comprising NOx and at least one “non-condensable” gas as contaminants by passing the feed gas at a first elevated pressure through a first adsorption system that selectively adsorbs at least NO2 to produce at least substantially NO2-free carbon dioxide gas. The adsorption system is at least partially regenerated using a carbon dioxide-rich gas recovered from the substantially NO2-free carbon dioxide gas after purification. The invention has particular application in removing NOx and water from flue gas generated by oxyfuel combustion.
Abstract:
An odor filtration media having a chemical reagent which removes odor causing fluid contaminants from a fluid stream through the use of granular or shaped media have a chemical composition including permanganate is provided. A method of producing the odor absorbing media having a chemical reagent is also provided and comprises the steps of mixing H2O, KMnO4, and at least one salt adding ions or ionic compounds selected from the group consisting of Na+, Li+, K+, NH4+, Cl−, SO42−, BO32−, CO32−, PO43−, NO3− and combinations thereof, or from the group consisting of Na+, Li+, K+, NH4+, Mg2+, Ca2+, Cl−, BO32−, NO3− and combinations thereof, forming an impregnating solution. The impregnating solution is heated and combined with a support material to form a coherent mass.
Abstract:
A procedure for obtaining mixed multimetallic oxides derived from hydrotalcite type compounds, characterized in that the laminar metallic hydroxides obtained are constituted by three or four metallic cations, forming part of the sheets of the hydrotalcite type material represented by the formula: [M(II)1−x−y−zM(II)′xM(III)yM(III)′z(OH)2](An−y+z/n).mH2O. by a process comprising: (1) preparing an aqueous or organic solution containing three or more cations; (2) preparing an alkaline solution; (3) slowly combining solutions (1) and (2) to cause the co-precipitation of the cations in the form of hydroxides; (4) washing the precipitate containing the hydrotalcites with water, until removal of the non-precipitated ions; (5) drying; and (6) calcining the hydrotalcites.
Abstract:
Methods and apparatus relate to treating fluid to at least reduce selenium content within the fluid, which may be an aqueous liquid and form a feed stream. The treating removes selenium that may be present in compounds, such as selenocyanate, from the feed stream based on adsorption from contact of the fluid with a sorbent. Flowing a gaseous hydrogen sulfide and sulfur dioxide containing stream over a support, such as activated carbon, may provide the sorbent impregnated with sulfur and utilized in the treating of the fluid.
Abstract:
A dishwasher is provided, which has a washing container; an air-guiding channel to generate an air flow; and a sorption drying system to dry items to be washed, wherein the sorption drying system has a sorption container with reversibly dehydratable sorption material. The sorption container is connected to the washing container by the air-guiding channel and the reversibly dehydratable sorption material is one of a granular solid and a granulate with an average fill density of at least 500 kg/m3.
Abstract translation:提供洗碗机,其具有洗涤容器; 用于产生空气流的空气引导通道; 以及用于干燥待洗涤物品的吸附干燥系统,其中吸附干燥系统具有可逆脱水吸附材料的吸附容器。 吸附容器通过空气引导通道连接到洗涤容器,可逆脱水吸附材料是颗粒状固体和平均填充密度至少为500kg / m 3的颗粒之一。
Abstract:
The present invention relates to a component for producing vacuum insulation systems, comprising at least one insulation layer which is surrounded by a casing, wherein the gas pressure in the insulation layer can be reduced by means provided in the component, wherein the means for reducing the gas pressure is embodified as activatable. The present invention further describes a vacuum insulation system comprising a component according to the invention.
Abstract:
A catalyst is provided comprising nickel in a reduced valence state on a carrier comprising zinc oxide and alumina, wherein the Zn:Ni atomic ratio is at least 12, and the catalyst particles are prepared by: mixing zinc oxide in the form of a powder and alumina or an alumina precursor in the form of a powder; peptising the powder mixture and forming an extrudable dough by adding acid and water to the powder mixture in such amounts that the dough contains 0.8-1.2 moles acid equivalents per kg powder; extruding the extrudable dough to form extrudates; drying and calcining the extrudates; impregnating the extrudates with an aqueous solution of a nickel compound; drying, calcining and reducing the impregnated extrudates. Further provided is a process for desulphurisation of a hydrocarbonaceous feedstock using such catalyst.
Abstract:
A process and device to capture of CO2 at its originating source, such as a power plant, is disclosed. Absorbent material is recharged by desorbing CO2, so that it may be sequestered or used in another application. Continual recharging results in loss of absorbent surface area, due to pore plugging and sintering of particles. Calcium oxide or calcium hydroxide was immobilized to a fibrous ceramic-based fabric substrate as a thin film and sintered, creating an absorbent material. The samples were characterized, showing continuous cyclic carbonation conversions between about 62% and 75% under mild calcination conditions at 750° C. and no CO2 in N2. Under the more severe calcination condition at 850° C. and 20 wt % CO2 in N2, yttria fabric was superior to alumina as a substrate for carbon dioxide capture and the reactivity of the calcium oxide absorbent immobilized to yttria was maintained at the same level in the 12 cycles.
Abstract:
Systems and methods are disclosed that promote the remediation of contaminated materials that are produced during industrial processes. These systems and methods include heating a material, transferring heat from the material to an industrial process. During this transfer, contaminants may be introduced into the material. These methods may remove the contaminant by treating the material with a surface modified nanoceramic through nanofiltration and/or active sites adsorption/reaction. The surface modified nanoceramic may remove at least part of the contaminant in the material. No cooling required prior to removing the contaminant from the material, which can lead to great energy saving and pollution reduction.