摘要:
The present invention relates to a metal hydride device having a variable transparency, comprising a substrate, at least one layer including a photochromic yttrium hydride having a chosen band gap, and a capping layer at least partially positioned on the opposite side of the photochromic yttrium hydride layer from the substrate, said capping layer being essentially impermeable to hydrogen and oxygen.
摘要:
Embodiments provide a gas distribution arrangement, a device for handling a chemical reaction comprising such a gas distribution arrangement and a method of providing a chemical reaction chamber with a gas. The distribution arrangement comprises a distribution plate for separating a chemical reaction chamber from a gas inlet area and having a first side arranged to face the chemical reaction chamber and a second side arranged to face the gas inlet area and comprising a set of through holes stretching between the first and the second side, where the first side of the plate comprises a first material surrounding the holes and having a first thermal conductivity, and the plate also comprises a second material forming a base structure also surrounding the holes and having a second thermal conductivity.
摘要:
A device including a surface layer of a selected material in a predetermined pattern on a substrate surface. A groove or ridge arranged in the substrate surface includes a bottom or top face, respectively, and at least one side face sloping relative to the bottom or top face. The surface layer is deposited on a part of the substrate including the groove or ridge by vacuum chamber sputtering the selected material from a sputtering source while moving the substrate past the sputtering source in a direction substantially perpendicular to a sputtering main lobe direction and with a normal to the substrate surface substantially in a predefined angle with the main lobe direction. By uniformly etching away surface layer material deposited on the substrate by the sputtering until freeing a substantial part of the side face, the predetermined pattern becomes defined substantially by the bottom face or the top face.
摘要:
Embodiments provide a gas distribution arrangement, a device for handling a chemical reaction comprising such a gas distribution arrangement and a method of providing a chemical reaction chamber with a gas. The distribution arrangement comprises a distribution plate for separating a chemical reaction chamber from a gas inlet area and having a first side arranged to face the chemical reaction chamber and a second side arranged to face the gas inlet area and comprising a set of through holes stretching between the first and the second side, where the first side of the plate comprises a first material surrounding the holes and having a first thermal conductivity, and the plate also comprises a second material forming a base structure also surrounding the holes and having a second thermal conductivity.
摘要:
The invention relates to a material for reversible hydrogen storage comprising a complex hydride based on one or more anions selected among BH4−, MgH3−, MH4− and MH63− (M=Al, Ga, In), and one or more cations, where the material has obtained amended stability due to substitution of the complex hydride phase itself.The invention also relates to a process for preparation of the material and use thereof, and a process for reversible hydrogen storage.
摘要:
A particulate, heterogeneous solid CO2 absorbent composition, comprising decomposition products of Ca3Al2O6 after having been heated to a temperature between 500° C. and 925° C. in the presence of H2O and CO2 for a period of time sufficient to allow the Ca3Al2O6 to react and form the particulate, heterogeneous absorbent composition which exhibits a higher concentration of aluminium than calcium in the particle core but a higher concentration of calcium than aluminium at the particle surface. The invention also comprises a method for preparing the particulate, heterogeneous product as well as a method for utilizing the composition for separating CO2 from a process gas.
摘要翻译:在H 2 O和CO 2存在下,将Ca 3 Al 2 O 6的分解产物加热到500℃至925℃之间的温度下,Ca 3 Al 2 O 6反应的时间足以使Ca 3 Al 2 O 6反应 并且形成颗粒状非均相吸收剂组合物,其在颗粒芯中表现出比钙更高的铝浓度,但在颗粒表面具有比铝高的钙浓度。 本发明还包括一种制备颗粒状非均质产品的方法以及一种利用该组合物从工艺气体中分离CO 2的方法。
摘要:
A virtual sensor system and method for the estimation of an amount or concentration of particulate matter resulting from natural or man made processes comprising two or more empirical models arranged for being trained using empirical data from the processes, for receiving one or more signal input values from one or more sensors of the processes and calculating a signal output value based on the signal input values where the signal output value represents an intermediate amount or concentration of particulate matter. Further a combination function is arranged for receiving the signal output values and continuously calculating the amount or concentration of PM.
摘要:
In a method of condensing an unprocessed well stream from an offshore gas or gas condensate field the well stream taken from one or more wellheads is cooled and directly expanded, isentropically, or near isentropically, to a state in which the pressure is close to that of a storage tank. Part of the well stream is condensed and condensed fractions thereof is drawn off the expander and fed to the storage tank along with condensation products from the exit of the expander. Hence, without any preprocessing, a condensed well stream product is produced which comprises a mixture of liquids and solids which is collected in the storage tank for transport therefrom to land. A system for carrying out the method is also disclosed. The invention makes the condensation of an unprocessed well stream possible without any preprocessing thereof, such as extraction of solid particles, e.g. sands, removal of water, cleaning or drying. Thus, by means of the invention smaller gas or gas condensate fields can be developed in a more cost efficient way.
摘要:
Method for industrial manufacture of pure MgCO3 comprising providing an olivine containing species of rock, to comminute the olivine containing species of rock to increase its surface, to contact the comminuted olivine containing species of rock with water and CO2. The process is conducted in at least two steps, namely a first step (R1) at a first pH where a dissolving reacting as represented by the equation: Mg2SiO4(S)+4H+=2Mg2++SiO2(aq)+2H2O, takes place. Then a precipitation takes place in the second step (R2) at a higher pH as represented by the equations: Mg2++HCO3−=MgCO3(S)+H+, and Mg2++CO32−=MgCO3(S), the presence of HCO3− and H+ ions mainly provided by the reaction between CO2 and water.
摘要:
The present invention relates to a superconductive rare-earth metal oxyhydride material and a method for producing the material. The method comprising the steps of: —first the formation on a substrate of a layer of an oxygen free rare-earth metal hydride with a predetermined thickness using a physical vapor deposition process; and —second exposing the rare-earth metal hydride layer to oxidative agent for oxidation where the oxygen reacts with the rare-earth metal hydride that results with obtaining rare-earth metal oxyhydride, the oxidation being below a predetermined limit defined by a measured transparency being less than 10%.