Topic
Vapours
About: Vapours is a research topic. Over the lifetime, 1153 publications have been published within this topic receiving 15022 citations.
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TL;DR: In this paper, a three-parameter isotherm equation to describe multilayer adsorption of vapours on nonporous adsorbants is derived, where the model parameters are the monolayer adorption capacity (m) and two temp...
Abstract: A new three-parameter isotherm equation to describe multilayer adsorption of vapours on non-porous adsorbants is derived. The model parameters are the monolayer adsorption capacity (m) and two temp...
10 citations
TL;DR: A novel sensor for acetic acid vapour determination is proposed, based on a piezoelectric crystal covered with a film of diethylenetriamine, which has major advantages over other existing techniques are its simplicity, reduced cost and capacity for use in situ.
10 citations
01 Jan 2004
TL;DR: In this article, the response of screen-printed thick-films of NiO/TiO/sub 2/ to organic solvent vapours was studied and it was found that these films displayed a significant resistance change in response to the vapours even at room temperature.
Abstract: The response of screen-printed thick-films of NiO/TiO/sub 2/ to organic solvent vapours was studied. It was found that these films displayed a significant resistance change in response to the vapours even at room temperature. The sensors displayed an inherent selectivity, proving most sensitive to toluene and propanol vapour; with comparatively low responses exhibited towards ethanol and methanol vapours. Very fast response and recovery times of 9 s and 16 s respectively were recorded for the devices upon exposure to 4000 ppm step changes in propanol concentration.
10 citations
TL;DR: In this paper, an experimental procedure was described for measuring sorption equilibria between polymers and condensable vapours at temperatures above 40°C by headspace gas chromatography.
10 citations
Patent•
10 Jul 1990
TL;DR: The use of a body made of porous sintered metal, at least some of which may be contained in the catalytically active constituents, results not only in greater strength, which is structurally advantageous, but also in improved operation.
Abstract: Permeable porous body for treating gases and/or vapours and/or liquids and process for manufacturing it. To date, porous ceramic bodies have been used in catalysts and filters for treating gases, vapours or liquids, for example exhaust gases from internal combustion engines. These ceramic bodies are sensitive to shocks and, because of the poor thermal conductivity of the ceramic material, are prone to thermal decomposition due to overheating during combustion of the soot deposits. The use of a body made of porous sintered metal, at least some of which may be contained in the catalytically active constituents, results not only in greater strength, which is structurally advantageous, but also in improved operation. The body has a higher thermal conductivity than ceramic material, for example when used as a soot filter, which promotes earlier ignition and hence more uniform combustion of the soot deposits.
10 citations