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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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Patent
25 Sep 1967
TL;DR: In this article, a process for minimizing hydrogen losses in a high pressure hydrogen contacting system wherein an effluent liquid leaves a contact zone with hydrogen in the presence of less volatile contaminating gases comprises flashing the effluent fluid to yield flashed vapours and returning the recompressed vapours to the contact zone.
Abstract: A process for minimizing hydrogen losses in a high pressure hydrogen contacting system wherein an effluent liquid leaves a contact zone with hydrogen in the presence of less volatile contaminating gases comprises flashing the effluent liquid to yield flashed vapours and returning the recompressed vapours to the contact zone. As applied to a hydrocracking process, vapour from the reactor 26 is taken to absorber 60 in which it is contacted with an oil which absorbs light hydrocarbons, hydrogen sulphide and some hydrogen. The enriched oil is fed to a first flash drum 74 at 1250 p.s.i.g.; vapour from this, containing hydrogen, is recycled to the reactor, and the liquid goes to second flash drum 78 at 20 to 60 p.s.i.g.; vapour from this is used as fuel gas and the liquid is recycled to the absorber. Vapours not absorbed in the absorption tower, mostly hydrogen, are also recycled to the reactor.

9 citations

Journal ArticleDOI
TL;DR: In this article, the authors describe the condensation of the vapours of organic liquids in the presence of dust-free air, and show that it is possible to obtain the same properties as that of water.
Abstract: (1902). XXXI. Condensation of the vapours of organic liquids in presence of dust-free air. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 3, No. 15, pp. 305-310.

9 citations

Journal ArticleDOI
13 Jun 2013
TL;DR: The results show that the electrical resistance of the sensors increases when exposed to solvent vapours, and the effect of Teflon-like coating on the sensitivity yield is presented and discussed.
Abstract: In this paper a study of chemiresistor sensors based on Single Wall Carbon Nanotube films deposited at low temperature by means of a spray technique is presented. A nanodispersion of nanotube powder in a non-polar 1,2-Dichloroethane solvent was used as starting solution. Electron Microscopy in Scanning and Transmission mode were used in order to verify the morphological properties of the deposited films. Conductivity of single walled carbon nanotubes (SWNTs) were measured in various organic solvent vapours environments. The solvents used are characterized by different polarities and volume fractions of saturated vapours defined by the vapour pressure. The results show that the electrical resistance of the sensors increases when exposed to solvent vapours. Finally the effect of Teflon-like coating on the sensitivity yield is presented and discussed.

9 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202337
202276
202112
202025
201914
201818