supercritical water

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• Supercritical water oxidation — or SCWO is a process that occurs in water at temperatures and pressures above a mixture s thermodynamic critical point. Under these conditions water becomes a fluid with unique properties that can be used to advantage in the destruction of… …   Wikipedia

• Supercritical water reactor — The Supercritical water reactor (SCWR) is a Generation IV reactor concept that uses supercritical water as the working fluid. SCWRs are basically LWRs operating at higher pressure and temperatures with a direct, once through cycle. As most… …   Wikipedia

• Supercritical — may refer to:* Critical mass, the smallest amount of fissile material needed for a sustained nuclear chain reaction * Critical temperature, Tc, the temperature above which distinct liquid and gas phases do not exist * Supercritical fluid, a… …   Wikipedia

• Supercritical drying — (red arrow) goes beyond the critical point of the working fluid in order to avoid the direct liquid–gas transition seen in ordinary drying (green arrow) or the two phase changes in freeze drying (blue arrow). Supercritical drying is a process to… …   Wikipedia

• Supercritical fluid — A supercritical fluid is any substance at a temperature and pressure above its thermodynamic critical point. It can diffuse through solids like a gas, and dissolve materials like a liquid. Additionally, close to the critical point, small changes… …   Wikipedia

• water — waterer, n. waterless, adj. waterlessly, adv. waterlessness, n. waterlike, adj. /waw teuhr, wot euhr/, n. 1. a transparent, odorless, tasteless liquid, a compound of hydrogen and oxygen, H2O, freezing at 32°F or 0°C and boiling at 212°F or 100°C …   Universalium

• Water — This article is about general aspects of water. For a detailed discussion of its properties, see Properties of water. For other uses, see Water (disambiguation) …   Wikipedia

• Supercritical fluid extraction — (SFE) is the process of separating one component (the extractant) from another (the matrix) using supercritical fluids as the extracting solvent. Extraction is usually from a solid matrix, but can also be from liquids. SFE can be used as a sample …   Wikipedia

• Supercritical carbon dioxide — Carbon dioxide pressure temperature phase diagram Supercritical carbon dioxide is a fluid state of carbon dioxide where it is held at or above its critical temperature and critical pressure. Carbon dioxide usually behaves as a gas in air at STP… …   Wikipedia

• Water (molecule) — Chembox new Name = Water (H2O) ImageFileL1 = Water 2D labelled.png ImageSizeL1 = 120px ImageNameL1 = The water molecule has this basic geometric structure ImageFileR1 = Water molecule 3D.svg ImageSizeR1 = 100px ImageNameR1 = Space filling model… …   Wikipedia

• supercritical fluid — noun A substance at a temperature and pressure above its own thermodynamic critical point that can diffuse through solids like a gas and dissolve materials like a liquid. The most commonly used supercritical fluids are carbon dioxide and …   Wiktionary