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Distillation (other)
Distillation is a method of separating mixtures based on differences in their volatilities in a boiling liquid mixture. Distillation may also refer to: Chemistry * Azeotropic distillation * Batch distillation * Continuous distillation * Destructive distillation * Dry distillation * Entanglement distillation * Extractive distillation * Fractional distillation * Multi-stage flash distillation * Reactive distillation * Salt-effect distillation * Spinning band distillation * Steam distillation * Vacuum distillation Computer science * Distillation (machine learning) Environmental science * Global distillation, the process by which chemicals such as pollutants are transported from warmer to colder regions of the Earth Publications * ''Distillation Design ''Distillation Design'' is a book which provides complete coverage of the design of industrial distillation columns for the petroleum refining, chemical and petrochemical plants, natural gas processing, pharmaceutical, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distillation
Distillation, or classical distillation, is the process of separation process, separating the components or substances from a liquid mixture by using selective boiling and condensation, usually inside an apparatus known as a still. Dry distillation is the heating of solid materials to produce gaseous products (which may condense into liquids or solids); this may involve chemical changes such as destructive distillation or Cracking (chemistry), cracking. Distillation may result in essentially complete separation (resulting in nearly pure components), or it may be a partial separation that increases the concentration of selected components; in either case, the process exploits differences in the relative volatility of the mixture's components. In Chemical industry, industrial applications, distillation is a unit operation of practically universal importance, but is a physical separation process, not a chemical reaction. An installation used for distillation, especially of distilled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spinning Band Distillation
Spinning band distillation is a technique used to separate liquid mixtures which are similar in boiling points. When liquids with similar boiling points are distilled, the vapors are mixtures, and not pure compounds. Fractionating columns help separate the mixture by allowing the mixed vapors to cool, condense, and vaporize again in accordance with Raoult's law. With each condensation-vaporization cycles, the vapors are enriched in a certain component. A larger surface area allows more cycles, improving separation. Spinning band distillation takes this concept one step further by using a spinning helical band made of an inert material such as metal or Teflon to push the rising vapors and descending condensate to the sides of the column, coming into close contact with each other. This speeds up equilibration and provides for a greater number of condensation-vaporization cycles. Applications Spinning band distillation may sometimes be used to recycle waste solvents which contain dif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distillation (Wishbone Ash Album)
This is the complete discography of the rock band Wishbone Ash. Over the years they have released 24 studio albums, 12 live albums, 10 compilation albums and 20 singles. Albums Studio albums Other albums Live albums Compilation albums Singles * Note: "No Easy Road" was rerecorded in 1973 for the "Wishbone Four" album. The original single, recorded in 1972, is a different version. Tribute and cover albums References External linksOfficial discography of Wishbone Ash * {{Wishbone Ash Wishbone Ash
Wishbone Ash are a British rock band who a ...
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Distillation (Erin McKeown Album)
''Distillation'' is the second album by musician Erin McKeown. It was released via Signature Sounds Signature Sounds Recordings is an independent record label specializing in Americana and modern folk music. Jim Olsen and Mark Thayer founded the label in 1995 to promote acoustic musicians who were playing in Northampton, Massachusetts. Signatu ... in 2000. Track listing # "Queen Of Quiet" # "Blackbirds" # "Didn't They?" # "La Petite Mort" # "The Little Cowboy" # "Daisy And Prudence" # "Fast As I Can" # "You Mustn't Kick It Around" # "How To Open My Heart In 4 Easy Steps" # "Dirt Gardener" # "Love In 2 Parts" References Erin McKeown albums 2000 albums {{2000s-folk-rock-album-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distillations (magazine)
The Science History Institute is an institution that preserves and promotes understanding of the history of science. Located in Philadelphia, Pennsylvania, it includes a library, museum, archive, research center and conference center. It was founded in 1982 as a joint venture of the American Chemical Society and the University of Pennsylvania, as the Center for the History of Chemistry (CHOC). The American Institute of Chemical Engineers (AIChE) became a co-founder in 1984. It was renamed the Chemical Heritage Foundation (CHF) in 1992, and moved two years later to the institution's current location, 315 Chestnut Street in Old City, Philadelphia, Old City. On December 1, 2015, CHF merged with the Life Sciences Foundation, creating an organization that covers "the history of the life sciences and biotechnology together with the history of the chemical sciences and engineering." As of February 1, 2018, the organization was renamed the Science History Institute, to reflect its wide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distillation Design
''Distillation Design'' is a book which provides complete coverage of the design of industrial distillation columns for the petroleum refining, chemical and petrochemical plants, natural gas processing, pharmaceutical, food and alcohol distilling industries. It has been a classical chemical engineering textbook since it was first published in February 1992. The subjects covered in the book include: *''Vapor–liquid equilibrium(VLE)'': Vapor–liquid K values, relative volatilities, ideal and non-ideal systems, phase diagrams, calculating bubble points and dew points *''Key fractional distillation concepts'': theoretical stages, x-y diagrams, multicomponent distillation, column composition and temperature profiles *''Process design and optimization'': minimum reflux and minimum stages, optimum reflux, short-cut methods, feed entry location *''Rigorous calculation methods'': Bubble point method, sum rates method, numerical methods (Newton–Raphson technique), inside out metho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Distillation
Global distillation or the grasshopper effect is the geochemical process by which certain chemicals, most notably persistent organic pollutants (POPs), are transported from warmer to colder regions of the Earth, particularly the poles and mountain tops. Global distillation explains why relatively high concentrations of POPs have been found in the Arctic environment and in the bodies of animals and people who live there, even though most of the chemicals have not been used in the region in appreciable amounts. Mechanism The global distillation process can be understood using the same principles that explain distillations used to make liquor or purify chemicals in a laboratory. In these processes, a substance is vapourised at a relatively high temperature, and then the vapour travels to an area of lower temperature where it condenses. A similar phenomenon occurs on a global scale for certain chemicals. When these chemicals are released into the environment, some evaporates when a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distillation (machine Learning)
In machine learning, knowledge distillation is the process of transferring knowledge from a large model to a smaller one. While large models (such as very deep neural networks or ensembles of many models) have higher knowledge capacity than small models, this capacity might not be fully utilized. It can be just as computationally expensive to evaluate a model even if it utilizes little of its knowledge capacity. Knowledge distillation transfers knowledge from a large model to a smaller model without loss of validity. As smaller models are less expensive to evaluate, they can be deployed on less powerful hardware (such as a mobile device). Knowledge distillation has been successfully used in several applications of machine learning such as object detection, acoustic models, and natural language processing. Recently, it has also been introduced to graph neural networks applicable to non-grid data. Concept of distillation Transferring the knowledge from a large to a small mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacuum Distillation
Vacuum distillation is distillation performed under reduced pressure, which allows the purification of compounds not readily distilled at ambient pressures or simply to save time or energy. This technique separates compounds based on differences in their boiling points. This technique is used when the boiling point of the desired compound is difficult to achieve or will cause the compound to decompose. Reduced pressures decrease the boiling point of compounds. The reduction in boiling point can be calculated using a temperature-pressure nomograph using the Clausius–Clapeyron relation. Laboratory-scale applications Compounds with a boiling point lower than 150 °C typically are distilled at ambient pressure. For samples with high boiling points, short-path distillation apparatus is commonly employed. This technique is amply illustrated in Organic Synthesis. Rotary evaporation Rotary evaporation is a common technique used in laboratories to concentrate or isolate a compou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Distillation
Steam distillation is a separation process that consists in distilling water together with other volatile and non-volatile components. The steam from the boiling water carries the vapor of the volatiles to a condenser; both are cooled and return to the liquid or solid state, while the non-volatile residues remain behind in the boiling container. If, as is usually the case, the volatiles are not miscible with water, they will spontaneously form a distinct phase after condensation, allowing them to be separated by decantation or with a separatory funnel. Steam distillation can be used when the boiling point of the substance to be extracted is higher than that of water, and the starting material cannot be heated to that temperature because of decomposition or other unwanted reactions. It may also be useful when the amount of the desired substance is small compared to that of the non-volatile residues. It is often used to separate volatile essential oils from plant materi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt-effect Distillation
Salt-effect distillation is a method of extractive distillation in which a salt is dissolved in the mixture of liquids to be distilled. The salt acts as a separating agent by raising the relative volatility of the mixture and by breaking any azeotropes that may otherwise form. Setup The salt is fed into the distillation column at a steady rate by adding it to the reflux stream at the top of the column. It dissolves in the liquid phase, and since it is non- volatile, flows out with the heavier bottoms stream. The bottoms are partially or completely evaporated to recover the salt for reuse. Usage Extractive distillation is more costly than ordinary fractional distillation due to costs associated with the recovery of the separating agent. One advantage of salt-effect distillation over other types of azeotropic distillation is the potential for reduced costs associated with energy usage. In addition, the salt ions have a greater effect on the volatility of the mixture to be dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azeotropic Distillation
In chemistry, azeotropic distillation is any of a range of techniques used to break an azeotrope in distillation. In chemical engineering, ''azeotropic distillation'' usually refers to the specific technique of adding another component to generate a new, lower-boiling azeotrope that is heterogeneous (e.g. producing two, immiscible liquid phases), such as the example below with the addition of benzene to water and ethanol. This practice of adding an entrainer which forms a separate phase is a specific sub-set of (industrial) azeotropic distillation methods, or combination thereof. In some senses, adding an entrainer is similar to extractive distillation. Material separation agent The addition of a material separation agent, such as benzene to an ethanol/water mixture, changes the molecular interactions and eliminates the azeotrope. Added in the liquid phase, the new component can alter the activity coefficient of various compounds in different ways thus altering a mixture's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
