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Vacuum distillation
| Oil glossary |
A distillation method which involved reducing the pressure above a liquid mixture to be distilled to less than its vapor pressure (usually less than atmospheric pressure). this causes evaporation of the most volatile liquid(s) - those with the lowest boiling points. this method works on the principle that boiling occurs when a liquid`s vapor pressure exceeds the ambient pressure. it can be used with or without heating the solution.
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Вакуумная перегонка, русский
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Distillate, английский
Distillate fuel, английский
Fuel composed mainly of materials evaporated during the distillation of crude oil.
Distillate oil, английский
Distillates, английский
The lubricant and oil fractions produced in a distillation column, except for bottoms and the natural gas liquids at the top of the column-dividing head.
Distillatio [onis, f], латинский
Distillation, английский
- Перегонка
- A water purification process in which water is converted to a vapor by boiling it, and then reconverted to purified water by cooling the vapor. disc tumbler lock 316 the process of distillation distribution box
- The action of distilling a liquid
- One of the oldest methods of separating oils from flowers and still widely used. it is a heat-dependent process for separation and purification of a liquid mixture based on differences in vapor pressure of components of the mixture. in each case, the flowers or other sources of oil are changed into a still and heat is applied to separate the oil. one type involves direct contact between the plant material and boiling water. in another type, the heat source is steam that is blown through the flowers. the process involves vaporization of the more volatile component(s) and then condensation of the vapor back to a liquid. the water and oil are collected and as they separate, the oil is removed from the top.
Distillation (fractionation), английский
The first step in separating crude oil into its various components uses a distillation tower, or pipe still, through which heated crude oil vapors rise to progressively cooler levels, so that the various hydrocarbons condense at different levels all the way to the top of the column. the lower boiling point and lighter weight fractions rise to the top, the highest boiling point and heaviest condense near the bottom, all others in between. gases, light oils and fuels are drawn off at the top, while heavy products like heavy fuel oil and asphalt are drawn from the bottom, with other products in between. this step is conducted at atmospheric pressure. vacuum distillation, mainly for lube stocks, is performed with heavy crudes or bottoms at sub- atmospheric pressure, permitting fractionation at lower temperatures. the still is called a vacuum tower.
Distillation furnace, английский
Distillation method (astm d-95), английский
A method involving distilling the fluid sample in the presence of a solvent that is miscible in the sample but immiscible in water. the water distilled from the fluid is condensed and segregated in a specially-designed receiving tube or tray graduated to directly indicate the volume of water distilled.
Vacuum, английский
- Вакуум - ценовой интервал, в котором может быть идентифицирована общая нехватка интереса к покупке или продаже;
- Вакуум
- Вакуум v-cm visual countermeasures помехи визуальным средствам (наблюдения), средства ослепления (наблюдателей противника)
- A space which is completely empty of all matter, including air
- Вакуумцвакуумный
- A space utterly empty, even of air or vapour.
- Вакуум; разряжение
- The lower than atmospheric pressure that exists in the intake manifold when the engine is running. on most cars, engine vacuum is used to operate a variety of components and systems.
- Space that is at a pressure below atmospheric pressure.
Vacuum - pressure rolling, английский
Vacuum advance, английский
Mechanical
Vacuum assisted brake, английский
Hydraulic brake actuated or assisted by atmospheric pressure, usually through mechanical linkages. also air
Vacuum bagging, английский
Формование методом вакуумного мешка
Vacuum box, английский
Device used to create a differential pressure over an isolated area of a weld or of a pressure boundary that cannot be directly pressurized.
Vacuum box leak testing, английский
Technique of bubble testing where a vacuum box is used to create a pressure differential across a boundary. a viewing window allows observation of bubble formation within the solution film.
Vacuum brake, английский
See the brakes page.
Vacuum brazing, английский
Vacuum breaker, английский
A backflow preventer which prevents a vacuum in a water-supply system from causing backflow. of a window; may provide lighting in the upward and/or downward direction.
Vacuum breaker., английский
Vacuum cap gripper, английский
Захватное устройство с вакуумными присосками cm. suсtiоn griрреr - 31
Atmospheric, английский
Атмосферный -
Evaporation, английский
- Испарение
- The change of state of water from the liquid to vapor phase. requires the addition of 80 calories per cubic centimeter.
- Loss of vaporized water, solvent, etc., as from a paint film.
- The process of changing from a liquid to a vapor.
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Vacuum separator, английский
A separator that utilizes subatmospheric pressure to remove certain gases and liquids from another liquid because of their difference in vapor pressure.
Vacuum dehydration, английский
A method which involves drying or freeing of moisture through a vacuum process.
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