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Naphtha
| Глоссарий по добыче и переработке нефти |
- Нафта. устаревшее название нефти. в настоящее время применяется для обозначения фракции нефти с точкой кипения ниже 250oc (лигроин, тяжелый бензин)
- A distillate of petroleum or coal; generally has low solvency and high volatility; used as a solvent in paints and varnishes.
- A very inflammable, fiercely burning fluid, which oozes from the ground or rock in many different localities, and may be obtained by the distillation of coal, cannel, and other substances. it is nearly related to petroleum (which see), and is used for lighting, combustible, and various other purposes.
- Generic term describing a variety of light petroleum distillates such as mineral spirits and many petroleum solvents.
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Нафталин, русский
, бесцветные кристаллы, tпл 80,3 °с. содержится в каменноугольной смоле и нефти. важное сырье химической промышленности: применяется для синтеза многих органических красителей, фталевого ангидрида, тетралина, декалина, разнообразных производных нафталина.
Лигроин, русский
, смесь углеводородов, получаемая дистилляцией нефти или газовых конденсатов. выкипает в пределах 120-240 °с. плотность 0,78-0,79 г/см3. компонент товарных бензинов, осветительных керосинов и реактивных топлив; растворитель, наполнитель жидкостных приборов.
Нафта, русский
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Обозначения, русский
Distillate, английский
Volatility, английский
- The degree of price fluctuation for a given asset, rate, or index; usually expressed as a variance or standard deviation.
- A statistical measure of the tendency of a market price or yield to vary over time.
- Волатильность, относительная скорость, с которой цена перемещается вверх и вниз; мера степени изменений рыночной стоимости ценных бумаг, определяемая за период в 52 недели (12 месяцев) и измеряемая в процентах. для того чтобы измерить волатильность, нужно
- This property describes the degree and rate at which a liquid will vaporize under given conditions of temperature and pressure. when liquid stability changes, this property is often reduced in value.
- Относительная скорость, с которой цена перемещается вверх и вниз. вычисляется годовое среднеквадратичное отклонение ежедневного изменения цены.
- Property of having a low boiling point or temperature of sublimation at normal pressure. likewise, having a high vapor pressure at ambient conditions.
- A measure of risk based on the standard deviation of the asset return. volatility is a variable that appears in option pricing formulas, where it denotes the volatility of the underlying asset return from now to the expiration of the option. there are volatility indexes. such as a scale of 1-9; a higher rating means higher risk.
- Нестабильность
- Describes how easily a substance will vaporize (turn into a gas or vapor).
- The property of a liquid that defines its evaporation characteristics. of two liquids, the more volatile will boil at a lower temperature and will evaporate faster when both liquids are at the same temperature. the volatility of petroleum products can be evaluated by tests for flash point, vapor pressure, distillation and evaporation rate.
Inflammable, английский
- Воспламеняемый
- Easily ignited. because it is frequently mistaken for a negative (i.e., non-flammable) this term has been generally replaced by “flammable.”
- Огнеопасный
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.
Combustible, французский
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.
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Natural gas liquids, ngl, английский
Газоконденсатные жидкости, гкж. жидкие углеводороды, получаемые из природного газа. включают конденсат и сжиженные нефтяные газы
Mutually exclusive projects, английский
Взаимоисключающие проекты. реализация одного из таких проектов делает невозможной реализацию другого. см. independent projects
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