Image 1: Typical industrial distillation towersImage 2: A crude oil vacuum distillation column as used in oil refineries
Continuous distillation, a form of distillation, is an ongoing separation in which a mixture is continuously (without interruption) fed into the process and separated fractions are removed continuously as output streams. Distillation is the separation or partial separation of a liquid feed mixture into components or fractions by selective boiling (or evaporation) and condensation. The process produces at least two output fractions. These fractions include at least one volatile distillate fraction, which has boiled and been separately captured as a vapor condensed to a liquid, and practically always a bottoms (or residuum) fraction, which is the least volatile residue that has not been separately captured as a condensed vapor.
An alternative to continuous distillation is batch distillation, where the mixture is added to the unit at the start of the distillation, distillate fractions are taken out sequentially in time (one after another) during the distillation, and the remaining bottoms fraction is removed at the end. Because each of the distillate fractions are taken out at different times, only one distillate exit point (location) is needed for a batch distillation and the distillate can just be switched to a different receiver, a fraction-collecting container. Batch distillation is often used when smaller quantities are distilled. In a continuous distillation, each of the fraction streams is taken simultaneously throughout operation; therefore, a separate exit point is needed for each fraction. In practice when there are multiple distillate fractions, the distillate exit points are located at different heights on a fractionating column. The bottoms fraction can be taken from the bottom of the distillation column or unit, but is often taken from a reboiler connected to the bottom of the column.
Each fraction may contain one or more components (types of chemical compounds). When distilling crude oil or a similar feedstock, each fraction contains many components of similar volatility and other properties. Although it is possible to run a small-scale or laboratory continuous distillation, most often continuous distillation is used in a large-scale industrial process.
and 28 Related for: Continuous distillation information
Continuousdistillation, a form of distillation, is an ongoing separation in which a mixture is continuously (without interruption) fed into the process...
Distillation, also classical distillation, is the process of separating the component substances of a liquid mixture of two or more chemically discrete...
Fractional distillation is the separation of a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature...
before the distillation still is again charged with more mixture and the process is repeated. This is in contrast with continuousdistillation where the...
separation is a fractionating column. A continuous still can, as its name suggests, sustain a constant process of distillation. This, along with the ability to...
Vacuum distillation or distillation under reduced pressure is a type of distillation performed under reduced pressure, which allows the purification of...
provide more accurate studies of real systems. DistillationContinuousdistillation "Vacuum distillation is a key part of the petroleum refining process...
apparatus shown in the diagram represents a batch distillation as opposed to a continuousdistillation. The liquid feed mixture to be distilled is placed...
still, called either l'alambic à repasse or charentais Single continuousdistillation in a column still The usual arguments[by whom?] for and against...
mainly of wheat, corn and barley. The vodka is distilled twice in continuousdistillation, and the third time in a traditional pot. Copper is also used in...
dedicated to the production of the brandy. In 1818, a patent for a continuousdistillation alembic resulted in the main difference between Armagnac and Cognac...
spirit. In addition, because technically, continuousdistillation entails the conduct of a series of distillation runs in sequence internally within a self-contained...
usually produced in pot stills (batch distillation), but the column still can also be used for continuousdistillation. The distillate obtained in this manner...
compares with the simple chromatography technique like continuousdistillation does with batch distillation. Specifically, an SMB system has two or more identical...
Molecular distillation is a type of short-path vacuum distillation, characterized by an extremely low vacuum pressure, 0.01 torr or below, which is performed...
distinct distillation methods - a continuousdistillation process to remove congeners, creating the vodka's smoothness, and a batch distillation process...
in another Distillation is the purification of volatile substances by evaporation and condensation Batch distillationContinuousdistillation Fractional...
other distillation methods. Pot stills operate on a batch distillation basis (as contrasted with Coffey or column stills, which operate on a continuous basis)...
other units. See continuousdistillation. Vacuum distillation further distills the residue oil from the bottom of the crude oil distillation unit. The vacuum...
unit processes. The first unit operation in a refinery is the continuousdistillation of the petroleum crude oil being refined. The overhead liquid distillate...
Nurmijärvi. The grain (barley) alcohol is produced using 200-step continuousdistillation designed to produce high-purity industrial ethanol. The drink is...
food use and Vegetable oil refining for biofuel use) air glass Continuousdistillation Natural gas processing Refinery Wafer (electronics) Air separation...
which can be separated in a decanter. The simplest case of continuous heteroazeotropic distillation is the separation of a binary heterogeneous azeotropic...
for a long time in high-temperature applications (such as for continuousdistillation), the grease may eventually contaminate the chemicals. Also, reagents...
Global Information
