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Why does the diameter of distillation column vary at different location?
Wiki User
∙ 15y ago
A distillation column has flows of materials going up and down the plates or packing. The flow across each plate or section of packing is an essential factor in the optimization calculations and design. Diameter is one of these considerations.
Since columns have "heavies" traveling down and "lights" moving up and the division between these components may not be even, the top and bottom flows may be quite different, and the optimal column diameter must be adjusted at different locations along the length. Add to this the introduction of a feed stream at some point in the mid-column and the flows are altered again.
But why be concerned about this? Columns are often constructed of expensive alloys, glass lined, or heat treated to avoid erosion, corrosion or stress problems. Minimizing the column size minimizes the cost. Along with quality of product, cost is an optimization factor.
Wiki User
∙ 15y ago
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What is a batch distilation column?
This is a distillation column that doesn't have a continuous feed. The material that is to be distilled will typically be in a round bottom still at the end of the column.
How does operating pressure affect distillation?
Pressure is an important part in distillation because boiling points of different components to be separated depends on pressure, for normal distillation pressure is kept as 1 atmosphere but for components with high boiling points instead of rasing the temperature pressure is lowered till the vapor pressure of the components to be separated, hence the temperature to be raised becomes less, for example in vaccum distillation.
What is distillation column?
This type of column is used by ephedrine manufacturer. Please refer Kreps biochemical & industries, Nellore, Andhra pradesh, India.
How weeping avoid in distillation column?
Limiting the hole area to 13-14% prevents weeping in distillation columns. This may be limited by the allowable pressure drop specified for the column (too little leads vendors to specify a higher % hole area, thus causing weeping).
What is the purpose of Reflux in an oil refinery?
The reflux is the return of top product condensate from a distillation column back to the top of the column where it is able to flow down the column aiding with cooling and thus condensation in the column. It increases efficiency and enables a lower amount of theoretical plates to be used in the column.
What is an enriching section in a distillation column?
It is the top section of the distillation column. The section where the vapour leaves the column to the condenser.
What is the best fractionating column for ethanol distillation using lab glass?
distillation column
Why maintain distillation column and distillation drum pressure?
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When you use the direct distillation?
Distillation is used to separate liquids with different boiling points. A distillation column consists of let's say trays at different temperatures, and in these trays, the lighter and more volatile components evaporate, leaving the heavier component(s).
What is the name of the process that separates crude oil into more useful substances?
Crude oil is separated by fractional distillation. The components of crude oil are separated by a process which is known as fractional distillation. Crude oil is made of different components whose sizes, weights and boiling temperatures are different from each other. When the crude oil is heated with high pressure steam at a high temperature, it boils and forms vapour. The vapour enters a fractional distillation column and settled in the trays of the column. The trays have holes in them which raise the contact time among the vapour and liquids. The vapour rises in the column and cools, the hotter substances settle at the bottom of the column and the cooler substances rise to the top of the column. The substances in the vapour condense and the fractions of liquid collect in the tray and pass to condensers and storage tanks.
What is fractionation column used for?
The fractionation column is used to separate components of a liquid by distillation.
What is fractional distillation of crude oil?
Distillation is the process of heating a mixture of things with different boiling points and then condensing out the product you want. Fractional distillation is the term used when distilling a mix of a number of different things that you desire in a purer form; by knowing the boiling point of each of the different substances yo desire, and by controlling the temperature of the column carefully , you can tap into the rising vapors and select each product by temperature which correlates to the height of the column.
What is a fractionating column?
This is an installation used for separation by distillation.
What is the effect of column temperature on resolution?
Different substances have different boiling points. Distillation is the chemical process created to take advantage of this property. Cooling one side, the top of the column and applying a heat source to the bottom ensures lighter or more volatile substances accumulated at the top end of the column, assuming there is a constant flow with relative constant composition feeding the Distillation column, and an accumulation of less volatile material in the bottom.
Fractional distillation and the impact on the environment?
Fractional distillation it is separating mixtures via their boiling points. Fractional distillation is done by adding some sort of material into the column that the vapor travels before being cooled and condensed while. Since the fractional distillation means the separation of a mixture into different componenets.Suppose the raw material entering into the distillation column contains many fraction(for example,if a crude oil is entering,it contains gases,gasoline,kerosene etc). if a distillation is done for such a material.this will be the fractional distillation.Because in a distillation column you will separate different components present in the crude Check the related question below to know more.
What is the condensed gas taken from a distillation column called?
The distillate.
One column of water has twice the diameter as another column of water. If the pressure is the same at the bottom of each column. How do the heights of the two columns compare?
The column with the smallest diameter has greater pressure and the column with a larger diameter has less pressure.
