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Essentially, the distilled water produced for Egypt was made in a special apparatus with various forms of condenser employed. The principle for distillation is the same as the apparatus on steamships. On ships, steam is generated in one of the ships boilers then condensed, filtered and aerated in the apparatus.
A simple short path vacuum distillation apparatus can be used for bulb-to-bulb distillation. 1: Still pot with stirrer bar/anti-bumping granules 2: Cold finger - Condenser with maximum surface to condense most of the vapour. 3: Cooling water outlet 4: cooling water inlet 5: Vacuum Adapter 6: Receiving Flask.
Distillation setup using a retort and tube condenser, from a 1921 book. [5] The simplest type of condenser is a straight tube, cooled only by the surrounding air. The tube is held in a vertical or oblique position, and the vapor is fed through the upper end. The heat of condensation is carried away by convection.
The distillation system for boiler feedwater at this time was usually termed an evaporator, partly to distinguish it from a separate system or distiller used for drinking water. Separate systems were often used, especially in early systems, owing to the problem of contamination from oily lubricants in the feedwater system and because of the ...
2: round-bottom flask containing the mixture to be boiled 3: the head of the still 4: mixture boiling-point thermometer 5: the condenser of the still 6: the cooling-water inlet of the condenser 7: the cooling-water outlet of the condenser 8: the distillate-receiving flask 9: vacuum pump and gas inlet 10: the receiver of the still
A glass tube carrying vapors from a distillation flask passed through the inner tin tube. Weigel subsequently replaced the inner tin tube with a glass tube, and he devised a clamp to hold the condenser. [7] However, an anonymous pamphlet published in 1781 claimed that a countercurrent condenser had been conceived in 1770 and tested in 1773. [8]
The condenser of this column requires refrigeration which is obtained from expanding the more oxygen rich stream further across a valve or through an expander (a reverse compressor). Alternatively the condenser may be cooled by interchanging heat with a reboiler in a low pressure (LP) distillation column (operating at 1.2-1.3 bar abs.) when the ...
Figure 1: Fractional distillation apparatus using a Liebig condenser. Vigreux column in a laboratory setup. A laboratory fractionating column is a piece of glassware used to separate vaporized mixtures of liquid compounds with close volatility.