Light solvenl in VS .NET

Creator QR Code JIS X 0510 in VS .NET Light solvenl

Light solvenl
Decode Quick Response Code In .NET Framework
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in Visual Studio .NET applications.
QR Code Creation In .NET Framework
Using Barcode encoder for .NET Control to generate, create QR Code ISO/IEC18004 image in .NET applications.
FIG 12.8. Both liquid level and interface must be regulated in an extractor.
QR Code Reader In .NET Framework
Using Barcode recognizer for .NET Control to read, scan read, scan image in .NET applications.
Printing Barcode In .NET Framework
Using Barcode creation for VS .NET Control to generate, create bar code image in .NET applications.
1 Applications
Scan Barcode In Visual Studio .NET
Using Barcode scanner for .NET Control to read, scan read, scan image in VS .NET applications.
QR Creation In C#
Using Barcode maker for .NET Control to generate, create QR-Code image in VS .NET applications.
Heavy liquid
QR Code JIS X 0510 Maker In VS .NET
Using Barcode printer for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
Create QR Code In VB.NET
Using Barcode generation for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in Visual Studio .NET applications.
Light liquid
Bar Code Encoder In .NET
Using Barcode drawer for .NET framework Control to generate, create bar code image in Visual Studio .NET applications.
UCC.EAN - 128 Generator In .NET Framework
Using Barcode maker for Visual Studio .NET Control to generate, create GS1-128 image in VS .NET applications.
FIG 12.9. A properly designed decanter may function without controls.
Paint ANSI/AIM Code 128 In VS .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create Code128 image in Visual Studio .NET applications.
Bookland EAN Encoder In .NET Framework
Using Barcode printer for .NET framework Control to generate, create Bookland EAN image in VS .NET applications.
tom, both level and interface height must be regulated, but fortunately, in many cases this can be accomplished simply by proper equipment design. Figure 12.9 points out the dimensions which are important. The static differential pressure between the top of the light.liquid and the highest point in the underflow loop is zero. The vertical distance from the interface to each of these point,s is a function of the densities of the heavy and light liquids, designated p1 and ~2: Plhl =
Encoding Bar Code In Visual Studio .NET
Using Barcode encoder for Reporting Service Control to generate, create barcode image in Reporting Service applications.
Generating Bar Code In .NET
Using Barcode encoder for Reporting Service Control to generate, create bar code image in Reporting Service applications.
(12.29)
UPC Symbol Generator In Java
Using Barcode generator for Eclipse BIRT Control to generate, create UPC-A image in Eclipse BIRT applications.
Print Bar Code In Visual C#
Using Barcode creator for Visual Studio .NET Control to generate, create barcode image in Visual Studio .NET applications.
For finite flow rates of heavy liquid, hl will decrease, i.e., the interface will rise. This piping arrangement is not directly applicable to control of the extraction tower shown in Fig. 12.8, because of the variable pressure drop encountered in the packing and discharge line.
Scan Barcode In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
Recognize Code39 In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
Azeotropic Distillation
Barcode Printer In Java
Using Barcode maker for BIRT Control to generate, create bar code image in Eclipse BIRT applications.
GTIN - 13 Reader In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
An azeotrope is a mixture of two or more materials that cannot be separated by distillation; the vapor and liquid in equilibrium are of the same composition, and there is no difference bet ween the boiling point and the dew point of an azeotrope. The individual components may have entirely different boiling points, but their azeotropic mixture will exhibit a higher or lower boiling point t.han either, the latter being more common. Azeotropes act like pure substances. Ethanol and water form an azeotrope containing about 89 mole percent ethanol. Any mixture of ethanol and water containing more than 89 percent ethanol may be fractionated into ethanol and the azeotrope; a mixture containing less than 89 percent ethanol can be fractionated into water and the azeotrope. The composition of an azeotrope, and its boiling point at a given pressure, are characteristics peculiar to the system. Heterogeneous azeotropes separate into two immiscible layers of different composition when condensed. This is a considerable advantage, for it permits separation into the pure components by decantation, followed by a second distillation. Figure 12.10 shows that both columns use the
Other Mass Transfer Operations
Azeotrope
Feed
-Product A
- P r o d u c t
FIG 12.10. A heterogeneous azeotrope may be separated by two columns with a single condenser.
same condenser, since their vapors are both of the azeotropic composition. Steam-flow rates are the only variables which may be manipulated for composition control. Occasionally a binary azeotrope which is homogeneous can be broken by adding a third component which forms a ternary heterogeneous azeotrope. The third component is called an entrainer ; it is not intentionThe ally removed from the system, but circulates in the reflux loop. ternary azeotrope must boil at a lower temperat urc than the binary in
Homogeneous ozeotrope
Liqht product
FIG 12.11.
Top temperature is sensitive to inventory of entrainer.
Applications
order for the operation to be successful. Figure 12.11 shows the similarity of the process to separation of a binary heterogeneous azeotrope. Again, removal of the light component is directly proportional to the vapor flow, so heat input must be manipulated for bottoms-composition control. Although entrainer is intended to circulate continuously through the reflux loop, a certain amount will be lost. with t#he light component,. Because the entrainer is a third component, its inventory cannot be detected by liquid level. However, a deficiency of entrainer resulting in the loss of the ternary azeotrope will cause temperatures in the top of the tower t o rise. Therefore t op temperature can be used to manipulate its addition.
Extractive Distillation
Extractive distillation is a tjechnique used to break a homogeneous azeotrope or to facilitate separation of close-boiling components. A highboiling solvent with a particular affinity for one of the components is introduced to lower its vapor pressure. The other component is then readily distilled from the solution and a second column used to recover the solvent. The flow sheet, is given in Fig. 12.12. Since the role of the solvent is one of extraction, it must be set in ratio to the feed. Insufficient solvent will result in poor separation, whereas excess is not detrimental, except as it increases the heat load on the towers. Notwithstanding the extraction, however, material-balance control must still be maintained on the first tower. If too much distillate is withdrawn, it will necessarily be contaminated with solvent, extracted product, or
Copyright © OnBarcode.com . All rights reserved.