| Sample flowsheets | ||
file |
description | requires |
| HDA (HydroDeAlkylation) | ||
 HDA.fsd (177 KB)
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This case study is a modified version of the 1967 American Institute of Chemical Engineers student contest problem for the dealkylation of toluene to benzene with hydrogen, see "Conceptual Design of Chemical Processes", McGrawHill,
1988, or J.M Douglas, AIChE J., Vol. 31 (1985) p. 353. It features a gas phase reaction with gas recycle as well as a separation train with a recycle of unreacted toluene. preview... |
COFE, COUSCOUS, ChemSep, TEA, CORN |
| Cavett-problem | ||
|
Cavett.fsd (106 KB)
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R.H. Cavett (Cavett, R. H., 'Application of Numerical Methods to the Convergence of Simulated Processes Involving
Recycle Loops', American Petroleum Institute, 43, 57, 1963) devised a now famous problem to test tearing,
sequencing and convergence procedures of flowsheet simulation programs. The flowsheet is equivalent to a
four theoretical stage near isothermal distillation (rather than a conventional near isobaric type).
preview... |
COFE, COUSCOUS, TEA |
| Extractive distillation of MethylCycloHexane/Toluene | ||
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CScasebook_MCHT.fsd (96 KB)
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We need to separate an equimolar mixture of methylcyclohexane (MCH) and toluene (T), and do so by extractive distillation
with phenol (P) as the solvent. The process involves two Chemsep LITE distillation columns, a heat
exchanger, and a make-up stream. The phenol recycle is cooled to 100 °C. For
a high purity of the products the solvent feed to MCH/toluene feed ratio as well as the reflux ratio needs to be sufficiently
high (for the extractive column). We need the make-up unit to regulate the amount of phenol in the feed to the first
column.
preview... |
COFE, ChemSep, COUSCOUS, TEA |
| Pressure swing azeotropic distillation of Methanol and Acetone | ||
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CScasebook_MA.fsd (85 KB)
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Methanol and acetone form a minimum temperature azeotrope but the composition of this azeotrope is sensitive to the
pressure. We can make use of this to separate the two components into pure products by operating two columns at
different pressures.
preview... |
COFE, ChemSep, COUSCOUS, TEA |
| 3-compound flash | ||
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Flash-CosmoThermLite.fsd (35 KB)
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This is a simple Flash calculation with three alcohols (methanol, ethanol and iso-propanol), where
activity coefficients are computed by the COSMOthermCO model by means of a CAPE-OPEN property
calculation routine inside a TEA property package.
preview... |
COFE, CosmoTherm, COUSCOUS, TEA |
| controlling conversion by manipulating PFR length | ||
|
controller.fsd (60 KB)
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This example measures reactant flow at the inlet and outlet of a PFR reactor. The measurements are used to
calculate the reactant's conversion. A controller is used to modify the reactors length to obtain a specified
conversion. The example demonstrates use of a reaction package, measuring units, an information calculator and a controller. It also demonstrates the use of embedded reports and reactor profile graphs. preview... |
COFE, COUSCOUS, TEA |
