M.Sc.

In this work, it was attempted to estimate the mass a) and study the dynamic behavior of continuous stirred tank fermenter (CSTF) by means of Matlab language and benefit from commands and functions,which are built in Matlab.transfer coefficient (kL The present work developed a mathematical model for production of biomass as a single cell protein (SCP) by treating backer yeast (biomass) with glucose (substrate 1) and oxygen (substrate 2) as an example for CSTF and used in simulation n programs.

     Ethyl tert-butyl ether (ETBE) is primarily used for the production of high octane number gasoline. It is produced by reaction of ethanol (ETOH) and tert-butanol (TBA)over an acidic catalyst where water is also produced as a by-product, using reactive distillation unit which can be considered as reaction and distillation combined into one unit operation.The present work concerned with studying the behavior of batch reactive packed distillation column to produce ETBE experimentally and theoretically.

          Three cases of heat transfer enhancement by turbulence promoters were adopted in order to increase the thermal performance of a double pipe heat exchanger of 1245 mm effective length, 28 mm outer diameter and changeable  inner diameter (11 or 14 mm). Wire coils of 1 mm diameter and 10, 20, 30 and 40 mm coiling pitches were used as turbulence promoters to augment heart transfer inside the inner tube of heat exchanger at a Reynolds number range of 5000 to 40000 based on smooth tube diameter.