Coulson And Richardsons Chemical Engineering Particle Technology And Separation Processes 5th Edition J F Richardson J H Harker J R Backhurst by J. F. Richardson; J. H. Harker; J. R. Backhurst 9780750644457, 0750644451 instant download after payment.

The understanding of the design and construction of chemical plant is frequently regarded
as the essence of chemical engineering and it is this area which is covered in Volume 6
of this series. Starting from the original conception of the process by the chemist, it is
necessary to appreciate the chemical, physical and many of the engineering features in
order to develop the laboratory process to an industrial scale. This volume is concerned
mainly with the physical nature of the processes that take place in industrial units, and,
in particular, with determining the factors that influence the rate of transfer of material.
The basic principles underlying these operations, namely fluid dynamics, and heat and
mass transfer, are discussed in Volume 1, and it is the application of these principles that
forms the main part of Volume 2.
Throughout what are conveniently regarded as the process industries, there are many
physical operations that are common to a number of the individual industries, and may
be regarded as unit operations. Some of these operations involve particulate solids and
many of them are aimed at achieving a separation of the components of a mixture.
Thus, the separation of solids from a suspension by filtration, the separation of liquids
by distillation, and the removal of water by evaporation and drying are typical of such
operations. The problem of designing a distillation unit for the fermentation industry, the
petroleum industry or the organic chemical industry is, in principle, the same, and it is
mainly in the details of construction that the differences will occur. The concentration
of solutions by evaporation is again a typical operation that is basically similar in the
handling of sugar, or salt, or fruit juices, though there will be differences in the most
suitable arrangement. This form of classification has been used here, but the operations
involved have been grouped according to the mechanism of the transfer operation, so that
the operations involving solids in fluids are considered together and then the diffusion
processes of distillation, absorption and liquid-liquid extraction are taken in successive
chapters. In examining many of these unit operations, it is found that the rate of heat
transfer or the nature of the fluid flow is the governing feature. The transportation of a
solid or a fluid stream between processing units is another instance of the importance of
understanding fluid dynamics