Read e-book online Conceptual Design of Chemical Processes PDF

By James M. Douglas

ISBN-10: 0070177627

ISBN-13: 9780070177628

This article explains the ideas in the back of procedure layout. It makes use of a case examine procedure, guiding readers via sensible layout difficulties, and referring again to those instances on the finish of every bankruptcy. all through, the writer makes use of shortcut strategies that permit engineers to procure the complete concentration for a layout in a truly brief interval (generally below days).

Show description

Read or Download Conceptual Design of Chemical Processes PDF

Similar chemical engineering books

Download PDF by Walter S. Brainerd: Green Chemical Reactions

Eco-friendly Chemistry is a creative technological know-how in keeping with basic learn in the direction of the advance of latest sustainable chemical procedures. there's a nice have to create a brand new kind of chemistry all for a brand new construction approach, to be able to organize the more youthful iteration to get a greener destiny. The globalization pushes the chemistry group to undertake moral concerns.

Get A Guide to Safe Material and Chemical Handling PDF

There were many volumes written that declare to be the main "comprehensive" compendium or guide on chemical facts. those wieldy volumes are usually too sizeable and extraneous to be helpful to the working towards engineer. This new quantity goals to be the main important "go to" quantity for the operating engineer, scientist, or chemist who wishes quickly solutions to day-by-day questions on fabrics or chemical substances and does not are looking to move on lengthy searches via voluminous tomes or long net searches.

James Blake Rawlings's Chemical Reactor Analysis and Design Fundamentals PDF

This can be a chemical engineering textbook for undergraduate and graduate scholars in reactor layout and response engineering classes.

Extra info for Conceptual Design of Chemical Processes

Example text

This steady-state flux is approached even though the concentrations in the upper and lower compartments are changing with time. The approximations introduced by this assumption will be considered later. In this pseudosteady state, the flux across the diaphragm is that given for membrane diffusion: ! Á DH À C1;lower À C1;upper j1 ¼ l Here, the quantity H includes the fraction of the diaphragm’s area that is available for diffusion. We next write an overall mass balance on the adjacent compartments: Vlower dC1,lower ¼ ÀAj1 dt Vupper dC1,upper ¼ þAj1 dt where A is the diaphragm’s area.

The analysis used here will be accurate when (Mills, Woolf, and Watts, 1968)   2 l =Deff 1 1 1) þ ¼ Vdiaphragm Vlower Vupper 1=ðbDeff Þ voids This type of ‘‘pseudosteady-state approximation’’ is common and underlies most mass transfer coefficients discussed later in this book. The examples in this section show that diffusion across thin films can be difficult to understand. The difficulty does not derive from mathematical complexity; the calculation is easy and essentially unchanged. The simplicity of the mathematics is the reason why diffusion across thin films tends to be discussed superficially in mathematically oriented books.

Solution In this case, you are concerned with the diffusion of odor across the thin plastic film. The diffusion rate is well described by either mass transfer or diffusion coefficients. However, the diffusion model explicitly isolates the effect of the solubility of the smell in the film, which dominates the transport. 2). In this case, the search was illegal. 3-9: Scale-up of wet scrubbers You want to use a wet scrubber to remove sulfur oxides from the flue gas of a large power plant. A wet scrubber is essentially a large piece of pipe set on its end and filled with inert ceramic material.

Download PDF sample

Conceptual Design of Chemical Processes by James M. Douglas

by Thomas

Rated 4.32 of 5 – based on 21 votes

Author: admin