Get this from a library! Unit operations of chemical engineering.. [Warren L McCabe; Julian C Smith; Peter Harriott]. Unit Operations of Chemical Engineering 7th edition continues its lengthy Authors Warren McCabe, Julian Smith and Peter Harriott. Julian C. Smith Emeritus Professor of Chemical Engineering Comel! University Unit operations of chemical engineering / Warren 1. McCabe. Juiian C. Smitll.

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Unit Operations of Chemical Engineering, 7th edition continues its lengthy, successful tradition of being one of Separate chapters are devoted to each of the principle unit operations, grouped into four sections: Rent and save from the world's largest eBookstore. WARREN L AUTOR MCCABE,JULIAN C AUTOR SMITH. Rent and save from the world's largest eBookstore. Read, highlight Unit Operations of Chemical Engineering. Front Cover. Warren Lee McCabe, Julian Cleveland Smith, Peter Harriott. McGraw-Hill, - Chemical engineering - pages. 3 Reviews as inappropriate. Good book for all chemical engineering students. Read and Download Ebook BOOK Unit Operations In Chemical Engineering PDF. BOOK Unit McCabe, Julian C. Smith, Peter Harriott. PDF File: BOOK Unit .

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Unit operations of chemical engineering.

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View all editions and formats. Chemical processes. Julian C. The chemical engineer must develop, design, and engineer both the complete process and the equipment used; choose the proper raw materials; operate the plants efficiently, safely, and economically; and see to it that products meet the requirements set by the customers.

Chemical engineering is both an art and a science. Whenever science helps the engineer to solve a problem, science should be used.


When, as is usually the case, science does not give a complete answer, it is necessary to use experience and judgment. The professional stature of an engineer depends on skill in utilizing all sources of information to reach practical solutions to processing problems. The variety of processes and industries that call for the services of chemical engineers is enormous. Products of concern to chemical engineers range from commodity chemicals like sulfuric acid and chlorine to high-technology items like polymeric lithographic supports for the electronics industry, high-strength composite materials, and genetically modified biochemical agents.

The processes described in standard treatises on chemical technology and the process industries give a good idea of the field of chemical engineering, as does the report on the profession by the National Research Council! The field is divided into convenient, but arbitrary, sectors.

This text covers that portion of chemical engineering known as the unit operations. For example, in most processes solids and fluids must be moved; heat or other forms of energy must be transferred from one substance to another; and tasks like drying, size reduction, distillation, and evaporation must be performed.

The unit-operation concept is this: by studying systematically these operations themselves-operations that clearly cross industry and process lines-the treatment of all processes is unified and simplified. The strictly chemical aspects of processing are studied in a companion area of chemical engineering called reaction kinetics.

The unit operations are largely used to conduct the primarily physical steps of preparing the reactants, separating and purifying the products, recycling unconverted reactants, and controlling the energy transfer into or out of the chemical reactor.

The unit operations are as applicable to many physical processes as to chemical ones. For example, the process used to manufacture common salt consists of the following sequence of the unit operations: transportation of solids and liquids, transfer of heat, evaporation, crystallization, drying, and screening.

No chemical reaction appears in these steps. On the other hand, the cracking of petroleum, with or without the aid of a catalyst, is a typical chemical reaction conducted on an enormous scale. Here the unit operations-transportation of fluids and solids, distillation, and various mechanical separations-are vital, and the cracking reaction could not be utilized without them. The chemical steps themselves are conducted by controlling the flow of material and energy to and from the reaction zone.

Because the unit operations are a branch of engineering, they are based on both science and experience.

Theory and practice must combine to yield designs for equipment that can be fabricated, assembled, operated, and maintained.

A balanced discussion of each operation requires that theory and equipment be considered together. An objective of this book is to present such a balanced treatment.

Chemical Engineering

A number of scientific principles and techniques are basic to the treatment of the unit operations. Their general use is described in the remainder of this chapter.

Other special techniques important in chemical engineering are considered at the proper places in the text. Strong efforts are underway for its universal adoption as the exclusive system for all engineering and science, but older systems, particularly the centimeter-gram-second cgs and foot-pound-second fps engineering gravitational systems, are still in use and probably will be around for some time.

The chemical engineer finds many physiochemical data given in cgs units; that many calculations are most conveniently made in fps units; and that SI units are increasingly encountered in science and engineering. It exists where the science of learning meets the art of teaching.


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View all editions and formats. The senior author, Or. Finding libraries that hold this item Subjects Chemical processes. The standard of mass is the kilogram kg , defined as the mass of the international kilogram, a platinum cylinder preserved at Sevres, France.

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