Unit Operations of Particulate Solids: Theory and Practice, 1st Edition (Paperback) book cover

Unit Operations of Particulate Solids

Theory and Practice, 1st Edition

By Enrique Ortega-Rivas

CRC Press

492 pages | 175 B/W Illus.

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Description

Suitable for practicing engineers and engineers in training, Unit Operations of Particulate Solids: Theory and Practice presents the unit operations in chemical engineering that involve the handling and processing of particulate solids.

The first part of the book analyzes primary and secondary properties of particles and particulate systems, focusing on their characterization and the effects on selection and design of silos and conveyors. Covering the main industrial operations of dry solids processing, the second part offers insight into the operation principles of the most important technologies that handle dry solids in bulk. With an emphasis on two-phase and multiphase flow, the final part describes all of the relevant systems in industrial processes that combine two different components of the state of matter as well as technologies for separating phases by purely mechanical means.

Through clear explanations of theoretical principles and practical laboratory exercises, this book provides an understanding of the behavior of powders and pulverized systems. It also helps readers develop skills for operating, optimizing, and innovating particle processing technologies and machinery in order to carry out industrial operations, such as centrifugation, filtration, and membrane separations.

Table of Contents

CHARACTERIZATION OF PARTICULATE SYSTEMS AND RELATION TO STORAGE AND CONVEYING

Introduction

Definitions of unit operations

Powder and particle technology

The solid state: main distinctive properties

Bulk Solids: Properties and Characterization

Introductory aspects

Classification of powders

Sampling

Failure properties

Laboratory exercise: determination of some failure properties of powders

Particle size analysis

Laboratory exercise: particle size analysis by different methods

Storage and Conveying of Bulk Solids

Introduction: storage alternatives

Outdoors storage

Confined storage

Laboratory exercise: evaluation of wall loads in silos

Bulk solids conveying

Laboratory exercise: pneumatic conveying characteristics of different granules

BULK SOLIDS PROCESSING

Size Reduction

Fundamental principles of comminution

Energy requirements in comminution

Size reduction equipment

Criteria for selecting size reduction processes

Laboratory exercise: determination of reduction relations using a hammer mill

Size Enlargement

Introduction: agglomeration processes

Aggregation fundamentals: strength of agglomerates

Agglomeration methods

Selection criteria for agglomeration methods

Design aspects of agglomeration processes

Applications

Laboratory exercise: comparing methods for tumbling agglomeration of powders

Mixing

Introduction

Blending mechanisms

Statistical approach of mixing processes

Mixing equipment

Design and selection factors

Laboratory exercise: determination of blending indices for different tumbling mixers

Fluidization

Theoretical fundamentals

Fluidized regimes

Applications of fluidization

Laboratory exercise: fluidized-bed coating of food particulates

SEPARATION TECHNIQUES FOR PARTICULATE SOLIDS

Introductory Aspects

Different mixtures relevant in industry

Classification of separation techniques

Specific techniques for granular materials

Solid Mixtures

Screening

Electromagnetic separation

Electrostatic separation

Laboratory exercise: efficiency of separation on single-stage screening

Solid–Fluid Systems

Introduction: simultaneous flow of fluids and solids

Separation efficiency

Solid–gas separations

Solid–liquid separation techniques

Appendix 1: International (SI) System of Units

Appendix 2: Density and Viscosity of Water at Different Temperatures and 101.325 kPa

Appendix 3: Density and Viscosity of Air at Different Temperatures and 101.325 kPa

Appendix 4: Dimensional Analysis

Appendix 5: Standard Screen Scales

Appendix 6: Guidelines for the Preparation of Laboratory Reports

Appendix 7: Notation

Index

References appear at the end of each chapter.

About the Author

Enrique Ortega-Rivas is a professor at the Autonomous University of Chihuahua. He is a member of the editorial boards of Food and Bioprocess Technology: An International Journal, Food Engineering Reviews, and The Open Food Science Journal. A National Researcher of Mexico, Dr. Ortega-Rivas was a Fulbright scholar and has held positions at Food Science Australia, Monash University, and Washington State University. His research interests include food engineering, particle technology, and solid–fluid separation techniques.

Subject Categories

BISAC Subject Codes/Headings:
SCI013060
SCIENCE / Chemistry / Industrial & Technical
TEC012000
TECHNOLOGY & ENGINEERING / Food Science