Chemical Engineering Practice

Minimize Enforcement Penalties

July
2001
Environmental Management
Jessica L. Idzerda
Identify possible New Source Review/Prevention of Significant Deterioration penalties by conducting an internal audit and disclosing potential violations.

Understanding Sealing Solutions

July
2009
Back To Basics
Jim Drago, Matt Tones
The right seal can help a plant save money, eliminate leaks, and avoid safety problems. Here’s how to select and install gaskets for effective sealing.

Test Your Incinerator Knowledge

February
2003
Environmental Management
Richard J. Martin
Do you feel like you're in the dark? Take this quiz to find out how much you know about thermal oxidizer selection and operation.

Correctly Calculate the Potential to Emit

December
2001
Environmental Management
Janet Scheier
Determining maximum capacity and ensuring that permit limits are federally enforceable are critical to calculating PTE.

Evaluating Chiller Performance

May
2003
Heat Transfer
Charles Churchman
Use these simple temperature and flow measurement techniques to evaluate chilled-utility performance and identify the most cost-effective upgrades.

Prepare Your Cooling System Before Startup

July
2012
Heat Transfer
Paul R. Puckorius
Pre-startup actions such as initial water treatment and equipment coatings in cooling tower water systems can increase system life expectancy and efficiency, and reduce corrosion and fouling.

Process Synthesis: Poised for a Wider Role

April
2001
On The Horizon
W. R. Johns
Software for generating process designs has made relatively limited inroads so far. But, it now is set to follow simulation and become a tool routinely used by chemical engineers.

Understanding Electromagnetic Flowmeters

May
2010
Instrumentation
Ronald W. DiGiacomo
Consisting of a flow tube, field-generating coils, electrodes, and a transmitter, a magmeter accurately measures the flowrate of conductive fluids over a wide range of conditions.

Virtualizing Your Process Control Computers

January
2012
Instrumentation
Paul Hodge
By employing the latest virtualization solutions for process control systems, chemical plants can reduce PC hardware requirements, simplify system management, and lower the total cost of ownership, as well as improve site availability, reliability,...

Converting a Commercial Distillation Column into a Research Tower

July
2005
Reactions and Separations
Ralph Weiland
Operating a column under actual distillation conditions is important for obtaining commercially valid hydraulic data. This article describes how a column was modified to operate in either a production or a research mode to collect hydraulic and mass...

Improving Reverse Osmosis Performance

September
2010
Reactions and Separations
Loraine Huchler
Follow these guidelines for monitoring, evaluating, and troubleshooting RO units to ensure reliable and efficient system operation.

Valves 101: Types, Materials, Selection

March
2009
Back To Basics
Brian Gordon
The most common valves used in chemical processing are ball valves, butterfly valves, diaphragm valves, and check valves.

Agitating Fibrous Materials

June
2010
Back To Basics
Gregory T. Benz
Slurry agitation involves complicated processes. This article presents guidelines for understanding the rheology of cellulosic and other fibrous materials, and outlines a method for scaling up their agitation.

Audit Your New EHS Software System

October
2004
Environmental Management
Jill Barson Gilbert
A post-implementation audit of the environmental, health and safety management information system evaluates how well the software meets user needs and its value to the organization.

Oxygen and Nitrogen: Onward and Upward

January
2009
News Feature
Suzanne Shelley
Innovative advances continue to benefit all three of today's air separation technologies, helping to reduce power consumption and capital costs, and, in turn, expand their markets.

Develop a Strategy for Residual Risk

January
2001
Environmental Management
Mary F. McDaniel
Understand the implications of the pending regulations to better address residual risk and to develop an effective communications plan.

Develop Effective Environmental Training

September
2001
Environmental Management
Peter J. Stoll
Computer-based environmental compliance training offers a number of advantages. This article discusses the benefits of computer-based training, outlines its most important components, and provides tips for structuring and writing a course.

Measuring Temperature by Direct Contact

September
2011
Back To Basics
Gary Freemer
Thermocouples and resistance temperature detectors are the most common contacting temp­erature sensors. Understand the techniques and apply them correctly to increase your temperature measurement accuracy.

Practical Process Control: Tuning and Troubleshooting

December, 2009
Practical Process Control (loop tuning and troubleshooting). This book differs from others on the market in several respects. First, the presentation is totally in the time domain (the word "LaPlace" is nowhere to be found). The focus of the book is actually troubleshooting, not tuning. If a...

Chemical Engineering Faculty Directory: 2009-2010

December, 2009
This faculty directory lists the contact information of all the faculty members, placement administrators, and student organizations of almost 500 worldwide universities and technical institutes offering chemical engineering curricula. This offers a comprehensive reference tool that is unique and...

Basic Process Measurements

June, 2009
A unique resource for process measurement Basic Process Measurements provides a unique resource explaining the industrial measuring devices that gauge such key variables as temperature, pressure, density, level, and flow. With an emphasis on the most commonly installed technologies, this guide...

Fluid Flow for the Practicing Chemical Engineer

June, 2009
This book teaches the fundamentals of fluid flow by including both theory and the applications of fluid flow in chemical engineering. It puts fluid flow in the context of other transport phenomena such as mass transfer and heat transfer, while covering the basics, from elementary flow mechanics to...

Thermodynamics for the Practicing Engineer

June, 2009
Thermodynamics for the Practicing Engineer, as the title suggests, is written for all practicing engineers and anyone studying to become one. Its focus therefore is on applications of thermodynamics, addressing both technical and pragmatic problems in the field. Readers are provided a solid base in...

Crystallization of Organic Compounds: An Industrial Perspective

May, 2009
Filled with industrial examples emphasizing the practical applications of crystallization methodologies Based on the authors' hands-on experiences as process engineers at Merck, Crystallization of Organic Compounds guides readers through the practical aspects of crystallization. It uses plenty of...

Chemical Engineering Faculty Directory: 2006-2007

February, 2007
This one of a kind directory conveniently lists the contact information for chemical engineering faculty members, department heads, academic advisors, student organization advisors, and placement officers at over 450 Universities worldwide. The directory's easy-to-use format lists chemical...

Chemical Engineering Faculty Directory: 2005-2006

January, 2006
This faculty directory lists the contact information of all the faculty members, placement administrators, and student organizations of almost 500 worldwide universities and technical institutes offering chemical engineering curricula.

Spray Dryers: A Guide to Performance Evaluation, 2nd Edition

August, 2004
Spray Dryers: A Guide to Performance Evaluation, Second Edition discusses the reasons for spray drying. These reasons are usually to produce a product with certain desired properties or with better efficiency than other methods. The book discusses how to plan in light of these objectives and gives...

AIChE Equipment Testing Procedure - Particle Size Classifiers, 2nd Edition

June, 1993
This procedure offers complete methodologies for sampling and measuring particle streams and summarizes methods of particle size analysis. It also lists operating variables to be considered and measured. Although the procedure is intended specifically for particle classification equipment, many of...

The Case for Double Mechanical Seals

June
2009
Back To Basics
Jack Berg
Using double mechanical seals as part of thermoplastic pumps can prevent costly downtime and environmental damage.

Optimize Energy Use in Distillation

March
2012
Reactions and Separations
Douglas C. White
Nonlinearities in the response of a column to changes in operating conditions and in common economic valuation functions can have significant impacts on the economic optimum energy consumption for the column. Here’s a way to account for such...

The Chemical Industry Phoenix

June
2012
Process Automation Corner
Terry McMahon
Seven years ago, I wrote a column for another publica­ tion entitled “The U.S. Chemical Industry: R.I.P.” This pillar of American economic strength, which a few years earlier was the leading exporter among U.S. manufac­turing sectors (with net exports of $15–20 billion annually), was shriveling due in large part to policy blunders and regula­tory mistakes.

Harness Electricity to Operate Valves

June
2012
Back To Basics
Justin Ledger
Actuators automate valves by converting an input signal into motion. This article explains the basics of electric actuator design and explores the different types of electric actuators.

Reduce Unplanned Shutdowns

September
2003
Instrumentation
Cindy Scott
Today's intelligent devices are equipped with modern alarm technology that enables speedy delivery of critical information to key personnel, thus enhancing efficiency and minimizing downtime.

Physical and Chemical Equilibrium for Chemical Engineers

April, 2012
This book concentrates on the topic of physical and chemical equilibrium. Using the simplest mathematics along with numerous numerical examples it accurately and rigorously covers physical and chemical equilibrium in depth and detail. It continues to cover the topics found in the first edition...

Optimize Mixing by Selecting the Proper Baffles

February
2002
Fluids and Solids Handling
Julian B. Fasano, Kevin J. Myers, Mark F. Reeder
It is common knowledge that baffles promote better flow in an agitated vessel, but how to apply them and what kind to use take some ingenuity.

Profiting From Your Pumping System

September
2003
Fluids and Solids Handling
Aimee McKane  , Vestal Tutterow,  Don Casada
Identify ways to minimize the lifecycle costs of your pumping system

Streamlining the Validation Process

March
2007
Management
Tim Flanigan, Robert Mackey
Today, validation is no longer an afterthought for the design and construction of a new or renovated process or facility. It is, in fact, recognized as an integral part of the total project. Fully integrated services are now available to ensure a...

Computational Science: Enabling Technology Development

January
2011
On The Horizon
Anthony Cugini, Wei Ge, Chris Guenther, Jinghai Li, Madhava Syamlal, Wei Wang, Ning Yang
Computational science will play a key role in accelerating technology development and in the realization of virtual process engineering.

Realize Greater Benefits from CFD

March
2001
Fluids and Solids Handling
Ahmad H. Haidari, Andre  Bakker,  Lanre M. Oshinowo
Computational fluid dynamics has moved from mainframes to PCs and laptops. Newer and better software lets you conduct analyses not possible before, and regular engineers, not just experts, can now carry out CFD.

Air Heater Cleaning Simplified

October
2001
Heat Transfer
Brad Buecker
This high-pressure water washing technique can be used to clean Ljungstrom-type air heaters.

Reduce Costs with Dividing-Wall Columns

May
2002
Reactions and Separations
Dennis O'Brien, Douglas A. Stewart, James W. Harris, Michael A. Schultz, Mohamed S.M. Shakur, Steven P. Rosenblum
These distillation columns can significantly reduce capital and energy expenses vs. conventional multicolumn arrangements.

Computationally Evaluate Self-Reactivity Hazards

February
2003
Reactions and Separations
Edward S. Shanley, Michelle R. Murphy, Surendra K. Singh
Here is a method that rates the tendency of new compounds to self-explode without the need to perform extensive laboratory tests.

Guidelines for Selecting Sterilizing-Grade Filters

March
2005
Fluids and Solids Handling
Philip Blosse, Monica Cardona
Determine if your bioprocess needs a sterilizing grade filter, and if so, use these guidelines to select the proper one for your application.

Selecting a Heat Exchanger Shell

June
2011
Back To Basics
Thomas G. Lestina, P.E.
The first step in specifying a shell-and-tube heat exchanger is choosing the right shell to meet process requirements.

Inhibiting and Monitoring Corrosion

March
2012
Heat Transfer
Gary Geiger, Mel J. Esmacher, P.E.
Understand corrosion and ways to control it, and implement these monitoring techniques to improve cooling water system efficiency and reliability and reduce energy consumption.

Uncovering the Realities of Simulation, Part 2

June
2001
Computational Methods
Andrew  Vieler, Marco S. Satyro, Rajeev  Agarwal, Yau-Kun Li,  Oscar  Santollani
Simulation software is a commonly used design tool, thanks mainly to its availability on the desktop. However, one has to understand thermodynamic basics before accepting the desktop's final answer.

Selecting Corrosion-Resistant Materials

December
2006
Materials
Marcello Picciotti, Francesco Picciotti
This article looks at some common corrosion-resistant alloys and gasket materials that are available for use in applications with high pressures and temperatures.

Effectively Control Column Pressure

January
2001
Reactions and Separations
Andrew W. Sloley 
Maintaining proper pressure can play a crucial role in the stable operation of a distillation column. Here’s how to select the most appropriate pressure-control scheme.

Shortcut Distillation Calculations via Spreadsheets

December
2002
Reactions and Separations
Jake Jevric, Muhammad E. Fayed
This method uses a numerical solution to the McCabe-Thiele diagram to find the theoretical number of stages for binary and pseudo-binary systems,then calculates the actual number of stages, reflux ratio and column dimensions.

Evaluating Dryers for New Services

December
2003
Heat Transfer
Charles G. Moyers
Continuous dryers are accurately and easily evaluated using laboratory-scale simulators combined with the specific drying rate approach.

A Strategy for Excellence in Process Development

October
2008
Process Development
Vaibhav V. Kelkar, Lionel O'Young
Here is how to integrate overall process development activities and identify practices that facilitate commercial process development.

Save Energy Through Automation

January
2010
Instrumentation
Douglas C. White
Identifying the right automation investments — those with low costs and high impacts — can result in millions of dollars in energy savings for petrochemical plants. <br>

Avoid Internet Pitfalls

April
2003
Information Technology
Tim Headley
When developing your website, take these preventative measures to steer clear of any potential lawsuits.

Pages

Subscribe to Chemical Engineering Practice