Chemical Engineering Practice

Piping and Instrumentation Drawings

AIChE Webinar
Jul 22, 2009
Piping & Instrumentation Drawings (P&IDs) are important communication tools for engineers. To be effective in the workplace, you must be able...

Process Flow Diagrams

AIChE Webinar
Jul 15, 2009
The webinar will benefit those inside and outside the process engineering community who need familiarity with PFDs as communication tools.

Biofuels Process Development

AIChE Spring Meeting and Global Congress on Process Safety
Apr 28, 2009
Biofuels process development is exploding due to high crude oil prices, desire for energy independence, and government subsidy. Many challenges exist...

Success and Prospects in Transport

AIChE Annual Meeting
Nov 16, 2008
The study of transport phenomena is an important area of chemical engineering. In many ways it differentiates chemical engineering from other...

Optimize Process Regulation

December
2001
Instrumentation
Phillip D. Schnelle
Laboratory feedback proportional-integral control integrates statistical process control with automatic process control to minimize process variability.

Make Your Plant More Energy-Efficient

December
2005
Heat Transfer
Alan Rossiter
Improve energy management by optimizing current equipment and operations, implementing economic investments, and engaging in sustaining activities.

Troubleshoot and Solve Pneumatic Conveying Problems

June
2010
Fluids and Solids Handling
Eric Maynard, Eric Maynard
Use this scientific approach instead of a costly trial-and-error method to diagnose problems and implement solutions for conveying systems.

Using Automation to Produce Quality Pharmaceuticals

October
2011
Instrumentation
Joseph S. Alford, P.E.
Automation can pay large dividends in the form of reduced process cycle times, lower operational costs, and more-consistent processes for manufacturing high-quality pharmaceutical products.

Handle Bulk Solids Safely and Effectively

September
2009
Fluids and Solids Handling
Eric Maynard, Greg Mehos and Eric Maynard
Follow these guidelines for proper design of bins, hoppers, and feeders to avoid operational and safety problems.

Select the Best Model for Two-Phase Relief Sizing

May
2001
Safety
Ron Darby, Paul R. Meiller, & Jarad R. Stockton , Ronald Darby
A variety of methods exist for sizing valves, but not all give the best predictions for certain conditions. RonDarby-PaulR.Meiller-JaradR.Stockton-

The World of Wireless

February
2010
News Feature
Matthew McKeon-Slattery
As wireless technologies have advanced, old limits have been overcome and new challenges have sprung up. Further growth is likely to be driven by specific application and cost-reduction needs. <br>

Alarm Management for Regulated Industries

April
2005
Instrumentation
Joseph S. Alford
This article focuses on the regulatory drivers for alarm management, summarizes key practices, and challenges automation vendors to devise new ways to help customers implement more-effective alarm systems.

Avoid Bulk Solids Segregation Problems

April
2012
Fluids and Solids Handling
Eric Maynard, Eric Maynard
Powder blend consistency can be difficult to maintain during processing. This article provides an overview of common segregation mechanisms, highlights key sampling techniques, and offers practical guidance on preventing and solving segregation...

Graphically Assess a Reactor's Characteristics

March
2006
Reactions and Separations
David Glasser, David Milne, David Glasser, Diane Hildebrandt and Brendon Hausberger
Use this technique to analyze reactor/reaction systems for which dependable kinetic data are available, or to quickly find the operating characterisitics needed for the maximum selectivity of a reactant.

Government Perspectives on Sustainability

January
2009
Special Section
Alan Hecht
Advances in science and technology, the application of diverse government regulations and policies, and green business practices are all needed to advance sustainabilty. Biofuels production is a good case study to illustrate how government and...

SBE Update

July
2009
SBE Special Section
June Wispelwey
Improving Biopharmaceutical Development

How Good Are Your Data?

June
2002
Instrumentation
Scott D. Barnicki
Some thoughts on the measurement and interpretation of vapor-liquid equilibrium

Succeed at Process Integration

January
2004
Career Catalyst
Alan Rossiter
In the application of pinch analysis for energy efficiency improvement and process optimization, technical excellence is necessary and human interactions are important for project success.

Improve Energy Efficiency via Heat Integration

December
2010
Heat Transfer
Alan Rossiter
Process heat integration using pinch analysis is a respected tool for achieving energy efficiency. This article explains what pinch analysis is and how to use it in process design and operation to attain real-world energy efficiency gains.

Choosing Process Vacuum Pumps

August
2012
Back To Basics
Dr. Don Collins
Vacuum pumps are an integral part of many industrial facilities. Both processing objectives and budget constraints must be considered when selecting a specific pump.

How to do an Internal FDA Audit

October
2001
Management
Gavin Sinclair
Meeting FDA regulations is not optional. The costs are high for any company that does not act responsibly to ensure that all additives are meet the required regulations.

Rapid Process Design

September
2006
Reactions and Separations
Michael Doherty, Sagar B. Gadewar
Use this structured approach, which combines preliminary experimental data with predictive methods and heuristics, to quickly generate and screen process alternatives at the early stages of a new venture.

Process Safety - Management or Leadership?

Global Congress on Process Safety
Apr 3, 2012
Process Safety Management is often presented as technically complex, requiring a large staff of engineers and specialists with an array of tools and...

Oxygen/Combustible Safeguards in Low Nox Fired Heaters

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Refineries have been installing low NOx equipment on their fired heaters in response to tighter environmental regulation. Low NOx burners minimize...

Environmental Law and Regulation 101

AIChE Spring Meeting and Global Congress on Process Safety
Mar 21, 2010
This presentation will provide a summary of each of the primary environmental regulatory programs, including air, water, waste and emergency planning...

Fundamentals of Industrial Catalytic Processes, 2nd Edition

October, 2005
Catalysis is central to the chemical industry, as it is directly or involved in the production of almost all useful chemical products. In this book the authors, present the definitive account of industrial catalytic processes. Throughout Fundamentals of Industrial Catalytic Processes the...

High-Shear Mixers: Still Widely Misunderstood

November
2007
News Feature
Suzanne Shelley
Advanced modeling techniques and improved geometric features are helping designers and users of rotor-stator mixers to demystify these complex devices, and get more consistent predictable results.

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.

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.

Choose the Right Chemical-Resistant Glove

January
2005
Safety
Julie Copeland
Many gloves offer protection from chemicals. This article will help you understand what type of glove can provide the best protection for your application.

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.

Specifying Laser Scanning Services

May
2005
Plant Design
Eric Hoffman
Increasingly, project managers are called upon to employ laser scanning technology. However, little information available to aid with its specification. This article discusses the basics of laser scanning and the parameters that should be included...

Use Multivariable Transmitters to Improve Flow Measurement

October
2010
Instrumentation
Nathan D. Stokes
Advances in multivariable transmitters allow more-accurate and more-repeatable flow measurements to be made over a wide range of conditions. Here’s how to select the device with the right capabilities for your applications.

Avoid Pitfalls in Evaluating Catalyst Performance

July
2001
Reactions and Separations
Daniel G. Loffler
Age and life are not suitable parameters to compare catalyst performance. The proper ones are the rate of reaction and the rate of deactivation.

Capital Spending in the Chemical Industry

January
2011
Chem Economics
T. Kevin Swift
Understand the economic state of the chemical industry and trends in capital investment to make wise corporate-spending decisions.

Determining Manufacturing Costs

January
2009
Back To Basics
John Anderson
Making early estimates of a product's cost components enables developers to manage resources wisely and evaluate the product's economic viability.

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,...

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.

Exposing Coriolis Mass Flowmeters' Dirty Little Secrets

March
2004
Instrumentation
James R. Reizner
Coriolis technology appears to be the perfect technology. But, upon closer inspection, a key flaw is revealed - the inability to accurately and consistently measure two-phase flow and aerated liquids.

Process Simulation from the Ground Up

April
2009
Back To Basics
David Hill
Today's process simulators produce graphical, data-filled and detailed results that can improve the effectiveness of the engineers who use them.

Reliability for Safety Instrumented Systems

September
2004
Instrumentation
J. Patrick Williams
This article offers a detailed reliability-based methodology for determining the safety integrity level of instrumented systems by providing overpressure protection where arrangements of multiple pressure-relief valves are impractical to implement.

Use Exponential Functions to Correlate Temperature Dependence

July
2008
Physical Properties
Faruk Civan
Use Exponential Functions to Correlate Temperature Dependence Asymptotic exponential equations may provide a more-accurate or easier-to-use representation of a property’s temperature dependence than commonly used polynomial expressions.

Choosing Trays and Packings for Distillation

September
2009
Back To Basics
Bruce S. Holden , Mark Pilling
Tower-related problems can be difficult, time-consuming, and expensive to diagnose and fix. Here’s how to avoid difficulties and improve operating efficiency.

Legionella: An Invisible Risk

April
2008
News Feature
Cynthia F. Mascone
Ignoring this hidden hazard can put both the public and companies that operate cooling towers at risk.

Reduce Thermal Risk in Industrial Synthesis

October
2001
Safety
Richard C. Wedlich 
Knowing the safe operating conditions for a reaction allows us to select appropriate safety measures and thereby lower both the likelihood and the severity of a thermal runaway.

Designing a Process Flowsheet

May
2009
Back To Basics
Vornel Walker
Piping and instrumentation diagrams belong to a family of flowsheets that includes block flow diagrams and process flow diagrams. Technology advances have transformed these resources into intelligent documents, capable of storing layers of digital...
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