2009

Applying Mass and Energy Balances to Spray Drying

December
2009
Back To Basics
Tim Langrish
Mass and energy balances are not just for process and equipment design. They can also be used to improve dryer operations by answering various “what-if” questions about temperatures, flowrates, and moisture contents. <br><br>

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.

Predictive Modeling in Catalysis - From Dream to Reality

June
2009
On The Horizon
Ana G. Maldonado
In silicocatalyst optimization is the ultimate application of computers in catalysis. This article provides an overview of the basic concepts of predictive modeling and describes how this technique can be used in catalyst and reaction design.

Understanding Operating Data

October
2009
Back To Basics
Tony Cooper
Operating data offer valuable clues and are essential to managing and improving processes.However, they can also be misleading and hide the underlying issues.The principles and statistical tools presented here can help you make effective use of...

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.

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...

The New Disposable Evolution

July
2009
SBE Special Section
Joanna Ziemlewski
Single-use systems have advanced from a limited product line to several new products for a wider range of unit operations. As these technologies evolve, new size, cost, and regulatory needs continue to fuel industry growth.

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.

Capturing Carbon from Existing Coal-Fired Power Plants

April
2009
Special Section
James T. Murphy, Andrew P. Jones, Timothy E. Fout, Jared P. Ciferno
DOE's National Energy Technology Laboratory is spearheading R&D on a variety of post-combustion and oxy-combustion technologies to cost-effectively achieve 90% CO2 capture.

Principles of Bioprocess Control

November
2009
SBE Special Section
Joseph S. Alford
The use of complex living organisms, process variation, and lack of real-time measurements of key parameters are some of the challenges involved in automating a bioprocess. This article explains an indirect approach to monitoring and controlling a...

Prepare an Effective Intellecutal Property Business Plan

August
2009
Management
Steven R. Hansen
The intellectual property component of a business plan is instrumental in protecting and promoting engineering innovations. Here’s how chemical engineers can provide valuable input into the preparation of an IP business plan.

Obtain the Best Physical Property Data

May
2009
Fluids and Solids Handling
Kevin G. Joback
Physical property values are essential for many chemical engineering tasks. This article reviews sources of physical property data, discusses the use of experimental methods to measure properties, and details several types of estimation techniques.

Capturing CO2: Membrane Systems Move Forward

April
2009
Special Section
Suzanne Shelley
Membranes offer inherent advantages over absorption-based CO2 capture from post-combustion fluegas and pre-combustion syngas, but numerous design and scale-up challenges remain.

Selecting Entrainers for Azeotropic Distillation

March
2009
Reactions and Separations
Lionel O’Young, Madhura Chiplunkar, Vivek Julka
This systematic methodology uses residue curve maps to identify and evaluate substances that can facilitate distillation by breaking an azeotrope.

Improve Your Air Emissions Estimates

May
2009
Environmental Management
Jeffrey H. Siegell
Process plants must report emissions from an increasing number of sources. Use these pointers to prepare more-representative emissions inventories.

Ace the Interview

November
2009
Career Catalyst
Lisa L. Walker
Few situations can be more anxiety-provoking than a job interview. Although the skills required for a successful interview may not come naturally, they can be honed — with practice, introspection, and informed preparation.

Apply Process Integration to Environmental Impact Assessment

February
2009
Environmental Management
Hassan E. Alfadala, Patrick Linke, Ahmed Abdel-Wahab, Eva M. Lovelady, Mahmoud M. El-Halwagi
This approach provides valuable insights early in the design process and systematizes the design effort, while reconciling process objectives with environmental constraints.

Reshaping the Structure of Fluidized Beds

July
2009
Fluids and Solids Handling
Marc-Olivier Coppens , John Nijenhuis, J. Ruud van Ommen
Adding structure to a gas-solid fluidized-bed reactor changes the system’s hydrodynamics and can improve performance.

Incorporating Sustainability into Chemical Engineering Education

January
2009
Special Section
Cliff I. Davidson, Braden R. Allenby, Cynthia F. Murphy, David T. Allen
This benchmarking study of the types of courses offered and the material being taught sheds light on what the engineering profession regards as sustainability.

Disarming the Firing Squad

July
2009
Career Catalyst
Kate Wendleton
If thoughts of a layoff keep you up at night, stop wringing your hands and start taking action. Follow this 11-step plan to position yourself for success in these uncertain economic times.

Assessing Competency During the Hiring Process

December
2009
Career Catalyst
Lisa L. Walker
Interviews and references provide insight into what a job candidate has accomplished. Competency assessment helps the employer ascertain how an individual will actually think and behave on the job. <br> <br>
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