Reshaping the Structure of Fluidized Beds
J. Ruud van Ommen, John Nijenhuis, Marc-Olivier Coppens
Adding structure to a gas-solid fluidized-bed reactor changes the system’s hydrodynamics and can improve performance.
Chemical Engineering Practice
Minimize Scale-Up Risk
Bertil Stromberg, J. Brad Cort, Thomas Pschorn
Proven commercial-scale equipment already exists for many operations involved in producing biofuels from lignocellulosic feedstocks.
Using Chromatography to Separate Complex Mixtures
Nathalie Fraud
Purifying high-value mixtures, such as pharmaceuticals, can be an expensive undertaking. Choosing the correct chromatography methods can improve purity and reduce processing time and cost.
Reduce Piloting Time and Cost
David A. Berg, Michael T. Cleary
Pilot-scale experimentation is essential to establish a sound foundation for a new chemical processing unit. These best practices can reduce the time and cost involved in process development.
Environmental Law for Chemical Engineers
Mary Ellen Ternes
A basic understanding of environmental law is beneficial for all chemical engineers. Learn how laws are proposed, made, and implemented, and ways to avoid incurring unnecessary penalties.
Selecting Tube Inserts for Shell-and-Tube Heat Exchangers
Richard L. Shilling, P.E.
A tube insert modifies flow stream characteristics to enhance heat transfer. Here’s how to choose the optimal insert to meet process requirements.
Shale Gas Brightens Outlook for U.S. Chemicals
Martha Gilchrist Moore, T. Kevin Swift
The chemical industry will experience moderate annual growth over the next few years — ranging between 2.2% and 4.6% through 2017. The higher growth rate accounts for new investments announced in response to the abundant supply of shale-based...
Pneumatic Conveying of Bulk Solids
Gain a better understanding of pneumatic conveying problems and principles, allowing you to evaluate and troubleshoot your in-plant systems to determine effectiveness and improve efficiency.
Spreadsheet Problem-Solving for Chemical Engineers
Spreadsheets are a powerful problem-solving tool for chemical engineers. But to take full advantage of all they can do, you need a strong foundation in common problem-solving spreadsheet technique. Join chemical engineer and Excel expert David Clough and pick up dozens of tips and techniques unknown to many engineers that will help you solve chemical engineering problems faster and more accurately.
Molecular Thermodynamics and Transport Phenomena: Complexities of Scales in Space and Time
AccessEngineering
Effectively Control Column Pressure
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.
Runaway Reactions - Consider Bottom Venting for Reactive Liquids
Kenneth L. Walter, Victor H. Edwards
Avoid runaway reactions by selecting the right pressure-relief system. In certain situations, passive bottom-venting can be an improvement over conventional top-venting pressure relief systems.
Understand Freeze-Condensation Vacuum Systems
James R. Lines
Placing a freeze-condenser ahead of an ejector system offers several advantages. Here's a look at what such units can do.
Correctly Calculate the Potential to Emit
Janet Scheier
Determining maximum capacity and ensuring that permit limits are federally enforceable are critical to calculating PTE.
Troubleshooting Bins, Hoppers and Feeders
Jerry R. Johanson
By understanding solids' properties and what promotes flow, problems faced in the plant can be remedied
Estimate the Capacity of Simple Batch Processes
James L. Manganaro
Finding the throughput of a multiple-unit, multiple-step operation, even when it is relatively uncomplicated, is not always an easy matter. Several equations and graphical aids are provided to help determine yearly capacity.
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