Continuous and Discontinuous Anti-Solvent Crystallization: An Integrated Real-time Process Monitoring and Modeling Approach Conference PresentationAIChE Annual MeetingNovember 10, 2015Continuous manufacturing has been widely used in large-scale chemical and petrochemical industry for several decades. In the past several years, the...
Emissivity of Cracking Furnace Coils, Novel Temperature Measurement Solutions for Cracking Furnaces Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 5, 2012Accurate measurements of skin temperature on cracking furnace coils have become necessary for improved process control. Infrared devices have proven...
The Economics of Process Measurements Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 2, 2012What is the economic value of a new measuring device in a process plant – a new analyzer, a more accurate flow measurement, an additional temperature...
Asphaltene Instability Measured by Small-Angle Neutron Scattering Conference PresentationAIChE Annual MeetingOctober 19, 2011Asphaltenes are defined as the petroleum fraction that precipitates with the addition of a normal alkane; however, it was only recently discovered...
New Perspectives on Refinery Corrosion and Integrity Management Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyMarch 28, 2017Â Â Â âNew Perspectives on Refinery Corrosion and Integrity Managementâ Â Â Kjell Wold Global Business Development Manger - Roxar Flow Assurance...
An Interview with F&PD Keynote Speaker Claire Cagnolatti March 28, 2017Following her welcoming keynote for the Fuels and Petrochemicals Division, Claire Cagnolatti joined ChEnected for a short conversation.
Sponsored Webinar: Real-Time Data and Process Simulator Integration Archived Webinar Feb 10, 2016 Start solving operational problems differently using tools you already have in your facility. In this Radix Engineering and Software sponsored webinar, you’ll explore the why and how of integrating real-time data acquisition and historian systems with process simulators. You’ll consider how there...
Assessing Sustainability with Metrics and Methods Archived Webinar Sep 3, 2014 This presentation is about making an attempt to apply sustainability principles to engineering processes and products. Sustainability has been accepted as an organizing principle in most engineering disciplines. Industry and academia have also embraced the idea. Yet it is generally felt that not...
Maintenance and Reliability for Chemical Engineers (Part 4) Archived Webinar Apr 10, 2012 Learn how to develop a business case for reliability improvement and the benchmark and margin analysis approaches to understanding values of opportunities.
Wireless Measurement & Control Archived Webinar Aug 25, 2011 Wireless measurements reduce wiring installation and maintenance costs and eliminate electrical noise and ground loops. The portability of wireless transmitters offers opportunities to troubleshoot locations in the process with abnormal operations and to demonstrate process control improvements and...
New Products: March 2017 March2017New ProductsMeasurement Equipment Level Transmitters Provide Accurate Measurements in Challenging Applications The Model 2290 unguidedwave radar transmitters and Model 2291 guided-radar transmitters incorporate advanced radar-sensing technology designed for...
AIChE Journal Highlight: A High-Throughput Approach to Designing Materials November2016Journal HighlightIn the November AIChE Journal Perspective article, “High-Throughput Methods Using Composition and Structure Spread Libraries,” John Kitchin and Andrew Gellman of Carnegie Mellon Univ. discuss a method to more efficiently map material properties across composition, structure, and environmental conditions.
2014 Spring Poster Session: Darin Johnson, Ipex Double-Containment Piping April 30, 2014In the US, more than 3,200 hazardous materials listed by the EPA must be conveyed through double-containment pipes.
Safer and Smarter Sulfiding of Hydrotreating Catalysts Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 12, 2016Catalyst sulfiding (aka "presulfiding") is a critical step to ensure that hydrotreating catalysts perform as designed after startup. In order to...
Modeling of Residence Time Distribution in Continuous Solid Oral Dose Pharmaceutical Manufacturing Processes Conference PresentationAIChE Annual MeetingNovember 20, 2014Modeling of Residence Time Distribution in Continuous Solid Oral Dose Pharmaceutical Manufacturing Processes M. Sebastian Escotet-Espinoza, Amanda...
Modeling of Electrochemical Energy Storage Devices for Electric Vehicles Conference PresentationAIChE Annual MeetingNovember 3, 2013Abstract: Electrochemical energy storage devices such as lithium-ion batteries for electric vehicles have to be designed and optimized for...
Using Chromatography to Separate Complex Mixtures December2010Back To BasicsNathalie FraudPurifying 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.
Pressure-Sensors Fundamentals: Interpreting Accuracy and Error June2014Back To BasicsEugen GassmannBefore you choose a pressure-measuring instrument, make sure that you fully understand the ins and outs of the manufacturer-provided data.
Choose the Right Gas Sensor September2009InstrumentationSandra BarnesSelecting a sensor for continuous monitoring involves many considerations. This article discusses the types of sensors available, their applicability and limitations, and how to choose an appropriate sensor to protect people and equipment.
Residence Time Distribution Measurement Via Video Analysis for Design of Experiment Characterization of Melt Extrusion Conference PresentationAIChE Annual MeetingNovember 17, 2014
Effect of Anti-Apoptosis Genes On Clarification Performance Conference PresentationAIChE Annual MeetingNovember 6, 2013Optimal bioreactor harvest time is typically determined based on maximizing product titer without compromising product quality. We suggest that ease...
On-Line Detection of Elemental and Oxidized Hg Using Quadrupole Mass Spectrometry: Applications and Limits Conference PresentationAIChE Annual MeetingNovember 5, 2013Coal-fired power plants provided between 45 and 50% of the United States net energy generation in the years between 1999 and 2010. While alternate...
A Novel Fast Pyrolysis Model Based On Variable-Power Image Furnace Results Conference PresentationAIChE Annual MeetingNovember 4, 2013A Novel Fast Pyrolysis Model Based On Variable-Power Image Furnace Results Guillain MAUVIEL, LRGP, CNRS - Université de Lorraine Mélina CHRISTODOULOU...
Some Perspectives On the Impact of BIG Data On Process Systems Engineering Conference PresentationAIChE Annual MeetingNovember 3, 2013This presentation offers some advice to young researchers based on my own experiences in industry and academia. It also provides a personal...
Development and Comparison of Approximate Maximum Likelihood Methods for Parameter Estimation in Continuous Dynamic Models With Stochastic Disturbances Conference PresentationAIChE Annual MeetingNovember 3, 2013The aim of this work is estimating model parameters in simplified fundamental models intended for on-line process monitoring and state estimation...
Reservoir Model Optimization Using the Seismic Response to CO2 Injection and Stochastic Inversion Conference PresentationAIChE Annual MeetingNovember 1, 2012Reservoir Model Optimization Using the Seismic Response to CO 2 Injection and Stochastic Inversion Abelardo L. Ramirez 1 , Kathy Dyer 1 , Donald J...
Characterization of Products From High-Pressure Biomass Pyrolysis in an Entrained-Flow Reactor Conference PresentationAIChE Annual MeetingOctober 30, 2012A major advantage of biomass gasification is that any lignocellulosic material can be converted to syngas and subsequently to biofuels. There are...
Using Aspen Plus in Thermodynamics Instruction: A Step-by-Step Guide February, 2015Stanley I. Sandler offers a step-by-step guide for students and faculty on the use of Aspen in teaching thermodynamics. The book shows how easily-accessible, modern computational techniques are opening up new vistas in teaching thermodynamics, using a range of applications of Aspen Plus for the...
Introduction to Pressure Measurement March2014Back To BasicsEugen GassmannPressure-measuring devices come in a wide variety of designs and sizes to suit almost any application. This article describes the basics of pressure measurement and provides guidance on instrument selection.
Coriolis: The Direct Approach to Mass Flow Measurement March2013Back To BasicsTom O’BanionCoriolis meters eliminate the need to measure and correct for pressure, temperature, and density fluctuations to determine mass flowrate. Although their capital costs may be higher, they typically have a lower overall cost of ownership than other types of meters
Assess the Performance of Positive-Displacement Pumps December2007Fluids and Solids HandlingAIChE's Equipment Testing Procedures CommitteeHere's how to evaluate rotary pumps— gear, lobe, vane and multiple-screw designs— regardless of whether the material being handled is a Newtonian or non-Newtonian fluid.
Diagnosing Maldistribution in Towers May2007Reactions and SeparationsSimon X. XuGamma CAT-scan technology makes possible the collection of much more vital online process information than conventional diagnostic techniques.
Use Guided-Wave Radar to Measure Water Level in Steam Loops December2012Back To BasicsRavi Jethra, Keith Riley Guided-wave radar (GWR) is a useful tool for measuring water level in steam loops. This article describes GWR design and operation, and how this technology differs from more traditional forms of level indication.
How Good Are Your Data? June2002InstrumentationScott D. BarnickiSome thoughts on the measurement and interpretation of vapor-liquid equilibrium
The World of Wireless February2010News FeatureMatthew McKeon-SlatteryAs 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>
Avoid Pitfalls in Evaluating Catalyst Performance July2001Reactions and SeparationsDaniel G. LofflerAge and life are not suitable parameters to compare catalyst performance. The proper ones are the rate of reaction and the rate of deactivation.
Exposing Coriolis Mass Flowmeters' Dirty Little Secrets March2004InstrumentationJames R. ReiznerCoriolis 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.
Choose the Proper Level Measurement Technique April2011Back To BasicsGene HenryMatch the appropriate sensor to the intended application for accurate level measurement.
Tracing Process Problems April2002InstrumentationJohn E. HootsIn water chemistry control, fluorescent tracing technology can quickly and effectively determine and deal with the root cause of a problem.
Exploring Instrumentation Alternatives September2008InstrumentationRobert BakerSalvaged, remanufactured, refurbished or new-surplus equipment may be a cost-effective option. Here's how to recognize when such devices may no longer meet safety or regulatory requirements.
Improving Slurry Viscosity and Flow-Curve Measurements April2004Fluids and Solids HandlingNeil J. AldermanUse these techniques to ensure a slurry's rheological properties have been evaluated under relevant test conditions, and that measurements are accurate.
Measuring Temperature by Direct Contact September2011Back To BasicsGary FreemerThermocouples and resistance temperature detectors are the most common contacting temperature sensors. Understand the techniques and apply them correctly to increase your temperature measurement accuracy.
Implementing Fire and Gas Detection and Mitigation Systems September2008InstrumentationLawrence BeckmanA properly selected, configured and installed fire and gas safety instrumented system can reduce a facility's risk and maintain operational integrity.
Making Accurate Slurry Flow Curve Measurements May2004Fluids and Solids HandlingNeil J. Alderman Use these methods to ensure the flow curve used for engineering design is both accurate and relevant.
Measuring Temperature by Indirect Means November2011Back To BasicsGary FreemerNoncontacting infrared thermometers can be used in many applications that are too harsh or impractical for thermocouples and resistance temperature detectors. Understand their principles of operation and their advantages and limitations to select...
Liquid Viscosity Correlations for Flowmeter Calculations October2002InstrumentationRoger GilmontUse these graphs and equations to calculate liquid viscosity at any temperature.
Reliability for Safety Instrumented Systems September2004InstrumentationJ. 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.
Evaluating Chiller Performance May2003Heat TransferCharles ChurchmanUse these simple temperature and flow measurement techniques to evaluate chilled-utility performance and identify the most cost-effective upgrades.
Understanding Electromagnetic Flowmeters May2010InstrumentationRonald W. DiGiacomoConsisting 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.
Specifying Laser Scanning Services May2005Plant DesignEric 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...
Selecting In-Process Particle-Size Analyzers August2003Fluids and Solids HandlingPaul BarrettTo select the proper instrument for process monitoring, one must determine what attribute of the particle system impacts the process or product parameter of concern. Once the size region is identified, it can be tracked in-process, opening up the...
Use Multivariable Transmitters to Improve Flow Measurement October2010InstrumentationNathan D. StokesAdvances 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.
Monitor Cooling Towers for Environmental Compliance March2001Heat TransferAllen C. Hile, IIIEstablish an effective monitoring program by following these recommended practices.
Basic Process Measurements June, 2009A 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...
AIChE Equipment Testing Procedure - Centrifugal Pumps (Newtonian Liquids): A Guide to Performance Evaluation, 3rd Edition June, 2002This testing procedure provides methods of conducting and interpreting field tests on centrifugal pumps with actual pumped fluids. Contents include definitions and descriptions of terms; test planning; instrumentation and measurement methods; test procedure; computation of results; and...
AIChE Equipment Testing Procedure - Particle Size Classifiers, 2nd Edition June, 1993This 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...
AIChE Equipment Testing Procedure - Tray Distillation Columns: A Guide to Performance Evaluation, 2nd Edition November, 1987
Reduce Unplanned Shutdowns September2003InstrumentationCindy ScottToday'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.