Analysis of a Nearly Isoentropic High Efficiency Pumped Heat Electricity Storage Process Conference PresentationAIChE Annual MeetingNovember 10, 2015Pumped heat electricity storage (PHES) is a recently proposed competitive energy storage solution for large scale electrical energy storage (EES). It...
Analysis and Optimization of High-Emissivity Coil Inserts to Improve Overall Coil Heat Transfer at Lower Pressure Drop and Shorter Residence Time in Ethylene Furnaces Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 29, 2015This paper presents analysis of high-emissivity cylindrical inserts to improve overall coil heat transfer in ethylene furnaces or other furnaces...
Ejector Refrigeration Cycle for Natural Gas Plant Waste Heat Recovery in Hot Climates Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 29, 2015Natural gas processing plants (gas plants) use refrigeration systems to provide the cooling duty required by the process. Typical designs of such...
Shale Oils - Design Approach for Improved Reliability and Performance in the Crude Preheat Train Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 29, 2015Refiners are continuing to maximize processing of shale crudes in existing assets and building new crude units to take advantage of the spread that...
Design, Installation, Operation and Maintenance of Transfer Line Exchanger Feedwater Systems Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 28, 2015Ethylene transfer line exchangers, TLE’s, play an essential role in the process of producing ethylene. It quenches the effluent gas coming from the...
CFD Modeling of Fouling in Crude Oil Refinery Heat Exchangers Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 28, 2015The complex phenomenon of crude oil fouling is a byproduct of several chemical and physical mechanisms acting together. It is caused by deposition of...
Automation Solutions for Processing Tight Oil Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 28, 2015Opportunity crudes from shale are more readily available in North America with incentives on cost. However, these typically lighter crude oils don't...
FCC Main Fractionator Debottlenecked By Online Waterside Cleaning Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 28, 2015A Refinery FCC is critical to product blending, and an unplanned shutdown has large economic penalties. Water quality at a refinery can bring a unit...
Crude Unit Desalting Operations: Techniques for Improving Fouling and Corrosion Control Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 28, 2015The crude oils being bought by refineries today introduce new difficulties in desalting those crude oils. This presentation will address some of the...
Modeling Dynamic Heat Transfer in Piping Systems Using An Enhanced ASTM C-680 Algorithm Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 4, 2012AIChE 2012 Spring Conference Modeling Dynamic Heat Transfer in Piping Systems using an Enhanced ASTM C-680 Algorithm Debby Sielegar Process...
Increasing Propane Desuperheater and Condenser Reliability in PT Badak NGL Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 3, 2012PT Badak NGL is the operator for natural gas liquefaction at Badak LNG Plant, Bontang, Indonesia. At present PT Badak NGL has 8 Trains. The mode for...
Absorption Refrigeration for Auxiliary Applications in LNG Plant Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 3, 2012ABSORPTION REFRIGERATION FOR AUXILIARY APPLICATIONS IN LNG PLANT Jordan Belue a , Robert Havlik b , Stanley Huang a , a: Chevron Energy Technology...
Practical Process Integration Retrofit Part 3. Path Analysis Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 3, 2012Practical Process Integration Retrofit Part 3. Path Analysis G.T.Polley The concept of transferring heat along paths was first suggested by Dhole [1...
Dynamic Simulation of Demethanizer and Chilling Train System Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 2, 2012The chilling train system is an important part of ethylene plant which is usually combined with demethanizer and a series of flash drums to separate...
New Products: July 2017 July2017New ProductsHeat Transfer Portable Chiller Line Has Expanded Cooling Capacities The Iceman SC Series portable chiller line has been expanded to include the air-cooled ASL and water-cooled WSL portable chillers. The new units have an available fluid temperature...
Mixing and Reaction without Stirred Tanks: Part 2 Archived Webinar May 31, 2017 Are you working with mixing and reaction processes in stirred tanks? It may be time to switch to pipelines. This is the second part of a two-part webinar series. Click here to also register for Part 1. In this webinar series, you’ll examine how to achieve several mixing and reaction processes in...
Fundamentals of Laminar Mixing and Applications Archived Webinar May 17, 2017 Do you know how to characterize a mixing system for power and blend time? Determine the best geometry for required mixing conditions or product specifications? Tune into this webinar. Join this webinar to update your skills while reviewing the fundamentals of laminar mixing and applications. In 60...
Mixing and Reaction without Stirred Tanks: Part 1 Archived Webinar Apr 26, 2017 Are you working with mixing and reaction processes in stirred tanks? It may be time to switch to pipelines. This is the first part of a two-part webinar series. Click here to register for Part 2. This two-part webinar series examines how to achieve in pipelines several mixing and reaction processes...
Successful Retrofit Applying Ultra-Low NOx, High-Capacity Burners on an Existing Heater with a Small Radiant Section Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyMarch 29, 2017Successful retrofit of high capacity ultra-low NOx burners is accomplished via thorough evaluation of the existing heater, comprehensive CFD modeling...
Recent Developments in the Optimisation of Crude Oil Distillation Systems Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyMarch 29, 2017Crude oil distillation is an energy intensive process that is central to petroleum refining. Over time, the distillation unit and the associated heat...
Heat Exchanger Design and Operations Public (classroom) CourseThis course is ideal for chemical and mechanical engineers who are engaged in plant operations, technical services, and project design; or with...
Distillation Technology for Operators eLearning (online) CourseGain an understanding of the theory of successful distillation practices. In addition, learn about what actually happens in a column with this online...
Fluid Mixing Technology for Operators eLearning (online) CourseAre you ready to expand your knowledge of mixing theories and improve your performance and results? This course is for you.
New Products: April 2017 April2017New ProductsSoftware Software Simulates Plant Environment for Operator Training OmegaLand V3.1 dynamic simulation environment enables the construction of virtual plant models that can be used to train operators and study and verify new processes. The platform...
Sponsored Webinar: Optimizing Heat Transfer Fluid Performance Through System Design Archived Webinar Mar 9, 2016 Avoid the costly consequences that can occur when careful consideration is not given to heat transfer fluid performance during the design process. In this Eastman Chemical Company sponsored webinar, you’ll learn the essentials of high temperature liquid phase heat transfer system design and how to...
Transport Phenomena: Heat Transfer Archived Webinar Aug 13, 2014 This webinar provides an overview of the basic concepts of Heat Transfer illustrating the key topics with practical examples in the areas of energy conservation, conduction, convection and radiation. After an overview of the basic concepts including the mechanisms of heat transfer and the equations...
January 2017 CEP Preview January 9, 2017This month CEP looks at troubleshooting, offers a feature on process safety management don'ts (read full text online), looks at air-cooled heat exchanger performance, and much...
Improve Air-Cooled Heat Exchanger Performance January2017Back To BasicsSteve Boes, P.E.Employ the maintenance practices outlined here to increase the cooling capacity of your air-cooled heat exchangers.
Catalyzing Commercialization: Converting Waste Heat into Electrical Power December2016Catalyzing CommercializationWaste heat is an enormous and largely untapped source of low-cost energy. More than half of the energy consumed in the world escapes into the atmosphere in the form of waste heat. With global energy demand projected to increase by nearly 50% by 2040...
November 2016 CEP Preview November 9, 2016In addition to this month's cover story on food irradiation, you'll find articles on condensate return systems, budgeting techniques, patent strategies, and much more.
Stop Knocking Your Condensate Return November2016Back To BasicsJames R. RiskoCondensate return systems can have a big impact on productivity, energy efficiency, and site reliability. Use this guide to better understand your condensate return, optimize its operation, and mitigate common pitfalls such as high backpressure and water hammer.
Video Tutorial: Introduction to Free Convection November 10, 2016If you're not clear about the basics of free convection, this video tutorial is for you. In this post, the LearnChemE YouTube series by the faculty of University of Colorado...
Video Tutorial: Radial Convective Heat Transfer October 6, 2016This month's video tutorial from LearnChemE's series of screencasts introduces radial convective heat transfer. It looks at three different correlations (Hilpert, Zukauskas,...
Video Tutorial: Nucleate Pool Boiling March 3, 2015Learn how to determine the heat flux and the convective heat transfer coefficient for a copper pipe where water is undergoing nucleate pool boiling.
April 2015 CEP Preview April 3, 2015Career Catalyst Humanitarian Chemical Engineering A broader view of ethics and professional responsibility considers the engineer’s impact on humanity. Read this article now...
June 2015 CEP Preview June 16, 2015Chemical engineers continue to earn more than the average U.S. worker. The median salary of survey respondents is $127,000 — a 5.8% increase over the median reported in 2013.
September 2015 CEP Preview September 8, 2015HEAT TRANSFER Cool Down with Liquid Nitrogen Many low-temperature processes leverage nitrogen's cooling and freezing capabilities. Find out what methods are used in what...
China Goes Big for Concentrated Solar with 1,000 MW Order from SolarReserve May 17, 2016When SolarReserve CEO Kevin Smith points out the innovation that makes the Crescent Dunes concentrated solar power plant (CSP) so unique, he highlights the 12-hour storage...
January 2015 CEP Preview January 15, 2015Special Section: Sustainability Sustainability Trends in the Chemical Industry The AIChE Sustainability Index provides benchmarks of a company’s performance on a variety of...
Use of Hitran Tube Side Enhancement in Revamps to Improve Operability and Efficiency Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 13, 2016Over the past decades various innovations in the design of heat exchangers have been major driving forces in the improvement of thermal process...
Unique Pre-Cleaning Passivation Challenges in Cooling Water Systems Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 12, 2016Pretreatment of cooling water systems is essential to maximize the service life and reliability of heat exchange equipment. Usually, pretreatment...
The Use of hiTRAN Wire Matrix Technology for the Size Reduction of Heavy Crude Heat Exchangers in Separation Processes Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 12, 2016The flow characteristics of heavy crude oils make them difficult to process with conventional refining equipment. Heating and cooling capacity is...
Heat Transfer Enhancement in Heat Exchangers to Reduce Plant Energy Demand Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 12, 2016Shell and tube heat exchanger are the workhorses in refineries and chemical plants. In order to improve plant efficiency they should be designed in...
Boiler Emissions Reduction through Humid Combustion Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 11, 2016This presentation will compare conventional emissions abatement techniques with alternative options utilizing direct contact heat exchangers, which...
Multiphase Flow Modeling of LNG Using Smoothed Particle Hydrodynamic (SPH) Techniques Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 11, 2016Abstract Smoothed Particle Hydrodynamics (SPH) has shown promise when used for numerical simulation of the release of LNG and the subsequent...
Automation Solutions for Processing Light Tight (Shale) Oil Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 2, 2014Opportunity crudes from shale are more readily available in North America with incentives on cost. However, these typically lighter crude oils don’t...
E-FLEX - an Alternative to Increase Propylene to Ethylene Ratio for Liquid Crackers Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 1, 2014Since 2000, the majority of plants built in the Middle East and proposed for the US are based on ethane feedstock. In the US, with the implementation...
Applicability of Currently Available Flare Radiation Models for Hydrogen and Syngas Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyMarch 31, 2014The primary purpose of a flare model is to provide a reasonably accurate prediction of radiant heat flux at any point of interest around the flame,...
Trouble-Shooting and Optimizing Ethylene Plant Cooling Water Networks by Using Advanced Process Simulation Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyMay 1, 2013Abstract: Cooling Water Networks generally do not receive due attention from engineers and are usually overlooked in comparison to other critical...
Composite Fuels Production for Combustion Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyMay 1, 2013ABSTRACT Goal of the Project The primary goal of the project is the creation of composite fuels for combustion processes containing biomass, coal,...
Development of Heat Exchangers for Use As Replacement Plates Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013Development of Heat Exchangers for Use as Replacement Plates In Distillation Columns: Proof of Concept and Collection of Design Information 2 Graham...
Identifying Heat Recovery Paths to Be Used in Improving the Energy Efficiency of Pre-Heat Trains Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013A heat recovery path consists of a combination of heat exchangers and pipework linking a heat source and a heat sink. The concept of transferring...
Carburization In Ethylene Radiant Coils Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013CARBURIZATION IN ETHYLENE RADIANT COILS Hugues Chasselin, tech support Manoir industries, France Abstract : Carburization is a phenomenon encountered...
Heat Integration and Relief Systems Design Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013Heat integration is a commonly skipped aspect of process design when evaluating a process’ relief systems design. A failure to evaluate the heat...
Compact Heat Exchange Reactors in Pilot Plants for Fischer-Tropsch Synthesis and Mixed Alcohol Production Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013Chart’s Compact Heat Exchange Reactor (CHER) is a brazed metal reactor with integrated heat exchange capabilities. Because of its high metal surface...
CFD Simulation of Laminar Liquid Film Condensation On the Entrance Region of Vertical Plate Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013A computational fluid dynamics model based on volume of fluid method is developed to investigate the laminar film condensation accompanied by mixed...
Producing Biochars With Consistent Properties From Forestry Residues: Using Spatial Variations of Reactor Temperature History to Choose Pyrolysis Conditions Conference PresentationAIChE Annual MeetingNovember 4, 2013One desirable quality of reactors used for the thermochemical conversion of biomass is that they be “feedstock-blind”: capable of producing...
Implement a Sustainable Steam-Trap Management Program January2014Heat TransferJonathan P. WalterSteam trap management is important for the successful operation of a chemical processing plant. Follow these guidelines to realize the benefits of such a program.
Flare Minimization of Boil-Off Gas during LNG Production Conference PresentationAIChE Annual MeetingNovember 17, 2014Flare Minimization of Boil-off Gas during LNG Production Yogesh Kurle and Qiang Xu Dan F. Smith Department of Chemical Engineering Lamar University,...
Tube Inserts for Heat Exchangers - Energy Conservation and Run Optimisation Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 2, 2014The improvement that can be obtained from tube inserts in heat exchangers have been the subject of several studies performed by TOTAL. These studies...
Cascade Utilization of Fuel Gas Energy in Gtl Plant Conference PresentationAIChE Annual MeetingNovember 7, 2013This paper investigates on a GTL plant with ATR syngas production and proposes a new process to use GT/WHRGSP to replace the fired heater. The new...
Hydrodeoxygenation of Microalgae Oil in a Microreactor Conference PresentationAIChE Annual MeetingNovember 7, 2013Removal of residual oxygen from long chain lipids via hydrodeoxygenation (HDO) will produce a liquid fuel comprising mostly straight chain alkanes ,...
Evaluation of a Multiple Air Dosage System By Comparing a Monolithic Reactor With a Micro Reactor for Autothermal Steam Reforming of Diesel Conference PresentationAIChE Annual MeetingNovember 5, 2013It is estimated that the heavy-duty diesel vehicles (HDDVs) contribute to approximately 30 % of the total emissions of nitrogen oxides (NOx) and...
Structure-Activity Relationships in Biomass Chars Formed in An Entrained-Flow Reactor Conference PresentationAIChE Annual MeetingNovember 4, 2013Pine and switchgrass (sieved to 180-250 µm) were pyrolyzed in an entrained-flow reactor at high temperatures (600-1000 °C) and high pressures (1-20...
Surface Functionalization Of Mesoporous Sorbents For Post-Combustion CO2 Capture Conference PresentationAIChE Annual MeetingNovember 4, 2013Solid sorbent technologies for CO2 capture have several advantages over the traditional amine-based solvent absorption approaches. For instance ,...
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...
Cooling Water Issues Follow up Solutions to Microbiologically Induced Corrosion Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013In the 2007 turnaround at the BASF TOTAL PETROCHEMICALS LLC Ethylene Steam Cracker, severe damage was discovered in the cooling tower water to...
Improving Fired Heaters Using CFD Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013We have successfully used CFD( Computational Fluid Dynamics) to improve the performance of a Crude and Coker Heater. CFD helps to model the burners,...
The Design and Revamp of Cooling Water Networks Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 30, 2013Cooling Water Networks G.T.Polley , M.Picon Nunez & E.Tamakloe Dept. of Chemical Engineering, University of Guanajuato, Mexico In Reality:...
Assessing the Role of Thermal Stresses in Caprock Integrity During CO2 Storage Conference PresentationAIChE Annual MeetingNovember 1, 2012Deep saline aquifers provide unbeatable capacities for long term CO 2 storage, provided CO 2 does not leak. Upon CO 2 injection the pressure in the...
Influence of Impeller Design On Power Input and Performance During High Solid Enzymatic Hydrolysis of Pretreated Lignocellulose Conference PresentationAIChE Annual MeetingNovember 1, 2012Reaching high ethanol titers after the fermentation step is crucial in cellulosic ethanol production in order to make the process cost competitive...
Formulation Development of Hot Melt Extrudate to Stabilize Amorphous API Conference PresentationAIChE Annual MeetingNovember 1, 2012Hot Melt Extrusion: Identification and optimization of key excipients utilizing high-throughput screening methodology. By utilizing various tool kits...
Dynamic Model of a Solar Thermochemical Water-Splitting Reactor with Integrated Energy Collection and Storage Conference PresentationAIChE Annual MeetingOctober 31, 2012Global climate change is the preeminent challenge of the 21 st century. Carbon dioxide from fossil fuel combustion is altering the world's...
Multi-Physics Modeling of Auto-Thermal Diesel Surrogate Reforming Conference PresentationAIChE Annual MeetingOctober 30, 2012Abundant supply and existing infrastructure makes diesel a favorable candidate for portable energy supply. Diesel generators are widely used in...
Fuel Processing: Renaissance of the Second Decade (Keynote) Conference PresentationAIChE Annual MeetingOctober 30, 2012The early development of fuel processing technologies for fuel cell systems was, to a great extent, driven by fuel cell automobile programs. At the...
Transient Heat and Mass Transfer in a Reacting Cerium Dioxide Medium Exposed to Direct High-Flux Irradiation Conference PresentationAIChE Annual MeetingOctober 30, 2012A numerical heat and mass transfer model is presented for a porous medium of cerium dioxide exposed to direct high-flux irradiation and undergoing...
A Shell-and-Tube Direct Steam Generator for Concentrated Solar Power Generation Conference PresentationAIChE Annual MeetingOctober 29, 2012?Making Solar Energy Economical? is one of the Grand Challenges posed by the National Academy of Engineering. However, innovation in concentrating...
Modeling the Dynamics of the Film Coating Operation for Pharmaceutical Tablets Conference PresentationAIChE Annual MeetingOctober 29, 2012Previous work in understanding the thermodynamics of the film coating operation has focused mainly around the pseudo-steady state reached between the...
Process Burners 101 August2013Back To BasicsCharles Baukal, Erwin PlatvoetProcess burners may be classified based on flame shape, emissions, fuel type, and other characteristics. Here’s what you need to know to work effectively with a burner manufacturer when selecting a burner for your application.
Incorporate Rigorous Heat Exchanger Models in Simulation July2014Back To BasicsRon Beck, Shelby Hegy, Tom Ralston Embedding a rigorous heat exchanger model within an established simulation environment can help engineers increase process yields, while minimizing heat exchanger energy consumption and capital expenditures.