June 2019 CEP Preview June 11, 2019This issue, the 2019 AIChE salary survey for chemical engineering, along with articles on smart manufacturing, cybersecurity, cooling tower design, and much more.
Optimize Water and Energy Use in Evaporative Cooling Towers June2019Heat TransferBill Celenza, P.E., Sarah Shank, P.E.Design your evaporative cooling tower to handle variable ambient conditions and find the optimal balance between energy and water use.
May 2019 CEP Preview May 15, 2019This month, a look at chemical engineering in the food industry, along with tips for industrial insulation, dealing with vapor-phase idealities in chemical process simulations, and more.
Introduction to Industrial Insulation May2019Back To BasicsKim Melton, Jack BittnerDesigning an insulation system is more nuanced than simply selecting a material that has a maximum use temperature above the operating temperature of your system.
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...
Summer Heat Transfer Conference July 15-18, 2019Hyatt Regency Bellevue, Bellevue, WACo-programmed by ASME and AIChE, the 2019 Summer Heat Transfer Conference (SHTC) will bring together international researchers and engineers focusing on heat and mass transfer in a variety of applications. The program of SHTC2019 will include technical paper sessions, plenary lectures, committee...
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...
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...
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...
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,...
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...
New Products: February 2019 February2019New ProductsHeat Transfer Small Spray Dryer Fits In Laboratory Hoods The Model 0.1 PolarDry electrostatic spray dryer has a design that follows current good manufacturing practices (cGMPs) enforced by the U.S. Food and Drug Administration (FDA). The dryer is...
December 2018 CEP Preview December 12, 2018This month CEP looks at pharmaceutical manufacturing trends in addition to articles on electric heat tracing systems, process intensification, distillation tower inspections, and much more.
Troubleshooting Electric Heat Tracing Systems December2018Heat TransferMark CrombieDetermine why your electric heat tracing system is not satisfying your process heating demands.
Heat Exchanger Design and Operations Face-to-Face CourseThis course is ideal for chemical and mechanical engineers who are engaged in plant operations, technical services, and project design; or with...
New Products: September 2018 September2018New ProductsHeat Transfer Cooling Tower Packing Reduces Harmful Bacterial Growth SaniPacking fills and drift eliminators for wet cooling towers prevent the growth of bacteria, including Legionella pneumophilia , as well as Pseudomonas aeruginosa , the most...
A Shortcut to Determine Optimal Steam Pipe Diameter August2018Heat TransferSrbislav Genić, Branislav JaćimovićExisting models for calculating pipeline diameter are complicated and provide inconsistent and, therefore, unreliable outputs. This model simplifies the calculations to optimize the pipeline diameter and reduce overall plant cost.
Essentials of Steam Turbine Design and Analysis August2018Back To BasicsJimmy D. KumanaEffective design, analysis, and integration of steam turbines can help optimize steam supply reliability and overall energy efficiency across your plant.
Catalyzing Commercialization: New System Freezes Food Faster at Lower Cost July2018Catalyzing CommercializationIn the U.S., 70% of consumed food passes through a cold chain, an uninterrupted series of temperature-controlled storage and distribution activities. Globally, maintaining these cold chains consumes one-sixth of all electricity generated and produces 30 billion metric tons of CO2 per year. Traditional vapor-compression heat pumps have low efficiencies, use refrigerants with a high global warming impact, and are unable to provide dynamic cooling capacity. A new technology will dramatically change this picture by first complementing, and eventually replacing, vapor-compression cycles.
Reboilers with Plate-Fin Brazed Aluminum Heat Exchangers: Best Practices and Considerations for Design and Operation Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 25, 2018Brazed Aluminum Heat Exchangers (BAHX) are used in cryogenic reboiler applications for natural gas processing and ethylene production industries. In...
Overcoming Heat Transfer Bottlenecks in Non-Equilibrium Chemical Processes through Autothermal Operation Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 25, 2018Overcoming Heat Transfer Bottlenecks in Non-Equilibrium Chemical Processes through Autothermal Operation Robert C. Brown 1, 2 and Chad Peterson 2 1...
Hybrid Heat Pipe Screw Dryer: A Novel, Continuous and Highly Energy-Efficient Drying Technology Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 25, 2018This work investigated a novel type of screw conveyor dryer (SCD) equipped with a passive heating provided by an annular heat pipe, termed â...
Improving Catalytic Reformer Heaters Duty Using New Technologies Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 24, 2018Catalytic Reformer Units are one of the most important units and are always being run at the maximum capacity. The multi stage heater used in the...
Troubleshooting Vacuum Operation of an Inter-after Condenser Unit in Ethylene Plant Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 24, 2018An ethylene refrigeration compressor in ethane cracker unit is powered by surface condensing steam turbine that operates under vacuum. The vacuum is...
Data-Driven Real-Time Estimation and Optimization for Integrated Pre-Heat Exchange Trains and Distillate Cutpoints in Multiple Fractionation Columns Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 23, 2018
Radiant Heat Flux Impact Criteria for API RP 752 Building Siting Studies Conference PresentationAIChE Spring Meeting and Global Congress on Process SafetyApril 23, 2018Building siting studies are an increasingly important part of process safety, as they are required for facilities that fall under OSHAâ...
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: February 2018 February2018New ProductsHeat Transfer Condensing Boiler Has a Flexible Design for Easy Field Access The Free Flex condensing boiler has a 95% thermal efficiency and a weld-free construction. The heat exchanger can be easily accessed in the field for cleaning. The boiler is...
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...
December 2017 CEP Preview December 20, 2017This month, methods for order-of-magnitude cost estimation for shale-gas, optimized heat transfer of viscous fluids, the chemical industry in the Philippines, and more.
Interview: Dominic and Nick Nguyen Introduce Their ChemE App December 5, 2017The two brothers' new app, Refyne, uses an interactive refinery game to teach basic chemical engineering concepts.
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...
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...
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...
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,...
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...
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...
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,...
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...
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...
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...
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 ,...
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...
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,...
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...
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...
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...
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 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...
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...
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...
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...
Optimize Heat Transfer of Viscous Fluids in Agitated Vessels December2017Heat TransferGregory BenzIn cooling applications with high-viscosity fluids, agitator power input adds to the heat load. This article demonstrates how to optimize net heat transfer to improve cooling.