Chemical Reaction Engineering

AIChE Journal Highlight: Absorption Methods Determine Mass-Transfer Parameters of Packed Beds

August
2017
Journal Highlight
To design and analyze absorber columns, engineers need reliable mass-transfer parameters for rate-based models in process simulations. However, unlike for distillation, no set of standardized measurement methods for absorption have been generally accepted. Mass-transfer parameters measured by different methods at different facilities, or calculated from different correlations, can have significant disparities. Thus, a need exists to improve the precision and accuracy of experimental methods for determining mass-transfer coefficients so that reliable and coherent sets of data can be derived.

Hydrolysis of Ddg

Conference Presentation
AIChE Annual Meeting
November 11, 2015
Liquid hot water (LHW) extraction was used as a pretreatment method to separate the hemicellulose fraction from dried distiller’s grain with solubles...

Hydrolysis Kinetics of Woody Biomass: Surface Renewal

Conference Presentation
AIChE Annual Meeting
November 11, 2015
Woody biomass is known to be composed of three major components: cellulose, lignin and hemicellulose. Cellulose is the most stable natural polymer in...

The Travelling Fluidized Bed Project: Working Together

Conference Presentation
AIChE Annual Meeting
November 10, 2015
John Chen had a strong attachment to “challenge problems” to evaluate the ability of models and CFD codes to accurately predict complex fluidization...

Szorb Sulfur Removal Technology - a Solution of Tier 3

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 28, 2015
S Zorb(TM) Sulfur Removal Technology is very different from what is commonly known as the Hydrodesulfurization (HDS) Technologies. What distinguishes...

Fischer-Tropsch Synthesis: Where We Are and Where We May GO

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 27, 2015
The Germans followed a simple plan when they scaled up the Fischer-Tropsch (FT) synthesis to the commercial level. For the reactor, they set a simple...

Root Cause Study of Debutanizer Column Operational Upsets

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 3, 2012
The NOVA Chemicals Debutanizer Column at the Corunna site experienced operational upsets. Gamma scans revealed that the column had flooded, and upon...

Hydrogen Membrane Technology for Ethylene Production

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 3, 2012
HYDROGEN TRANSPORT MEMBRANE TECHNOLOGY FOR ETHYLENE PRODUCTION U. (Balu) Balachandran, T. H. Lee, C. Y. Park, and S. E. Dorris Energy Systems...

Carbon Capture Ready Heavy Oil Extraction and Upgrading

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 3, 2012
Carbon dioxide emissions from heavy oil production are typically higher than that of producing conventional crudes. Ultimately, carbon dioxide...

Amine Treating: A Technology Review and Tutorial

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 3, 2012
Removal of H 2 S and CO 2 from gas streams and liquid hydrocarbon streams is important in many industrial processes. Solutions of aqueous amines have...

Re-Rating Ethylene Plant Equipment for Optimum Results

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 2, 2012
Rerating of turbomachinery equipment installed in ethylene plants is a well established method of improving plant operation, whether it is capacity...

Shortcut Methodology in Pilot Plants

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 29, 2009
This session is devoted to short cut methods in pilot plants, including enhanced experimentation, multi-throughput methods, and use of modeling to...

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...

European Efforts in Process Intensification

Archived Webinar
Aug 19, 2015
European Union (EU) efforts to develop Process Intensification (PI) for the chemical industry have been more focused and organized than US efforts. The Savannah River National Laboratory (SRNL) is currently applying Process Intensification and Smart Manufacturing (SM) to several initiatives within...

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...

Modeling and Optimization of a Cracked Naphtha Post-Treater

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 28, 2017
FCC cracked naphtha is a valuable component of the gasoline pool that, when untreated, is characterized by high olefin and sulfur content. The...

Sponsored Webinar: Modeling of Turbulent and Laminar Reacting Flows

Archived Webinar
May 26, 2016
Are you involved in reaction flow modeling? Do you wonder if simulation may be helpful in your work? Get the answer here. In 60 minutes, this COMSOL-sponsored webinar delves into the simulation of reacting flows. You’ll learn how reacting flow and fluid dynamics may heavily influence the residence...
User interface for an app for modeling turbulent reacting flow in a water treatment reactor. The basin is designed to avoid short circuiting streams and for enhancing mixing within each compartment in the basin.

Modeling of Laminar and Turbulent Reacting Flows

Archived Webinar
Sep 29, 2015
This presentation focuses on the simulation of reacting flows. Reacting flow and fluid dynamics may heavily influence the residence time distribution of chemical species and the reaction distribution in a non-ideal reactor or reacting system. In this webinar, we will show how multiphysics modeling...

Sponsored Webinar: Modeling Non-Ideal Reactors and Mixers

Archived Webinar
May 7, 2014
This webinar discusses methods for defining and solving detailed models, calibrating simpler models to these detailed models, and simulating a process line using process flowsheet models. It also shows how COMSOL can be used for analyzing and solving such models.

Introduction to Fluidized Bed Technology

Archived Webinar
Apr 13, 2011
This webinar explores the fundamentals of fluidization: how materials fluidize; differences in fluidization characteristics based on size and density; minimum fluidization; bubble formation, size and coalescence; and fluid bed flow regimes.

Liquid Product of Liquid Phase Pyrolysis

Archived Webinar
Feb 10, 2010
Ligno-cellulosic feed is expected to contribute significantly to production of liquefied combustibles in the future, because of the quantity and the variety of feed material.

CEP: News Update

November
2016
News Update
Shapeshifting Material Unfolds with Time A new hydrogel material can change shape on its own schedule. Cobalt Gets a New Look for Fischer-Tropsch The Fischer-Tropsch (FT) process converts synthesis gas (a mixture of carbon monoxide and hydrogen)...

February 2015 CEP Preview

February 18, 2015
Ethics Examining Your Engineering Responsibility Engineering ethics frequently has nothing to do with technology and everything to do with communication, thought and decision-...

May 2015 CEP Preview

May 11, 2015
Energy The Four Pillars of Industrial Energy Efficiency Enhance your facility’s energy efficiency through operational improvements, effective maintenance, engineered improvements...
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