Design/Green Engineering

Critical Conditions for High Efficiency Flocculation of Freshwater Algae with Ferric Chloride

Oct 17, 2011

John C. Hewson

Algae have recently received much attention due to their potential as a source of clean biofuel. One of the key economic hurdles in the production of biofuel from algal feedstocks continues to be the harvesting process. Flocculation shows great potential for lowering the economic hurdle by...

The Effect of Fly Ash From Different Coal Sources On the Reactivity of An Iron-Based Oxygen Carrier for Chemical Looping Combustion

Oct 17, 2011

Aurora M. Rubel

The University of Kentucky, Center for Applied Energy Research is investigating oxygen carriers (OC) for chemical looping combustion (CLC) with the goal of developing a pressurized chemical looping combustion/gasification process for generating electricity from coal. An important issue in the...

An Osmotic Membrane Dehumidifier

Oct 17, 2011

Arthur S. Kesten

OSMOTIC MEMBRANE DEHUMIDIFIER It has long been known that relying on a vapor compression system to cool air down to the dew point in order to dehumidify is expensive to build and uses far too much energy to operate. The ability to dehumidify independently of cooling provides substantial advantage,...

Simulation Study of Different Alternatives for Isoamyl Butyrate Production by Using Aspen Plus®

Oct 17, 2011

Jairo A. Duran

Simulation Study of Different Alternatives for Isoamyl Butyrate Production by Using Aspen Plus ® Jairo Duran, Karen Cañón, Iván Gil, Gerardo Rodríguez, Julio Vargas Grupo de Procesos Químicos y Bioquímicos. Department of Chemical and Environmental Engineering. Universidad Nacional de Colombia...

Process Optimization towards Sustainability Using Modified Particle Swarm Algorithm for a Multitude of Objectives

Oct 17, 2011

Mazdak Shokrian

Extreme purpose of finding the most cost effective design solution with the least waste generation possible, considering environmental and social impacts in chemical engineering design problems justifies developing a systematic methodology for incorporating sustainability concerns into design and...

Development of Fuzzy Based - Inherent Safety Performance Indices Integrated with Process Simulators

Oct 17, 2011

Namjin Jang

A milestone in process safety was the 1974 Flixborough explosion in the United Kingdom the caused twenty-eight deaths. Following, the accident interest in chemical process industry safety increasd, as well as from government regulatory organizations and the general public. Since 1978, interest in...

Rule of Thumb for Reactor Design and Process Condition for Biodiesel Production

Oct 16, 2011

Masato Kouzu

The rule of thumb for reactor design and process condition for biodiesel production is introduced. The important aspect includes type of feedstock oil, catalyst selection, methanol/oil ratio, quality of the produced biodiesel. When low quality plant oil is used as the feedstock, its pre-treatment...

Rules of Thumb for Reactor Design and Process Conditions for Thermochemical Treatment of Chromated Copper Arsenate (CCA) Treated Wood Waste

Oct 16, 2011

Lieve M. Helsen

Lab-scale pyrolysis experiments have been performed to gain insight in the mechanisms influencing the metal behavior during carbonization of chromated copper arsenate (CCA) treated wood chips. To this end a fixed bed low temperature pyrolysis reactor and a thermogravimetric (TG) analyser have been...

Accounting for Ecosystem Services in Strategic Business Decision Making

SEF Webinar

Aug 10, 2011

Bhavik Bakshi

This webinar illustrates the role of ecosystem services in providing direct and indirect support to various industrial activities.

Wastewater Treatment for Refineries Using Canadian Tar Sands SAGD Crude as Feed Stock

Mar 15, 2011

Rafique Janjua

Refineries using Canadian Crude as feed stock are experiencing high emulsion wastewater from Desalter mud wash operation. This waste is high in COD /BOD loading and will exert shock to the aeration system by scavenging dissolved oxygen and resulting in misoperation and NPDES exceedences. Emulsion...

Real Time CO2 and Energy Cost Reductions: Field Experiences In Petrochemical Plants

Mar 14, 2011

Oscar Santollani

Over a period of more than 10 years of deploying industrial projects related to energy systems real time optimization and cost reduction in processing industries around the world, the following issues have been found time and time again: • Many applications of energy cost reduction technologies are...

Design Enhancements of a High Temperature, Ceramic Micro-Channel Heat Exchanger

Nov 9, 2010

Merrill Wilson

The recent developments in the energy and process industries have lead to more efficient, higher-temperature processes and compact equipment. By using small features such as micro-channels, pin fins or plate fins the length scale for which transport occurs is minimized and thus increases the heat...

Toward Low-Cost Fabrication of Microchannel Process Technologies – Cost Modeling for Manufacturing Development

Nov 8, 2010

Steven D. Leith

Chemical and energy conversion systems based on microchannel process technology (MPT) demonstrate high performance in applications in which rates are controlled by diffusive heat and mass transfer flux. MPT-based heat exchangers, absorbers/desorbers and chemical reactors all benefit from process...

Engineers Without Borders - USA -- Chemical Engineers Can Make an Impact in the Developing World

AIChE Webinar

Sep 15, 2010

John Cirucci

Engineers Without Borders - USA supports community-driven development programs worldwide through the design and implementation of sustainable engineering projects, while fostering responsible leadership.

Using Catalytic Nanoparticles to Clean Water

NSEF Webinar

Apr 15, 2010

Michael Wong

In this talk, I will describe our work in improving the feasibility of these NP catalysts for groundwater remediation and in understanding how the gold enhances the Pd catalytic activity so dramatically.

Stripper Configurations for CO2 Capture by Aqueous Amines

Mar 23, 2010

David H. Van Wagener

A monumental task for improving the feasibility of carbon capture from the flue gas of coal-fired power plants is reducing the total energy cost. A generic absorption/stripping process using an aqueous amine solvent would reduce the net power production of a coal-fired power plant by roughly 30%,...

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