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Safety in the LNG Value Chain

Dec 12, 2012

Georges Melhem, Henry Ozog

In this webinar, presenters describe and examine potential LNG (liquefied natural gas) hazards and risk-reduction methods for the LNG value chain ― production and consumption.

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Center for Energy Initiatives (CEI)

The Center for Energy Initiatives is an AIChE Industry Technology Group devoted to the development, design and efficient use of energy by chemical engineers and related professionals.

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Pretreatment of Loblolly Pine for Fast Pyrolysis Via Torrefaction

Oct 17, 2011

Jiajia Meng

Topical 6: Lignocelluosics: Biorefineries and Sustainable Energy T6007 Thermalchemical Conversion I AIChE 2011, October 16~21, 2011 Minneapolis, MN Pretreatment of Loblolly Pine for Fast Pyrolysis via Torrefaction Jiajia Meng, David Tilotta, and Sunkyu Park* Department of Forest Biomaterials, North...

Computational Modeling and On-Sun Model Validation for a Multiple Tube Solar Reactor with Reflective Cavity Walls

Oct 17, 2011

Janna Martinek

A three-dimensional steady state computational fluid dynamics model is developed for a solar receiver consisting of a reflective cavity with a windowed aperture enclosing an array of five tubes. The computational model couples radiative transfer with fluid flow, heat transfer, mass transfer, and...

A Novel SHF Process for Conversion of AFEX-CS to Ethanol Featuring High Ethanol Productivity, Enzyme Recycling, and Yeast Cells Reuse

Oct 17, 2011

Venkatesh Balan

There are two major problems in current cellulosic ethanol production process: low ethanol productivity and high enzyme loading. Based on the current Separate Hydrolysis and Fermentation (SHF) process, it takes at least 96h to perform enzymatic hydrolysis to convert AFEX-CS to fermentable sugars at...

A Novel Method to Harvest Microalgae Via Fungal Pelletization

Oct 17, 2011

Jianguo Zhang

Microalgae harvest contributes a large portion of cost for microalgae-to-biofuels production. Most current harvest technologies including chemical and mechanical methods are only economically feasible for production of high-value products due to the costs. In this work, we are describing a new...

Lifecycle Assessment and Policy: Implications of the Renewable Fuel Standard for Upper-Midwest Energy Supply

Oct 17, 2011

Michael J. Brodeur-Campbell

Lifecycle Assessment and Policy: Implications of the Renewable Fuel Standard for Upper-Midwest Energy Supply Michael Brodeur-Campbell 1 , Jordan Klinger 1 , Kathleen Halvorsen 2,3 , and David Shonnard 1,4 [1] Department of Chemical Engineering, Michigan Technological University [2] Department of...

Hydrogen-Bromine Flow Battery for Large-Scale Electrical Energy Storage

Oct 17, 2011

Trung V. Nguyen

Abstract Renewable energy, including wind and solar, could supply a significant amount of electrical energy in the United States and around the world. However, despite the benefits of wind and solar, integration of these intermittent sources into the electrical grid system poses major challenges to...

Solar Thermochemical Recycling of CO2 Using ALD Deposited CoFe2O4 On Alumina Supports

Oct 17, 2011

Paul Lichty

Fuels production through metal oxide redox cycling can be completely renewable if reduction temperatures are achieved using concentrated solar energy. Many combinations of metal oxides have been investigated over the years and cobalt ferrites show much promise as they have good thermodynamic...

Milking Lipids From Green Alga: Feasibility of Using Biocompatible Solvents to Extract Lipids From Living Cells

Oct 17, 2011

Ryan Coiner

A key hurdle in realizing commercial-scale production of biodiesel from cultured algae is efficient harvesting/dewatering of algal cells. In order to produce a gallon of biodiesel from algae, thousands of gallons of water must be processed, even when algal biomass is grown in relatively...

Life Cycle Assessment of Advanced Regional Biomass Processing Depots Integrated with Sustainable Cellulosic Feedstock Landscapes

Oct 17, 2011

Pragnya L. Eranki

Lignocellulosic biomass can help fulfill escalating demands for liquid fuels and mitigate the environmental impacts of petroleum-derived fuels. Cellulosic biofuels also offer potential solutions to many socio-economic and sustainability problems caused by petroleum dependence. However, the large...

Catalytic Hydrolysis of Ammonia Borane Using Co-B Nanoparticles Embedded In Mesoporous Silica Particles: a Very Efficient Catalyst for Hydrogen Production

Oct 17, 2011

Dushyant C. Kothari

Ammonia Borane (AB), with high hydrogen storage capacity (19.5 wt.%), is predicted to be possibly a future fuel for providing pure H 2 to fuel cell at room temperature for on-board and portable applications. However, a heterogeneous catalyst plays a vital role for first initiating and then...

Hydrogen Production Via Fermentation of Avicel and Corn Stover In a Sequencing Batch Reactor

Oct 17, 2011

Lauren R. Magnusson

When produced from waste lignocellulosic materials, hydrogen is one of the most promising options for a long-term, net-zero emission energy carrier. A major barrier to industrial scale production of bio-H 2 is its techno-economic feasibility. Advances in consolidated bioprocessing are required to...

Analysis of Heat Transfer In a Solar Thermochemical Partial-Redox Reactor with Heat Recovery

Oct 17, 2011

Justin L. Lapp

Transient heat transfer is analyzed numerically for a directly-irradiated solar thermochemical reactor realizing a ceria-based partial redox cycle for production of synthesis gas from water and carbon dioxide. The numerical model couples conduction, convection, and radiation heat transfer modes to...

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...

Wood Pellets Self-Heating During Storage

Oct 17, 2011

Wendi Guo

Accidental fires in wood pellets silos happen frequently in the last five years. Experiments were carried out in this work at temperature range of 100 o C to 200 o C to study wood pellets chemical oxidation process. A self-heating model was developed to simulate the self-heating process using the...

Novel Reactor Design for Conversion of Waste Oils to Biodiesel

Oct 17, 2011

Richard A. Cairncross

Biodiesel is a renewable, carbon-neutral fuel that can ease pressure on the world’s dwindling supply of oil and petroleum diesel. This research explores production of biodiesel from alternative low-value feedstocks such as waste oils. Traditional biodiesel reactions mix an alcohol and a refined...

Solar Thermal Production of Hydrogen Using Alumina Supported Ferrites: Thermodynamic Evaluation and On-Sun Validation

Oct 17, 2011

Paul Lichty

Alumina supports were coated with CoFe 2 O 4 using an alternating atomic layer deposition process. Nano-powder and hollow skeletal shells were used as supports. Large, high surface area polymer particles (~600µm, 43.5 m 2 /g) have been coated via ALD with several layers of alumina. The alumina...

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