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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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Observing and Modeling Cellulosic Substrate Depolymerization by Commercial Enzyme Cocktails Using Confocal Fluorescence Microscopy

Oct 17, 2011

Jeremy S. Luterbacher

Understanding and modeling the depolymerization mechanisms of cellulosic and lignocellulosic substrates by cellulase cocktails is a critical step towards further optimizing the production of monosaccharides from biomass. The Spezyme CP cellulase cocktail combined with the Novo 188 b-glucosidase...

Progress Toward Biological Pretreatment - Understanding Plant Cell Wall Degradation by Termite and White-Rot Fungi

Oct 17, 2011

Shulin Chen

In an effort developing more efficient and environmentally benign lignocellulosic biomass processing technologies, the authors’ laboratory has been studying plant cell wall degradation process in termite and white-rot fungi. This presentation summarizes the results so far obtained from various...

Biodegradation of Hardwood Lignocellulosics by the Western Poplar Clearwing Borer, Paranthrene Robiniae (Hy. Edwards)

Oct 17, 2011

Jing Ke

Plant lignin is a source of useful chemicals, and also the major barrier for saccharification of lignocellulosic biomass for ethanol conversion. The enzymatic lignin degradation/modification could bypass the need for chemical pretreatment and thereby facilitate bioprocess consolidation. Herein, we...

Ordered Mesoporous TiO2/ZnO Material for Hydrogen Production

Oct 17, 2011

Menan Hussein

Ordered mesoporous Zr-doped TiO 2 /ZnO material is currently being investigated for band gap tuning and higher loadings of photo-sensitizer. Utilization of such mesoporous materials thereby offers an opportunity to sensitize semiconductor with higher sensitizer loadings leading to effective charge...

Comparative Reaction Kinetics of Acid Hydrolysis of Plant Biomass and Algae Biomass

Oct 17, 2011

Bin Yang

The current vision of biomass (e.g. plant, algae) conversion technologies is focused on developing the reactive intermediates platform for biofuels and chemicals production. A key challenge in using biomass as a renewable resource is its incredibly diverse polymeric structure. Sugars, furfural, HMF...

Effect of Storage Method and Duration On the Bioprocessing of Lignocellulosic Biomass

Oct 17, 2011

Arun Athmanathan

Lignocellulosic biorefineries require an efficient system of biomass storage between harvesting and processing. This study reports the effect of storage method and duration on the composition and processing performance of sweet sorghum bagasse. Sorghum bagasse was harvested at 85% moisture content...

Effects of RTD On the Performance of NREL High-Solid Continuous Pretreatment Reactor

Oct 17, 2011

Suan Shi

Dilute-acid pretreatment is one of the most advanced and widely accepted pretreatment technologies. In this study, improvement in the process was sought specifically in the area of reactor technology. NREL has developed an efficient continuous pretreatment reactor that can be operated with high-...

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...

The Influence of Nickel Phosphide On the Fractional Catalytic Pyrolysis of Hybrid Poplar Wood

Oct 17, 2011

Foster Agblevor

The pyrolytic conversion of biomass to into liquid fuels has the potential to become drop-in transportation fuels if some of its negative attributes such as high total acid number (TAN), high viscosity, and poor storage stability are overcome. We investigated nickel phosphide supported on fluid...

Liquid Fuel Production Using Solar-Thermal Energy: Process Development and Technoeconomic Evaluation

Oct 17, 2011

Christos Maravelias

We have previously described a novel solar-based concept for the production of methanol from carbon dioxide and water. This system applies concentrated solar energy to thermochemically reenergize CO 2 into CO, and then water-gas shift (WGS) to produce syngas (a mixture of CO and H 2 ) that is fed...

Flow and Transport Properties In High-Solids Biomass Slurries

Oct 17, 2011

James J. Lischeske

Economic biochemical conversion of cellulose to sugars necessitates minimal addition of water to biomass slurries during conversion, resulting in high-solids systems. The resulting slurries are effectively wet-granular materials. These materials presents difficulties for reactor engineering, as...

Kinetics Study of Furfural Production From Cellulosic Biomass

Oct 17, 2011

Taiying Zhang

Furfural is an important chemical and also a building block for production of drop-in hydrocarbon fuels and can be produced from cellulosic biomass such as woody crops and bagasse by hydrolysis and dehydration with mineral acids. However, furfural yields employing current technologies are limited...

Pyrolysis Vs. Gasification: Effect of Oxygen In Reaction Atmosphere On Biochar Properties

Oct 17, 2011

Catherine E. Brewer

Since biochar properties can vary widely depending on feedstock and processing conditions, making meaningful comparisons between biochar produced by different processes (pyrolysis, gasification, kiln carbonization) and at different locations can be difficult. Biochar characterization methods can...

Technoeconomic Analysis of Biomass Gasification System Utilizing Geothermal Energy for Processing

Oct 17, 2011

Song-Charng Kong

The use of biomass as a source of energy has been studied extensively inrecent years, and special attention has been paid to biomass gasification. In this study, ASPEN Plus is used to conduct technoeconomic analysis of a large biomass gasification system. A biorefinery scenario consisting of 2,000...

The Horizontal Ribbon Growth of Solar Silicon Crystals: Process Analysis, Stability, and Control

Oct 17, 2011

Parthiv Daggolu

Present-day photovoltaic technology is predominantly based on the fabrication of solar cells from silicon. The cost and efficiency of silicon-based solar cells depend primarily on the growth rate and degree of single-crystallinity attained by the growth process. Traditional silicon crystal growth...

Improving the Quality of Spent Mushroom Substrate (SMS) As Feedstock for Biorefineries

Oct 17, 2011

Maria Nydia Ruiz-Felix

In the current ecological climate there is a strong push to find a renewable energy resource to reduce the usage of fossil fuels which are depleting and are causing greenhouse gas emissions. Biorenewable materials, particularly lignocellulosic biomass, have received increased attention recently as...

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