Design Requirements For Pressurized Chemical Looping Reforming,
2011
Vienna University of Technology
Design Requirements For Pressurized Chemical Looping Reforming, Tobias Pröll, Hermann Hofbauer, K. Marx
10th International Conference on Circulating Fluidized Beds and Fluidization Technology - CFB-10
A key issue in chemical looping reforming is to operate the process under pressurized conditions. Applicability of dual fluidized bed systems, currently used in atmospheric chemical looping processes, is affected by pressure. Critical design issues were studied and experimentally verified by cold flow model experiments. It turns out that it is important to achieve sufficient global solids circulation and to keep the pressure difference between the reactors low enough for proper operation of the loop seals.
Flow Field In A Novel Short Residence Time Gas-Solid Separator,
2011
Chinese University of Petroleum (Beijing)
Flow Field In A Novel Short Residence Time Gas-Solid Separator, Mengxi Liu, Chunxi Lu, Zhuan Wang
10th International Conference on Circulating Fluidized Beds and Fluidization Technology - CFB-10
The gas flow field in a short residence time separator was investigated. The tangential velocity in the separator housing increases with increasing angle to the positive x axis, and decreases with increasing radial position. A swirl of opposite direction to the main current in the separator housing occurs in the gas outlet.
Cold Flow Model Study On Interconnected Fluidized Bed Reactors For Multi-Generation Systems And Chemical Looping Processes,
2011
All-Russia Thermal Engineering Institute
Cold Flow Model Study On Interconnected Fluidized Bed Reactors For Multi-Generation Systems And Chemical Looping Processes, Georgy A. Ryabov, O M. Folomeyev, D A. Sankin, K V. Khaneyev
10th International Conference on Circulating Fluidized Beds and Fluidization Technology - CFB-10
Interconnected fluidized bed reactors (DCFB) were implemented in multi-generation systems (pyrolysis FB reactor and CFB boiler), chemical looping combustion (CLC) systems (double metal oxides or carbonate oxide reactors) and three reactor chemical looping gasification processes. The presented data focus on the solids circulation rate and on pressure profiles of the DCFB depended on selected operating parameters such as fluidization gas flow rate, loop seal fluidization, and solids inventory. Most work was devoted to studying standpipe and valve operation.
Epoxy/Pcl/Cnf Nanocomposite Towards Electrically Triggered Self-Healing And Reversible Adhesion,
2011
Syracuse University
Epoxy/Pcl/Cnf Nanocomposite Towards Electrically Triggered Self-Healing And Reversible Adhesion, Lawrence Matthew Levy
Renée Crown University Honors Thesis Projects - All
In this report, we summarize the results of research related to development of an electrically-triggered reversible-adhesive material. The material is made of an epoxy comprised of diglcidyl ether of bisphenol-A (DGEBA) and 4,4’-diaminodiphenylsulfone (DDS). By combining the epoxy with PCL a “bricks and mortar” morphology is created with reversible adhesion properties. A phenomenon known as differential expansive bleeding (DEB) is the driving force of the self-healing and reversible-adhesion. The epoxy/PCL was embedded within electrically conductive carbon nanofibers (CNF) created from electrospun poly(acrylonitrile) (PAN). The material’s high conductivity allowed convenient heating with a power source. Initial tests revealed a lack of …
Integration Of Ce-Sscp In Genetic Analysis: Fabrication And Optimization Of The Polymer Matrix,
2011
University of Arkansas, Fayetteville
Integration Of Ce-Sscp In Genetic Analysis: Fabrication And Optimization Of The Polymer Matrix, Hannah Lintag
Chemical Engineering Undergraduate Honors Theses
Genetic analysis has become an essential aspect in the field of biological research. Genetic material contains an abundance of information that can be harnessed, from the pathological study of diseases to the identification of algal species used for alternative fuel. The detection of genetic species and/or their mutated counterparts is an approach that still warrants improvement, however. Capillary electrophoresis-single strand conformation polymorphism (CE-SSCP) offers a rapid and highly-reproducible means to detect alterations in genetic material. In this project, its implementation in the field of genetic studies as a way to detect mutations in hereditary diseases and identifying species via genetic …
Process And Automation Design For The Construction Of A Fully Automated Biofuel Production Unit,
2011
University of Arkansas, Fayetteville
Process And Automation Design For The Construction Of A Fully Automated Biofuel Production Unit, Kylan Rakestraw
Chemical Engineering Undergraduate Honors Theses
Phase I investigated a method for producing butanol from algae using a novel automated hydrolysis, fermentation, and separation process. The Phase I research team sought to experimentally optimize individual steps and parameters of the process, design and build an automated unit to produce fuel-grade butanol from algae in a batch process, evaluate the sustainability and large scale economics of the process, and design an outreach program encouraging energy and environmental awareness centered around K-12 students. The team used macroalgae samples obtained through the generosity of the City of New York from Jamaica Bay to test the equipment and viability of …
Biodiesel Production From Waste Algae Through Supercritical Methanol And Solid Catalysts,
2011
University of Arkansas, Fayetteville
Biodiesel Production From Waste Algae Through Supercritical Methanol And Solid Catalysts, Alexander Lopez
Chemical Engineering Undergraduate Honors Theses
The need for alternate fuels continues to rise as fossil fuel reserves decline, and the effects of harmful fuel emissions on the environment begin to take its toll. One alternate fuel that has great potential is biodiesel. Biodiesel is a non-petroleum based fuel composed of alkyl esters from feedstocks. Using biodiesel as an alternate fuel source has a variety of advantages over traditional petroleum diesel, including producing no SOx emissions and low COx emissions. Another important advantage of biodiesel is that it can be produced from a wide variety of feedstocks. Biodiesel processes using waste cooking oil, animal fats, and …
Self-Assembling Organic Semiconductors With Tunable Electronic Properties Based On Novel Asymmetric Phenazine And Bisphenazine,
2011
University of Nevada, Las Vegas
Self-Assembling Organic Semiconductors With Tunable Electronic Properties Based On Novel Asymmetric Phenazine And Bisphenazine, Kyoungmi Jang
UNLV Theses, Dissertations, Professional Papers, and Capstones
Current demands in the area of organic semiconductors focus on both electronic and self-assembling properties. Particularly, one-dimensionally grown nanostructures of small organic semiconductors have drawn much attention for nanodevice fabrication. Self-assembly through various intermolecular interactions has been widely used to produce one-dimensionally grown nanostructures which can be induced by various methods such as rapid solution dispersion, a phase transfer method, vapor annealing, crystallization, and organogelation in conjunction with proper molecular design. Controlling the morphology of the nanostructures plays an important role in achieving desirable properties in optoelectronic device applications. While significant advancements have been made in developing molecular architectures for …
Algae To Butanol: The Design, Construction, And Implementation Of An Automated Sugar-To-Fuel Process,
2011
University of Arkansas, Fayetteville
Algae To Butanol: The Design, Construction, And Implementation Of An Automated Sugar-To-Fuel Process, Elizabeth Bevan
Chemical Engineering Undergraduate Honors Theses
Phase I investigated a method for producing butanol from algae using a novel automated hydrolysis, fermentation, and separation process. The Phase I research team sought to experimentally optimize individual steps and parameters of the process, design and build an automated unit to produce fuel-grade butanol from algae in a batch process, evaluate the sustainability and large scale economics of the process, and design an outreach program encouraging energy and environmental awareness centered around K-12 students. The team used macroalgae samples obtained through the generosity of the City of New York from Jamaica Bay to test the equipment and viability of …
Cost Efficient Method Of Pumping Water For Small, Remote Rural Communities,
2011
University of Arkansas, Fayetteville
Cost Efficient Method Of Pumping Water For Small, Remote Rural Communities, James Hudson
Chemical Engineering Undergraduate Honors Theses
Many technologies are used for water disinfection. Chlorine, iodine, and ozone are some chemical methods of water disinfection. Filtration, including microfiltration, ultrafiltration, and reverse osmosis, is used to remove bacteria. In addition to chemical and filtration technologies, one can disinfect water using UV irradiation, ultrasonic treatment, electrolysis, solar disinfection, and slow sand filtration.
Currently, there are few solutions being employed in third world settings for communities. The current solutions are either for one household or are part of an existing infrastructure and therefore are not portable. Slow sand filtration is used successfully to provide potable water for individual households. Tablet …
Adsorption Of Neodymium Experiment Design To Simulate Nuclear Fuel Reprocessing,
2011
Syracuse University
Adsorption Of Neodymium Experiment Design To Simulate Nuclear Fuel Reprocessing, Brian C. Froese
Renée Crown University Honors Thesis Projects - All
The purpose of this project was to develop a laboratory experiment to be conducted by future Nuclear Engineering Track (NET) students that adequately demonstrates adsorption of the lanthanide neodymium, an extraction technique used in nuclear fuel reprocessing. Nuclear fuel reprocessing is the chemical separation of various elemental components in spent nuclear fuel. These components, once isolated, can be recycled or reused and ultimately minimize the volume of radioactive waste. There were several steps taken to accomplish this task. First, an independent study of Dr. Hyung Jun Park’s work on phosphorus based adsorbents was conducted. Research was also done on current …
Continuous, Passive Liquid-Liquid Extraction And Emulsion Separation Within Microfluidic And Millifluidic Devices,
2011
Bucknell University
Continuous, Passive Liquid-Liquid Extraction And Emulsion Separation Within Microfluidic And Millifluidic Devices, Janet Tesfai
Master’s Theses
Liquid-liquid extraction (LLE) is a method used to separate compounds based on their relative activity in two immiscible phases. By significantly reducing the scale of liquid-liquid extraction to the micro- and milli-fluidic levels, this separation process can bemade suitable for low volume, high value materials.
Cfd Modeling Of Entrance And Exit Geometries Of A Wind Speed Accelerator.,
2011
University of Louisville
Cfd Modeling Of Entrance And Exit Geometries Of A Wind Speed Accelerator., David Russ
Electronic Theses and Dissertations
Current wind power technology is not economically feasible throughout most of the United States due to low average wind speeds. A design for a small-scale wind concentrator device suitable for use in areas of low wind velocity was tested using computational fluid dynamics (CFD). Using a novel approach, the device seeks to accelerate incoming air above minimum velocities required for economical power generation. The novel approach employs a funnel shaped inlet with relief vents along the circumference, so as to alleviate backpressure. Both inlet and outlet sections utilize funnel shapes with both parabolic and hyperbolic regions. All geometry and mesh …
Extraction Of Butanol By Continuous Pervaporation Of A Two-Stage Fermentation,
2011
University of Arkansas, Fayetteville
Extraction Of Butanol By Continuous Pervaporation Of A Two-Stage Fermentation, Kelly Meek
Chemical Engineering Undergraduate Honors Theses
Within this research a fermentation broth is used that has been developed first from the continuous fermentation of algal sugars to organic acids with Clostridium tyrobutyricum, followed by the continuous fermentation of the organic acids to butanol using Clostridium saccharoperbutylacetonium. The two-stage fermentation has the potential to increase the butanol selectivity from 60% by weight with the traditional ABE process to as high as 100% with the 2-stage process.
Conversion Of Algal Sugars To Butanol In A Novel Automated Process,
2011
University of Arkansas, Fayetteville
Conversion Of Algal Sugars To Butanol In A Novel Automated Process, Jill Ivey
Chemical Engineering Undergraduate Honors Theses
Phase I investigated a method for producing butanol from algae using a novel automated hydrolysis, fermentation, and separation process. The Phase I research team sought to experimentally optimize individual steps and parameters of the process, design and build an automated unit to produce fuel-grade butanol from algae in a batch process, evaluate the sustainability and large scale economics of the process, and design an outreach program encouraging energy and environmental awareness centered around K-12 students. The team used macroalgae samples obtained through the generosity of the City of New York from Jamaica Bay to test the equipment and viability of …
Clean Energy Water Disinfection International Environmental Education Design Contest,
2011
University of Arkansas, Fayetteville
Clean Energy Water Disinfection International Environmental Education Design Contest, Howard Heffington
Chemical Engineering Undergraduate Honors Theses
Many technologies are used for water disinfection. Chlorine, iodine, and ozone are some chemical methods of water disinfection. Filtration, including microfiltration, ultrafiltration, and reverse osmosis, is used to remove bacteria. In addition to chemical and filtration technologies, one can disinfect water using UV irradiation, ultrasonic treatment, electrolysis, solar disinfection, and slow sand filtration.
Currently, there are few solutions being employed in third world settings for communities. The current solutions are either for one household or are part of an existing infrastructure and therefore are not portable. Slow sand filtration is used successfully to provide potable water for individual households. Tablet …
Water Purification For Rural Communities Using Ultraviolet Light And Bleach Systems,
2011
University of Arkansas, Fayetteville
Water Purification For Rural Communities Using Ultraviolet Light And Bleach Systems, Ryan Lee
Chemical Engineering Undergraduate Honors Theses
Many technologies are used for water disinfection. Chlorine, iodine, and ozone are some chemical methods of water disinfection. Filtration, including microfiltration, ultrafiltration, and reverse osmosis, is used to remove bacteria. In addition to chemical and filtration technologies, one can disinfect water using UV irradiation, ultrasonic treatment, electrolysis, solar disinfection, and slow sand filtration.
Currently, there are few solutions being employed in third world settings for communities. The current solutions are either for one household or are part of an existing infrastructure and therefore are not portable. Slow sand filtration is used successfully to provide potable water for individual households. Tablet …
L'Oreal Waste Minimization,
2011
University of Arkansas, Fayetteville
L'Oreal Waste Minimization, Caitlin Burns, Joe Baugh, Allen Busick, Ryan Black, Emily Evans, Matthew Margis
Chemical Engineering Undergraduate Honors Theses
The purpose of this design project is to reduce the amount of waste being generated at L’Oreal’s North Little Rock manufacturing facility. To accomplish this, the design team visited the North Little Rock manufacturing facility to examine the areas producing the most waste. After gaining a detailed understanding of these areas, the UP1 production line was identified as one of the largest opportunities for waste reduction in the L’Oreal manufacturing facility. In the UP1 processing area, mascara is mixed in large mixing tanks and then pumped in to barrels to be packaged. The 2,000 liter and 1,000 liter Olsa tanks …
Algae To Butanol: Our Contribution To People, Prosperity, And Planet,
2011
University of Arkansas, Fayetteville
Algae To Butanol: Our Contribution To People, Prosperity, And Planet, Ethan Carter
Chemical Engineering Undergraduate Honors Theses
Phase I investigated a method for producing butanol from algae using a novel automated hydrolysis, fermentation, and separation process. The Phase I research team sought to experimentally optimize individual steps and parameters of the process, design and build an automated unit to produce fuel-grade butanol from algae in a batch process, evaluate the sustainability and large scale economics of the process, and design an outreach program encouraging energy and environmental awareness centered around K-12 students. The team used macroalgae samples obtained through the generosity of the City of New York from Jamaica Bay to test the equipment and viability of …
Design And Construction Of A Novel Automated Unit For Conversion Of Algae To Butanol,
2011
University of Arkansas, Fayetteville
Design And Construction Of A Novel Automated Unit For Conversion Of Algae To Butanol, Hiroko Nakao
Chemical Engineering Undergraduate Honors Theses
Phase I investigated a method for producing butanol from algae using a novel automated hydrolysis, fermentation, and separation process. The Phase I research team sought to experimentally optimize individual steps and parameters of the process, design and build an automated unit to produce fuel-grade butanol from algae in a batch process, evaluate the sustainability and large scale economics of the process, and design an outreach program encouraging energy and environmental awareness centered around K-12 students. The team used macroalgae samples obtained through the generosity of the City of New York from Jamaica Bay to test the equipment and viability of …
