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Filtering by: Alternative title ssim EC 1012 Remove constraint Alternative title ssim: EC 1012 Degree Field Chemical Engineering Remove constraint Degree Field: Chemical Engineering

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  • Analyzing the Kinetics and Thermodynamics of Surface Reactions using Density Functional Theory

    Creator:
    Sprowl, Lynza H.
    Abstract:
    The interactions of chemical species with a solid surface play a role in many everyday applications such as heterogeneous catalysis, corrosion, and degradation reactions. Understanding the reaction kinetics and thermodynamics via rate constants and equilibrium constants, which require knowledge of the adsorbed species’ entropy, is essential for tuning these surface...
    Resource Type:
    Dissertation

  • Kinetic and molecular effects of sulfate reduction on a dechlorinating culture under chemostat growth conditions

    Creator:
    Berggren, Dusty Rose V.
    Abstract:
    Chlorinated ethenes are common groundwater contaminants that may be treated through in-situ bioremediation. Relationships between the reducing environment, available electron donors and acceptors, reaction kinetics, and microbial community composition must be further understood to successfully engineer remediation schemes in the complex subsurface environment. This thesis work investigated the effect of...
    Resource Type:
    Masters Thesis
    Full Text:
    ) using the standard Ks parameter set for the a) 2L-781 b) 2L-1012, c) 2L-1089, d) 2L-1172 high

  • A microcomputer software package for simulation of non-ideal aqueous electrolyte systems at equilibrium

    Creator:
    Sinquefield, Scott A.
    Abstract:
    The non-ideal aqueous electrolyte simulator (NAELS) is composed of three major parts: a Newton-Raphson non-linear optimization program written by Weare, et al (1987); an activity coefficient subroutine for non-ideal electrolyte systems based on Pitzer's model; and an extensive, user expandable database. It is robust, stable, and requires neither thermodynamic data...
    Resource Type:
    Masters Thesis
    Full Text:
    EA ji jn = bi i=1, mo (mass balance) j=1 z J .nJ --= 0 s=1, ec j in s (charge balance) for all j

  • Simulation model of a total recycle urea process

    Creator:
    Yazhari, Faramarz
    Abstract:
    A steady-state computer simulation was developed for the Chemico Urea Process which is owned and operated by Reichhold Chemicals, Inc., St. Helens, Oregon. The DISCOSSA executive system was used to process information input and output and to automatically converge the complex recycle calculations in this process. The models developed in...
    Resource Type:
    Masters Thesis
    Full Text:
    . c. 1 For H2O and NH3 the parameters a.(0) and a.(1) are given as: _(1)a, 0.12522 108 1.9902 1012

  • Fouling characteristics of cooling tower water containing corrosion inhibitors

    Creator:
    Santoso, Elisabeth
    Abstract:
    The fouling characteristics of cooling tower water containing various corrosion inhibitors and other additives on heat transfer surface have been investigated. Corrosion inhibitors investigated included zinc-chromate and phosphates. In addition, additives including polyacrylate and phosphonate (HEDP and AMP) were used to determine their effectiveness as antifoulants. The tests were conducted...
    Resource Type:
    Dissertation
    Full Text:
    -ed)/ec)) to yield the values of ec and Rf*. Rf is the fouling resistance predicted by the regression

  • Techno-economic analysis of algal lipid fuels

    Creator:
    Xiang, Xuwen
    Abstract:
    A techno-economic analysis (TEA) was performed to evaluate the technology, cost, and resource use for algal biofuel production based on today’s economics and technology. The basic goal of this study is to develop a model to calculate the mass and energy balances and costs to produce 10 million gal of...
    Resource Type:
    Masters Thesis

  • Solution-based deposition of functional thin films : development of a glucose biosensor and thermal processing of CZTS nanoparticle films

    Creator:
    Durgan, Christopher J.
    Abstract:
    The development of solution-based methods for deposition of different thin film material is presented as an alternative to high cost vacuum-based methods. For certain materials, vacuum techniques are unsuitable for processing. Additionally, vacuum-based processes present high capital costs associated with equipment, and slow processing times. Atmospheric pressure solution based techniques...
    Resource Type:
    Masters Thesis

  • Characterization of CoGe Thin Films and Powders

    Creator:
    Pfau, Andrew James
    Abstract:
    Cobalt germanides have been widely studied as semiconductor contact materials, but recent theoretical studies suggest that they may also be excellent catalysts for methane steam reforming with stabilities and activities comparable to noble metal catalysts. In order to study the catalytic activity of cobalt germanides, it is critical to first...
    Resource Type:
    Masters Thesis
    Full Text:
     on the absorption energies of oxygen, EO and carbon, Ec, as descriptors.   …..    8     1.3  Co‐Ge

  • Hydrodynamic effects of particle chaining in liquid-solid magnetofluidized beds : theory, experiment, and simulation

    Creator:
    Cruz-Fierro, Carlos Francisco
    Abstract:
    In a fluidized bed of magnetically susceptible particles, the presence of a magnetic field induce the formation of particle chains due to interparticle magnetic forces. The resulting effect is a change in the overall spatial distribution of the particles, transitioning from a random, isotropic distribution to an ordered, anisotropic distribution....
    Resource Type:
    Dissertation

  • Strategies for process flowsheeting

    Creator:
    Sanz, Carlos C.
    Abstract:
    Two packages of subroutines were developed to perform material balances on chemical processes using the simultaneous modular approach and the equation-based approach. The performances of these packages were compared for five different processes under at least two conditions: one with no design specifications, and one with two or more design...
    Resource Type:
    Masters Thesis