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Full-Text Articles in Engineering

Design And Cost Analysis Of Acrylic Acid Plant, Adam Ferrier May 2019

Design And Cost Analysis Of Acrylic Acid Plant, Adam Ferrier

Chemical Engineering Undergraduate Honors Theses

The purpose of this project was to model and design a plant to produce 75,000 tons per year of acrylic acid. Using the design in section B.9 of Richard Turton’s Analysis, Synthesis, and Design of Chemical Processes as a starting point, a plant was designed based around the partial oxidation of propylene to acrylic acid. The final plant design produces about 86,000 tons per year of acrylic acid. Using an interest rate of 10%, the plant has a discounted cash flow rate of return of 32% over 2 years of startup and 10 years of operation ...


Extraction Of Thorium Dioxide And Other Ree Oxides From Monazite Ore, Bradley M. Bennett, Julia Johnson, Kelsey Hay, Chelsea Connolly-Horton May 2019

Extraction Of Thorium Dioxide And Other Ree Oxides From Monazite Ore, Bradley M. Bennett, Julia Johnson, Kelsey Hay, Chelsea Connolly-Horton

Chancellor’s Honors Program Projects

No abstract provided.


Anisotropy And Aggregation In Self-Assembled Polymer Nanocomposites, Benjamin Joseph Lindsay Jan 2019

Anisotropy And Aggregation In Self-Assembled Polymer Nanocomposites, Benjamin Joseph Lindsay

Publicly Accessible Penn Dissertations

Polymer nanocomposites (PNC) are an exciting class of materials with a wide array of applications. Whether the desired application involves isotropic or anisotropic polymer and particle structures, controlling aggregation and/or anisotropy in PNCs remains crucial to engineering composites with desired properties. Many methods have been developed to address these challenges. Three methods of interest include 1) the inclusion of anisotropic particles in the PNC, 2) block copolymers used as anisotropic templates to pattern particles, and 3) particle surface chemistry modification to increase dispersion. Significant experimental progress has been made in all three of these methods, but deeper fundamental understanding ...


Transient Multiphase Flow Simulation For Unloading Of Frac Hit Gas Wells, Miguel Angel Cedeno Moreno Jan 2019

Transient Multiphase Flow Simulation For Unloading Of Frac Hit Gas Wells, Miguel Angel Cedeno Moreno

Doctoral Dissertations

"This work seeks to develop a fully step-by-step transient multiphase flow simulation valid for unloading gas wells using nitrogen. It studies the behavior of nitrogen for unloading horizontal gas wells with gas injection in the annulus. The work investigates unloading non-Newtonian fluids such as those which invade offset wells when a frac hit occurs during hydraulic fracturing operations in unconventional wells. The effect of varying tubing depth and injection pressure are included in the study.

Results show that as the plastic viscosity increases, the nitrogen volume and time to unload will be increased. As tubing depth increases, the nitrogen volume ...