Index Catalog // ScholarsArchive@OSU

The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide

Creator:: Yi, Jung-Seok
Abstract:: The extraction of pentachlorophenol (PCP) from pressure treated wood wafers with supercritical carbon dioxide has been studied. Experimental data were obtained for the effects of pressure (17.5 - 25.0 MPa), temperature (313 - 353 K), flow rate (1 - 3 ml/min at supercritical conditions), and sample size (0.8 x 10...
Resource Type:: Masters Thesis
Full Text:: Pentachlorophenol from Pressure Treated Wood Using Supercritical Carbon Dioxide Abstract Approved : Keith L

Modeling a heat regenerator-reactor with temperature dependent gas properties

Creator:: Kulkarni, Milind S.
Abstract:: This thesis examines the transient response of a packed bed heat regenerator when heated from an initial uniform bed temperature. Very large (1700 K) temperature differences were studied as well as the effect of simultaneous chemical reaction in the gas phase. First the effects of temperature on physical and transport...
Resource Type:: Masters Thesis
Full Text:: (1700 K) temperature differences were studied as well as the effect of simultaneous chemical reaction

Modeling large temperature swings in heat regenerators using orthogonal collocation

Creator:: Kokron, Carlos J.
Abstract:: This thesis examines the transient performance of packed bed heat regenerators when very large temperature differences are involved. The effects of gas temperature on the key gas physical properties of velocity, density and heat capacity were studied via simulation. Three models were developed and compared. The first model (HRKDV) considers...
Resource Type:: Masters Thesis
Full Text:: Swings in Heat Regenerators Using Orthogonal Collocation. Redacted for Privacy Abstract approved: Keith

Solubility of biocides in pure and modified supercritical carbon dioxide

Creator:: Junsophonsri, Sarawadee
Resource Type:: Masters Thesis
Full Text:: Modified Supercritical Carbon Dioxide. Abstract approved: Keith L. Levien A continuous flow apparatus

Diffusion coefficients of biocides in supercritical carbon dioxide

Creator:: Kittidacha, Witoon
Resource Type:: Masters Thesis
Full Text:: like to express my appreciation to my major professor, Dr. Keith L. Levien for his support, patience

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
Full Text:: ID for a Given Equipment 88 Module IV-1 Summary of Test Problems 98 IV-2 Feed Composition and K

Simulation and optimization of an offshore natural gas process

Creator:: Chaiwanakupt, Nopasit
Abstract:: The principal objective of this study was to investigate process simulation and optimization of an existing offshore natural gas process which needed profitability improvements. Optimization was done using two alternative approaches: a global approach (response surface methodology) or a local approach (successive quadratic programming). The global approach was characterized by...
Resource Type:: Masters Thesis
Full Text:: Process Abstract approved: Keith L. Levien The principal objective of this study was to investigate

Experimental studies of internal model control

Creator:: Couturier, Patrick
Abstract:: A review of Single-Input Single-Output Internal Model Control (IMC) is presented, showing its relationships to the Dahlin algorithm, PID type controllers for simple models with and without deadtime and Smith predictor control. The effect of errors in the time constant and the gain of a first order model with deadtime...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy Dr. Keith Levien A review of Single-Input Single-Output Internal Model Control (IMC

Use of orthogonal collocation in the dynamic simulation of staged separation processes

Creator:: Matandos, Marcio
Abstract:: Two basic approaches to reduce computational requirements for solving distillation problems have been studied: simplifications of the model based on physical approximations and order reduction techniques based on numerical approximations. Several problems have been studied using full and reduced-order techniques along with the following distillation models: Constant Molar Overflow, Constant...
Resource Type:: Masters Thesis
Full Text:: the Dynamic Simulation of Staged Separation Processes Redacted for Privacy Abstract approved: Keith

Deposition of chemicals in semi-porous solids using supercritical fluid carriers

Creator:: Sahle-Demessie, Endalkachew
Resource Type:: Dissertation
Full Text:: Semi-porous Solids Using Supercritical Fluid Carriers. Abstract approved: Keith L. Levien

ScholarsArchive@OSU

The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide

Modeling a heat regenerator-reactor with temperature dependent gas properties

Modeling large temperature swings in heat regenerators using orthogonal collocation

Solubility of biocides in pure and modified supercritical carbon dioxide

Diffusion coefficients of biocides in supercritical carbon dioxide

Strategies for process flowsheeting

Simulation and optimization of an offshore natural gas process

Experimental studies of internal model control

Use of orthogonal collocation in the dynamic simulation of staged separation processes

Deposition of chemicals in semi-porous solids using supercritical fluid carriers

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search