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Now showing items 61-70 of 133
Maxwell-Stefan modeling of mass transfer effects in reactive chromatography
(2009)
A rigorous dynamic theoretical model was developed and implemented for simultaneous diffusion, reaction, and adsorption inside porous solids for the fixed bed chromatographic reactor (FBCR), true moving bed chromatographic ...
Development of an empirical model to predict the mean residence time in a tablet press feeder
(2017)
The die filling process is a continuous operation that is crucial to comply with the specifications and quality attributes of a pharmaceutical tablet. Die filling is usually performed using a rotary tablet press that has ...
Novel sulfonated ether based block copolymer ionomers as proton exchange membranes for fuel cells applications
(2017)
This investigation studied the morphology, hydration, and transport properties of different membranes for direct methanol fuel cell (DMFC) applications. First, sulfonated poly(ether ether ketone) (SPEEK) membranes were ...
Computational study of the physical adsorption of CO₂ on novel sorbents based on porous coordination polymers
(2017)
CO2 capture has motivated the design and synthesis of a large number of adsorbent materials. An example of these materials are the coordination pillared-layers (CPLs), which have emerged as possible candidates for CO2 ...
Design of composite protein microcrystals for the sustained oral delivery of antigens
(2015)
Oral immunization is a promising method to decrease access of allergens and pathogens to the body. Oral delivery of antigens is challenged by the anatomical conditions of the gastrointestinal tract, such as degradation by ...
Functionalization and characterization of Sulfonated Poly (Styrene-Isobutylene-Styrene) membranes for fuel cells and specialty separation applications
(2014)
In this study, the transport properties of poly(styrene-isobutylene-styrene) (SIBS) block copolymer were determined as a function of sulfonation level (0-94.9 %), counter ion substitution (Ba+2, Ca+2, Mg+2, Mn+2, Cu+2, ...
Synthesis, characterization and detemplation of thermally unstable 3-D Metal-Substituted Aluminophosphates.
(2009)
The extent of the detemplation process in Me-SBE (Me = Co2+, Mg2+ and Mn2+) aluminophosphates was investigated. Hydrothermal synthesis conditions were optimized to obtain materials with minimal phase impurities. SEM analysis ...
Silicoaluminophosphate nanoporous materials for carbon dioxide adsorption at low concentration
(2011)
The incorporation of extraframework Sr2+ and Ba2+ cations onto silicoaluminophosphate (SAPO-34) zeolitic materials has been proven to influence their adsorptive properties. In this study, three approaches were employed to ...
Selective nanoporous sorbents for gas based separations: Ion exchanged silicoaluminophosphates and titanosilicates
(2009-05)
Two specific sorbents were targeted in this research work: silicoaluminosphosphates (SAPOs) and titanium silicates. For the former, Na+ -SAPO-34 sorbents were ionexchanged with several cations (Ag+, Mg2+, Ca2+, Sr2+, Ti3+, ...
Automation of a fluid bed dryer using multi-variant near infrared spectra and model predictive control
(2010)
The Fluidized Bed Dryer (FBD) is a common unit used in the pharmaceutical industry for its unique advantages when working with powders. With recent development in technology and environmental awareness, a desire to optimize ...