Chemical Engineering Practice

Maskless Fabrication of Nanowells Using Chemically Reactive Colloids

Oct 16, 2011
Darrell Velegol
We describe a maskless process for the fabrication of nanowells on a silicon substrate using chemically reactive nanoparticles. Positively-charged amidine-functionalized polystyrene latex (APSL) colloids are adhered onto a silicon wafer, and hydrolysis of the particles' amidine groups generates...

Solubility of CO2 and H2 In PDMS and PEGDME At 25 – 120 Oc

Oct 16, 2011
Robert M. Enick
Advanced gasification power plants will employ the water-gas shift reaction to produce a high pressure gas-phase mixture containing CO 2 , H 2 and water. This shifted syngas mixture at elevated pressures provides ample driving force for the use of physical solvents that will selectively absorb, but...

Mechanistic Modeling of Fast Pyrolysis of Cellulose to Predict Bio-Oil Composition

Oct 16, 2011
Vinu Ravikrishnan
Fast pyrolysis, a potential strategy for the production of transportation fuels from biomass, involves a complex network of competing reactions, which result in the formation of bio-oil, non-condensable gaseous species, and solid char. Bio-oil is a mixture of anhydro sugars, furan derivatives, and...

The Design of Advanced Functional Membranes for Bioseparations

Oct 16, 2011
Scott M. Husson
Market demand is increasing rapidly for biotherapeutics such as recombinant proteins, monoclonal antibodies, viral vaccines and plasmid DNA. With the advent of molecular biotechnology and engineered cell lines, upstream production processes have made unprecedented progress in the last decade,...

Ionic Liquids: A Potential Role In the Sulfur Family of Thermochemical Cycles

Oct 16, 2011
Nick AuYeung
The Sulfur-family of thermochemical water splitting cycles has already been identified as an ideal application of ionic liquid solvents for SO 2 absorption. 1 Here, ionic liquids are proposed as suitable reaction media in both the Sulfur-Sulfur cycle (a new cycle based upon the Sulfur-Iodine Cycle...

Deepwater Drilling Regulations In the Gulf of Mexico

Oct 16, 2011
Ian Sutton
Deepwater Regulations in the Gulf of Mexico The Deepwater Horizon incident (DWH) of April 2010 led to many changes in deepwater operations in the Gulf of Mexico. Not the least of those changes were to do with regulations. In the three months following DWH two important changes to the regulatory...

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