Importance of Small Pores in Microcrystalline Cellulose for Controlling Water Distribution during Extrusion–Spheronization

simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Importance of water polarization for ion permeation in narrow pores

0009-2614/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.cplett.2009.06.069 * Corresponding author. Fax: +61 2 9351 7726. E-mail address: [email protected] (S. Ku Molecular dynamics (MD) simulations are mostly performed using non-polarizable force fields. This approximation works in homogeneous systems but there are situations – such as pores, cavities and interfaces – where an ...

Silicified microcrystalline cellulose pdf

Transport of water in small pores.

Experimental measurements of the thermal expansion coefficient (alpha), permeability (k), and diffusivity (D) of water and 1 M solutions of NaCl and CaCl(2) are interpreted with the aid of molecular dynamics (MD) simulations of water in a 3 nm gap between glass plates. MD shows that there is a layer approximately 6 A thick near the glass surface that has alpha approximately 2.3 times higher and...

Enthalpy of Combustion of Microcrystalline Cellulose

A test substance with characteristics and properties similar to those of cellulose· based solid waste products is needed to calibrate calorimeters and combustors which will be routinely burning these materials to determine their calorific values precisely for use in commerce. Microcrystalline cellulose was found to be a good calibrant for this purpose. The enthalpy of combustion of microcrystal...