Ben J. McCoy

TL;DR: In this paper, the extraction of caffeine from whole coffee beans with supercritical carbon dioxide was studied in a continuous-flow extraction apparatus and the decaffeination rates were determined as a function of CO2 flow rate, temperature and pressure by continuously monitoring the caffeine in the effluent with a flame ionization detector.

TL;DR: In this article, the thermal degradation of poly(styrene-allyl alcohol) (PSA) in solution is explored theoretically and experimentally, and the results are interpreted by a mathematical model based on the continuous kinetics for specific and random degradation processes.

TL;DR: For rarefied gases, the collision frequency of the Krook kinetic equation is expressed as the sum of wall and gas collision frequencies as discussed by the authors, and the effective transport coefficients arise from the Chapman-Enskog theory, and are similar to those proposed by other methods.

TL;DR: In this article, a simple quasisteady-state theory for concentration polarization based on a film model of mass transfer was proposed to describe the increase in permeability of a sucrose solution in cylindrical cellulose acetate membranes.

TL;DR: In this paper, the authors developed models for isothermal desorption in a fixed bed of adsorbent particles and showed that the effect of temperature on fractions desorbed indicate a reversal of the temperature dependence of the adsorption isotherm as the supercritical pressure is increased.