[PDF] Top 20 Braz. J. Chem. Eng. vol.19 número3

... The values of total reactor volume, average treated volume per cycle, biomass content in the reactor, average non-filtered influent substrate concentration and average non- filtered e[r] ... See full document

... a) Three patterns of biomass immobilization could be observed on the polyurethane foam matrices: cell aggregates entrapped in matrix pores, thin biofilms attached to inner polyuretha[r] ... See full document

... A simplified model for drying of solids in constant-rate period in a batch fluidised bed is developed, considering the bed to made of dense phase and bubble phase with heat and mass t[r] ... See full document

... In the present work the use of neural networks for the simulation and optimization of the separative performance of a gas centrifuge is proposed using new experimental data acquired f[r] ... See full document

... The data used for the identification are generated via simulation of a rigorous model of the column based on first principles, implemented with the commercial package HYSYS.Plant ® , tun[r] ... See full document

... Figure 6 shows the variation of slurry axial velocity with radial position for two different heights (axial position) inside the reactor.. This figure shows the upward movement in the[r] ... See full document

... The n-butane conversion was carried out in a fixed bed reactor operated under steady state conditions at 350 º C and atmospheric pressure. The feed stream was a mixture of nitrogen and n-butane at a molar ratio of 9, ... See full document

... 1) k and C constants of Hand's equation (Eqn. 1) were obtained using experimental liquid-liquid ternary equilibrium data. 2) The binodal curve of the ternary system under study wa[r] ... See full document

... This work presents a study that was carried out on the drying of fine particles, in this case a crystalline organic acid, in a mechanically stirred fluidized bed.. The drying kinetics c[r] ... See full document

... (1997) using the selected species, the production medium initially used was optimized, giving the following composition: soy milk 30 g/L, glucose 20 g/L and CaCO3 2 g/L, for which a [r] ... See full document

... and Vidal, I., Liquid-Liquid Equilibria of the Ternary Mixtures Water + Propionic Acid + Methyl Ethyl Ketone and Water + Propionic Acid + Methyl Propyl Ketone, J. and Thies, M.C., Liquid[r] ... See full document

... The simple components of a family's Basic BOM, referred to as compound variant in this model, have associated parameters that, when given specific values, determine the Product BOM of ea[r] ... See full document

... Based solely on RPN, it is not possible to differentiate the effect of the desired performance on the closed-loop response, but using two new indices, RPN RATIO and RPN DIFF , it is pos[r] ... See full document

... Green carbon electrode samples were prepared with a mixture of biopitch and ground charcoal in a hot modeling under 60 MPa of pressure (Coutinho and Luengo, 1994).. Biopitch as the binde[r] ... See full document

... Table 1 reports the results obtained and Figure 3 shows the effect of the flow rate on the mass ratio of solute in the supercritical phase at the measuring cell outlet.. For experiments [r] ... See full document

... parameters can affect membrane morphology and final properties of the membrane, such as the distance between the spinneret and the precipitation bath (air gap), temperature of the precip[r] ... See full document

... Boitiaux, J.P. Cosyns, J. and Robert, E., Additive Effects in the Selective Hydrogenation of Unsaturated-Hydrocarbons on Platinum and Rhodium Catalysts II – Influence of Various Compounds Containing Phosphorous, ... See full document

... In this work, the NRTL (nonrandom, two-liquid) model was used to correlate the liquid-liquid equilibria for aqueous two- phase polymer-salt solutions, expressed in mass fraction instead [r] ... See full document

... subtilis R14 in a batch bioreactor using a molasses medium, and a preliminary study of separation of biomass from the fermentation broth by sedimentation.. MATERIAL AND METHODS.[r] ... See full document

... (1998) developed a nonlinear planning model for refinery production that can represent a general topology. The model relies on a general representation of refinery processing units in wh[r] ... See full document