[PDF] Top 20 Braz. J. Chem. Eng. vol.23 número4

... Different culture media based on deproteinized cheese whey (DCW) were tested and the best composition (containing DCW, supplemented with yeast extract 1 %, and peptone 3 % (w/v)) was ch[r] ... See full document

... The spectra of the A-3 fraction (Figure 2), obtained in the third separator the first condition of extraction, had signals identical to the ones described in the literature for the 2[r] ... See full document

... The aim of the work is to develop a suitable complex culture medium for red pigment production by Monascus ruber , based mainly the utilization of corn steep liquor, besides monosodi[r] ... See full document

... Brazilian Journal of Chemical Engineering Errata. 1.[r] ... See full document

... All the equations referred to so far – (1) to (5), (11) and (16) to (25) as well as those for the transfer properties and coefficients – were employed as substitution equations, being satisfied within the computer ... See full document

... corresponding to the fourth mass loss event detected by the TG/DTG analysis, the IR spectra of the niobium complex that decomposed at 400° and 600°C show a band corresponding to a C=O[r] ... See full document

... In this paper we present the pure-component equilibrium data for adsorption of methane, ethane, and butane on the nanoporous activated carbon material prepared using coconut shell as [r] ... See full document

... The results of the present paper confirm that propylene formation on x Mo/21V/Nb catalysts is due to the presence of acid sites of weak and moderate strength (Brönsted acid sites) ge[r] ... See full document

... In the present work, photocatalysis has been used as tertiary treatment for petroleum refinery wastewaters in order to reduce the amount of pollutants to the level of the regulatory d[r] ... See full document

... Rodriguez (1998) studied the influence of particle diameter and solid particle mass flow rate on the bed-to-tube heat transfer coefficient in a shallow fluidized bed heat exchanger wi[r] ... See full document

... Two different procedures are used for the calculation of the solids phase pressure and stress tensor: the traditional procedure and an algebraic version of the kinetic theory of granul[r] ... See full document

... Although a steady flow was observed during the experiments, an unsteady numerical simulations at three different rotational frequencies of the mixing process had to be performed becau[r] ... See full document

... Previous models of wastewater treatment systems were based on the Monod model, which assumes that the soluble biodegradable organic matter in the effluent has the same characteristics[r] ... See full document

... In this article we describe the Aureobasidium pullulans fermentation process using in addition to sucrose as a carbon source, refined soybean oil (SBO) at different concentrations bot[r] ... See full document

... Nichita, D.V., Broseta, D. and de Hemptinne, J.-C., 2004. Multiphase Equilibrium Calculation Using Reduced Variables, paper SPE 89439, Proc. The SPE/DOE 14 th Symposium on Improved Oil Recovery, Tulsa, OK, April ... See full document

... Chemometric study results demonstrated that 20 days of the experimental system function were sufficient for achieving the maximum efficiency of sorption of the heavy metals studied by [r] ... See full document

... The effects of substrate concentration (sucrose and inulin), pH and temperature on inulinase activity were verified using four factorial design and surface response analysis.. Using su[r] ... See full document

... Therefore, for the present case, the parameters calculated for β =1.3 define the optimal operating conditions for a SMB adsorber with 3 columns per section given a required minimum p[r] ... See full document

... A diagram walking algorithm based on available experimental data was developed to evaluate the effect of ethanol on the efficiency of water extraction under different process conditio[r] ... See full document

... Subtle changes in the surfactant architecture have been shown to cause very significant reductions in the pressure required for stabilization of reverse microemulsions of water in CO[r] ... See full document