Concept

Ethanol fuel in Brazil

Related publications (129)

Promoting Bioethanol Production through Clean Development Mechanism: Findings and lessons learnt from ASIATIC project

Global climate change mitigation policies call for increasing use of biomass fuels as renewable substitutes to fossil energy resources. Quantified targets for biofuels introduction in to the market exist in the United States, the European Union, and a numb ...

2005

Refining sweet sorghum to ethanol and sugar: economic trade-offs in the context of North China

Edgard Gnansounou, Arnaud Dauriat

Reducing the use of non-renewable fossil energy reserves together with improving the environment are two important reasons that drive interest in the use of bioethanol as an automotive fuel. Conversion of sugar and starch to ethanol has been proven at an i ...

2005

Filling Kinetics of Liquids in Nanochannels down to 27 nm Deep by Capillary Force

Nico de Rooij

We report the filling kinetics of different liquids in nanofabricated capillaries with rectangular cross-section by capillary force. Three sets of channels with different geometry were employed for the experiments. The smallest dimension of the channel cro ...

2005

Monitoring and control of Gluconacetobacter xylinus fed-batch cultures using in situ mid-IR spectroscopy

Urs von Stockar, Ian William Marison, Sergio Valentinotti, Henri Kornmann

A partial least-squares calibration model, relating mid-IR spectral features with fructose, ethanol, acetate, gluconacetan, phosphate and ammonium concns. has been designed to monitor and control cultivations of Gluconacetobacter xylinus and prodn. of gluc ...

2004

Control of yeast fed-batch process through regulation of extracellular ethanol concentration

Urs von Stockar, Sergio Valentinotti, Christopher Cannizzaro

At high growth rates, the biomass yield of baker's yeast (Saccharomyces cerevisiae) decreases due to the prodn. of ethanol. For this reason, it is std. industrial practice to use a fed-batch process whereby the specific growth rate, m, is fixed at a level ...

Springer-Verlag2004

Influence of residual ethanol concentration on the growth of Gluconacetobacter xylinus I 2281

Urs von Stockar, Ian William Marison, Henri Kornmann

The influence of residual ethanol on metab. of food grade Gluconacetobacter xylinum I 2281 was investigated during controlled cultivations on 35 g/l glucose and 5 g/l ethanol. Bacterial growth was strongly reduced in the presence of ethanol, which is unusu ...

Springer-Verlag2003

Methodology for real-time, multianalyte monitoring of fermentations using an in-situ mid-infrared sensor

Urs von Stockar, Ian William Marison, Christopher Cannizzaro, Martin Rhiel, Henri Kornmann

An in-situ, mid-IR sensor was used to monitor the major analyte concns. involved in the cultivation of Gluconacetobacter xylinus and the prodn. of gluconacetan, a food-grade exopolysaccharide. To predict the analyte concns., three different sets of std. sp ...

2003

Quantification and characterization of uncertainty in metabolic engineering

Vassily Hatzimanikatis

One of the central problems in metabolic engineering deals with the identification of the "rate limiting steps", i.e. enzymes whose activities one should manipulate towards the achievement of a desirable performance. However, uncertainty about the kinetic ...

2003

O-17 NMR spectroscopy of sulfolenes (2,5-dihydrothiophene-1,1-dioxides) and sultines (3,6-dihydro-1,2-oxathiin-2-oxides)-experiment and quantum calculations: Synthesis of 4,9-dioxo-1,2-oxathiacyclodecane-2-oxide, a new heterocycle

Pierre Vogel, Kurt Schenk

The products of hetero-Diels-Alder reactions (sultines) and cheletropic addition reactions (sulfolenes) between 1,3-dienes and sulfur dioxide can be distinguished by their O-17 NMR shifts. Experimental data have been collected for derivatives of 3,6-dihydr ...

2000

Comprehensive in-situ Bioreactor Monitoring and Control Based on a Mid-Infrared Spectroscopic Sensor System

Urs von Stockar, Ian William Marison, Sergio Valentinotti, Christopher Cannizzaro, Martin Rhiel

Comprehensive in-situ bioreactor monitoring and control based on a midinfrared spectroscopic sensor system M. Rhiel1, C. Cannizzaro1, S. Valentinotti2, I. Marison1, U. von Stockar1 1 Institute of Chemical Engineering, 2Institute of Automatic Control Swiss ...

2000

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