Volume 42, Issue 5 pp. 1088-1100
Research Article

Alternatives for the Purification of the Blend Butanol/Ethanol from an Acetone/Butanol/Ethanol Fermentation Effluent

Carlos Alfredo Contreras-Vargas

Carlos Alfredo Contreras-Vargas

Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Noria Alta S/N Col. Noria Alta, 36050 Guanajuato, México

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Fernando Israel Gómez-Castro

Corresponding Author

Fernando Israel Gómez-Castro

Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Noria Alta S/N Col. Noria Alta, 36050 Guanajuato, México

Correspondence: Fernando Israel Gómez-Castro ([email protected]), Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Noria Alta S/N Col. Noria Alta, 36050 Guanajuato, México.Search for more papers by this author
Eduardo Sánchez-Ramírez

Eduardo Sánchez-Ramírez

Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Noria Alta S/N Col. Noria Alta, 36050 Guanajuato, México

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Juan Gabriel Segovia-Hernández

Juan Gabriel Segovia-Hernández

Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Noria Alta S/N Col. Noria Alta, 36050 Guanajuato, México

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Ricardo Morales-Rodríguez

Ricardo Morales-Rodríguez

Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Noria Alta S/N Col. Noria Alta, 36050 Guanajuato, México

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Zeferino Gamiño-Arroyo

Zeferino Gamiño-Arroyo

Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Noria Alta S/N Col. Noria Alta, 36050 Guanajuato, México

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First published: 12 March 2019
Citations: 13

Abstract

Biobutanol is a biofuel with potential to substitute gasoline. It can be generated through fermentation of lignocellulosic material, by which acetone, butanol, and ethanol (ABE) are obtained and subsequently separated. Nevertheless, the blend ethanol/butanol itself is a fuel, so its separation could be not even necessary. An alternative is proposed to simplify the purification step of the ABE mixture, avoiding the separation of the ethanol/butanol blend. Intensification alternatives are suggested for the resulting structure. The proposed schemes are optimized through a stochastic approach, minimizing the total annual cost and the eco-indicator 99. The individual risk index is computed for selected designs. The suggested designs reduce the individual risk index by around 30–66 %.

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