Desarrollo sostenible del bioetanol de tercera generación: Desafíos tecnológicos, económicos y de gestión en biorrefinerías algales
Resumen
La transición energética global ha intensificado la búsqueda de alternativas sostenibles que permitan reducir la dependencia de los combustibles fósiles y mitigar sus efectos ambientales. En este escenario, el bioetanol de tercera generación producido a partir de biomasa ha despertado creciente interés por su elevada productividad, su independencia respecto a cultivos destinados a la alimentación y su potencial integración en modelos de economía circular. El objetivo de la investigación fue evaluar los avances tecnológicos y los factores tecnoeconómicos que influyen en la producción sostenible de bioetanol de tercera generación a partir de microalgas y macroalgas. Para ello, se desarrolló una revisión de literatura en bases de datos científicas indexadas, orientada a identificar tendencias recientes, limitaciones estructurales y oportunidades emergentes en este campo. Los resultados evidencian progresos relevantes en etapas clave del proceso, como el cultivo de biomasa, el pretratamiento, la hidrólisis, la fermentación y el aprovechamiento de coproductos. No obstante, persisten desafíos asociados a los elevados costos operativos, las dificultades de escalado industrial, la demanda energética de los procesos y la incertidumbre sobre su viabilidad económica. Se concluye que enfoques integrados basados en biorrefinerías, digitalización y evaluación tecnoeconómica se perfilan como estrategias clave para fortalecer su desarrollo industrial sostenible.
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