Effects of Bioethanol Pretreatments on the Broth Concentration and its Impacts in the Optimal Design of Product Separation and Purification Processes

Autor: Carlo Edgar Torres Ortega, André Rodrigues Gurgel da Silva, Ben-Guang Rong
Rok vydání: 2016
Předmět:
DOI: 10.1016/b978-0-444-63428-3.50102-8
Popis: Bioethanol is considered one of the most promising substitute for fossil fuels, however its competitiveness as a bulk commodity highly depends on the process technology. The pretreatment step has a major role on the bioethanol fermentation broth concentration. Three process key-factors were evaluated and the total annual cost (TAC) was compared for three different technologies: acid pretreatment, liquid hot water (LHW) and ammonia fiber explosion (AFEX). Savings of 5.5% and 5.1% on total annual costs regarding product separation and purification and an increase in bioethanol productivity of 20% and 20.6% were obtained for LHW and AFEX methods respectively.
Databáze: OpenAIRE