Ethanol Production Processes : ›DRY MILLING ›WET MILLING ›CELLULOSIC BIOMASS
CELLULOSIC BIOMASS
This process flow diagram shows the basic steps in production of ethanol from cellulosic biomass. Note that
there are a variety of options for pretreatment and other steps in the process and that several technologies
combine two or all three of the hydrolysis and fermentation steps within the shaded box. Chart courtesy of
the National Renewable Energy Lab.*
*Information & chart cited from www.ethanolrfa.org/pages/how-ethanol-is-made |