From: Improved ethanol yield and reduced minimum ethanol selling price (MESP) by modifying low severity dilute acid pretreatment with deacetylation and mechanical refining: 2) Techno-economic analysis
Raw material cost
Price ($2007)
Corn stover
$58.50/bushel
Diammonium phosphate
$182.30/ton
Sulfuric acid
$32.10/dry ton
NH3
$300.00/ton
Caustic
$150.00/ton