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› Αρχική › Science Corners › Energy Corner › ΑΠΕ-Ανανεώσιμες Πηγές Ενέργειας › Βιοκαύσιμα

Determining the Cost of Producing Ethanol from Corn Starch and Lignocellulosic Feedstocks

By Andrew McAloon, Winnie Yee, Kelly Ibsen, and Robert Wooley

The mature corn-to-ethanol industry has many similarities to the emerging lignocellulose-to-ethanol industry. It is certainly possible that some of the early practitioners of this new technology will be the current corn ethanol producers.

This report describes the comparison of the processes, each producing 25 million annual gallons of fuel ethanol. This paper attempts to compare the two processes as mature technologies, which requires assuming that the technology improvements needed to make the lignocellulosic process commercializable are achieved, and enough plants have been built to make the design well-understood.

Contents	I.	Introduction
	II.	Comparing the Corn Industry and Lignocellulose-Based Industry
	III.	Process Descriptions
	IV.	Normalization of Design and Economic Models
	V.	Changes Required in the Process Models
	VI.	Production Costs of Fuel Ethanol
	VII.	Future Impact of Co-Products
	VIII.	Prospects and Challenges for a Combined Process