An assessment of ethanol supply potential from crops in Thailand

Name: Suthamma Yoosin

Organization : King Mongkut's University of Technology Thonburi. The Joint Graduate School of Energy and Environment. Energy Technology

keyword: Ethanol availability

; Ethanol production cost

Abstract: Increasing energy imports and persistent surpluses of agro-products (cassava, corn,rice and, sugarcane) have led the Thai government to implement an alcohol program as asource of fuel.The current status of Thailand's resources of crop potentials has been assessed inthis study to investigate the availability of ethanol production's supply potential. Thepotential yield of ethanol from any crop depends on a starch or sugar content. The ratio ofethanol conversion from each type of major crop in Thailand; cassava, corn, rice, andsugarcane was calculated. The average yields of alcohol given for 1 ton of cassava, corn,rice, and sugarcane are 129, 367, 405 and 97 liters, respectively. The production of majorcrops has been forecasted for 2002-2012. The ethanol availability was calculated fromthese forecasted figures.A multi-feed ethanol plant with a capacity of 150,000 lit per day of anhydrousethanol was proposed. The total capital of this plant would be 1,559 million baht. Theethanol cost was in the range of 10.47-17.64 baht/l depending upon the type of rawmaterial. It is also apparent that the feedstock cost is a major effect on ethanol productioncost. When the cassava root cost changes from 500 to 1,800 baht/ton, the ethanol wouldvary in the range of 8.93 to 17.05 baht/l.According to the government plan, in the years 2006 to 2010 ethanol will beblended with 95 octane gasoline. From the year 201 1, ethanol will be blended with both 91octane and 95 octane gasoline in 10% concentration. The study found that using corn andrice to produce ethanol is uneconomic. The appropriate feedstocks are cassava andsugarcane. Only the surplus productions of cassava and sugarcane are inadequate to supplythe ethanol production to provide the demand. Hence, they have to use the feedstock forthe exports. In the years 2004 to year 2010, there would use about 7% to 15% of exportsugarcane. After year 20 1 1, there is more excessive use of export feedstock. In year 2012,there would be used about 32% of export sugarcane.

King Mongkut's University Technology Thonburi. Library

Address: กรุงเทพมหานคร (Bangkok)

Email: info.lib@mail.kmutt.ac.th

Name: Chumnong Sorpipatana

Role: Advisor

Created: 2003

Issued: 2007-07-16

Modified: 2007-07-26

วิทยานิพนธ์/Thesis

ISBN: 9741835604

CallNumber: JGSEE64

eng

Thailand

DegreeName: Master of Science

Level: Master's Degree

Descipline: Energy Technology

Grantor: King Mongkut's University of Technology Thonburi

©copyrights King Mongkut's University of Technology Thonburi

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