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Switchgrass biomass to ethanol produ...

Haque, Mohua.

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Switchgrass biomass to ethanol production economics: Field to fuel approach.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Switchgrass biomass to ethanol production economics: Field to fuel approach./
作者:	Haque, Mohua.
面頁冊數:	170 p.
附註:	Source: Dissertation Abstracts International, Volume: 72-04, Section: A, page: 1392.
Contained By:	Dissertation Abstracts International72-04A.
標題:	Alternative Energy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3443395
ISBN:	9781124483221

Switchgrass biomass to ethanol production economics: Field to fuel approach.
Haque, Mohua.

Switchgrass biomass to ethanol production economics: Field to fuel approach. - 170 p.

Source: Dissertation Abstracts International, Volume: 72-04, Section: A, page: 1392.

Thesis (Ph.D.)--Oklahoma State University, 2010.

Scope and Method of Study. Switchgrass has been proposed as a dedicated energy crop. The first essay determines switchgrass yield response to nitrogen fertilizer for a single annual harvest in July and for a single annual harvest in October based on a field experiments conducted at Stillwater, OK. Data were fitted to several functional forms to characterize both the July harvest and the October harvest response functions. Extending the harvest window to take advantage of reduction in harvest machinery investment costs has important biological consequences. The second essay determines the cost to deliver a ton of switchgrass biomass to a 2,000 tons per day plant located in Oklahoma. The model accounts for differences in yield and nitrogen fertilizer requirements across harvest months. The data were incorporated into a multi-region, multi-period, monthly time-step, mixed integer mathematical programming model that was constructed to determine the optimal strategy. Desirable feedstock properties, biomass to biofuel conversion rate, and investment required in plant differs depending on which conversion technology is used. The third essay determines the breakeven ethanol price for a cellulosic biorefinery. A comprehensive mathematical programming model that encompasses the chain from land acquisition to ethanol production was constructed and solved.

ISBN: 9781124483221Subjects--Topical Terms:

1035473
Alternative Energy.

Switchgrass biomass to ethanol production economics: Field to fuel approach.
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245 1 0 $a Switchgrass biomass to ethanol production economics: Field to fuel approach.
300 $a 170 p.
500 $a Source: Dissertation Abstracts International, Volume: 72-04, Section: A, page: 1392.
500 $a Adviser: Francis M. Epplin.
502 $a Thesis (Ph.D.)--Oklahoma State University, 2010.
520 $a Scope and Method of Study. Switchgrass has been proposed as a dedicated energy crop. The first essay determines switchgrass yield response to nitrogen fertilizer for a single annual harvest in July and for a single annual harvest in October based on a field experiments conducted at Stillwater, OK. Data were fitted to several functional forms to characterize both the July harvest and the October harvest response functions. Extending the harvest window to take advantage of reduction in harvest machinery investment costs has important biological consequences. The second essay determines the cost to deliver a ton of switchgrass biomass to a 2,000 tons per day plant located in Oklahoma. The model accounts for differences in yield and nitrogen fertilizer requirements across harvest months. The data were incorporated into a multi-region, multi-period, monthly time-step, mixed integer mathematical programming model that was constructed to determine the optimal strategy. Desirable feedstock properties, biomass to biofuel conversion rate, and investment required in plant differs depending on which conversion technology is used. The third essay determines the breakeven ethanol price for a cellulosic biorefinery. A comprehensive mathematical programming model that encompasses the chain from land acquisition to ethanol production was constructed and solved.
520 $a Findings and Conclusions. The July and October harvest plateau yield of 4.36 and 5.49 tons per acre were achieved with an estimated annual nitrogen fertilizer application of 80 and 63 pounds per acre, respectively. Farm gate production costs were estimated to be $6 0 per ton for the July harvest and $5 0 per ton for the October harvest. Based on the model results, the strategy of extending harvest over many months is economically preferable to a strategy of harvesting only in peak yield harvest months. Restricting harvest to a two-month harvest season would increase the cost to deliver feedstock by 23 percent. For a capital requirement of $4 00 million for a 100 million gallons per year biorefinery and a conversion rate of 100 gallons of ethanol per dry ton, the breakeven ethanol price is $1 .93 per gallon. Biomass to ethanol conversion rate and the cost of biorefinery construction, operation, and maintenance are critical issues in the determination of the cost of producing ethanol from switchgrass.
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710 2 $a Oklahoma State University. $b Agricultural Economics. $3 1266066
773 0 $t Dissertation Abstracts International $g 72-04A.
790 1 0 $a Epplin, Francis M., $e advisor
790 1 0 $a Stoecker, Arthur $e committee member
790 1 0 $a DeVuyst, Eric $e committee member
790 1 0 $a Huhnke, Raymond L. $e committee member
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