Cost assessment of centralizing a swine manure and corn stover co-digestion system for biogas production

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dc.contributor.author Raman, D.
dc.contributor.author Myers, Gabrielle
dc.contributor.author Andersen, Daniel
dc.contributor.author Raman, D. Raj
dc.contributor.author Andersen, Daniel
dc.contributor.department Agricultural and Biosystems Engineering
dc.contributor.department Center for Biorenewable Chemicals
dc.date 2021-07-12T20:24:21.000
dc.date.accessioned 2021-08-14T00:13:13Z
dc.date.available 2021-08-14T00:13:13Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2021
dc.date.embargo 2020-01-01
dc.date.issued 2021-01-01
dc.description.abstract <p>Iowa's livestock produces over 50 million tons of wet-basis manure each year. Biogas production from the manure can provide additional income to farmers, reduce greenhouse gas emissions, control odors, and provide a renewable energy source. Despite these benefits, biogas production is rarely deployed at swine farms. In this work, we explore the system economics to understand better the reasons for low deployment, as well as the benefits that might be realized via several additional steps, including: (1) cleaning and injection into the natural gas grid, (2) amending manure with biomass, and (3) digester centralization. Specifically, we present a static, spreadsheet-based techno-economic model that allows examining these scenarios and combinations thereof. We also present our results and the uncertainties therein. This work shows that under the model assumptions, distributed, farm-scale digesters are not competitive with natural gas prices in Iowa, while some centralized production scenarios can be competitive, providing that fertilizer value and RIN credits are sufficiently high.</p>
dc.description.comments <p>This conference presentation is published as Myers, Gabrielle M., Daniel S. Andersen, and D. Raj Raman. "Cost assessment of centralizing a swine manure and corn stover co-digestion system for biogas production." ASABE Paper No. 2100888. ASABE Annual International Meeting, July 12-16, 2021. DOI: <a href="https://doi.org/10.13031/aim.202100888" target="_blank">10.13031/aim.202100888</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_conf/629/
dc.identifier.articleid 1630
dc.identifier.contextkey 23790639
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/629
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/JwjbVLYw
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_conf/629/2021_RamanDRaj_CostAssessment.pdf|||Sat Jan 15 01:19:33 UTC 2022
dc.source.uri 10.13031/aim.202100888
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Energy Systems
dc.subject.keywords Anaerobic digestion
dc.subject.keywords manure
dc.subject.keywords swine
dc.subject.keywords bioenergy
dc.subject.keywords renewable fuels
dc.title Cost assessment of centralizing a swine manure and corn stover co-digestion system for biogas production
dc.type article
dc.type.genre presentation
dspace.entity.type Publication
relation.isAuthorOfPublication 0d20027b-c384-4033-aafe-d7cf62e10240
relation.isAuthorOfPublication 18329603-49c4-4007-985d-2402929993a8
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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