Economic and environmental impacts of an integrated-state anaerobic digestion system to produce compressed natural gas from organic wastes and energy crops
Anaerobic Digestion (AD) is a well-developed sustainable technology to convert organic waste streams and energy crops to produce renewable gaseous biofuels, while recycling nutrients and mitigating greenhouse gas emissions. In this study, the environmental and economic impacts of an integrated-state...
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| Veröffentlicht in: | Renewable & sustainable energy reviews 2019-11, Vol.115 (C), p.109354, Article 109354 |
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| description | Anaerobic Digestion (AD) is a well-developed sustainable technology to convert organic waste streams and energy crops to produce renewable gaseous biofuels, while recycling nutrients and mitigating greenhouse gas emissions. In this study, the environmental and economic impacts of an integrated-state AD technology (i-AD) producing Compressed Natural Gas (noted as BioCNG) were investigated from dairy-manure, food-wastes, and miscanthus biomass feedstocks, and compared with that of stand-alone liquid-state (LS-AD) and solid-state (SS-AD) AD technologies. A coupled life-cycle assessment and techno-economic analysis (LCA‐TEA) approach was used to estimate the Global Warming Potential (GWP) and the Minimum Selling Price (MSP) of BioCNG ‒ a renewable alternative to fossil-CNG. The results illustrated that the Fossil Energy Ratios (FERs) for BioCNG were between 2.3 and 3.3 in the increasing order as LS‐AD |
| doi_str_mv | 10.1016/j.rser.2019.109354 |
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[Display omitted]
•BioCNG production of an integrated-state AD technology was studied.•The Global Warming Potential of BioCNG ranged from −5 to −15.0 kgCO2eq per GGE.•The Minimum Selling Price of BioCNG ranged from $3 to $5 per GGE without any credit.•The solid-state AD technology to produce BioCNG from miscanthus was very promising.•BioCNG through solid-state AD can be economical at a carbon price of $35/MgCO₂eq.</description><identifier>ISSN: 1364-0321</identifier><identifier>EISSN: 1879-0690</identifier><identifier>DOI: 10.1016/j.rser.2019.109354</identifier><language>eng</language><publisher>United Kingdom: Elsevier Ltd</publisher><subject>Anaerobic digestion ; And energy crop ; BioCNG ; biofuels ; biomass ; dairy manure ; energy ; feedstocks ; food waste ; funding ; greenhouse gases ; life cycle assessment ; Life-cycle assessment (LCA) ; market prices ; Miscanthus ; natural gas ; Organic wastes ; sustainable technology ; Techno-economic analysis (TEA)</subject><ispartof>Renewable & sustainable energy reviews, 2019-11, Vol.115 (C), p.109354, Article 109354</ispartof><rights>2019 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c467t-49492b0c231d64b01efaa5b5e2c881cc8fef60cb5a836e58c49dafec3f60e3ab3</citedby><cites>FETCH-LOGICAL-c467t-49492b0c231d64b01efaa5b5e2c881cc8fef60cb5a836e58c49dafec3f60e3ab3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1364032119305623$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/1560325$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Sahoo, Kamalakanta</creatorcontrib><creatorcontrib>Mani, Sudhagar</creatorcontrib><title>Economic and environmental impacts of an integrated-state anaerobic digestion system to produce compressed natural gas from organic wastes and energy crops</title><title>Renewable & sustainable energy reviews</title><description>Anaerobic Digestion (AD) is a well-developed sustainable technology to convert organic waste streams and energy crops to produce renewable gaseous biofuels, while recycling nutrients and mitigating greenhouse gas emissions. In this study, the environmental and economic impacts of an integrated-state AD technology (i-AD) producing Compressed Natural Gas (noted as BioCNG) were investigated from dairy-manure, food-wastes, and miscanthus biomass feedstocks, and compared with that of stand-alone liquid-state (LS-AD) and solid-state (SS-AD) AD technologies. A coupled life-cycle assessment and techno-economic analysis (LCA‐TEA) approach was used to estimate the Global Warming Potential (GWP) and the Minimum Selling Price (MSP) of BioCNG ‒ a renewable alternative to fossil-CNG. The results illustrated that the Fossil Energy Ratios (FERs) for BioCNG were between 2.3 and 3.3 in the increasing order as LS‐AD < i‐AD < SS‐AD. The life-cycle GWPs to produce BioCNG via LS‐AD, SS‐AD, and i‐AD were −5.1, −15.1, and −12.0 kgCO2eq/GGE (Gasoline-Gallon-Equivalent) respectively. The MSP of BioCNG (without incentives) via LS‐AD ($2.9/GGE) was lower than that of both SS‐AD ($4.1/GGE) and i‐AD ($4.9/GGE). When the tipping-fee ($44/Mg), RIN(Renewable Index Number)-credit ($0.46/RIN), and carbon-credit($13.6/MgCO2eq) were considered, the MSP of BioCNG dropped by up to 70%, 45%, and 25% for LS‐AD, SS‐AD, and i‐AD, respectively. Fungal-pretreatment of miscanthus had negligible impacts on the environmental and economic performances of BioCNG. Backhauling of solid-digestate for miscanthus cultivation may reduce the MSP, energy usage, and GWP by up-to 5%, 16%, and 7%, respectively. The commercial production of BioCNG from energy crops can potentially be competitive at a higher BioCNG market price or with favorable energy policies, financial support, and tax-benefits.
[Display omitted]
•BioCNG production of an integrated-state AD technology was studied.•The Global Warming Potential of BioCNG ranged from −5 to −15.0 kgCO2eq per GGE.•The Minimum Selling Price of BioCNG ranged from $3 to $5 per GGE without any credit.•The solid-state AD technology to produce BioCNG from miscanthus was very promising.•BioCNG through solid-state AD can be economical at a carbon price of $35/MgCO₂eq.</description><subject>Anaerobic digestion</subject><subject>And energy crop</subject><subject>BioCNG</subject><subject>biofuels</subject><subject>biomass</subject><subject>dairy manure</subject><subject>energy</subject><subject>feedstocks</subject><subject>food waste</subject><subject>funding</subject><subject>greenhouse gases</subject><subject>life cycle assessment</subject><subject>Life-cycle assessment (LCA)</subject><subject>market prices</subject><subject>Miscanthus</subject><subject>natural gas</subject><subject>Organic wastes</subject><subject>sustainable technology</subject><subject>Techno-economic analysis (TEA)</subject><issn>1364-0321</issn><issn>1879-0690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9UcFu1DAQjRBIlMIP9GRx4pLFjhNvInFBVaFIlbjA2XLGk-DVxg4eb9F-S3-WWaXnnsaaeW_83ryqulFyp6Qynw-7TJh3jVQDNwbdta-qK9Xvh1qaQb7mtzZtLXWj3lbviA5Sqq7f66vq6Q5STEsA4aIXGB9DTnHBWNxRhGV1UEikiYcixIJzdgV9TYUL9xzmNDLVhxmphBQFnangIkoSa07-BCggLWtGIvQiunLKvHd2JKacFpHy7CLz_zlm0bMCzPNZQE4rva_eTO5I-OG5Xle_v939ur2vH35-_3H79aGG1uxL3Q7t0IwSGq28aUepcHKuGztsoO8VQD_hZCSMneu1wa6HdvBuQtDcRe1GfV193PYmNmEJQkH4w2eJCMWqzvDZOgZ92kBs7O-J7dolEODx6CKmE9nGGDnwB4NiaLNB2QVRxsmuOSwun62S9hKXPdhLXPYSl93iYtKXjYTs9DHwlIVgBPQhX3T4FF6i_wcqoKMV</recordid><startdate>20191101</startdate><enddate>20191101</enddate><creator>Sahoo, Kamalakanta</creator><creator>Mani, Sudhagar</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7S9</scope><scope>L.6</scope><scope>OTOTI</scope></search><sort><creationdate>20191101</creationdate><title>Economic and environmental impacts of an integrated-state anaerobic digestion system to produce compressed natural gas from organic wastes and energy crops</title><author>Sahoo, Kamalakanta ; Mani, Sudhagar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c467t-49492b0c231d64b01efaa5b5e2c881cc8fef60cb5a836e58c49dafec3f60e3ab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Anaerobic digestion</topic><topic>And energy crop</topic><topic>BioCNG</topic><topic>biofuels</topic><topic>biomass</topic><topic>dairy manure</topic><topic>energy</topic><topic>feedstocks</topic><topic>food waste</topic><topic>funding</topic><topic>greenhouse gases</topic><topic>life cycle assessment</topic><topic>Life-cycle assessment (LCA)</topic><topic>market prices</topic><topic>Miscanthus</topic><topic>natural gas</topic><topic>Organic wastes</topic><topic>sustainable technology</topic><topic>Techno-economic analysis (TEA)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sahoo, Kamalakanta</creatorcontrib><creatorcontrib>Mani, Sudhagar</creatorcontrib><collection>CrossRef</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><collection>OSTI.GOV</collection><jtitle>Renewable & sustainable energy reviews</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sahoo, Kamalakanta</au><au>Mani, Sudhagar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Economic and environmental impacts of an integrated-state anaerobic digestion system to produce compressed natural gas from organic wastes and energy crops</atitle><jtitle>Renewable & sustainable energy reviews</jtitle><date>2019-11-01</date><risdate>2019</risdate><volume>115</volume><issue>C</issue><spage>109354</spage><pages>109354-</pages><artnum>109354</artnum><issn>1364-0321</issn><eissn>1879-0690</eissn><abstract>Anaerobic Digestion (AD) is a well-developed sustainable technology to convert organic waste streams and energy crops to produce renewable gaseous biofuels, while recycling nutrients and mitigating greenhouse gas emissions. In this study, the environmental and economic impacts of an integrated-state AD technology (i-AD) producing Compressed Natural Gas (noted as BioCNG) were investigated from dairy-manure, food-wastes, and miscanthus biomass feedstocks, and compared with that of stand-alone liquid-state (LS-AD) and solid-state (SS-AD) AD technologies. A coupled life-cycle assessment and techno-economic analysis (LCA‐TEA) approach was used to estimate the Global Warming Potential (GWP) and the Minimum Selling Price (MSP) of BioCNG ‒ a renewable alternative to fossil-CNG. The results illustrated that the Fossil Energy Ratios (FERs) for BioCNG were between 2.3 and 3.3 in the increasing order as LS‐AD < i‐AD < SS‐AD. The life-cycle GWPs to produce BioCNG via LS‐AD, SS‐AD, and i‐AD were −5.1, −15.1, and −12.0 kgCO2eq/GGE (Gasoline-Gallon-Equivalent) respectively. The MSP of BioCNG (without incentives) via LS‐AD ($2.9/GGE) was lower than that of both SS‐AD ($4.1/GGE) and i‐AD ($4.9/GGE). When the tipping-fee ($44/Mg), RIN(Renewable Index Number)-credit ($0.46/RIN), and carbon-credit($13.6/MgCO2eq) were considered, the MSP of BioCNG dropped by up to 70%, 45%, and 25% for LS‐AD, SS‐AD, and i‐AD, respectively. Fungal-pretreatment of miscanthus had negligible impacts on the environmental and economic performances of BioCNG. Backhauling of solid-digestate for miscanthus cultivation may reduce the MSP, energy usage, and GWP by up-to 5%, 16%, and 7%, respectively. The commercial production of BioCNG from energy crops can potentially be competitive at a higher BioCNG market price or with favorable energy policies, financial support, and tax-benefits.
[Display omitted]
•BioCNG production of an integrated-state AD technology was studied.•The Global Warming Potential of BioCNG ranged from −5 to −15.0 kgCO2eq per GGE.•The Minimum Selling Price of BioCNG ranged from $3 to $5 per GGE without any credit.•The solid-state AD technology to produce BioCNG from miscanthus was very promising.•BioCNG through solid-state AD can be economical at a carbon price of $35/MgCO₂eq.</abstract><cop>United Kingdom</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.rser.2019.109354</doi><oa>free_for_read</oa></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Anaerobic digestion And energy crop BioCNG biofuels biomass dairy manure energy feedstocks food waste funding greenhouse gases life cycle assessment Life-cycle assessment (LCA) market prices Miscanthus natural gas Organic wastes sustainable technology Techno-economic analysis (TEA) |
| title | Economic and environmental impacts of an integrated-state anaerobic digestion system to produce compressed natural gas from organic wastes and energy crops |
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