Exergy and energy analysis of three biogas upgrading processes
•Three biogas upgrading processes have been successfully simulated by Aspen Plus.•Water scrubbing showed the largest exergy efficiency (94.5%).•A new model for membrane separation was successfully developed and integrated.•The exergy analysis allowed to individuate all the waste streams in the proce...
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| Veröffentlicht in: | Energy conversion and management 2020-11, Vol.224, p.113323, Article 113323 |
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| creator | Vilardi, Giorgio Bassano, Claudia Deiana, Paolo Verdone, Nicola |
| description | •Three biogas upgrading processes have been successfully simulated by Aspen Plus.•Water scrubbing showed the largest exergy efficiency (94.5%).•A new model for membrane separation was successfully developed and integrated.•The exergy analysis allowed to individuate all the waste streams in the processes.•Membrane separation showed the highest specific energy consumption 0.94 kWh/m3 STP.
The aim of this work was to provide a complete exergy and energy analysis of three biogas upgrading technologies: amine scrubbing, water scrubbing and membrane separation processes. Biogas production and treatment represents a key-process for the application of Circular Economy principles, since allows to reuse/reconvert industrial by-products or agro-industrial waste in a product that can be used in different energy demanding sectors, after proper cleaning and upgrading processes. The three technologies here reported have been implemented in Aspen Plus flowsheets, and were used to upgrade a biogas to biomethane, meeting the UNIT/TS 11537:2019 standards for Biogas to be injected in the gas grid. Each units of all the simulated processes have been analysed calculating total exergy feed, total exergy produced and exergy loss, distinguishing that lost for irreversibility and as waste. Water scrubbing was characterized by the highest values of exergy efficiency (94.5%) and methane recovery (99%), whereas the lowest exergy efficiency belonged to membrane separation (90.8%) that returned also the largest specific energy consumption (0.94 kWh/m3 STP). Conversely, amine scrubbing was characterized by the lowest specific energy consumption value (0.204 kWh/m3 STP) but by an exergy efficiency of 91.1%. |
| doi_str_mv | 10.1016/j.enconman.2020.113323 |
| format | Article |
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The aim of this work was to provide a complete exergy and energy analysis of three biogas upgrading technologies: amine scrubbing, water scrubbing and membrane separation processes. Biogas production and treatment represents a key-process for the application of Circular Economy principles, since allows to reuse/reconvert industrial by-products or agro-industrial waste in a product that can be used in different energy demanding sectors, after proper cleaning and upgrading processes. The three technologies here reported have been implemented in Aspen Plus flowsheets, and were used to upgrade a biogas to biomethane, meeting the UNIT/TS 11537:2019 standards for Biogas to be injected in the gas grid. Each units of all the simulated processes have been analysed calculating total exergy feed, total exergy produced and exergy loss, distinguishing that lost for irreversibility and as waste. Water scrubbing was characterized by the highest values of exergy efficiency (94.5%) and methane recovery (99%), whereas the lowest exergy efficiency belonged to membrane separation (90.8%) that returned also the largest specific energy consumption (0.94 kWh/m3 STP). Conversely, amine scrubbing was characterized by the lowest specific energy consumption value (0.204 kWh/m3 STP) but by an exergy efficiency of 91.1%.</description><identifier>ISSN: 0196-8904</identifier><identifier>EISSN: 1879-2227</identifier><identifier>DOI: 10.1016/j.enconman.2020.113323</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Agricultural wastes ; Aspen ; Biogas ; Economic conditions ; Efficiency ; Energy consumption ; Exergy ; Exergy-analysis ; Industrial wastes ; Irreversibility ; Membrane separation ; Membranes ; Plant-design ; Separation ; Separation processes ; Thermodynamics ; Upgrading ; Washing</subject><ispartof>Energy conversion and management, 2020-11, Vol.224, p.113323, Article 113323</ispartof><rights>2020 Elsevier Ltd</rights><rights>Copyright Elsevier Science Ltd. Nov 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c340t-8fe2c2e96a2981cfee19c1ee68a1f85cb41e82c014aad18007254f7bf255fa5f3</citedby><cites>FETCH-LOGICAL-c340t-8fe2c2e96a2981cfee19c1ee68a1f85cb41e82c014aad18007254f7bf255fa5f3</cites><orcidid>0000-0002-8072-6877 ; 0000-0001-6209-8558</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S019689042030861X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Vilardi, Giorgio</creatorcontrib><creatorcontrib>Bassano, Claudia</creatorcontrib><creatorcontrib>Deiana, Paolo</creatorcontrib><creatorcontrib>Verdone, Nicola</creatorcontrib><title>Exergy and energy analysis of three biogas upgrading processes</title><title>Energy conversion and management</title><description>•Three biogas upgrading processes have been successfully simulated by Aspen Plus.•Water scrubbing showed the largest exergy efficiency (94.5%).•A new model for membrane separation was successfully developed and integrated.•The exergy analysis allowed to individuate all the waste streams in the processes.•Membrane separation showed the highest specific energy consumption 0.94 kWh/m3 STP.
The aim of this work was to provide a complete exergy and energy analysis of three biogas upgrading technologies: amine scrubbing, water scrubbing and membrane separation processes. Biogas production and treatment represents a key-process for the application of Circular Economy principles, since allows to reuse/reconvert industrial by-products or agro-industrial waste in a product that can be used in different energy demanding sectors, after proper cleaning and upgrading processes. The three technologies here reported have been implemented in Aspen Plus flowsheets, and were used to upgrade a biogas to biomethane, meeting the UNIT/TS 11537:2019 standards for Biogas to be injected in the gas grid. Each units of all the simulated processes have been analysed calculating total exergy feed, total exergy produced and exergy loss, distinguishing that lost for irreversibility and as waste. Water scrubbing was characterized by the highest values of exergy efficiency (94.5%) and methane recovery (99%), whereas the lowest exergy efficiency belonged to membrane separation (90.8%) that returned also the largest specific energy consumption (0.94 kWh/m3 STP). Conversely, amine scrubbing was characterized by the lowest specific energy consumption value (0.204 kWh/m3 STP) but by an exergy efficiency of 91.1%.</description><subject>Agricultural wastes</subject><subject>Aspen</subject><subject>Biogas</subject><subject>Economic conditions</subject><subject>Efficiency</subject><subject>Energy consumption</subject><subject>Exergy</subject><subject>Exergy-analysis</subject><subject>Industrial wastes</subject><subject>Irreversibility</subject><subject>Membrane separation</subject><subject>Membranes</subject><subject>Plant-design</subject><subject>Separation</subject><subject>Separation processes</subject><subject>Thermodynamics</subject><subject>Upgrading</subject><subject>Washing</subject><issn>0196-8904</issn><issn>1879-2227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LAzEQxYMoWKtfQQKet85k_2UvopRWhYIXPYc0O1mztLs12Yr99qZsPXuaYXhvZt6PsVuEGQIW9-2MOtN3W93NBIg4xDQV6RmboCyrRAhRnrMJYFUksoLskl2F0AJAmkMxYQ-LH_LNgeuu5tSdWr05BBd4b_nw6Yn42vWNDny_a7yuXdfwne8NhUDhml1YvQl0c6pT9rFcvM9fktXb8-v8aZWYNIMhkZaEEVQVWlQSjSXCyiBRITVamZt1hiSFAcy0rlEClCLPbLm2Is-tzm06ZXfj3nj5a09hUG2_9_HRoERWxjBpjhBVxagyvg_Bk1U777baHxSCOrJSrfpjpY6s1MgqGh9HI8UM3468CsZFJdXOkxlU3bv_VvwCG-h1ug</recordid><startdate>20201115</startdate><enddate>20201115</enddate><creator>Vilardi, Giorgio</creator><creator>Bassano, Claudia</creator><creator>Deiana, Paolo</creator><creator>Verdone, Nicola</creator><general>Elsevier Ltd</general><general>Elsevier Science Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-8072-6877</orcidid><orcidid>https://orcid.org/0000-0001-6209-8558</orcidid></search><sort><creationdate>20201115</creationdate><title>Exergy and energy analysis of three biogas upgrading processes</title><author>Vilardi, Giorgio ; Bassano, Claudia ; Deiana, Paolo ; Verdone, Nicola</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c340t-8fe2c2e96a2981cfee19c1ee68a1f85cb41e82c014aad18007254f7bf255fa5f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Agricultural wastes</topic><topic>Aspen</topic><topic>Biogas</topic><topic>Economic conditions</topic><topic>Efficiency</topic><topic>Energy consumption</topic><topic>Exergy</topic><topic>Exergy-analysis</topic><topic>Industrial wastes</topic><topic>Irreversibility</topic><topic>Membrane separation</topic><topic>Membranes</topic><topic>Plant-design</topic><topic>Separation</topic><topic>Separation processes</topic><topic>Thermodynamics</topic><topic>Upgrading</topic><topic>Washing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vilardi, Giorgio</creatorcontrib><creatorcontrib>Bassano, Claudia</creatorcontrib><creatorcontrib>Deiana, Paolo</creatorcontrib><creatorcontrib>Verdone, Nicola</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Energy conversion and management</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vilardi, Giorgio</au><au>Bassano, Claudia</au><au>Deiana, Paolo</au><au>Verdone, Nicola</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Exergy and energy analysis of three biogas upgrading processes</atitle><jtitle>Energy conversion and management</jtitle><date>2020-11-15</date><risdate>2020</risdate><volume>224</volume><spage>113323</spage><pages>113323-</pages><artnum>113323</artnum><issn>0196-8904</issn><eissn>1879-2227</eissn><abstract>•Three biogas upgrading processes have been successfully simulated by Aspen Plus.•Water scrubbing showed the largest exergy efficiency (94.5%).•A new model for membrane separation was successfully developed and integrated.•The exergy analysis allowed to individuate all the waste streams in the processes.•Membrane separation showed the highest specific energy consumption 0.94 kWh/m3 STP.
The aim of this work was to provide a complete exergy and energy analysis of three biogas upgrading technologies: amine scrubbing, water scrubbing and membrane separation processes. Biogas production and treatment represents a key-process for the application of Circular Economy principles, since allows to reuse/reconvert industrial by-products or agro-industrial waste in a product that can be used in different energy demanding sectors, after proper cleaning and upgrading processes. The three technologies here reported have been implemented in Aspen Plus flowsheets, and were used to upgrade a biogas to biomethane, meeting the UNIT/TS 11537:2019 standards for Biogas to be injected in the gas grid. Each units of all the simulated processes have been analysed calculating total exergy feed, total exergy produced and exergy loss, distinguishing that lost for irreversibility and as waste. Water scrubbing was characterized by the highest values of exergy efficiency (94.5%) and methane recovery (99%), whereas the lowest exergy efficiency belonged to membrane separation (90.8%) that returned also the largest specific energy consumption (0.94 kWh/m3 STP). Conversely, amine scrubbing was characterized by the lowest specific energy consumption value (0.204 kWh/m3 STP) but by an exergy efficiency of 91.1%.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.enconman.2020.113323</doi><orcidid>https://orcid.org/0000-0002-8072-6877</orcidid><orcidid>https://orcid.org/0000-0001-6209-8558</orcidid></addata></record> |
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| subjects | Agricultural wastes Aspen Biogas Economic conditions Efficiency Energy consumption Exergy Exergy-analysis Industrial wastes Irreversibility Membrane separation Membranes Plant-design Separation Separation processes Thermodynamics Upgrading Washing |
| title | Exergy and energy analysis of three biogas upgrading processes |
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