Two-step separation for enriching phenols and esters from base-catalyzed depolymerization of sorghum stalk
•Base-catalyzed depolymerization of sorghum stalk was conducted.•The suitable condition for total ESs yield was 280 °C with CaO/sorghum stalk ratio of 7:10 g/g.•Catalytic reactivity of bases for biomass increase in the order: Na2CO3
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| Veröffentlicht in: | Fuel (Guildford) 2022-04, Vol.314, p.122739, Article 122739 |
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| creator | Li, Zhan-Ku Li, Xuan-Lan Yan, Hong-Lei Yan, Jing-Chong Lei, Zhi-Ping Ren, Shi-Biao Wang, Zhi-Cai Kang, Shi-Gang Shui, Heng-Fu |
| description | •Base-catalyzed depolymerization of sorghum stalk was conducted.•The suitable condition for total ESs yield was 280 °C with CaO/sorghum stalk ratio of 7:10 g/g.•Catalytic reactivity of bases for biomass increase in the order: Na2CO3 |
| doi_str_mv | 10.1016/j.fuel.2021.122739 |
| format | Article |
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Base-catalyzed depolymerization of sorghum stalk using Na2CO3, NaOH, and CaO was performed to afford methanol-soluble portion, and then extraction together with column chromatography was employed for enriching phenols and esters. The maximum total yield (ca. 53 wt%) of extract solutions 1–5 (ES1–ES5) was acquired at 280 °C with the equal mass of CaO and sorghum stalk. According to gas chromatograph/mass spectrometer analysis, phenols and esters are the predominate products. The phenols obtained from Na2CO3-catalyzed depolymerization of sorghum stalk mainly are methoxylphenols, while those obtained from NaOH and CaO-catalyzed depolymerization are dominated by alkylphenols, suggesting that NaOH or CaO plays an important role in demethoxylation during biomass depolymerization process. Phenols, methyl alkanoates/benzenecarboxylates, and dimethyl alkanedioates were roughly enriched into ES1, ES3, and ES5via sequential extraction with petroleum ether (PE), PE, and ethoxyethane, respectively. By the following column chromatographic separation of ES1 and ES3, alkylphenols and guaiacols were mainly enriched into PE/CS2 (4:3)-eluted fractions with maximum concentration of 92.2% and 92.1%, respectively. Saturated and unsaturated methyl alkanoates were isolated in concentration of near 100% by elution with PE/CS2 (9:1) and PE/CS2 (4:3), respectively. Extraction combined with column chromatography as two-step separation provides a promising approach for enriching phenols and esters from biomass-derived liquids.</description><identifier>ISSN: 0016-2361</identifier><identifier>EISSN: 1873-7153</identifier><identifier>DOI: 10.1016/j.fuel.2021.122739</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Alkanes ; Alkylphenols ; Base-catalyzed depolymerization ; Benzoates ; Biomass ; Chromatography ; Column chromatography ; Depolymerization ; Enrichment ; Esters ; Ethoxyethane ; Gas chromatography ; Petroleum ether ; Phenols ; Separation ; Sodium carbonate ; Sodium hydroxide ; Sorghum</subject><ispartof>Fuel (Guildford), 2022-04, Vol.314, p.122739, Article 122739</ispartof><rights>2021 Elsevier Ltd</rights><rights>Copyright Elsevier BV Apr 15, 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-bc909f09ddd448a7bdb1b1f68bcfa48b71b4a511dc31b36a8199a72f852eaf0a3</citedby><cites>FETCH-LOGICAL-c328t-bc909f09ddd448a7bdb1b1f68bcfa48b71b4a511dc31b36a8199a72f852eaf0a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.fuel.2021.122739$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids></links><search><creatorcontrib>Li, Zhan-Ku</creatorcontrib><creatorcontrib>Li, Xuan-Lan</creatorcontrib><creatorcontrib>Yan, Hong-Lei</creatorcontrib><creatorcontrib>Yan, Jing-Chong</creatorcontrib><creatorcontrib>Lei, Zhi-Ping</creatorcontrib><creatorcontrib>Ren, Shi-Biao</creatorcontrib><creatorcontrib>Wang, Zhi-Cai</creatorcontrib><creatorcontrib>Kang, Shi-Gang</creatorcontrib><creatorcontrib>Shui, Heng-Fu</creatorcontrib><title>Two-step separation for enriching phenols and esters from base-catalyzed depolymerization of sorghum stalk</title><title>Fuel (Guildford)</title><description>•Base-catalyzed depolymerization of sorghum stalk was conducted.•The suitable condition for total ESs yield was 280 °C with CaO/sorghum stalk ratio of 7:10 g/g.•Catalytic reactivity of bases for biomass increase in the order: Na2CO3 < NaOH < CaO.•Phenols and esters were effectively separated with extraction and column chromatography.•The concentration of enriched phenols and esters were up to 92% and 99%, respectively.
Base-catalyzed depolymerization of sorghum stalk using Na2CO3, NaOH, and CaO was performed to afford methanol-soluble portion, and then extraction together with column chromatography was employed for enriching phenols and esters. The maximum total yield (ca. 53 wt%) of extract solutions 1–5 (ES1–ES5) was acquired at 280 °C with the equal mass of CaO and sorghum stalk. According to gas chromatograph/mass spectrometer analysis, phenols and esters are the predominate products. The phenols obtained from Na2CO3-catalyzed depolymerization of sorghum stalk mainly are methoxylphenols, while those obtained from NaOH and CaO-catalyzed depolymerization are dominated by alkylphenols, suggesting that NaOH or CaO plays an important role in demethoxylation during biomass depolymerization process. Phenols, methyl alkanoates/benzenecarboxylates, and dimethyl alkanedioates were roughly enriched into ES1, ES3, and ES5via sequential extraction with petroleum ether (PE), PE, and ethoxyethane, respectively. By the following column chromatographic separation of ES1 and ES3, alkylphenols and guaiacols were mainly enriched into PE/CS2 (4:3)-eluted fractions with maximum concentration of 92.2% and 92.1%, respectively. Saturated and unsaturated methyl alkanoates were isolated in concentration of near 100% by elution with PE/CS2 (9:1) and PE/CS2 (4:3), respectively. Extraction combined with column chromatography as two-step separation provides a promising approach for enriching phenols and esters from biomass-derived liquids.</description><subject>Alkanes</subject><subject>Alkylphenols</subject><subject>Base-catalyzed depolymerization</subject><subject>Benzoates</subject><subject>Biomass</subject><subject>Chromatography</subject><subject>Column chromatography</subject><subject>Depolymerization</subject><subject>Enrichment</subject><subject>Esters</subject><subject>Ethoxyethane</subject><subject>Gas chromatography</subject><subject>Petroleum ether</subject><subject>Phenols</subject><subject>Separation</subject><subject>Sodium carbonate</subject><subject>Sodium hydroxide</subject><subject>Sorghum</subject><issn>0016-2361</issn><issn>1873-7153</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhYMoWKt_wFXA9dQ85hVwI8UXFNzUdcjjps04nYzJVGl_vVPGtau7-c65hw-hW0oWlNDyvlm4PbQLRhhdUMYqLs7QjNYVzypa8HM0IyOVMV7SS3SVUkMIqeoin6Fm_ROyNECPE_QqqsGHDrsQMXTRm63vNrjfQhfahFVnMYxoTNjFsMNaJciMGlR7OILFFvrQHnYQ_XFqCQ6nEDfb_Q6nEfq8RhdOtQlu_u4cfTw_rZev2er95W35uMoMZ_WQaSOIcERYa_O8VpW2mmrqylobp_JaV1TnqqDUGk41L1VNhVAVc3XBQDmi-BzdTb19DF_7cbFswj5240vJSi5KwatCjBSbKBNDShGc7KPfqXiQlMiTU9nIk1N5cionp2PoYQrBuP_bQ5TJeOgMWB_BDNIG_1_8F2iZgpM</recordid><startdate>20220415</startdate><enddate>20220415</enddate><creator>Li, Zhan-Ku</creator><creator>Li, Xuan-Lan</creator><creator>Yan, Hong-Lei</creator><creator>Yan, Jing-Chong</creator><creator>Lei, Zhi-Ping</creator><creator>Ren, Shi-Biao</creator><creator>Wang, Zhi-Cai</creator><creator>Kang, Shi-Gang</creator><creator>Shui, Heng-Fu</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope></search><sort><creationdate>20220415</creationdate><title>Two-step separation for enriching phenols and esters from base-catalyzed depolymerization of sorghum stalk</title><author>Li, Zhan-Ku ; Li, Xuan-Lan ; Yan, Hong-Lei ; Yan, Jing-Chong ; Lei, Zhi-Ping ; Ren, Shi-Biao ; Wang, Zhi-Cai ; Kang, Shi-Gang ; Shui, Heng-Fu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-bc909f09ddd448a7bdb1b1f68bcfa48b71b4a511dc31b36a8199a72f852eaf0a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Alkanes</topic><topic>Alkylphenols</topic><topic>Base-catalyzed depolymerization</topic><topic>Benzoates</topic><topic>Biomass</topic><topic>Chromatography</topic><topic>Column chromatography</topic><topic>Depolymerization</topic><topic>Enrichment</topic><topic>Esters</topic><topic>Ethoxyethane</topic><topic>Gas chromatography</topic><topic>Petroleum ether</topic><topic>Phenols</topic><topic>Separation</topic><topic>Sodium carbonate</topic><topic>Sodium hydroxide</topic><topic>Sorghum</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Zhan-Ku</creatorcontrib><creatorcontrib>Li, Xuan-Lan</creatorcontrib><creatorcontrib>Yan, Hong-Lei</creatorcontrib><creatorcontrib>Yan, Jing-Chong</creatorcontrib><creatorcontrib>Lei, Zhi-Ping</creatorcontrib><creatorcontrib>Ren, Shi-Biao</creatorcontrib><creatorcontrib>Wang, Zhi-Cai</creatorcontrib><creatorcontrib>Kang, Shi-Gang</creatorcontrib><creatorcontrib>Shui, Heng-Fu</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Fuel (Guildford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Zhan-Ku</au><au>Li, Xuan-Lan</au><au>Yan, Hong-Lei</au><au>Yan, Jing-Chong</au><au>Lei, Zhi-Ping</au><au>Ren, Shi-Biao</au><au>Wang, Zhi-Cai</au><au>Kang, Shi-Gang</au><au>Shui, Heng-Fu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Two-step separation for enriching phenols and esters from base-catalyzed depolymerization of sorghum stalk</atitle><jtitle>Fuel (Guildford)</jtitle><date>2022-04-15</date><risdate>2022</risdate><volume>314</volume><spage>122739</spage><pages>122739-</pages><artnum>122739</artnum><issn>0016-2361</issn><eissn>1873-7153</eissn><abstract>•Base-catalyzed depolymerization of sorghum stalk was conducted.•The suitable condition for total ESs yield was 280 °C with CaO/sorghum stalk ratio of 7:10 g/g.•Catalytic reactivity of bases for biomass increase in the order: Na2CO3 < NaOH < CaO.•Phenols and esters were effectively separated with extraction and column chromatography.•The concentration of enriched phenols and esters were up to 92% and 99%, respectively.
Base-catalyzed depolymerization of sorghum stalk using Na2CO3, NaOH, and CaO was performed to afford methanol-soluble portion, and then extraction together with column chromatography was employed for enriching phenols and esters. The maximum total yield (ca. 53 wt%) of extract solutions 1–5 (ES1–ES5) was acquired at 280 °C with the equal mass of CaO and sorghum stalk. According to gas chromatograph/mass spectrometer analysis, phenols and esters are the predominate products. The phenols obtained from Na2CO3-catalyzed depolymerization of sorghum stalk mainly are methoxylphenols, while those obtained from NaOH and CaO-catalyzed depolymerization are dominated by alkylphenols, suggesting that NaOH or CaO plays an important role in demethoxylation during biomass depolymerization process. Phenols, methyl alkanoates/benzenecarboxylates, and dimethyl alkanedioates were roughly enriched into ES1, ES3, and ES5via sequential extraction with petroleum ether (PE), PE, and ethoxyethane, respectively. By the following column chromatographic separation of ES1 and ES3, alkylphenols and guaiacols were mainly enriched into PE/CS2 (4:3)-eluted fractions with maximum concentration of 92.2% and 92.1%, respectively. Saturated and unsaturated methyl alkanoates were isolated in concentration of near 100% by elution with PE/CS2 (9:1) and PE/CS2 (4:3), respectively. Extraction combined with column chromatography as two-step separation provides a promising approach for enriching phenols and esters from biomass-derived liquids.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.fuel.2021.122739</doi></addata></record> |
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| ispartof | Fuel (Guildford), 2022-04, Vol.314, p.122739, Article 122739 |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Alkanes Alkylphenols Base-catalyzed depolymerization Benzoates Biomass Chromatography Column chromatography Depolymerization Enrichment Esters Ethoxyethane Gas chromatography Petroleum ether Phenols Separation Sodium carbonate Sodium hydroxide Sorghum |
| title | Two-step separation for enriching phenols and esters from base-catalyzed depolymerization of sorghum stalk |
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