Combined Approaches to Xylose Production from Corn Stover by Dilute Acid Hydrolysis
Corn stover is a lignocellulosic biomass, an agricultural by-product, a possible raw material for xylose production. In this study corn stover was hydrolyzed with sulfuric and hydrochloric acid. In the presented work, hydrochloric acid resulted in the highest, 88.8 % xylose yield of theoretical unde...
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| Format: | Article |
| Language: | English |
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Croatian Society of Chemical Engineers
2017-04-01
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| Series: | Chemical and Biochemical Engineering Quarterly |
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| Online Access: | http://silverstripe.fkit.hr/cabeq/assets/Uploads/08-1-17.pdf |
| _version_ | 1818473145879756800 |
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| author | A. Fehér C. Fehér M. Rozbach Z. Barta |
| author_facet | A. Fehér C. Fehér M. Rozbach Z. Barta |
| author_sort | A. Fehér |
| collection | DOAJ |
| description | Corn stover is a lignocellulosic biomass, an agricultural by-product, a possible raw material for xylose production. In this study corn stover was hydrolyzed with sulfuric and hydrochloric acid. In the presented work, hydrochloric acid resulted in the highest, 88.8 % xylose yield of theoretical under the conditions of 2 % (w/w) hydrochloric acid concentration, 40-minute reaction time, 10 % (w/w) dry matter, at 120 °C. Sulfuric acid experiments resulted in 81.9 % xylose yield of theoretical by using 1.5 % (w/w) sulfuric acid, 60-minute reaction time, at 140 °C, 7 % (w/w) dry matter. Acid hydrolysis at low dry matter content resulted in relatively low sugar concentrations. Hydrolyzate recycling concentrated xylose to three-times, while the recycling does not decrease the xylose yields. It is also shown that the pseudo first-order and biphasic kinetic models can be based on total sugar concentrations. |
| first_indexed | 2024-04-14T04:18:03Z |
| format | Article |
| id | doaj.art-f2e80f80c80645f0a835947565299943 |
| institution | Directory Open Access Journal |
| issn | 0352-9568 1846-5153 |
| language | English |
| last_indexed | 2024-04-14T04:18:03Z |
| publishDate | 2017-04-01 |
| publisher | Croatian Society of Chemical Engineers |
| record_format | Article |
| series | Chemical and Biochemical Engineering Quarterly |
| spelling | doaj.art-f2e80f80c80645f0a8359475652999432022-12-22T02:12:43ZengCroatian Society of Chemical EngineersChemical and Biochemical Engineering Quarterly0352-95681846-51532017-04-01311778710.15255/CABEQ.2016.913Combined Approaches to Xylose Production from Corn Stover by Dilute Acid HydrolysisA. Fehér0C. Fehér1M. Rozbach2Z. Barta3Department of Applied Biotechnology and Food Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Budapest, Hungary, Műegyetem rkp. 3. Budapest H-1111, HungaryDepartment of Applied Biotechnology and Food Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Budapest, Hungary, Műegyetem rkp. 3. Budapest H-1111, HungaryDepartment of Applied Biotechnology and Food Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Budapest, Hungary, Műegyetem rkp. 3. Budapest H-1111, HungaryDepartment of Applied Biotechnology and Food Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Budapest, Hungary, Műegyetem rkp. 3. Budapest H-1111, HungaryCorn stover is a lignocellulosic biomass, an agricultural by-product, a possible raw material for xylose production. In this study corn stover was hydrolyzed with sulfuric and hydrochloric acid. In the presented work, hydrochloric acid resulted in the highest, 88.8 % xylose yield of theoretical under the conditions of 2 % (w/w) hydrochloric acid concentration, 40-minute reaction time, 10 % (w/w) dry matter, at 120 °C. Sulfuric acid experiments resulted in 81.9 % xylose yield of theoretical by using 1.5 % (w/w) sulfuric acid, 60-minute reaction time, at 140 °C, 7 % (w/w) dry matter. Acid hydrolysis at low dry matter content resulted in relatively low sugar concentrations. Hydrolyzate recycling concentrated xylose to three-times, while the recycling does not decrease the xylose yields. It is also shown that the pseudo first-order and biphasic kinetic models can be based on total sugar concentrations.http://silverstripe.fkit.hr/cabeq/assets/Uploads/08-1-17.pdfpretreatmentxylosehydrolyzate recyclingkinetic modelling |
| spellingShingle | A. Fehér C. Fehér M. Rozbach Z. Barta Combined Approaches to Xylose Production from Corn Stover by Dilute Acid Hydrolysis Chemical and Biochemical Engineering Quarterly pretreatment xylose hydrolyzate recycling kinetic modelling |
| title | Combined Approaches to Xylose Production from Corn Stover by Dilute Acid Hydrolysis |
| title_full | Combined Approaches to Xylose Production from Corn Stover by Dilute Acid Hydrolysis |
| title_fullStr | Combined Approaches to Xylose Production from Corn Stover by Dilute Acid Hydrolysis |
| title_full_unstemmed | Combined Approaches to Xylose Production from Corn Stover by Dilute Acid Hydrolysis |
| title_short | Combined Approaches to Xylose Production from Corn Stover by Dilute Acid Hydrolysis |
| title_sort | combined approaches to xylose production from corn stover by dilute acid hydrolysis |
| topic | pretreatment xylose hydrolyzate recycling kinetic modelling |
| url | http://silverstripe.fkit.hr/cabeq/assets/Uploads/08-1-17.pdf |
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