Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) process
SO2-ethanol-water (SEW) pulping can be considered a hybrid between solvent and acid sulfite pulping processes. Recently this process in order to separation the principal components (cellulose, hemicelluloses and lignin) have been considered. The main objective of this study was to investigate the ef...
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| Format: | Article |
| Language: | fas |
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Iranian Scientific Association of Wood and Paper Industries
2017-02-01
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| Series: | Iranian Journal of Wood and Paper Industries |
| Subjects: | |
| Online Access: | http://www.ijwp.ir/article_20174_8a23b73a52e9ab4a4b2be44423320b50.pdf |
| _version_ | 1818036544862158848 |
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| author | aliasghar tatari mohammadreza Dehghani Firouzabadi ahmadreza Saraeyan mohammadhadi Aryaie Monfared rahim Yadollahi |
| author_facet | aliasghar tatari mohammadreza Dehghani Firouzabadi ahmadreza Saraeyan mohammadhadi Aryaie Monfared rahim Yadollahi |
| author_sort | aliasghar tatari |
| collection | DOAJ |
| description | SO2-ethanol-water (SEW) pulping can be considered a hybrid between solvent and acid sulfite pulping processes. Recently this process in order to separation the principal components (cellulose, hemicelluloses and lignin) have been considered. The main objective of this study was to investigate the effects of washing method on the bagasse pulping characteristics by acidic fractionation of Sulfur Dioxide- Ethanol-Water (SEW). Variables included two washing pulp methods (water and 40 v/v% ethanol-water solutions), pulping duration (30-100 min.), and temperature (120 and 135 OC). Then, pulps were washed twice with 40% v/v ethanol-water at 60°C (L: W 2 L kg-1) and with deionized water at room temperature (L: W 20 L kg-1). The results showed that the final yield pulp due to lignin greater solubility in 40 v/v % ethanol-water compared to conventional systems (washing by water) decreased that the diminishing returns are statistically significant at the 1% level. Pulping result at 120 and 135 °C at different time period showed that increase in the pulping duration, kappa number is reduced. |
| first_indexed | 2024-12-10T07:12:39Z |
| format | Article |
| id | doaj.art-d63277aae07b4e04976b24b47f7b168d |
| institution | Directory Open Access Journal |
| issn | 2008-9066 2423-3242 |
| language | fas |
| last_indexed | 2024-12-10T07:12:39Z |
| publishDate | 2017-02-01 |
| publisher | Iranian Scientific Association of Wood and Paper Industries |
| record_format | Article |
| series | Iranian Journal of Wood and Paper Industries |
| spelling | doaj.art-d63277aae07b4e04976b24b47f7b168d2022-12-22T01:58:02ZfasIranian Scientific Association of Wood and Paper IndustriesIranian Journal of Wood and Paper Industries2008-90662423-32422017-02-017454955920174Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) processaliasghar tatari0mohammadreza Dehghani Firouzabadi1ahmadreza Saraeyan2mohammadhadi Aryaie Monfared3rahim Yadollahi4M.Sc. Graduate in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural ResourcesAssociate Professor in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural ResourcesAssociate Professor in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural ResourcesAssistant Professor in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural ResourcesPh.D. Student in pulp and paper industry, Gorgan University of Agricultural Sciences & Natural ResourcesSO2-ethanol-water (SEW) pulping can be considered a hybrid between solvent and acid sulfite pulping processes. Recently this process in order to separation the principal components (cellulose, hemicelluloses and lignin) have been considered. The main objective of this study was to investigate the effects of washing method on the bagasse pulping characteristics by acidic fractionation of Sulfur Dioxide- Ethanol-Water (SEW). Variables included two washing pulp methods (water and 40 v/v% ethanol-water solutions), pulping duration (30-100 min.), and temperature (120 and 135 OC). Then, pulps were washed twice with 40% v/v ethanol-water at 60°C (L: W 2 L kg-1) and with deionized water at room temperature (L: W 20 L kg-1). The results showed that the final yield pulp due to lignin greater solubility in 40 v/v % ethanol-water compared to conventional systems (washing by water) decreased that the diminishing returns are statistically significant at the 1% level. Pulping result at 120 and 135 °C at different time period showed that increase in the pulping duration, kappa number is reduced.http://www.ijwp.ir/article_20174_8a23b73a52e9ab4a4b2be44423320b50.pdfRecoveryPulpingSO2-ethanol-water (SEW)Washing methodkappa number |
| spellingShingle | aliasghar tatari mohammadreza Dehghani Firouzabadi ahmadreza Saraeyan mohammadhadi Aryaie Monfared rahim Yadollahi Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) process Iranian Journal of Wood and Paper Industries Recovery Pulping SO2-ethanol-water (SEW) Washing method kappa number |
| title | Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) process |
| title_full | Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) process |
| title_fullStr | Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) process |
| title_full_unstemmed | Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) process |
| title_short | Effects of washing method on the bagasse pulping characteristics by Sulfur Dioxide- Ethanol-Water (SEW) process |
| title_sort | effects of washing method on the bagasse pulping characteristics by sulfur dioxide ethanol water sew process |
| topic | Recovery Pulping SO2-ethanol-water (SEW) Washing method kappa number |
| url | http://www.ijwp.ir/article_20174_8a23b73a52e9ab4a4b2be44423320b50.pdf |
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