Optimized Furfural Production Using the Acid Catalytic Conversion of Xylan Liquor from Organosolv-Fractionated Rice Husk
This study determined the optimal production of furfural (FuR) from liquid hydrolysate xylan liquor obtained through a two-stage pretreatment process using NaOH for de-ashing and EtOH for the delignification of raw rice husk (RH). The de-ashing pretreatment was conducted at 150 °C, with 6.0% (<i&...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Polysaccharides |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-4176/5/4/35 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850086866588532736 |
|---|---|
| author | Hyeong Gyun Ahn Ja Eun Lee Hyunjoon Kim Hyun Jin Jung Kyeong Keun Oh Su Hak Heo Jun Seok Kim |
| author_facet | Hyeong Gyun Ahn Ja Eun Lee Hyunjoon Kim Hyun Jin Jung Kyeong Keun Oh Su Hak Heo Jun Seok Kim |
| author_sort | Hyeong Gyun Ahn |
| collection | DOAJ |
| description | This study determined the optimal production of furfural (FuR) from liquid hydrolysate xylan liquor obtained through a two-stage pretreatment process using NaOH for de-ashing and EtOH for the delignification of raw rice husk (RH). The de-ashing pretreatment was conducted at 150 °C, with 6.0% (<i>w</i>/<i>v</i>) NaOH and a reaction time of 40 min. The optimal conditions for delignification pretreatment, performed using an organosolv fractionation method with EtOH, were a reaction temperature of 150 °C, 60% (<i>v</i>/<i>v</i>) EtOH, 0.25% (<i>w</i>/<i>v</i>) H<sub>2</sub>SO<sub>4</sub>, and a reaction time of 90 min. Through a two-stage pretreatment process, a liquid hydrolysate in the form of xylan liquor was obtained, which was subjected to an acid catalytic conversion process to produce FuR. The process conditions were varied, with reaction temperatures of 130–170 °C, H<sub>2</sub>SO<sub>4</sub> catalyst concentrations of 1.0–3.0 wt.%, and reaction times of 0–90 min. The Response Surface Methodology tool was used to identify the optimal FuR yield from xylan liquor. Ultimately, the optimal process conditions for the acid catalytic conversion were found to be a substrate-to-catalyst ratio of 2:8, a reaction temperature of 168.9 °C, a catalyst concentration of 1.9 wt.%, and a reaction time of 41.24 min, achieving an FuR yield of 67.31%. |
| format | Article |
| id | doaj-art-3db33c0032c64cd2b34bb71aa5be3798 |
| institution | DOAJ |
| issn | 2673-4176 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polysaccharides |
| spelling | doaj-art-3db33c0032c64cd2b34bb71aa5be37982025-08-20T02:43:20ZengMDPI AGPolysaccharides2673-41762024-10-015455256610.3390/polysaccharides5040035Optimized Furfural Production Using the Acid Catalytic Conversion of Xylan Liquor from Organosolv-Fractionated Rice HuskHyeong Gyun Ahn0Ja Eun Lee1Hyunjoon Kim2Hyun Jin Jung3Kyeong Keun Oh4Su Hak Heo5Jun Seok Kim6Department of Chemical Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Suwon 16227, Gyeonggi, Republic of KoreaDepartment of Chemical Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Suwon 16227, Gyeonggi, Republic of KoreaDepartment of Chemical Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Suwon 16227, Gyeonggi, Republic of KoreaR&D Center, SugarEn Co., Ltd., Yongin 16890, Gyeonggi, Republic of KoreaR&D Center, SugarEn Co., Ltd., Yongin 16890, Gyeonggi, Republic of KoreaDepartment of Medicinal Bioscience, Konkuk University, Chungju 27478, Chungcheongbuk-do, Republic of KoreaDepartment of Chemical Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Suwon 16227, Gyeonggi, Republic of KoreaThis study determined the optimal production of furfural (FuR) from liquid hydrolysate xylan liquor obtained through a two-stage pretreatment process using NaOH for de-ashing and EtOH for the delignification of raw rice husk (RH). The de-ashing pretreatment was conducted at 150 °C, with 6.0% (<i>w</i>/<i>v</i>) NaOH and a reaction time of 40 min. The optimal conditions for delignification pretreatment, performed using an organosolv fractionation method with EtOH, were a reaction temperature of 150 °C, 60% (<i>v</i>/<i>v</i>) EtOH, 0.25% (<i>w</i>/<i>v</i>) H<sub>2</sub>SO<sub>4</sub>, and a reaction time of 90 min. Through a two-stage pretreatment process, a liquid hydrolysate in the form of xylan liquor was obtained, which was subjected to an acid catalytic conversion process to produce FuR. The process conditions were varied, with reaction temperatures of 130–170 °C, H<sub>2</sub>SO<sub>4</sub> catalyst concentrations of 1.0–3.0 wt.%, and reaction times of 0–90 min. The Response Surface Methodology tool was used to identify the optimal FuR yield from xylan liquor. Ultimately, the optimal process conditions for the acid catalytic conversion were found to be a substrate-to-catalyst ratio of 2:8, a reaction temperature of 168.9 °C, a catalyst concentration of 1.9 wt.%, and a reaction time of 41.24 min, achieving an FuR yield of 67.31%.https://www.mdpi.com/2673-4176/5/4/35rice husk (RH)pretreatmentxylan liquoracid catalytic conversionRSM |
| spellingShingle | Hyeong Gyun Ahn Ja Eun Lee Hyunjoon Kim Hyun Jin Jung Kyeong Keun Oh Su Hak Heo Jun Seok Kim Optimized Furfural Production Using the Acid Catalytic Conversion of Xylan Liquor from Organosolv-Fractionated Rice Husk Polysaccharides rice husk (RH) pretreatment xylan liquor acid catalytic conversion RSM |
| title | Optimized Furfural Production Using the Acid Catalytic Conversion of Xylan Liquor from Organosolv-Fractionated Rice Husk |
| title_full | Optimized Furfural Production Using the Acid Catalytic Conversion of Xylan Liquor from Organosolv-Fractionated Rice Husk |
| title_fullStr | Optimized Furfural Production Using the Acid Catalytic Conversion of Xylan Liquor from Organosolv-Fractionated Rice Husk |
| title_full_unstemmed | Optimized Furfural Production Using the Acid Catalytic Conversion of Xylan Liquor from Organosolv-Fractionated Rice Husk |
| title_short | Optimized Furfural Production Using the Acid Catalytic Conversion of Xylan Liquor from Organosolv-Fractionated Rice Husk |
| title_sort | optimized furfural production using the acid catalytic conversion of xylan liquor from organosolv fractionated rice husk |
| topic | rice husk (RH) pretreatment xylan liquor acid catalytic conversion RSM |
| url | https://www.mdpi.com/2673-4176/5/4/35 |
| work_keys_str_mv | AT hyeonggyunahn optimizedfurfuralproductionusingtheacidcatalyticconversionofxylanliquorfromorganosolvfractionatedricehusk AT jaeunlee optimizedfurfuralproductionusingtheacidcatalyticconversionofxylanliquorfromorganosolvfractionatedricehusk AT hyunjoonkim optimizedfurfuralproductionusingtheacidcatalyticconversionofxylanliquorfromorganosolvfractionatedricehusk AT hyunjinjung optimizedfurfuralproductionusingtheacidcatalyticconversionofxylanliquorfromorganosolvfractionatedricehusk AT kyeongkeunoh optimizedfurfuralproductionusingtheacidcatalyticconversionofxylanliquorfromorganosolvfractionatedricehusk AT suhakheo optimizedfurfuralproductionusingtheacidcatalyticconversionofxylanliquorfromorganosolvfractionatedricehusk AT junseokkim optimizedfurfuralproductionusingtheacidcatalyticconversionofxylanliquorfromorganosolvfractionatedricehusk |