Recovery of <em>N</em>-Methylmorpholine <em>N</em>-Oxide (NMMO) in Lyocell Fibre Manufacturing Process
The lyocell process offers an environmentally friendly strategy to produce regenerated cellulose fibre from biomass. However, it is critical to recover and reuse the <i>N</i>-methyl-morpholine-<i>N</i>-oxide (NMMO) solvent to maximize the environmental benefits and lower the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Fibers |
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| Online Access: | https://www.mdpi.com/2079-6439/13/1/3 |
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| author | Maria Sawiak Bernardo A. Souto Lelia Lawson Joy Lo Patricia I. Dolez |
| author_facet | Maria Sawiak Bernardo A. Souto Lelia Lawson Joy Lo Patricia I. Dolez |
| author_sort | Maria Sawiak |
| collection | DOAJ |
| description | The lyocell process offers an environmentally friendly strategy to produce regenerated cellulose fibre from biomass. However, it is critical to recover and reuse the <i>N</i>-methyl-morpholine-<i>N</i>-oxide (NMMO) solvent to maximize the environmental benefits and lower the cost. This article reviews NMMO recovery and characterization techniques at the lab and industrial scales, and methods to limit the NMMO degradation during the process. The article also presents the results of a pilot study investigating the recovery of NMMO from lyocell manmade cellulosic fibre (L-MMCF) manufacturing wastewater. The work described includes the development of a calibration curve for the determination of NMMO content in aqueous solutions using Fourier Transform Infrared Spectroscopy (FTIR). Successful NMMO recovery from the wastewater was achieved using a rotary evaporator: the final NMMO concentration was 50, i.e., ready for use in the lyocell process, and no NMMO degradation was observed. The knowledge in this paper will support advances in L-MMCF manufacturing and the reduction in textile environmental footprint. |
| format | Article |
| id | doaj-art-2550285c8f764803a5834cf66afc86e8 |
| institution | Kabale University |
| issn | 2079-6439 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fibers |
| spelling | doaj-art-2550285c8f764803a5834cf66afc86e82025-01-24T13:32:12ZengMDPI AGFibers2079-64392025-01-01131310.3390/fib13010003Recovery of <em>N</em>-Methylmorpholine <em>N</em>-Oxide (NMMO) in Lyocell Fibre Manufacturing ProcessMaria Sawiak0Bernardo A. Souto1Lelia Lawson2Joy Lo3Patricia I. Dolez4Department of Human Ecology, University of Alberta, Edmonton, AB T6G 2N1, CanadaDepartment of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, CanadaDepartment of Human Ecology, University of Alberta, Edmonton, AB T6G 2N1, CanadaDepartment of Human Ecology, University of Alberta, Edmonton, AB T6G 2N1, CanadaDepartment of Human Ecology, University of Alberta, Edmonton, AB T6G 2N1, CanadaThe lyocell process offers an environmentally friendly strategy to produce regenerated cellulose fibre from biomass. However, it is critical to recover and reuse the <i>N</i>-methyl-morpholine-<i>N</i>-oxide (NMMO) solvent to maximize the environmental benefits and lower the cost. This article reviews NMMO recovery and characterization techniques at the lab and industrial scales, and methods to limit the NMMO degradation during the process. The article also presents the results of a pilot study investigating the recovery of NMMO from lyocell manmade cellulosic fibre (L-MMCF) manufacturing wastewater. The work described includes the development of a calibration curve for the determination of NMMO content in aqueous solutions using Fourier Transform Infrared Spectroscopy (FTIR). Successful NMMO recovery from the wastewater was achieved using a rotary evaporator: the final NMMO concentration was 50, i.e., ready for use in the lyocell process, and no NMMO degradation was observed. The knowledge in this paper will support advances in L-MMCF manufacturing and the reduction in textile environmental footprint.https://www.mdpi.com/2079-6439/13/1/3n-methyl-morpholine-n-oxide (NMMO)lyocell processNMMO recoveryNMMO content determinationFourier Transform Infrared Spectroscopy (FTIR) |
| spellingShingle | Maria Sawiak Bernardo A. Souto Lelia Lawson Joy Lo Patricia I. Dolez Recovery of <em>N</em>-Methylmorpholine <em>N</em>-Oxide (NMMO) in Lyocell Fibre Manufacturing Process Fibers n-methyl-morpholine-n-oxide (NMMO) lyocell process NMMO recovery NMMO content determination Fourier Transform Infrared Spectroscopy (FTIR) |
| title | Recovery of <em>N</em>-Methylmorpholine <em>N</em>-Oxide (NMMO) in Lyocell Fibre Manufacturing Process |
| title_full | Recovery of <em>N</em>-Methylmorpholine <em>N</em>-Oxide (NMMO) in Lyocell Fibre Manufacturing Process |
| title_fullStr | Recovery of <em>N</em>-Methylmorpholine <em>N</em>-Oxide (NMMO) in Lyocell Fibre Manufacturing Process |
| title_full_unstemmed | Recovery of <em>N</em>-Methylmorpholine <em>N</em>-Oxide (NMMO) in Lyocell Fibre Manufacturing Process |
| title_short | Recovery of <em>N</em>-Methylmorpholine <em>N</em>-Oxide (NMMO) in Lyocell Fibre Manufacturing Process |
| title_sort | recovery of em n em methylmorpholine em n em oxide nmmo in lyocell fibre manufacturing process |
| topic | n-methyl-morpholine-n-oxide (NMMO) lyocell process NMMO recovery NMMO content determination Fourier Transform Infrared Spectroscopy (FTIR) |
| url | https://www.mdpi.com/2079-6439/13/1/3 |
| work_keys_str_mv | AT mariasawiak recoveryofemnemmethylmorpholineemnemoxidenmmoinlyocellfibremanufacturingprocess AT bernardoasouto recoveryofemnemmethylmorpholineemnemoxidenmmoinlyocellfibremanufacturingprocess AT lelialawson recoveryofemnemmethylmorpholineemnemoxidenmmoinlyocellfibremanufacturingprocess AT joylo recoveryofemnemmethylmorpholineemnemoxidenmmoinlyocellfibremanufacturingprocess AT patriciaidolez recoveryofemnemmethylmorpholineemnemoxidenmmoinlyocellfibremanufacturingprocess |