Influence of prefiltration on membrane performance during isolation of lignin-carbohydrate complexes from spent sulfite liquor

Al-Rudainy, Basel; Galbe, Mats; Wallberg, Ola

doi:10.1016/j.seppur.2017.06.031

Cited by 28 publications

(41 citation statements)

References 30 publications

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“…25 The same year, Al-Rudainy et al proposed a process for LCCs recovery from spent sulphite liquor. 26 Even if the presence of LCCs in TMP process water has been acknowledged for years while working on hemicelluloses valorisation, only indirect evidences are found in the literature. LCCs have never been quantified in TMP process water and no analytical data are available on their lignin part and LCLs involved.…”

Section: -8mentioning

confidence: 99%

Unveiling TMP Process Water Potential As an Industrial Sourcing of Valuable Lignin–Carbohydrate Complexes toward Zero-Waste Biorefineries

Steinmetz

Villain-Gambier

Klem

et al. 2019

ACS Sustainable Chem. Eng.

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The development of zero waste biorefineries is a promising yet challenging pathway towards a sustainable bioeconomy. Deep insights on the composition of biorefineries side streams along with the development of green technologies are mandatory to achieve such goal. In this paper, a sustainable pilote scale membrane process was used to recover valuable organic matter dissolved in the main side stream of a thermomechanical pulping (TMP) plant. A great number of analytical tools were combined to get an extensive characterisation of the generated fraction, including ICP-AES, HPIC-PAD, FTIR, SEC, 13

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Section: -8mentioning

confidence: 99%

Unveiling TMP Process Water Potential As an Industrial Sourcing of Valuable Lignin–Carbohydrate Complexes toward Zero-Waste Biorefineries

Steinmetz

Villain-Gambier

Klem

et al. 2019

ACS Sustainable Chem. Eng.

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“…The equipment consisted of a 400 mL stirred module, as illustrated in Figure 6. The crossflow velocity was set by changing the rotational velocity of the magnetic rod [41], and the temperature was controlled using a heating plate (MR2002, Heidolph Instruments GmbH & Co.KG, Schwabach, Germany). The pressure was controlled using a valve that was connected to a nitrogen gas supply and monitored with a digital gauge (DCS40.0AR, Trafag AG, Bubikon, Switzerland).…”

Section: Membrane Filtrationmentioning

confidence: 99%

Hemicellulose Recovery from Spent-Sulfite-Liquor: Lignin Removal by Adsorption to Resins for Improvement of the Ultrafiltration Process

2020

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In this work, three polymeric resins were examined as alternatives for the separation of hemicellulose and lignin. The aim was to remove the lignin from spent-sulfite-liquor (SSL) prior to ultrafiltration, producing a hemicellulose-rich retentate with high purity, and increase the capacity of the membrane filtration. The lignin in the SSL was sulfonated; thus, two of the resins were anion exchangers and 1 was hydrophobic. The data from the equilibrium studies and adsorption kinetics were fitted to established models, and the results were interpreted based on these observations. The strongly basic anion exchanger performed best with regard to lignin removal. The adsorption followed the Sips isotherm, indicating that the process was cooperative with chemisorption as the main reaction between the adsorbate and adsorbent based on the kinetics. Regeneration of the adsorbent was also possible, wherein 100 g/L NaCl was sufficient to recover 98% of the lignin. The lignin removal had a positive effect on the ultrafiltration process, in which the flux increased by 38% and the extent of separation between the hemicellulose and lignin rose from 17% to 59%.

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“…lignin, lignans, LCC) present in liquors from paper industries and their final concentration reached in produced extracts. Liquors from chemical pulp processes such as kraft or sulfite processes usually have higher contents of lignin as 30-190 g.L -1 (Kevlich et al, 2017) and 30 g.L -1 (Al-Rudainy et al, 2017) respectively. In comparison lignin content of process water from thermomechanical pulp system was in the range 700-1300 mg.L -1 (Persson et al, 2010b;Zasadowski et al, 2014).…”

Section: Influence Of Membrane Installation Capacity On Capex Opex Amentioning

confidence: 99%

Recovery of lignin and lignans enriched fractions from thermomechanical pulp mill process water through membrane separation technology: Pilot-plant study and techno-economic assessment

Villain-Gambier

Courbalay

Klem

et al. 2020

Journal of Cleaner Production

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Membrane process is a viable option for valuable compounds such as lignin and lignans recovery in aqueous discharges of thermomechanical pulp industries. Recovery of lignin and lignans with continuous mode ultrafiltration/nanofiltration installation has not been studied in detail previously. After flotation used to remove lipophilic matter of pulp mill effluent, the three steps membrane process was composed of a clarification step by a 150 kDa ultrafiltration used to remove suspended matter, followed by two nanofiltrations of 1 kDa and 300 Da to respectively retain lignin and lignans. A techno-economic evaluation of this process has been performed. The process with a plant capacity of 60 m 3 .h-1 was able to produce 12 tons of lignin and 825 kg of lignans per month. The influence of plant capacity between 0.1 and 60 m 3 .h-1 on extracts production cost allows determining a production cost equal or below 10 €.kg-1 as plant capacity reached 10 m 3 .h-1. Valorization of lignin and lignans as parts of the formulas of high added value products could allow thermomechanical plants to head towards 2 biorefinery and cleaner production concepts. Furthemore, the 300 Da permeate possessed the required characteristics to be re used and save fresh water utilization.

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Influence of prefiltration on membrane performance during isolation of lignin-carbohydrate complexes from spent sulfite liquor

Cited by 28 publications

References 30 publications

Unveiling TMP Process Water Potential As an Industrial Sourcing of Valuable Lignin–Carbohydrate Complexes toward Zero-Waste Biorefineries

Unveiling TMP Process Water Potential As an Industrial Sourcing of Valuable Lignin–Carbohydrate Complexes toward Zero-Waste Biorefineries

Hemicellulose Recovery from Spent-Sulfite-Liquor: Lignin Removal by Adsorption to Resins for Improvement of the Ultrafiltration Process

Recovery of lignin and lignans enriched fractions from thermomechanical pulp mill process water through membrane separation technology: Pilot-plant study and techno-economic assessment

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