Production of high concentration bioethanol from reed by combined liquid hot water and sodium carbonate-oxygen pretreatment

Lü, Jie; Song, Fuyu; Líu, Hao; Chang, C. D.; Cheng, Yi; Wang, Haisong

doi:10.1016/j.energy.2020.119332

Cited by 24 publications

(4 citation statements)

References 28 publications

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“…When the process of enzymatic hydrolysis and fermentation was carried out in high substrate concentrations, high concentration of sugar and ethanol could be produced. That could improve the cost-effectiveness of biomass conversion [54,55]. However, with an increase in substrate content, the viscosity of the slurry would increase and the mass transfer would be limited.…”

Section: Optimization Of Fermentation Substrate Content Conditionsmentioning

confidence: 99%

Integrated Bioprocess for Cellulosic Ethanol Production from Wheat Straw: New Ternary Deep-Eutectic-Solvent Pretreatment, Enzymatic Saccharification, and Fermentation

Xian

Zhou

et al. 2022

Fermentation

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Wheat straw (WS) is an excellent raw material for biofuel ethanol production. However, the recalcitrance of WS prevents its efficient utilization. In this study, a novel ternary deep eutectic solvent (DES) was developed for enhancing component separation and enzymatic saccharification of WS. Without any detoxification and sterilization, the DES-treated WS hydrolysate was successfully used to produce ethanol. Overall, this research evaluated the effect of ternary DES pretreatment on WS at various temperatures and adjusted the enzyme load, substrate concentration, and fermentation method of treated WS. The results suggested that the cellulose recovery of treated WS after DES pretreatment (120 °C, 1 h) was 94.73 ± 0.22%, while the removal of xylan and lignin reached 89.53 ± 0.36% and 80.05 ± 0.62%, respectively. Importantly, at enzyme loading of 11.4 filter paper unit (FPU)/g WS with 16% fermentation substrate concentration, 91.15 ± 1.07% of cellulose was hydrolyzed, and the glucose yield was 71.58 ± 1.34%. The maximum ethanol yield of DES-treated WS was 81.40 ± 0.01%.

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Section: Optimization Of Fermentation Substrate Content Conditionsmentioning

confidence: 99%

Integrated Bioprocess for Cellulosic Ethanol Production from Wheat Straw: New Ternary Deep-Eutectic-Solvent Pretreatment, Enzymatic Saccharification, and Fermentation

Xian

Zhou

et al. 2022

Fermentation

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“…Ethanol production at high substrate loadings could effectively decrease the equipment size and reduce the consumption of water and the cost of ethanol separation. Lu et al showed that the bioethanol concentration reached 66.5 g L −1 , and the bioethanol yield of 0.133 g g −1 was achieved by using 21% substrate [ 164 ]. The high substrate concentration is a limiting factor in the heat and mass transfer of the reaction system but also increases the content of inhibitor in the hydrolysate and eventually reduces the conversion efficiency of ethanol.…”

Section: Separation Of Bioethanolmentioning

confidence: 99%

Conversion of Lignocellulose for Bioethanol Production, Applied in Bio-Polyethylene Terephthalate

et al. 2021

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The increasing demand for petroleum-based polyethylene terephthalate (PET) grows population impacts daily. A greener and more sustainable raw material, lignocellulose, is a promising replacement of petroleum-based raw materials to convert into bio-PET. This paper reviews the recent development of lignocellulose conversion into bio-PET through bioethanol reaction pathways. This review addresses lignocellulose properties, bioethanol production processes, separation processes of bioethanol, and the production of bio–terephthalic acid and bio–polyethylene terephthalate. The article also discusses the current industries that manufacture alcohol-based raw materials for bio-PET or bio-PET products. In the future, the production of bio-PET from biomass will increase due to the scarcity of petroleum-based raw materials.

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“…Processing of reed biomass into ethanol is a promising optionethanol concentration of 66.5 g/L is achieved [148]. For this technology to be cost-effective using the four-stage ethanol extraction technology, cheap sustainable electricity for pre-treatment and extraction are required.…”

Section: Managing Aquatic Biomass Residue Issuementioning

confidence: 99%

“…For this technology to be cost-effective using the four-stage ethanol extraction technology, cheap sustainable electricity for pre-treatment and extraction are required. Better treatment operations of reed lignocellulose fraction in future can result in profitable industrial scale reed ethanol production [148]. Remaining fibres are used in the production of biofuels.…”

Section: Managing Aquatic Biomass Residue Issuementioning

confidence: 99%

Aquatic Biological Resource Processing

Ivanovs¹

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Ensuring the recycling of resources and finding the best available technological methods will promote the environmentally friendly use of resources and increase added value. The Thesis deals with the recycling of water resources, analysing the composition of the resources, the treatment technologies and the products to be obtained, also evaluating possible treatments with concrete examples and carrying out experiments. The aim of the Thesis was to investigate the processing of aquatic bioresources and biomass resources into value-added products in order to find the best use of aquatic raw materials and to support the transition towards a more sustainable circular economy using renewable water resources.

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Production of high concentration bioethanol from reed by combined liquid hot water and sodium carbonate-oxygen pretreatment

Cited by 24 publications

References 28 publications

Integrated Bioprocess for Cellulosic Ethanol Production from Wheat Straw: New Ternary Deep-Eutectic-Solvent Pretreatment, Enzymatic Saccharification, and Fermentation

Integrated Bioprocess for Cellulosic Ethanol Production from Wheat Straw: New Ternary Deep-Eutectic-Solvent Pretreatment, Enzymatic Saccharification, and Fermentation

Conversion of Lignocellulose for Bioethanol Production, Applied in Bio-Polyethylene Terephthalate

Aquatic Biological Resource Processing

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