Two-stage nanofiltration process for high-value chemical production from hydrolysates of lignocellulosic biomass through hydrothermal liquefaction

Hang, Lyu; Chen, Kaifei; Yang, Xiao; Younas, Rafia; Zhu, Xiangdong; Luo, Gang; Zhang, Shicheng; Chen, Jianmin

doi:10.1016/j.seppur.2015.04.032

Cited by 35 publications

(8 citation statements)

References 38 publications

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“…Meanwhile, a series of small molecule chemicals such as acids, furans, and ketones can be obtained by membrane filtration and column chromatography. However, to obtain supercritical condition of high temperature (>300 °C) and pressure (>10 MPa), the process requires high energy consumption. , This drawback can be circumvented by using subcritical HTL with much lower energy demand . However, little is known with regard to heavy metal release and transformation mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Influences of Temperature and Metal on Subcritical Hydrothermal Liquefaction of Hyperaccumulator: Implications for the Recycling of Hazardous Hyperaccumulators

Qian

Zhu

Liu

et al. 2018

Environ. Sci. Technol.

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Waste Sedum plumbizincicola, a zinc (Zn) hyperaccumulator during phytoremediation, was recycled via a subcritical hydrothermal liquefaction (HTL) reaction into multiple streams of products, including hydrochar, bio-oil, and carboxylic acids. Results show approximately 90% of Zn was released from the S. plumbizincicola biomass during HTL at an optimized temperature of 220 °C, and the release risk was mitigated via HTL reaction for hydrochar production. The low-Zn hydrochar (∼200 mg/kg compared to original plant of 1558 mg/kg) was further upgraded into porous carbon (PC) with high porosity (930 m/g) and excellent capability of carbon dioxide (CO) capture (3 mmol/g). The porosity, micropore structure, and graphitization degree of PCs were manipulated by the thermal recalcitrance of hydrochar. More importantly, results showed that the released Zn could effectively promote the production of acetic acid via the oxidation of furfural (FF) and 5-(hydroxymethyl)-furfural (HMF). Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) with negative electrospray ionization analysis confirmed the deoxygenation and depolymerization reactions and the production of long chain fatty acids during HTL reaction of S. plumbizincicola. This work provides a new path for the recycling of waste hyperaccumulator biomass into value-added products.

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Section: Introductionmentioning

confidence: 99%

Influences of Temperature and Metal on Subcritical Hydrothermal Liquefaction of Hyperaccumulator: Implications for the Recycling of Hazardous Hyperaccumulators

Qian

Zhu

Liu

et al. 2018

Environ. Sci. Technol.

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“…HTL is one of the techniques of thermo‐chemical conversion of biomass; HTL produces liquid bio‐oil in the presence of H 2 O and a suitable catalyst at a moderate‐to‐high temperature (200–500 °C) and pressure (5–30 MPa) . A schematic overview of hydrothermal processing is shown in Figure ; a liquid bio‐oil is obtained as the main product, with gaseous‐, aqueous‐, and solid‐phase by‐products, and almost all products can be utilized in the field of advanced carbon materials, chemicals, or traffic industry .…”

Section: Introductionmentioning

confidence: 99%

A review on the operating conditions of producing bio-oil from hydrothermal liquefaction of biomass

Xue

Chen

Zhao

et al. 2016

Int. J. Energy Res.

107

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Hydrothermal liquefaction (HTL) is a promising technology that involves converting biomass into a liquid energy carrier called bio-oil in sub/supercritical water. The unique physico-chemical properties of bio-oil, particularly its remarkably high energy density, renewability, and sustainability, can address current global environmental challenges and energy crisis. This review assesses the influence of operating parameters, including biomass type, reaction temperature, holding time, biomass/H 2 O ratio, heating rate, pressure, and atmosphere, and catalysis, on the yield and quality of bio-oil. The existing problems in HTL are also analyzed, and its further development is explored.

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“…The development of new lignocellulosic biomass pretreatment processes, such as organosolv and alkaline oxidation fractionation, has provided new opportunities for the implementation of nanofiltration (NF) membranes for lignin processing [24][25][26][27][28][29]. The use of membrane cascades, which can combine high selectivity and yield [30,31], has been also proposed for lignin recovery and purification [32,33]. pointing out some review papers for further information about the use of UF and NF membranes for lignin processing [34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Supported Ionic Liquid Membranes and Polymeric Ultrafiltration and Nanofiltration Membranes for Separation of Lignin and Monosaccharides

et al. 2020

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Lignin is one of the three main components of lignocellulosic biomass and must be considered a raw material with attractive applications from an economic and ecological point of view. Therefore, biorefineries must have in mind the most adequate processing to obtain high-quality lignin and the separation tasks that play a key role to improve the purity of the lignin. Separation techniques based on membranes are a promising way to achieve these requirements. In this work, the separation performance of the SILM (Supported Ionic Liquid Membrane) formed with [BMIM] [DBP] as IL (Ionic Liquid) and PTFE as membrane support was compared to a nanofiltration (NF) membrane (NP010 by Microdyn-Nadir) and two ultrafiltration (UF) membranes (UF5 and UF10 by Trisep). The SILM showed selective transport of Kraft lignin, lignosulphonate, xylose, and glucose in aqueous solutions. Although it was stable under different conditions and its performance was improved by the integration of agitation, it was not competitive when compared to NF and UF membranes, although the latter ones suffered fouling. The NF membrane was the best alternative for the separation of lignosulphonates from monosaccharides (separation factors around 75 while SILM attained only values lower than 3), while the UF5 membrane should be selected to separate Kraft lignin and monosaccharides (separation factors around 100 while SILM attained only values below 3).

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Two-stage nanofiltration process for high-value chemical production from hydrolysates of lignocellulosic biomass through hydrothermal liquefaction

Cited by 35 publications

References 38 publications

Influences of Temperature and Metal on Subcritical Hydrothermal Liquefaction of Hyperaccumulator: Implications for the Recycling of Hazardous Hyperaccumulators

Influences of Temperature and Metal on Subcritical Hydrothermal Liquefaction of Hyperaccumulator: Implications for the Recycling of Hazardous Hyperaccumulators

A review on the operating conditions of producing bio-oil from hydrothermal liquefaction of biomass

Comparison of Supported Ionic Liquid Membranes and Polymeric Ultrafiltration and Nanofiltration Membranes for Separation of Lignin and Monosaccharides

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