Effects of aqueous phase circulation and catalysts on hydrothermal liquefaction (HTL) of penicillin residue (PR): Characteristics of the aqueous phase, solid residue and bio oil

Hong, Chen; Wang, Zhiqiang; Si, Yanxiao; Li, Zaixing; Xing, Yi; Hu, Jiashuo; Li, Yifei

doi:10.1016/j.scitotenv.2021.145596

Cited by 23 publications

(8 citation statements)

References 51 publications

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“…Aqueous phase circulation has proven to be effective in facilitating the transfer of organic matter from the aqueous phase to bio-crude, resulting in a signicant increase in bio-crude yield from 26.09 wt% to 33.72 wt% and improving energy recovery efficiency. 171 The bio-crude made by HTL has a high thermal stability with high carbon (70-80 wt%) contents and a heat of combustion value (37.5-40 MJ kg −1 ) comparable to that of crude oil (45 MJ kg −1 ) and the total carbon yield (60-70%) is in the process 172,173 and HTL bio-crude elemental composition compared to conventional crude has been summarized in Table 7. An extremely important indicator to assess the quality of the biocrude is the ratio of H/C.…”

Section: Discussionmentioning

confidence: 99%

The future of aviation soars with HTL-based SAFs: exploring potential and overcoming challenges using organic wet feedstocks

Usman

Cheng

Boonyubol

et al. 2023

Sustainable Energy Fuels

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Section: Discussionmentioning

confidence: 99%

The future of aviation soars with HTL-based SAFs: exploring potential and overcoming challenges using organic wet feedstocks

Usman

Cheng

Boonyubol

et al. 2023

Sustainable Energy Fuels

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“…Additionally, the sustainability of this method needs to be addressed since the use of catalysts requires specialized recycling methods, and it adds to the operational cost, approximately 500 USD per 50 g [65]. Using a similar setup, testing penicillin residue instead, Hong et al [66] reported an energy recovery rate of 49%, increasing with the cycle numbers up to 65% (after three cycles). The addition of catalyst improved the energy recovery rate, reporting 63% without any cycle but reducing after three cycles to 55%.…”

Section: Efficiency Comparison Of the Acid Pretreatment And Continuou...mentioning

confidence: 99%

Sustainable Valorization of Wood Residue for the Production of Biofuel Materials Via Continuous Flow Hydrothermal Liquefaction

Acaru

Abdullah

Lim

2023

Waste Biomass Valor

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Almost half of the wood resulted from mass deforestation for infrastructure and agricultural developments is declared waste. To mitigate the impact and exploit renewable sources of energy sustainably it is paramount to explore their further utilizations. Hydrothermal liquefaction (HTL) technology holds the promise to convert biomass into biofuels. In this study, conversion of wood residue under continuous flow, subcritical HTL was investigated under two conditions; untreated and alkaline pretreated. Results show that 4% NaOH pretreatment increased the production of fermentation sugar, glucose, by 1.8-fold (equivalent to 90 g/L) and facilitated faster recovery times compared to raw wood. Also, at 0.2 MPa HTL, the alkaline pretreatment shifted the hydrolysis of arabinose and cellobiose to rhamnose and increased the fluid's acidity from pH of 6.1 to pH of 3.5. Under the pretreatment, the energy output from glucose reached 246 kJ and the average Net Energy Ratio for glucose during liquefaction reached values as high as 63%. These results will usher in new waste conversion methods into sustainable biofuels via continuous flow HTL, thereby supporting the green energy transition towards net zero.

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“…Penicillin fermentation residue (PR) is the residue produced during the penicillin preparation process, which is classified as hazardous solid waste in China ( Hong et al, 2021 ), and is also a kind of biomass that needs to be urgently treated because of environmental pollution and the generation of antibiotic resistance genes ( Ren et al, 2021 ). PR is rich in organic matter and considered one of the excellent raw materials for preparing biochar by pyrolysis ( Wei et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Efficient removal of tetracycline from aqueous solution by K2CO3 activated penicillin fermentation residue biochar

et al. 2022

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In this study, biochar was prepared using penicillin fermentation residue (PR) as the raw material by different methods. The adsorption behavior and adsorption mechanism of biochar on tetracycline (TC) in an aqueous environment were investigated. The results showed that K2CO3 as an activator could effectively make porous structures, and that biochar with mesoporous or microporous could be prepared in a controlled manner with two kinds of different activation methods, the dry mixing method and the impregnation method. The dry mixing method could create more mesopores, while the impregnation method could prepare more micropores. Microporous biochar (IKBCH) with a high specific surface area could be prepared by the impregnation method combined with HCl soaking, which has an excellent adsorption effect on tetracycline. When the concentration of tetracycline was 200 mg/L, the removal rate of 99.91% could be achieved with the dosage of microporous biochar at 1 g/L. The adsorption process was in accordance with the Langmuir model and the pseudo-second-order model, respectively. The maximum adsorption capacity of IKBCH was 268.55 mg/g (25°C). The adsorption mechanisms were pore filling, π-π interaction, electrostatic adsorption, and hydrogen bond. Its stable and wide applicability adsorption process does not cause ecological pollution in the aqueous environment, and it is a promising biochar adsorbent.

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Effects of aqueous phase circulation and catalysts on hydrothermal liquefaction (HTL) of penicillin residue (PR): Characteristics of the aqueous phase, solid residue and bio oil

Cited by 23 publications

References 51 publications

The future of aviation soars with HTL-based SAFs: exploring potential and overcoming challenges using organic wet feedstocks

The future of aviation soars with HTL-based SAFs: exploring potential and overcoming challenges using organic wet feedstocks

Sustainable Valorization of Wood Residue for the Production of Biofuel Materials Via Continuous Flow Hydrothermal Liquefaction

Efficient removal of tetracycline from aqueous solution by K2CO3 activated penicillin fermentation residue biochar

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