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Synthetic polymers constitute one of the main carbon-containing wastes generated nowadays. In this study, combined hydrothermal liquefaction (co-HTL) is evaluated for 1:1 mixtures of Miscanthus Giganteus and different synthetic polymers…

Chemical Physics · Physics 2021-10-19 Juliano Souza dos Passos , Marianne Glasius , Patrick Biller

Hydrothermal liquefaction (HTL) followed by catalytic hydrotreating of the produced biocrude is increasingly gaining ground as an effective technology for the conversion of biomass into liquid biofuels. A strong advantage of HTL resides in…

Chemical Physics · Physics 2019-04-12 Daniele Castello , Muhammad Salman Haider , Lasse Aistrup Rosendahl

Due to the high versatility of Polyurethane (PUR), its share amongst synthetic polymers to manufacture consumer goods is increasing. This study proposes, tests and validates through pilot processing a highly efficient method for carbon…

Chemical Physics · Physics 2021-10-19 Juliano Souza dos Passos , Stefano Chiaberge , Patrick Biller

The beneficial use of sewage sludge for valorization of carbon and nutrients is of increasing interest while micropollutants in sludge are of concern to the environment and human health. This study investigates the hydrothermal liquefaction…

Accumulation of plastic waste is a major environmental problem. Enzymes, particularly esterases, play an important role in the biodegradation of polyesters. These enzymes are usually only active on aliphatic polyesters, but a few have…

Biomolecules · Quantitative Biology 2019-04-01 Beatriz C. Almeida , Pedro Figueiredo , Alexandra T. P. Carvalho

In this study faecal sludge is used as raw biomass due to its abundance, low cost, and easy availability. After HTL operation, product separation is getting challenging. Current developed studies observed the separation of aqueous and…

Signal Processing · Electrical Eng. & Systems 2024-02-28 H M Fairooz Adnan , Md Khalekuzzaman , Md. Atik Fayshal , Md. Mehedi Hasan

Ceramics are typically brittle at ambient conditions due to their covalent or ionic bonding and limited dislocation activities. While plasticity, and occasionally superplasticity, can be achieved in ceramics at high temperatures through…

Plastic waste entering the environment through landfilling or improper disposal poses substantial risks to ecosystems and human health. Photoreforming is emerging as a clean photocatalytic technology that degrades plastic waste to organic…

Materials Science · Physics 2024-08-21 Thanh Tam Nguyen , Kaveh Edalati

Sewage sludge, a biosolid product of wastewater processing, is an often-overlooked source of rich organic waste. Hydrothermal processing (HTP), which uses heat and pressure to convert biomass into various solid, liquid, and gaseous…

The technical and economic feasibility to deliver sustainable liquid biocrude through hydrothermal liquefaction (HTL) while enabling negative carbon dioxide emissions is evaluated in this paper, looking into the potential of the process in…

Chemical Physics · Physics 2020-09-09 E. M. Lozano , T. H. Pedersen , L. A. Rosendahl

Heavy plastic shear deformation at relatively low homologous temperatures is called high-pressure torsion (HPT) deformation, which is one method of severe plastic deformation (SPD). The aim of the paper is to give an overview of a new…

Materials Science · Physics 2020-09-09 Andrea Bachmaier , Reinhard Pippan

Recycling has become a predominant subject in industry and science due to a rising concern for the environment driven by high production volume of plastics. Replacement of virgin polymers with their recycled analogs is not always possible…

Materials Science · Physics 2024-04-17 A. D. Drozdov , R. Hoj Jermiin , J. deClaville Christiansen

Widely available vegetable oils were readily derivatized into chemically pure ABn-type monomers (n = 2 or 3). Their polymerization led to unprecedented hyperbranched polyesters. Four different AB2/AB3-type monomers bearing one A-type methyl…

Applied Physics · Physics 2019-11-19 Blandine Testud , Didier Pintori , Etienne Grau , Daniel Taton , Henri Cramail

Understanding the degradation mechanisms of aliphatic polymers by thermal oxidation and radio-oxidation is very important in order to assess their lifetime in a variety of industrial applications. We focus here on polyethylene as a…

Soft Condensed Matter · Physics 2021-07-01 Yunho Ahn , Xavier Colin , Guido Roma

Poly(ethylene oxide)-$\textit{b}$-poly(butylmethacrylate) (PEO-$\textit{b}$-PBMA) copolymers have recently been identified as excellent building blocks for the synthesis of hierarchical nanoporous materials. Nevertheless, while experiments…

Soft Condensed Matter · Physics 2021-06-01 Gerardo Campos-Villalobos , Flor R. Siperstein , Arvin Charles , Alessandro Patti

Biodegradability is a key feature for the application of polymeric devices in medicine. This study reports an experimental and theoretical study of the degradation of poly(thioether-ester) (PTEe) nanoparticles in aqueous media. The…

Effective catalytic hydrotreatment of highly nitrogenous biocrudes derived from the hydrothermal liquefaction (HTL) of primary sewage sludge and microalga Spirulina biomass was explored. A critical issue is the lack of thermal stability of…

Chemical Physics · Physics 2020-06-25 Muhammad Salman Haider , Daniele Castello , Lasse Aistrup Rosendahl

Aqueous hydrolysis is used to chemically recycle polyethylene terephthalate (PET) due to the production of high-quality terephthalic acid (TPA), the PET monomer. PET hydrolysis depends on various reaction conditions including PET size,…

Machine Learning · Computer Science 2022-02-01 Hossein Abedsoltan , Zeinab Zoghi , Amir H. Mohammadi

A generic approach is proposed for the estimation of advanced biocrudes properties from liquefied biomass and the enthalpy of formation of biomass feedstocks applicable to the modeling of biomass conversion processes where the exact…

Chemical Physics · Physics 2019-08-05 Eliana M. Lozano , Thomas H. Pedersen , Lasse Rosendahl

We have studied the phase behavior of the poly(n-butyl acrylate)-b-poly(acrylic acid) block copolymer in a mixture of two miscible solvents, water and tetrahydrofuran (THF). The techniques used to examine the different polymers, structures…

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