Pyrolysis of waste biomass represents a key route for the circular economy and promising solution generation valuable chemicals liquid biofuels. The complex multi-component multi-phase nature process, however, poses challenge in acquiring comprehensive experimental data on devolatilization. These are essential refining kinetic schemes optimizing technology. This work presents novel methodology suitable collection kinetically relevant devolatilization combined with complete characterization...

Solid wastes of organic origins are potential feedstocks for the production liquid biofuels, which could be suitable alternatives to fossil fuels transport and heating sectors, as well industrial use. By hydrothermal liquefaction, wet biomass is partially transformed into a water-immiscible, oil-like matter called bio-oil. In this study, an integrated NMR spectroscopy/mass spectrometry approach has been developed characterization liquefaction bio-oil at molecular level. (1)H (13)C...

Among biofuels, the bio-oil produced by hydrothermal liquefaction of waste biomass can be considered an alternative to fossil fuels in industry as well transport and heating compartments. The complex composition is directly dependent upon specific used feedstock process for chemical conversion. coexistence proteins lipids explain, principle, high percentage fatty acid amides found bio-oil. In present study, a sample have been separated gas chromatography identified at first on basis their...

Organic solid wastes are potential feedstocks for the production of liquid biofuels, which could be suitable alternatives to fossil fuels transport and heating sectors industrial use as well. By hydrothermal liquefaction (HTL), wet biomass is partially transformed into a water-immiscible oil-like organic matter called bio-oil. In this study, three different mass spectrometric ionization techniques, namely, ESI, APCI, APPI, in combination with high-resolution FTICR analyzer were used...

Hydrothermal liquefaction (HTL) can thermochemically transform sewage sludge into a biocrude with high energy content, chemical complexity, and O N content. The development of an efficient upgrading process for such complex feedstocks necessitates detailed knowledge the molecular composition specific heteroatom-containing compounds to understand optimize hydrotreating reactions. In this study, we present sludge-derived HTL via two-stage hydrotreatment perform advanced characterization...

In the conversion of heavy oil into valuable fuels by thermal processes, one main problems is formation soft coke-like substances that can cause equipment fouling and catalyst deactivation. Asphaltenes are present in large quantity crude known to be coke precursors. The objective study was obtain chemical structure information about asphaltene molecules when they undergo a treatment investigate mechanism formation. were separated from two industrial treated oils characterized elemental...

Characterization and classification of crude oil is done following different approaches. Geochemistry investigations on one hand are focused finding quantifying markers characteristic the oil, to provide detailed information about geological history, conditions sedimentation source rock. On other Fourier transform ion cyclotron mass spectrometry (FTICR MS) has been proved be a powerful tool in analysis at molecular level. In this study, group fourteen samples coming from fields around world...

Abstract Binary and ternary mixtures of cellulose, bovine serum albumin (BSA) tripalmitin, as biomass reference compounds for carbohydrates, proteins triglycerides, respectively, were treated under hydrothermal liquefaction (HTL) conditions to describe the main reaction pathways involved in process bio‐oil production from municipal organic wastes. Several analytical techniques (elemental analysis, GC–MS, atmospheric‐pressure photo‐ionisation high‐resolution Fourier transform ion cyclotron...

Abstract Plant‐based technologies are suited to remove low moderate contamination. Plants can take up heavy metal ions but often sensitive organic contaminants and grow slowly with only a slight remediation effect. Multiple approaches be useful accelerate remediation. The combined action of hydrocarbon‐degrading plant growth‐promoting indigenous bacteria enhance phytoremediation. A three‐step approach (landfarming, bioaugmentation, phytoremediation) was applied disused industrial area...

Due to the high versatility of Polyurethane (PUR), its share amongst synthetic polymers manufacture consumer goods is increasing. This study proposes, tests and validates through pilot processing a highly efficient method for carbon recovery PUR in form an oil phase concentrated using hydrothermal liquefaction (HTL). Hot liquid water mixed with residues lignocellulosic material (two species Miscanthus) were treated at subcritical temperatures, generating oil-phase rich hydrocarbons. A...

Co-processing renewable feedstock in existing refineries could be a prompt and ready-to-use approach to decarbonize the transportation sector, without large modifications current processing infrastructures. In this study, we explore possibility of codistilling blend fossil crude with hydrothermal liquefaction (HTL) biocrude from primary sewage sludge. HTL is indeed gaining an increasingly relevant role, because it can produced huge variety biomass feedstock, including wet byproducts, no...

Organic solid wastes such as sewage sludge are potential feedstocks for the production of drop-in biofuels. Hydrothermal liquefaction (HTL) is a process that converts wet into an organic biocrude. To fulfill industrial fuel standards, considerable heteroatom content biocrude needs to be lowered by downstream processes. Nitrogen (N) contained in several compounds poses challenge and yet, complex chemical composition HTL-biocrude samples has hindered detailed analysis understanding. In...

Lanthanides are easily extracted as N,N-dibutylcarbamato complexes from aqueous solutions of their chlorides into heptane dibutylamine saturated with CO2. The products recovered in high yields and soluble hydrocarbons. derivatives [Ln(O2CNBu2)3]n [Ln = Nd (1), Eu (2), Tb (3)], [NH2Bu2]2[Ln4(CO3)(O2CNBu2)12] (4), Sm (5), (6)], [Sm4(CO3)(O2CNBu2)10], 7, have thus been obtained. crystal molecular structure 4 has solved; the samarium europium 5 6 were found to be isostructural. Mass spectra 1–3,...

The development and widespread application of organic electronic devices require the availability simple cost-effective suitable materials. In this study, preparation a new class conjugated compounds on basis dithienocyclohexanone (DTCH) core is reported. Several synthetic strategies for dialkyl DTCH derivatives are explored, with special emphasis establishment sustainable access. Two successful pathways, both consisting five steps, identified: first one featuring readily available...

Hydrothermal liquefaction biocrude from non-lignocellulosic feedstocks often shows properties, such as a high presence of inorganics, oxygen and especially nitrogen content, which are challenging in view hydroprocessing for the production drop-in biofuels. In particular, removal requires severe conditions, that might compromise continuous operations affect yield different hydrocarbon fractions. This work demonstrates possibility successful long-time microalgae biocrude, feed with content...

Glucose and cellulose as model compounds were treated under hydrothermal liquefaction (HTL) conditions to describe the main reaction pathways that are involved in process. The HTL-derived phases (gas phase, bio-oil, aqueous solid residue) fully characterized by a combination of analytical techniques [i.e., elemental analysis (EA), gas chromatography–mass spectrometry (GC–MS), electrospray ionization/atmospheric pressure photoionization Fourier transform ion cyclotron resonance–mass (ESI/APPI...

Microalgae contain many bioactive compounds, which may be exploited in food and nutraceutical fields. Bisphenol A (BPA) is a contaminant microalgae that released from polymeric plastics. Since it responsible for toxic effects on humans, the European legislation set legal BPA limit within foods at 50 µg kg−1 of weight. In this work, fast ultrasounds solid-liquid extraction commercial microalgal powders Chlorella vulgaris, Arthrospira Platensis Scenedesmus sp. was optimized. To increase...