Results 31 to 40 of about 13,006 (256)

Catalytic Fast Pyrolysis of Biomass Impregnated with Potassium Phosphate in a Hydrogen Atmosphere for the Production of Phenol and Activated Carbon

open access: yesFrontiers in Chemistry, 2018
A new technique was proposed to co-produce phenol and activated carbon (AC) from catalytic fast pyrolysis of biomass impregnated with K3PO4 in a hydrogen atmosphere, followed by activation of the pyrolytic solid residues.
Qiang Lu   +5 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Fast Pyrolysis of Four Lignins from Different Isolation Processes Using Py-GC/MS

open access: yesEnergies, 2015
Pyrolysis is a promising approach that is being investigated to convert lignin into higher value products including biofuels and phenolic chemicals. In this study, fast pyrolysis of four types of lignin, including milled Amur linden wood lignin (MWL ...
Xiaona Lin   +5 more
doaj   +1 more source

Fast pyrolysis kinetics of lignocellulosic biomass of varying compositions

open access: yesEnergy Conversion and Management: X, 2021
This study is focused on evaluating the apparent kinetics of fast pyrolysis of different lignocellulosic biomass viz, rice straw, pine wood and empty fruit bunch. The goal of the study is to investigate the effect of biomass composition on kinetics, time
Deepak Kumar Ojha, Daniel Viju, R. Vinu
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Valorization of Hazardous Organic Solid Wastes towards Fuels and Chemicals via Fast (Catalytic) Pyrolysis

open access: yesSustainable Chemistry, 2022
The management of municipal and industrial organic solid wastes has become one of the most critical environmental problems in modern societies. Nowadays, commonly used management techniques are incineration, composting, and landfilling, with the former ...
Kyriazis C. Rekos   +5 more
doaj   +1 more source

Influences of temperature, waste size and residence time on the generation of polycyclic aromatic hydrocarbons during the fast pyrolysis of medical waste [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2020
Mismanagement of Medical wastes can lead to human health and environmental risks. Currently, new pyrolysis technologies are being used to treat medical waste that can reduce the amount of landfilled waste, make it safe, and eventually convert it to a ...
H.R. Zolfagharpour   +5 more
doaj   +1 more source

Stepwise Fast Pyrolysis of Pine Wood

open access: yesEnergy & Fuels, 2012
This paper reports the yields and product composition obtained from the stepwise pyrolysis of pine wood in a fluidized bed reactor. The first step temperature was varied between 260 °C and 360 °C. After the first step, the solid residue was cooled to ambient temperature and pyrolyzed again at 530 °C.
Westerhof, Roel Johannes Maria   +5 more
openaire   +2 more sources

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

open access: yesAdvanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu   +13 more
wiley   +1 more source

CFD-based Biomass Fast Pyrolysis Simulations in a Gas- Solid Vortex Reactor demonstrating Process Intensification

open access: yesChemical Engineering Transactions, 2018
Gas-Solid Vortex Reactors (GSVRs) are a new generation of rotating fluidized beds. The solids beds are closely packed. Gas-solid contact improves, resulting in better heat and mass transfer.
S. Kulkarni   +6 more
doaj   +1 more source

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