Results 31 to 40 of about 18,682 (226)

Fatty acid methyl esters yield and phorbol esters degradation during transesterification of Jatropha curcas oil by alkaline, acid and enzyme catalyzed method

open access: yesRenewable Energy and Environmental Sustainability, 2017
Jatropha curcas has recently been the focus of intense research as a raw material of biomass fuel. However, the carcinogenesis promoter action of the phorbol esters in the Jatropha raises concerns for health and environmental risk.
Tosa Koji, Ishizuka Tomoki
doaj   +1 more source

3D Printing of Self‐Healing Polymers by Material Extrusion: A Process‐Centric Review of Setups, Parameters, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
This review highlights recent advances in material extrusion 3D printing of self‐healing polymers, focusing on the interplay between material chemistry, rheology, hardware customization, and process optimization. Filament‐ and ink‐based extrusion strategies, multimaterial architectures, and postprocessing approaches are discussed for applications in ...
Antonio Pavone   +2 more
wiley   +1 more source

Advanced Chemical Reactor Technologies for Biodiesel Production from Vegetable Oils - A Review

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2016
Biodiesel is an alternative biofuel that can replace diesel oil without requiring modifications to the engine and advantageously produces cleaner emissions.
Luqman Buchori   +2 more
doaj   +1 more source

Bidirectional Disulfide Metathesis Enables Recycling of High‐Performance Thermoset Networks

open access: yesAdvanced Science, EarlyView.
A cyclic aromatic disulfide comonomer enables dual‐mode recyclable pDCPD thermosets through bidirectional disulfide metathesis. The resulting networks combine enhanced mechanical performance with thermal reprocessability and chemical depolymerization into reusable oligomeric fragments, allowing regeneration of high‐performance thermosets with minimal ...
Bohan Li   +8 more
wiley   +1 more source

Microwave-assisted transesterification of sour cherry kernel oil for biodiesel production: comparison with ultrasonic bath-, ultrasonic probe-, and ohmic-assisted transesterification methods

open access: yesGrasas y Aceites
In this study, sour cherry kernel oil was converted to biodiesel by microwave-assisted transesterification. Evaluations were made of several variables, namely, reaction time (1, 2, 3, 4, and 5 min), microwave power (100, 200, 300, 400, and 500 W ...
M. T. Golmakani   +3 more
doaj   +1 more source

High‐Performance Bio‐Based Epoxy Vitrimers and Composites: Synergizing Robustness and Reprocessability via Fractional Free Volume Regulation

open access: yesAdvanced Science, EarlyView.
In this work, two bio‐based epoxy monomers were designed to tune the dynamic network of a rigid–flexible hybrid epoxy through free‐volume control, achieving a synergy among high free volume, high cross‐linking density, and segmental mobility while balancing strength and toughness.
Kai Dong, Di Zhao, Chengji Zhao
wiley   +1 more source

La transestérification hétérogène de l’huile de tournesol sous alumine : Production du biodiesel EEHV [PDF]

open access: yes, 2012
La transestérification d’huiles végétales est une réaction catalytique homogène et hétérogène, elle est constituée par trois étapes consécutives et réversibles .Après la dernière étape on obtient un mélange d’esters : le biodiesel.
Mesbahi, Dalila
core   +1 more source

Utilisation du glycérol en alimentation porcine

open access: yesINRAE Productions Animales, 2009
Le développement de l’agrochimie va mettre sur le marché des matières premières des coproduits qui pourront être utilisés en alimentation animale. Afin de pouvoir les valoriser en production animale, il est nécessaire de montrer la bonne efficacité des ...
J. MOUROT
doaj   +1 more source

Process intensification approach for design and optimization of biodiesel production from palm fatty acid distillate

open access: yesBiotechnology Reports, 2021
Design of the biodiesel production from palm fatty acid distillate (PFAD) using process intensification approach is studied in technical, economic and environmental view points.
Karittha Im-orb   +2 more
doaj   +1 more source

Procédé écologique de production d'esters éthanoliques par transestérification éthanolique en catalyse enzymatique [PDF]

open access: yes, 2016
Procédé de production d'esters éthanoliques par transestérification de triglycérides d'une huile végétale ou d'une graisse animale par l'éthanol, selon la réaction : triglycérides + éthanol (flèche horizontale à insérer) esters éthanoliques + glycérol ...
Moussavou, Rédéo Wilfried   +3 more
core  

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