Results 41 to 50 of about 42,970 (286)

Catalyst in Basic Oleochemicals [PDF]

open access: yes, 2007
Currently Indonesia is the world largest palm oil producer with production volume reaching 16 million tones per annum. The high crude oil and ethylene prices in the last 3 – 4 years contribute to the healthy demand growth for basic oleochemicals: fatty ...
Abun Lie   +11 more
core   +3 more sources

Penggunaan Ultrasonik untuk Transesterifikasi Minyak Goreng Bekas

open access: yesJurnal Rekayasa Kimia & Lingkungan, 2011
In this work, the ultrasound-assisted transesterification of used frying oil (UFO) was studied. A two-step pretreatment of degumming and esterification was conducted to prepare UFO as raw material for transesterification.
Muhammad Dani Supardan
doaj   +2 more sources

Tailored Stereo‐Configuration of Crosslinkable Polyester‐Based Solid Polymer Electrolytes for All‐Solid‐State and Binder‐Free Li Metal Batteries

open access: yesAdvanced Science, EarlyView.
Variations in polymer conformations of unsaturated poly(n‐alkyl esters) driven by monomer‐level stereochemistry directly govern Li+ solvation structures in polymer host matrices. The synergistic strategies of polymer conformation control, UV‐induced interchain crosslinking, and end‐group fluorination are implemented for engineering advanced solid ...
Hyun Jun Song   +11 more
wiley   +1 more source

Process Optimization for Ethyl Ester Production in Fixed Bed Reactor Using Calcium Oxide Impregnated Palm Shell Activated Carbon (CaO/PSAC) [PDF]

open access: yes, 2012
The continuous production of ethyl ester was studied by using a steady-state fixed bed reactor (FBR). Transesterification of palm stearin (PS) and waste cooking palm oil (WCPO) with ethanol in the presence of calcium oxide impregnated palm shell ...
M , Panapoy,   +3 more
core   +1 more source

Comparison of three methods for rendering plant fat transesterification

open access: yesResearch in Agricultural Engineering, 2013
Three most frequently used methods for fat transesterification were compared using rendering plant fat (RPF) as model. Acid-catalysed transesterification was found to be the most effective (conversion 90%) at optimum conditions (fat: methanol ratio 1:10,
A. Prošková   +3 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

Supercritical Methanol Transesterification for Simultaneous Biodiesel Production Based on Cir-ULIF-MABAC-TOPSIS Model with Hamacher Norms

open access: yesEnergy Nexus
Supercritical methanol transesterification is a well-established and efficient process that produces biodiesel by reacting methanol with triglycerides under extreme temperature and pressure conditions.
Hamza Zafar   +4 more
doaj   +1 more source

Influence of n-Hexane on in Situ Transesterification of Marine Macroalgae

open access: yesEnergies, 2012
The purpose of this work is to investigate the influence of n-hexane addition on in situ transesterification of a solid raw material for biodiesel production.
Angel Sánchez   +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

Investigation of engine performance and exhaust gas emissions by using bio-diesel in compression ignition engine and optimisation of bio-diesel production from feedstock by using response surface methodology [PDF]

open access: yes
Bio-diesel, derived from the transesterification of vegetable oils or animal fats with simple alcohols, has attracted more and more attention recently. As a cleaner burning diesel alternative, bio-diesel claims to have many attractive features including:
Abuhabaya, Abdullah
core   +3 more sources

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