Results 131 to 140 of about 72,620 (314)
ABSTRACT This study demonstrates how a profitable, lean, and environmentally responsible e‐waste reverse logistics system can be designed using integrated Operations Research (OR) techniques. Addressing the growing urgency of responsible consumption (UN SDG 12) and the projected rise of the e‐waste sector to USD 137.60 billion by 2029, the research ...
Sheeba Pathak, Hajar Fatorachian
wiley +1 more source
Desenvolvimento de métodos para análise inorgânica de biodiesel, matérias-primas e co-produtos utilizando espectrometria atômica [PDF]
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.A concentração de metais e outros elementos no biodiesel, suas matérias-primas e co-produtos depende de vários ...
Chaves, Eduardo Sidinei
core
ABSTRACT Circular product design (CPD) is central to advancing the circular economy by enabling the narrowing, slowing, and closing of resource flows. Yet, its implementation remains persistently challenging for firms. Prior research has largely framed these challenges as discrete barriers, overlooking the structural contradictions embedded in CPD ...
Vanessa Robertson +2 more
wiley +1 more source
INVESTIGATION OF TRANSESTERIFICATION REACTION OF FRESH AND USED VEGETABLE OIL
Fresh and used palm and rapeseed oil transesterification reaction with methanol and sodium hydroxide as a catalyst has been investigated. The yield, density, poor point, flash point and kinematic viscosity of synthesized fatty acid methyl esters (FAME ...
Žukauskaitė, Ž. +5 more
core +1 more source
ABSTRACT The rapid growth of packaging waste has recently intensified the search for sustainable alternatives. Edible packaging, developed from biodegradable materials safe for consumption, represents a promising innovation that combines environmental responsibility with food preservation.
Donata Tania Vergura +2 more
wiley +1 more source
Preparation of Emulsified Fuel Composed of Used Vegetable Oil and Water. [PDF]
This paper studied preparation of a stable emulsified fuel composed of used vegetable oil and water. In the tested commercial surfactants, CRS-75 (Sakamoto Yakuhin Kogyo Co.) was found to be suitable for preparation of emulsion.
戸田, 清 +13 more
core
The combustion and the thermal-energetic behavior of an oil-fired condensing boiler [PDF]
The purpose of this Master’s Thesis is to analyze an oil-fired condensing boiler describing the aspects concerning the combustion, condensation latent heat recovery from the combustion products and the heat transfer phenomena occurring in the device ...
Cattarinussi, Cristian
core
During the glycerol dehydration over ZSM‐5 zeolite, the modification by metal promoters results in the suppression of the bicyclic and tricyclic aromatics over the modified ZSM‐5 zeolite catalysts. However, the issue of the fast deactivation still remains an apparent challenge, which requires more different perspectives to understand the deactivation ...
Yonghua Yu +7 more
wiley +1 more source
Bioinspired Design and Synthesis of Polyphenolic Star‐Like and Hyperbranched Polyester Models
Gallotannin‐inspired star‐like and hyperbranched aromatic polyesters were synthesized from D‐glucose and ABn‐type phenolic acid monomers, such as protocatechuic acid. This bioinspired approach afforded polyphenolic polymeric nanoparticles able to encapsulate hydrophobic dyes, opening new perspectives for biobased encapsulation and delivery systems ...
Guanfei Shen +4 more
wiley +1 more source
Transesterification vegetable oils using heterogeneous catalysts
El progresivo aumento en los precios del petróleo y el agotamiento de sus reservas ha motivado a la sociedad científica a pensar en combustibles alternativos y renovables como el biodiesel. La producción de biodiesel se lleva a cabo principalmente por transesterificación de triacilglicéridos (aceites vegetales y grasas animales) y un alcohol liviano en
Grey C. Castellar Ortega +2 more
openaire +1 more source

