Results 231 to 240 of about 131,191 (309)

ZnO‐Functionalized Silicon Carbide Ceramic Membranes for Removing Impurities From Biodiesel

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 3, May 2026.
Silicon carbide (SiC) ceramic membranes functionalized with zinc oxide (ZnO) were assessed for biodiesel purification through crossflow filtration. The ZnO–SiC membranes effectively retained metallic impurities, especially calcium, sodium, and phosphorus, achieving levels that meet biodiesel quality standards.
Arthur Santos Romero   +6 more
wiley   +1 more source

Mechanistic Kinetic Modeling of the Selective Methanol Oxidation Based on Christiansen Mathematics

open access: yesChemie Ingenieur Technik, Volume 98, Issue 5, Page 181-190, May 2026.
The article provides a mechanistic description of reaction rates for the selective methanol oxidation to green oxygenates. For this, a detailed reaction mechanism is provided based on catalytic cycles. The catalytic cycles are translated into mechanistic rate expressions using Christiansen mathematics.
Thomas Friederici   +3 more
wiley   +1 more source

Synthesis of Hydrocarbon Fuels From Dimethyl Ether Through Co‐Oligomerization of Olefins

open access: yesChemie Ingenieur Technik, Volume 98, Issue 5, Page 262-270, May 2026.
This work investigates the impact of higher olefins and typical impurities from a preceding Dimethyl ether‐to‐Olefins (DtO) process on olefin oligomerization for sustainable fuel production. Several key properties of the kerosene fraction comply with the ASTM D7566 22a standard for sustainable aviation fuels, whereas some important properties of the ...
Marc Pfennings   +5 more
wiley   +1 more source

Lubrication and viscosity of the bioethanol-biodiesel-bioethanol blends [PDF]

open access: yes, 2007
Emőd, István   +2 more
core  

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 5, Page 2206-2224, May 2026.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa   +4 more
wiley   +1 more source

Critical Discourse Analysis in Corporate Reports: Legitimation Strategies in the Context of Environmental Controversies

open access: yesCorporate Social Responsibility and Environmental Management, Volume 33, Issue 3, Page 3563-3581, May 2026.
ABSTRACT This study examines the use of environmental disclosure as a strategic tool to manage legitimacy crises in a mining company, adopting critical discourse analysis (CDA) as the main methodology. Focusing on a case of environmental disaster, this research reveals how corporate narratives can be manipulated to minimize responsibility and reinforce
Renata Luiza de Castilho Rossoni   +1 more
wiley   +1 more source

Solar Energy in 2025: Global Deployment, Cost Trends, and the Role of Energy Storage in Enabling a Resilient Smart Energy Infrastructure

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
This paper explores global solar PV deployment, cost trends, and grid integration challenges in 2025. It examines the role of energy storage in firming solar output and supporting electric vehicle (EV) growth, alongside policy shifts, investment flows, and technological innovations.
Ehsan Rezaee, S. Ravi P. Silva
wiley   +1 more source

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