Results 251 to 260 of about 416,241 (350)

The Effect of Demineralization on Coal Functional Group Pyrolysis: Rank‐Dependent Dual Mechanisms of Structural Reorganization and Mineral Catalysis

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal pyrolysis, as a key thermochemical conversion process, is significantly influenced by inherent minerals, yet their role across different coal ranks remains inadequately understood. This study investigates the effect of acid‐washing (demineralization) on the thermal decomposition of six functional groups (aliphatic C–H, aromatic C–H/C=C, C=
Zhiyuan Niu   +4 more
wiley   +1 more source

Enhanced Rheological and Filtration Performance of Drilling Fluids Using Fe3O4/Saponin/Cu(II) Nanocomposites: Synthesis, Characterization, and Application

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Drilling fluids used in high‐performance well operations often struggle to maintain rheological stability, colloidal dispersion, and filtration control under harsh downhole conditions. This study engineered a multifunctional Fe3O4@Saponin/Cu(II) nanocomposite to address these challenges.
Kassem Al Attabi   +9 more
wiley   +1 more source

Preparation and Performance Evaluation of a Self‐Generated Particle Plugging Agent Based on Thermosetting Resin

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A thermosetting in situ curing resin microsphere system has been developed. It has controllable phase transition time and particle size. This system addresses the current challenges of low strength, shear susceptibility, and short phase transition time in polymer microsphere blockers and thermoplastic particle blockers.
Baolei Jiao   +5 more
wiley   +1 more source

Construction of Lean Coal Molecular Structure Model Based on Spectroscopic Characterization

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The chemical structure of coal exerts a profound influence on its properties and utilization pathways. A comprehensive analysis of coal's molecular structure is crucial for mitigating environmental pollution arising from coal combustion and improving the efficiency of coal utilization.
Song Liu   +5 more
wiley   +1 more source

Effect of Gamma Radiation on the Chemical Structure and Physical Properties of Poly(butylene adipate-co-terephthalate). [PDF]

open access: yesPolymers (Basel)
Marcos Rios D   +5 more
europepmc   +1 more source

From Agri‐Waste to Heavy‐Duty Packaging: Upcycling Tomato Processing By‐Products Into Sustainable Bio‐Composite Polymeric Films

open access: yesJournal of Applied Polymer Science, EarlyView.
From tomato sauce waste to sustainable packaging: tomato processing by‐products are upcycled as fillers in biodegradable polymers and processed through blown film extrusion to fabricate heavy‐duty bags, enabling a circular and value‐added use of agri‐food residues.
Francesco Paolo La Mantia   +4 more
wiley   +1 more source

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