Results 191 to 200 of about 164,870 (306)

Impact of Distillation Column Design on Potential for the Integration of Mechanical Vapor Recompression

open access: yesChemie Ingenieur Technik, EarlyView.
Mechanical vapor recompression integration in distillation is analyzed, focusing on feed preheating and column pressure drop. Binary methanol–water and benzene–toluene separations are studied to identify optimal designs, which are further assessed in a bioethanol vacuum distillation sequence regarding energetic, ecological, and economic performance ...
Thorben Hochhaus   +3 more
wiley   +1 more source

Integrated Selective Depolymerization and Downstream Processing for Mixed Polyester Waste, Part 1

open access: yesChemie Ingenieur Technik, EarlyView.
Chemical recycling of mixed plastics by hydrolysis generates dilute monomer mixtures requiring complex downstream purification. To overcome this challenge, upstream selectivity is targeted. Tailored reaction conditions enable cascaded depolymerization which is shown for a PLA/PET model system.
Fabian Roweda, Filip Latz, Andreas Jupke
wiley   +1 more source

Antireflux Surgery for Barrett's Esophagus: Where Do We Stand in Preventing Esophageal Adenocarcinoma? [PDF]

open access: yesAnn N Y Acad Sci
Kollmann D   +12 more
europepmc   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal   +3 more
wiley   +1 more source

Design and implementation of a 3D‐printed modular distillation tower for experimental teaching in chemical engineering

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Several authors have reported the disconnection between the skills, abilities, and attitudes of graduates from STEM careers with the current needs of the labour market. In science and engineering fields, research has found the need for interdisciplinary approaches that encourage meaningful learning.
Úrsula Manríquez‐Tolsá   +7 more
wiley   +1 more source

Diagnostic accuracy of gastric filling ultrasound combined with BMI for gastroesophageal reflux disease. [PDF]

open access: yesFront Med (Lausanne)
Tang F   +7 more
europepmc   +1 more source

Optimization of a reactor for biostimulant production with emphasis on the economic aspects of hydrolysis

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Biostimulants are increasingly used in agriculture to promote plant growth, improve stress tolerance, and support sustainable farming practices. One common method of production is chemical hydrolysis of protein‐rich waste, such as tannery by‐products, offering an economical and eco‐friendly alternative to conventional raw materials.
Karel Kolomazník   +3 more
wiley   +1 more source

Endovenous thermal ablation for healing venous ulcers and preventing recurrence. [PDF]

open access: yes, 2013
Carradice, D   +4 more
core   +1 more source

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque   +3 more
wiley   +1 more source

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