Results 51 to 60 of about 78,621 (327)

Numerical simulation of convection heat transfer of supercritical carbon dioxide in horizontal straight tube

open access: yesJournal of Hebei University of Science and Technology, 2019
In order to enhance the heat transfer performance of CO2 heat pump, the heat transfer performance of supercritical carbon dioxide in horizontal straight tube is conducted based on Fluent numerical simulation method. Cooling heat transfer of supercritical
Haiting CUI, Siwen LIU, Shaozheng WANG
doaj   +1 more source

Continuous Formation of Limonene Carbonates in Supercritical Carbon Dioxide

open access: yesOrganic Process Research & Development, 2022
We present a continuous flow method for the conversion of bioderived limonene oxide and limonene dioxide to limonene carbonates using carbon dioxide in its supercritical state as a reagent and sole solvent. Various ammonium- and imidazolium-based ionic liquids were initially investigated in batch mode.
Mikšovsky, Philipp   +5 more
openaire   +2 more sources

Journal Staff [PDF]

open access: yes, 1959
Water and supercritical carbon dioxide have different wetting angles to a glass surface, where water has a lower angle. In a microfluidic channel, the lower wetting angle draws the water to surround the supercritical carbon dioxide and the supercritical ...
Rogeman, Niklas
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Organic syntheses employing supercritical carbon dioxide as a reaction solvent [PDF]

open access: yes, 1991
Chemical reactions are readily carried out using supercritical carbon dioxide as the reaction medium. Supercritical carbon dioxide is of special value as a reaction medium in reactions for synthesizing polypeptides, for sequencing polypeptides, or for ...
Barstow, Leon E.   +2 more
core   +1 more source

Advances in Micro/Nanofiber‐Based Porous Materials for High‐Performance Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Micro/nanofiber porous materials have engendered great interest in the thermal insulation field. Herein, the structural designs, fabrication techniques, and applications of the micro/nanofiber thermal insulation materials are systematically summarized.
Xiaobao Gong   +5 more
wiley   +1 more source

Mathematical modeling and simulation of gel drying with supercritical carbon dioxide [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Mathematical models of alumina/silica gel supercritical drying with carbon dioxide were studied using supercritical drying experimental data. An alumina/silica gel with zinc chloride was synthesized and dried with superciritical carbon dioxide, and its ...
ALEKSANDAR ORLOVIC   +2 more
doaj   +3 more sources

Subcritical Water Hydrolysis of Sugarcane Bagasse and Coconut Husk Assisted by Carbon Dioxide

open access: yesChemical Engineering Transactions, 2014
The objective of this work was to evaluate the effect of operation conditions on sub/supercritical waterhydrolysis (SWH) of sugarcane bagasse and coconut husk adding carbon dioxide (CO2) as acid catalyst.
T. Forster-Carneiro   +4 more
doaj   +1 more source

Research on Closed Cycle Pipe Blowing Technology of 5 MW Supercritical Carbon Dioxide Unit Boiler

open access: yes发电技术, 2023
In order to explore the steam pipe blowing process suitable for new supercritical carbon dioxide boiler, taking a 5 MW supercritical carbon dioxide circulating power generation test unit as the research object, the characteristics of main and auxiliary ...
WANG Lin
doaj   +1 more source

Enzymatic Interesterification in Supercritical Carbon Dioxide

open access: yesAgricultural and Biological Chemistry, 1988
An enzymatic reaction with supercritical carbon dioxide (SCCO2) as the reaction medium was investigated. Lipase could catalyze the batch type reaction of hydrolysis and interesterification (acidolysis) in SCCO2 at 50°C and 29.4 MPa. The time course of interesterification was influenced by the water content as well as by the kind of reaction medium. The
Young Min CHI   +2 more
openaire   +2 more sources

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