Results 1 to 10 of about 56,571 (246)

Effects of Different Base Wine Volumes on Volatile Compound Profile of Distilled Merlot Wine Analyzed by Headspace Solid-Phase Microextraction Combined with Gas Chromatography-Mass Spectrometry [PDF]

open access: yesShipin Kexue, 2023
The effects of different base wine volumes (150, 200, and 250 L) during the distillation process on the volatile compounds of distilled wine made from Merlot grapes from the Jiaodong Peninsula were investigated in order to optimize the distillation ...
GUO Yayun, SHAO Xuedong, ZHANG Zhengwen, LI Bo, XUE Wei, SHI Hongmei
doaj   +1 more source

Novel multi–SO3H functionalized ionic liquids as highly efficient catalyst for synthesis of biodiesel

open access: yesGreen Energy & Environment, 2021
Biodiesel is an attractive alternative to fossil fuels due to the energy and environmental concerns. In this paper, seven different multi –SO3H functionalized ILs based on the low-cost less-substituted amines, which contained massive sites for ...
Meichen Li   +5 more
doaj   +1 more source

Process intensification by integration of distillation and vapor permeation or pervaporation - An academic and industrial perspective

open access: yesResults in Engineering, 2022
Since membrane separations, such as vapor permeation (VP) or pervaporation (PV), are not limited by vapor-liquid equilibrium, their coupling with distillation can exert a synergistic effect, overcome the thermodynamic limits of distillation, and improve ...
Shun Liu   +4 more
doaj   +1 more source

Thermodynamics fundamentals and energy efficiency for the separation and high-valued utilization of Fischer–Tropsch heavy oil

open access: yesInternational Journal of Coal Science & Technology, 2022
The development trend of Fischer–Tropsch (F–T) technology is to develop high value-added products. The separation of linear α-olefins with low cost is an effective method.
Zongchao Liu   +8 more
doaj   +1 more source

Molecular interaction mechanism in the separation of a binary azeotropic system by extractive distillation with ionic liquid

open access: yesGreen Energy & Environment, 2021
Ionic liquids (ILs) have shown excellent performance in the separation of binary azeotropes through extractive distillation [1]. But the role of the ionic liquid in azeotropic system is not well understood.
Hong Li   +7 more
doaj   +1 more source

Study of the Adsorption Behavior of Surfactants on Carbonate Surface by Experiment and Molecular Dynamics Simulation

open access: yesFrontiers in Chemistry, 2022
Surfactants adsorption onto carbonate reservoirs would cause surfactants concentrations decrease in surfactant flooding, which would decrease surfactant efficiency in practical applications of enhanced oil recovery (EOR) processes.
Jinjian Hou   +8 more
doaj   +1 more source

Machine learning-based ionic liquids design and process simulation for CO2 separation from flue gas

open access: yesGreen Energy & Environment, 2021
Rational design of ionic liquids (ILs), which is highly dependent on the accuracy of the model used, has always been crucial for CO2 separation from flue gas.
Kai Wang, Huijin Xu, Chen Yang, Ting Qiu
doaj   +1 more source

Application of the Chemical-Looping Concept for Azoetrope Separation

open access: yesEngineering, 2021
The need for the separation of azeotropic mixtures for the production of high-end chemicals and resource recovery has spurred significant research into the development of new separation methods in the chemical industry.
Xin Gao, Xueli Geng
doaj   +1 more source

Nitrogen Stable Isotope Determination in Soil Free Amino Acid-N by PreCon-IRMS System [PDF]

open access: yesZhipu Xuebao, 2022
The majority of soil nitrogen is closely associated with soil organic matter, the cleavage of high molecular weight organic N such as protein to smaller soluble compounds (e.g amino acids) is a key step in the terrestrial N cycle.
HE Zhen   +7 more
doaj   +1 more source

The Advances in the Special Microwave Effects of the Heterogeneous Catalytic Reactions

open access: yesFrontiers in Chemistry, 2020
In the present, microwave field has been widely used in chemical processes as an important means of intensification. The heterogeneous catalysts coupling with microwave has been shown to have many advantages, such as high catalytic performance and ...
Hong Li   +5 more
doaj   +1 more source

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