Results 11 to 20 of about 134,406 (313)

Chapter-3. Catalytic In-Situ Upgrading of Heavy and Extra-Heavy Crude Oils. [PDF]

, 2023
For the entire production life of a reservoir, oil recovery operations can be divided into three phases: primary, secondary, and tertiary. Enhanced oil recovery (EOR) techniques generally include both the secondary and tertiary methods, and it is not ...
Kök, Mustafa Verşan
core   +1 more source

Electrochemical synthesis of Ni doped carbon quantum dots for simultaneous fluorometric determination of Fe3+ and Cu2+ ion facilely

Green Chemical Engineering, 2023
A novel Ni doped carbon quantum dots (Ni-CQDs) fluorescence probe was synthesized by facile electrolysis of monoatomic Ni dispersed porous carbon (Ni–N–C).
Siyuan Sun, Yang Sun, Fan Yang, Sai Che, Xiaoyun Zhang, Ge Zhang, Yongfeng Li   +6 more
doaj   +1 more source

The Recycling of Waste Per-Fluorinated Sulfonic Acid for Reformulation and Membrane Application in Iron-Chromium Redox Flow Batteries

Energies, 2022
Iron–chromium redox flow batteries (ICRFB) possess the advantage of low raw material cost, intrinsic safety, long charge–discharge cycle life, good life-cycle economy, and environmental friendliness, which has attracted attention from academia and ...
Quan Xu, Xinyi Chen, Siyang Wang, Chao Guo, Yingchun Niu, Runguo Zuo, Ziji Yang, Yang Zhou, Chunming Xu   +8 more
doaj   +1 more source

Heavy Silicone Oil as an Endotamponade in Recurrent or Complicated Retinal Detachment and Macular Hole [PDF]

, 2022
OBJECTIVES: To evaluate the efficacy and safety of heavy silicone oil as an endotamponade in patients with recurrent or complicated retinal detachment and macular hole.
Kapran, Ziya, Ziya Kapran, Rengin Aslıhan Kurt, Kurt, Rengin Aslıhan   +3 more
core   +1 more source

Preparation of Polyamidoamine Dendrimer Modified Magnetic Nanoparticles and Its Application for Reliable Measurement of Sudan Red Contaminants in Natural Waters at Parts-Per-Billion Levels

Frontiers in Chemistry, 2021
The health threat from Sudan red dyes has been the subject of much attention in recent years and is crucial to design and establish reliable measurement technologies.
Yalin Wu, Yalin Wu, Huahua Bai, Qingxiang Zhou, Shuangying Li, Yayang Tong, Jinghan Guo, Boyao Zhou, Zhi Li, Yali Zhan, Menghua Liu, Yanhui Li, Tongxu Qu   +12 more
doaj   +1 more source

Effects of the addition of coal tar pitch-based mesocarbon microbeads on the preparation of mesophase pitch [PDF]

E3S Web of Conferences, 2021
Mesophase pitch was prepared by co-carbonization of the hydrocracking tail oil (HCTO) and coal tar pitch-based mesocarbon microbeads (MCMB). The effects of the addition amount of coal tar-based MCMBs on the C/H atomic ratio, softening point, carbon ...
Gong Xin, Liu Xiaodong, Liu Dong
doaj   +1 more source

Ethylene Separation via Hydrate Formation in W/O Emulsions

Energies, 2015
An hybrid absorption-hydration method was adopted to recover C2H4 from C2H4/CH4 binary gas mixtures and the hydrate formation conditions of C2H4/CH4 mixtures was studied experimentally in diesel in water (w/o) emulsions. Span 20 at a concentration of 1.0
Yong Pan, Huang Liu, Zhi Li, Bei Liu, Qinglan Ma, Guangjin Chen, Changyu Sun, Lanying Yang, Xueteng Gao   +8 more
doaj   +1 more source

Heavy Silicone Oil and Intraocular Inflammation [PDF]

BioMed Research International, 2014
In the past two decades, many advances have been made in vitrectomy instrumentation, surgical techniques, and the use of different tamponade agents. These agents serve close retinal breaks, confine eventual retinal redetachment, and prevent proliferative vitreoretinopathy (PVR). Long-acting gases and silicone oil are effective internal tamponade agents;
Francesco Morescalchi, Ciro Costagliola, Sarah Duse, Elena Gambicorti, Barbara Parolini, Barbara Arcidiacono, Mario R. Romano, Francesco Semeraro   +7 more
openaire   +5 more sources

Optimization of Molecular Composition Distribution of Slurry Oil by Supercritical Fluid Extraction to Improve the Structure and Performance of Mesophase Pitch

Energies, 2022
The composition distribution of slurry oil has a significant impact on the structure and performance of the mesophase. In this study, supercritical fluid extraction oil (SFEO) and extraction components were extracted from two slurry oils (SLOs) using the
Xiaoyu Dai, Yuanen Ma, Linzhou Zhang, Zhiming Xu, Xuewen Sun, Suoqi Zhao   +5 more
doaj   +1 more source

Modelling the costs of non-conventional oil: A case study of Canadian bitumen [PDF]

, 2008
International audienceHigh crude oil prices, uncertainties about the consequences of climate change and the eventual decline of conventional oil production raise the issue of alternative fuels, such as non-conventional oil and biofuels.
Hope, Chris, Chris Hope, Méjean, Aurélie, Aurélie Méjean   +3 more
core   +2 more sources