Physical and Chemical Properties and Accelerated Aging Test of Bio-oil Produced from in Situ Catalytic Pyrolysis in a Bench-Scale Fluidized-Bed Reactor

2015 ◽  
Vol 29 (2) ◽  
pp. 841-848 ◽  
Author(s):  
Ravishankar Mahadevan ◽  
Rajdeep Shakya ◽  
Sneha Neupane ◽  
Sushil Adhikari
Keyword(s):  
Catalytic Pyrolysis ◽  
Chemical Properties ◽  
Accelerated Aging ◽  
Physical And Chemical Properties ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Bio Oil ◽  
Physical And Chemical ◽  
And Chemical Properties

scholarly journals In-situ Detection Method for Microplastics in Water by Polarized Light Scattering

2021 ◽  
Vol 8 ◽  
Author(s):  
Tong Liu ◽  
Shijun Yu ◽  
Xiaoshan Zhu ◽  
Ran Liao ◽  
Zepeng Zhuo ◽  
...  
Keyword(s):  
Light Scattering ◽  
Scattered Light ◽  
Polarized Light ◽  
Chemical Properties ◽  
Future Application ◽  
Physical And Chemical Properties ◽  
The Individual ◽  
Physical And Chemical ◽  
And Chemical Properties

Microplastics (MPs) have become the widespread contaminants, which raises concerns on their ecological hazards. In-situ detection of MP in water bodies is essential for clear assessment of the ecological risks of MPs. The present study proposes a method based on polarized light scattering which measures the polarization parameters of the scattered light at 120° to detect MP in water. This method takes the advantage of in-situ measurement of the individual particles and the experimental setup in principle is used. By use of the measured polarization parameters equipped by machine learning, the standard polystyrene (PS) spheres, natural water sample, and lab-cultured microalgae are explicitly discriminated, and MP with different physical and chemical properties can be differentiated. It can also characterize the weathering of different MP and identify the specific type from multiple types of MP. This study explores the capability of the proposed method to detect the physical and chemical properties, weathering state and concentration of MP in water which promises the future application in water quality sensing and monitoring.

A soil toposequence on bunya phyllite in Brisbane

Soil Research ◽  
1981 ◽  
Vol 19 (1) ◽  
pp. 1
Author(s):  
AJ Koppi
Keyword(s):  
Chemical Properties ◽  
Parent Material ◽  
Physical And Chemical Properties ◽  
Genetic Unit ◽  
Dioctahedral Mica ◽  
Physical And Chemical ◽  
In Situ Weathering ◽  
And Chemical Properties

A common toposequence on Bunya Phyllite in south-east Queensland was studied in detail at a representative site. Four sample profiles on the slope are described, and some physical and chemical properties are given. The clay minerals, derived from the weathering of the quartz-sericite-chlorite phyllite, comprise dioctahedral mica, dioctahedral vermiculite, an interstratification of these minerals, and kaolin. Properties are related to the slope; and the clay-rich horizon of the middle and lower slopes is considered to be formed mostly by in situ weathering. The classification of the genetic unit given by the slope and parent material is discussed.

scholarly journals Temperature reversible synergistic formation of cerium oxyhydride and Au hydride: a combined XAS and XPDF study

2020 ◽  
Vol 22 (34) ◽  
pp. 18882-18890
Author(s):  
Adam H. Clark ◽  
Nadia Acerbi ◽  
Philip A. Chater ◽  
Shusaku Hayama ◽  
Paul Collier ◽  
...  
Keyword(s):  
Fluorescence Detection ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Au Catalyst ◽  
Total Scattering ◽  
X Ray ◽  
Physical And Chemical ◽  
X Ray Absorption ◽  
And Chemical Properties

In situ studies on the physical and chemical properties of the interaction with hydrogen with a ceria coated alumina supported Au catalyst using fluorescence detection X-ray absorption near edge spectroscopy and X-ray total scattering.

The Aging Characteristics of Composite Insulators under Salt Fog Conditions

2014 ◽  
Vol 496-500 ◽  
pp. 231-237 ◽  
Author(s):  
Xiao Chun Chen ◽  
Min Cong Zheng ◽  
Jian Hua Li
Keyword(s):  
Ftir Spectroscopy ◽  
Chemical Properties ◽  
Accelerated Aging ◽  
Physical And Chemical Properties ◽  
Filling Materials ◽  
Aging Properties ◽  
Before And After ◽  
Physical And Chemical ◽  
Salt Fog ◽  
And Chemical Properties

The accelerated aging tests under salt fog conditions were carried out on two types of composite insulators in order to evaluate their anti-aging properties. FTIR spectroscopy, hydrophobicity, and hardness measurements were taken to characterize insulator housings' physical and chemical properties before and after aging. It was found that the aging characteristics were highly dependent on housing profile, aging time, and filling materials.

Electrical, Optical and Ionic Probe inside Transmission Electron Microscope

2013 ◽  
Vol 1525 ◽  
Author(s):  
Xuedong Bai ◽  
Zhi Xu ◽  
Peng Gao ◽  
Kaihui Liu ◽  
Wenlong Wang ◽  
...  
Keyword(s):  
Electrical Transport ◽  
Chemical Properties ◽  
Atomic Scale ◽  
In Situ Tem ◽  
Physical And Chemical Properties ◽  
Transmission Electron ◽  
Tem Method ◽  
Physical And Chemical ◽  
And Chemical Properties

ABSTRACTIn-situ transmission electron microscopy (TEM) method is powerful in a way that it can directly correlate the atomic-scale structure with physical and chemical properties. We will report on the construction and applications of the homemade in-situ TEM electrical and optical holders. Electrical transport of carbon nanotubes and photoconducting response on bending of individual ZnO nanowires have been studied inside TEM. Oxygen vacancy electromigration and its induced resistance switching effect have been probed in CeO2 films.

A Comparative Analysis of Physical and Chemical Properties of Biochars and Bio-Oils Obtained from Pyrolytic Process of Mesocarp Fibre and Empty Fruit Bunch

2017 ◽  
Vol 268 ◽  
pp. 387-392
Author(s):  
Nurhayati Abdullah ◽  
Aminu Aliyu Safana ◽  
Fauziah Sulaiman ◽  
Ibrahim Inuwa Abdullahi
Keyword(s):  
Chemical Properties ◽  
Calorific Value ◽  
Raw Material ◽  
High Yield ◽  
Physical And Chemical Properties ◽  
Empty Fruit Bunch ◽  
Healthy Environment ◽  
Bio Oil ◽  
Physical And Chemical ◽  
And Chemical Properties

The fundamental objectives of this study is to analyzed and compare the physical and chemical properties of pyrolysis products (biochar and bio-oil) derived from two oil palm wastes. Empty fruit bunch (EFB) and mesocarp fibre (MF) were subjected to pyrolysis at a temperature of 400 °C for 2 hours holding time at 10 °C/min heating rate and with nitrogen flow rate of 2 L/min. The result obtained from raw material showed that MF contains a high quantity of hemicellulose and lignin which led to a high yield of bio-oil and biochar respectively, whereby, EFB contained a high content of cellulose. The high content of cellulose in EFB resulted in a high yield of gas compared to fibre. The higher heating value (HHV) of biochar and bio-oil were found to be 28.76 and 19.45 MJkg-1 for MF and, 24.33 and 19.98 MJkg-1 for EFB, respectively. Comparatively, the biochar obtained from MF material has high HHV than EFB material. However, all the biochars derived can be used for briquettes production as coal replacement in the future due to significantly high calorific value as compared to Malaysian sub-bituminous coal which has 24.6 MJkg-1. Furthermore, pyrolysis of any wastes encourages proper sanitation and lead to a healthy environment. It can also serve as a potential solution to the energy crisis in developing countries, Nigeria in particular if bio-oil can be improved to power electricity generation facilities in replacement to diesel.

scholarly journals Monitoring Electrochemical Reactions in Situ with Low Field NMR: A Mini-Review

2019 ◽  
Vol 9 (3) ◽  
pp. 498 ◽  
Author(s):  
Bruna Gomes ◽  
Carlos Lobo ◽  
Luiz Colnago
Keyword(s):  
Time Domain ◽  
Chemical Properties ◽  
Electrochemical Reactions ◽  
Electrochemical Studies ◽  
Physical And Chemical Properties ◽  
Low Field ◽  
Low Field Nmr ◽  
Physical And Chemical ◽  
And Chemical Properties

The number of applications of time domain NMR using low-field spectrometers in research and development has been steadily increasing in recent years with applications ranging from quality control of industrial products to the study of physical and chemical properties of a wide array of solid and liquid samples to, most recently, electrochemical studies. In this mini-review we summarize the progress that has been achieved in the coupling between time domain NMR (using low-field spectrometers) and electrochemistry and how the challenges that this coupling poses have been overcome over the years. We also highlight the effect that the static magnetic field of the NMR spectrometer has on the electrochemical systems.

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