Effect of carbon dioxide environment on the thermal behavior of sugarcane pyrolysis oil

2021 ◽  
Vol 154 ◽  
pp. 105000
Author(s):  
Javier Ordonez-Loza ◽  
Carlos Valdes ◽  
Farid Chejne ◽  
Manuel Garcia Perez ◽  
Wen Zhang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Thermal Behavior ◽  
Pyrolysis Oil

scholarly journals Supercritical Carbonation of Lightweight Aggregate Containing Mortar: Thermal Behavior

2014 ◽  
Vol 600 ◽  
pp. 345-356
Author(s):  
Marçal Rosas Florentino Lima Filho ◽  
Sandro Marden Torres ◽  
Leon Black ◽  
Andressa de Araújo Porto Vieira ◽  
Rodinei Medeiros Gomes ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Thermal Conductivity ◽  
Supercritical Carbon Dioxide ◽  
Thermal Behavior ◽  
Lightweight Concrete ◽  
Lightweight Aggregate ◽  
Mix Design ◽  
Lightweight Aggregates ◽  
Cylindrical Samples ◽  
Potential Use

Lightweight concrete shows good insulation properties, depending on several parameters such as mix design and aggregate type. Perlite aggregate is one of the most effective aggregates for such a purpose, mainly because of its low thermal conductivity (0.04 W/m.°C), but is not available globally. This paper explores the potential use of another source of thermal efficient aggregate, vermiculite (0.058 W/m.°C) which is available in Brazil and other countries where perlite is absent. Cylindrical samples were cast by using two lightweight aggregates, perlite and vermiculite, and treated with supercritical carbon dioxide. Supercritical carbonation (SCC) of concrete can improve mechanical, thermal and durability features. In this paper, the effect of SCC on the thermal behavior of lightweight mortars was investigated with regards to physical and microstructure features and thermal behavior due to cooling.

scholarly journals Co-pyrolysis of rubberwood sawdust (RWS) and polypropylene (PP) in a fixed bed pyrolyzer

2019 ◽  
Vol 13 (1) ◽  
pp. 4636-4647 ◽  
Author(s):  
N. I. Izzatie ◽  
M. H. Basha ◽  
Y. Uemura ◽  
M. S. M. Hashim ◽  
M. Afendi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Water Content ◽  
Fixed Bed ◽  
Oil Yield ◽  
Pyrolysis Oil ◽  
Pyrolysis Process ◽  
Increasing Trend ◽  
Different Temperatures

Co-pyrolysis of rubberwood sawdust (RWS) waste and polypropylene (PP) was carried out at different temperatures (450,500,550, and 600°C) with biomass to plastics ratio 1:1 by using fixed bed drop-type pyrolyzer. The yield of pyrolysis oil has an increasing trend as the temperature increased from 450°C to 550°C. However, the pyrolysis oil yield dropped at a temperature of 600°C. Co-pyrolysis of RWS and PP generated maximum pyrolysis oil with 36.47 wt.% at 550°C. The result is compared with the pyrolysis of RWS only without plastics, with the same feedstock, and the maximum pyrolysis oil yield obtained was 33.3 wt.%. The water content in pyrolysis oil of co-pyrolysis RWS with PP is lower than RWS only with 54.2 wt.% and 62 wt.% respectively. Hydrocarbons, acyclic olefin, alkyl, and aromatic groups are the major compound in the pyrolysis oil from the co-pyrolysis process. Carbon monoxide (52.2 vol.%) and carbon dioxide (38.2 vol.%) are the major gas components.

Extraction of palm kernel shell derived pyrolysis oil by supercritical carbon dioxide: Evaluation and modeling of phenol solubility

2018 ◽  
Vol 116 ◽  
pp. 106-112 ◽  
Author(s):  
Yi Herng Chan ◽  
Suzana Yusup ◽  
Armando T. Quitain ◽  
Yee Ho Chai ◽  
Yoshimitsu Uemura ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Palm Kernel ◽  
Pyrolysis Oil ◽  
Palm Kernel Shell ◽  
Supercritical Carbon

scholarly journals Inhibiting effect of CO2 on the oxidative combustion thermodynamics of coal

RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 41126-41134 ◽  
Author(s):  
Li-Feng Ren ◽  
Qing-Wei Li ◽  
Jun Deng ◽  
Xiao Yang ◽  
Li Ma ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Thermal Analysis ◽  
Thermal Behavior ◽  
Oxygen Concentration ◽  
Coal Oxidation ◽  
Inhibiting Effect ◽  
Analysis Experiment ◽  
Thermal Analysis Experiment

The effect of carbon dioxide and oxygen concentration on thermal behavior of coal oxidation and combustion of coal were investigated using an STA449F3 thermal analysis experiment.

Electron Cytochemical Study of Carbon Dioxide Laser Effect on Rhesus Monkey Cornea

1974 ◽  
Vol 32 ◽  
pp. 224-225
Author(s):  
K. C. Tsou ◽  
J. Morris ◽  
P. Shawaluk ◽  
B. Stuck ◽  
E. Beatrice
Keyword(s):  
Carbon Dioxide ◽  
Electron Microscope ◽  
Rhesus Monkey ◽  
Carbon Dioxide Laser ◽  
Cytochemical Study ◽  
Laser Effect

While much is known regarding the effect of lasers on the retina, little study has been done on the effect of lasers on cornea, because of the limitation of the size of the material. Using a combination of electron microscope and several newly developed cytochemical methods, the effect of laser can now be studied on eye for the purpose of correlating functional and morphological damage. The present paper illustrates such study with CO2 laser on Rhesus monkey.

The Critical Point Drying Method Applied to Scanning Electron Microscopy of L-929 Cells

1970 ◽  
Vol 28 ◽  
pp. 278-279
Author(s):  
Charles TurnbiLL ◽  
Delbert E. Philpott
Keyword(s):  
Electron Microscopy ◽  
Carbon Dioxide ◽  
Surface Tension ◽  
Critical Point ◽  
Freeze Drying ◽  
Attractive Alternative ◽  
Crystal Formation ◽  
Critical Point Drying ◽  
Time Required ◽  
Scanning Electron

The advent of the scanning electron microscope (SCEM) has renewed interest in preparing specimens by avoiding the forces of surface tension. The present method of freeze drying by Boyde and Barger (1969) and Small and Marszalek (1969) does prevent surface tension but ice crystal formation and time required for pumping out the specimen to dryness has discouraged us. We believe an attractive alternative to freeze drying is the critical point method originated by Anderson (1951; for electron microscopy. He avoided surface tension effects during drying by first exchanging the specimen water with alcohol, amy L acetate and then with carbon dioxide. He then selected a specific temperature (36.5°C) and pressure (72 Atm.) at which carbon dioxide would pass from the liquid to the gaseous phase without the effect of surface tension This combination of temperature and, pressure is known as the "critical point" of the Liquid.

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