Energy & Fuels, volume 32, issue 2, pages 1132-1138
Pyrolysis kinetics of heavy oil asphaltenes under steam atmosphere at different pressures
1
2
Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas Norte
152, Col. San Bartolo Atepehuacan, México
City 07730, México
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Publication type: Journal Article
Publication date: 2018-01-16
Journal:
Energy & Fuels
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 5.3
ISSN: 08870624, 15205029
General Chemical Engineering
Energy Engineering and Power Technology
Fuel Technology
Abstract
Thermogravimetric analysis was used to study the pressure effect on the activation energy during asphaltene gasification. The experiments were carried out under steam atmosphere at different pressures (1–80 bar) and temperatures (100–900 °C). The measured values of the total mass loss of asphaltenes are pressure dependent. They increase with rising pressure. Kinetic parameters were determined using a first-order kinetic model and integral method with thermogravimetric analysis data. The activation energy was found to vary from 189.6 to 130.4 kJ/mol and frequency factor from 4.1 × 1010 to 1.2 × 106 min–1. A decrease of both parameters was observed with an increasing pressure. Coke produced during the gasification is obviously characterized by the bigger pore size and weaker mechanical strength as the pressure increases from 1 to 80 bar. The structure of the produced coke becomes more crumbly with raising pressure. The formation of spherical carbon particles with a radius of around 5 μm was observed at high...
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Boytsova A., Kondrasheva N. K., Ancheyta J. Pyrolysis kinetics of heavy oil asphaltenes under steam atmosphere at different pressures // Energy & Fuels. 2018. Vol. 32. No. 2. pp. 1132-1138.
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Boytsova A., Kondrasheva N. K., Ancheyta J. Pyrolysis kinetics of heavy oil asphaltenes under steam atmosphere at different pressures // Energy & Fuels. 2018. Vol. 32. No. 2. pp. 1132-1138.
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TY - JOUR
DO - 10.1021/acs.energyfuels.7b02716
UR - https://doi.org/10.1021%2Facs.energyfuels.7b02716
TI - Pyrolysis kinetics of heavy oil asphaltenes under steam atmosphere at different pressures
T2 - Energy & Fuels
AU - Boytsova, Alexandra
AU - Ancheyta, J.
AU - Kondrasheva, Natalia K
PY - 2018
DA - 2018/01/16 00:00:00
PB - American Chemical Society (ACS)
SP - 1132-1138
IS - 2
VL - 32
SN - 0887-0624
SN - 1520-5029
ER -
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@article{2018_Boytsova,
author = {Alexandra Boytsova and J. Ancheyta and Natalia K Kondrasheva},
title = {Pyrolysis kinetics of heavy oil asphaltenes under steam atmosphere at different pressures},
journal = {Energy & Fuels},
year = {2018},
volume = {32},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021%2Facs.energyfuels.7b02716},
number = {2},
pages = {1132--1138},
doi = {10.1021/acs.energyfuels.7b02716}
}
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Boytsova, Alexandra, et al. “Pyrolysis kinetics of heavy oil asphaltenes under steam atmosphere at different pressures.” Energy & Fuels, vol. 32, no. 2, Jan. 2018, pp. 1132-1138. https://doi.org/10.1021%2Facs.energyfuels.7b02716.