Kinetics of asphaltenes conversion during hydrotreating of Maya crude

Fernando Trejo; Jorge Ancheyta

doi:10.1016/j.cattod.2005.08.005

Kinetics of asphaltenes conversion during hydrotreating of Maya crude

Fernando Trejo, Jorge Ancheyta

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

The kinetics of asphaltene conversion was studied during the hydrotreating of Maya heavy crude oil. Experimental tests were conducted in a pilot plant at the following reaction conditions: total pressure of 70-100 kg/cm², liquid hourly space-velocity (LHSV) of 0.33-1.5 h^-1, and reaction temperature of 380-420 °C at a constant hydrogen-to-oil ratio of 5000 ft³/bbl. A commercial NiMo/Al₂O₃ catalyst was used in all experiments. Asphaltenes were precipitated from Maya crude and from hydrotreated products in a Parr Batch Reactor at 25 kg/cm² and 60 °C with n-heptane as solvent. Asphaltene hydrocracking data were used to estimate reaction orders and activation energy using a power-law model, and the average absolute error between experimental and calculated concentrations of asphaltenes was found to be less than 5%.

Original language	English
Pages (from-to)	99-103
Number of pages	5
Journal	Catalysis Today
Volume	109
Issue number	1-4
DOIs	https://doi.org/10.1016/j.cattod.2005.08.005
State	Published - 30 Nov 2005
Externally published	Yes

Keywords

Asphaltenes hydrocracking
Heavy oil
Kinetics

Access to Document

10.1016/j.cattod.2005.08.005

Cite this

@article{9415575cbfcf4bc2a4baae84cb0ee864,

title = "Kinetics of asphaltenes conversion during hydrotreating of Maya crude",

abstract = "The kinetics of asphaltene conversion was studied during the hydrotreating of Maya heavy crude oil. Experimental tests were conducted in a pilot plant at the following reaction conditions: total pressure of 70-100 kg/cm2, liquid hourly space-velocity (LHSV) of 0.33-1.5 h-1, and reaction temperature of 380-420 °C at a constant hydrogen-to-oil ratio of 5000 ft3/bbl. A commercial NiMo/Al2O3 catalyst was used in all experiments. Asphaltenes were precipitated from Maya crude and from hydrotreated products in a Parr Batch Reactor at 25 kg/cm2 and 60 °C with n-heptane as solvent. Asphaltene hydrocracking data were used to estimate reaction orders and activation energy using a power-law model, and the average absolute error between experimental and calculated concentrations of asphaltenes was found to be less than 5%.",

keywords = "Asphaltenes hydrocracking, Heavy oil, Kinetics",

author = "Fernando Trejo and Jorge Ancheyta",

note = "Funding Information: The authors thank the Instituto Mexicano del Petr{\'o}leo for its financial support. F. Trejo also thanks the CONACyT and the UNAM for their financial support.",

year = "2005",

month = nov,

day = "30",

doi = "10.1016/j.cattod.2005.08.005",

language = "Ingl{\'e}s",

volume = "109",

pages = "99--103",

journal = "Catalysis Today",

issn = "0920-5861",

number = "1-4",

}

TY - JOUR

T1 - Kinetics of asphaltenes conversion during hydrotreating of Maya crude

AU - Trejo, Fernando

AU - Ancheyta, Jorge

N1 - Funding Information: The authors thank the Instituto Mexicano del Petróleo for its financial support. F. Trejo also thanks the CONACyT and the UNAM for their financial support.

PY - 2005/11/30

Y1 - 2005/11/30

N2 - The kinetics of asphaltene conversion was studied during the hydrotreating of Maya heavy crude oil. Experimental tests were conducted in a pilot plant at the following reaction conditions: total pressure of 70-100 kg/cm2, liquid hourly space-velocity (LHSV) of 0.33-1.5 h-1, and reaction temperature of 380-420 °C at a constant hydrogen-to-oil ratio of 5000 ft3/bbl. A commercial NiMo/Al2O3 catalyst was used in all experiments. Asphaltenes were precipitated from Maya crude and from hydrotreated products in a Parr Batch Reactor at 25 kg/cm2 and 60 °C with n-heptane as solvent. Asphaltene hydrocracking data were used to estimate reaction orders and activation energy using a power-law model, and the average absolute error between experimental and calculated concentrations of asphaltenes was found to be less than 5%.

AB - The kinetics of asphaltene conversion was studied during the hydrotreating of Maya heavy crude oil. Experimental tests were conducted in a pilot plant at the following reaction conditions: total pressure of 70-100 kg/cm2, liquid hourly space-velocity (LHSV) of 0.33-1.5 h-1, and reaction temperature of 380-420 °C at a constant hydrogen-to-oil ratio of 5000 ft3/bbl. A commercial NiMo/Al2O3 catalyst was used in all experiments. Asphaltenes were precipitated from Maya crude and from hydrotreated products in a Parr Batch Reactor at 25 kg/cm2 and 60 °C with n-heptane as solvent. Asphaltene hydrocracking data were used to estimate reaction orders and activation energy using a power-law model, and the average absolute error between experimental and calculated concentrations of asphaltenes was found to be less than 5%.

KW - Asphaltenes hydrocracking

KW - Heavy oil

KW - Kinetics

UR - http://www.scopus.com/inward/record.url?scp=27544493525&partnerID=8YFLogxK

U2 - 10.1016/j.cattod.2005.08.005

DO - 10.1016/j.cattod.2005.08.005

M3 - Artículo

SN - 0920-5861

VL - 109

SP - 99

EP - 103

JO - Catalysis Today

JF - Catalysis Today

IS - 1-4

ER -

Kinetics of asphaltenes conversion during hydrotreating of Maya crude

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this