Effects of catalyst properties on asphaltenes composition during hydrotreating of heavy oils

J. Ancheyta; G. Centeno; F. Trejo

doi:10.1081/LFT-120028534

Effects of catalyst properties on asphaltenes composition during hydrotreating of heavy oils

J. Ancheyta, G. Centeno, F. Trejo

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

14 Scopus citations

Abstract

Three NiMo commercial catalysts were used for carrying out hydrotreating (HDT) experiments in a high-pressure pilot plant. Maya crude oil was employed as HDT feed. All hydrotreated products and their corresponding precipitated asphaltenes fractions were characterized by elemental analysis and metals contents. Extraction of asphaltenes was carried out according to the method described in ASTM D-3279. It was observed from our characterization results that while nitrogen and metals content in asphaltenes increase sulfur decrease as the reaction temperature is increased. This different behavior was attributed to the localization of each heteroatom in the asphaltene molecule. Pore size of catalysts showed the major influence on hydrotreated product asphaltenes composition.

Original language	English
Pages (from-to)	219-225
Number of pages	7
Journal	Petroleum Science and Technology
Volume	22
Issue number	1-2
DOIs	https://doi.org/10.1081/LFT-120028534
State	Published - 2004
Externally published	Yes

Keywords

Asphaltene
Heavy oil
Hydrotreating

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10.1081/LFT-120028534

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title = "Effects of catalyst properties on asphaltenes composition during hydrotreating of heavy oils",

abstract = "Three NiMo commercial catalysts were used for carrying out hydrotreating (HDT) experiments in a high-pressure pilot plant. Maya crude oil was employed as HDT feed. All hydrotreated products and their corresponding precipitated asphaltenes fractions were characterized by elemental analysis and metals contents. Extraction of asphaltenes was carried out according to the method described in ASTM D-3279. It was observed from our characterization results that while nitrogen and metals content in asphaltenes increase sulfur decrease as the reaction temperature is increased. This different behavior was attributed to the localization of each heteroatom in the asphaltene molecule. Pore size of catalysts showed the major influence on hydrotreated product asphaltenes composition.",

keywords = "Asphaltene, Heavy oil, Hydrotreating",

author = "J. Ancheyta and G. Centeno and F. Trejo",

note = "Funding Information: The authors thank the Research Programme {\textquoteleft}{\textquoteleft}Tratamiento de Crudo Maya{\textquoteright}{\textquoteright} at the Instituto Mexicano del Petr{\'o}leo for its financial support.",

year = "2004",

doi = "10.1081/LFT-120028534",

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T1 - Effects of catalyst properties on asphaltenes composition during hydrotreating of heavy oils

AU - Ancheyta, J.

AU - Centeno, G.

AU - Trejo, F.

N1 - Funding Information: The authors thank the Research Programme ‘‘Tratamiento de Crudo Maya’’ at the Instituto Mexicano del Petróleo for its financial support.

PY - 2004

Y1 - 2004

N2 - Three NiMo commercial catalysts were used for carrying out hydrotreating (HDT) experiments in a high-pressure pilot plant. Maya crude oil was employed as HDT feed. All hydrotreated products and their corresponding precipitated asphaltenes fractions were characterized by elemental analysis and metals contents. Extraction of asphaltenes was carried out according to the method described in ASTM D-3279. It was observed from our characterization results that while nitrogen and metals content in asphaltenes increase sulfur decrease as the reaction temperature is increased. This different behavior was attributed to the localization of each heteroatom in the asphaltene molecule. Pore size of catalysts showed the major influence on hydrotreated product asphaltenes composition.

AB - Three NiMo commercial catalysts were used for carrying out hydrotreating (HDT) experiments in a high-pressure pilot plant. Maya crude oil was employed as HDT feed. All hydrotreated products and their corresponding precipitated asphaltenes fractions were characterized by elemental analysis and metals contents. Extraction of asphaltenes was carried out according to the method described in ASTM D-3279. It was observed from our characterization results that while nitrogen and metals content in asphaltenes increase sulfur decrease as the reaction temperature is increased. This different behavior was attributed to the localization of each heteroatom in the asphaltene molecule. Pore size of catalysts showed the major influence on hydrotreated product asphaltenes composition.

KW - Asphaltene

KW - Heavy oil

KW - Hydrotreating

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U2 - 10.1081/LFT-120028534

DO - 10.1081/LFT-120028534

M3 - Artículo

SN - 1091-6466

VL - 22

SP - 219

EP - 225

JO - Petroleum Science and Technology

JF - Petroleum Science and Technology

IS - 1-2

ER -

Effects of catalyst properties on asphaltenes composition during hydrotreating of heavy oils

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Keywords

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