Physical properties and rheological characteristics of deasphalted oil produced from a solvent deasphalting process

Jung Moo Lee, Ji Won Hwang, Sang Chul Shin, Hyun Wook Jung, Ki Bong Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Because of conventional oil being-exhausted and its increasing price, the technologies to use unconventional oil and low value crude residues, which have not been fully exploited, are receiving more and more interest. Unconventional oil contains a lot of asphaltene which hinders utilizability of unconventional oil. As the asphaltene has high viscosity and contains large amounts of heavy metals, it decreases the fluidity of oil and causes catalyst poisoning. Furthermore, the process of desulfurization and denitrification are necessary to use unconventional oil because the asphaltene has a high sulfur and nitrogen content. As the unconventional oil has these drawbacks, an extraction process called solvent deasphalting is commonly used to acquire deasphalted oil(DAO) through the removal of asphaltene. The DAO is generally used for lube base oil, and besides, it is converted into transportation fuel and chemical raw materials by additional refinement. In this study, the physical properties and rheological characteristics of DAO were measured for more efficient utilization of DAO. Pentane and hexane were added into DAO to investigate the effect of the solvents on the viscosity of DAO solution. As the content of pentane and hexane was increased, the viscosity of DAO was decreased, resulting in the improved fluidity of DAO. The degree of decreasing rate in viscosity was declined with increasing amount of solvent. The viscosity of DAO was characterized using a rheometer under various temperature conditions to investigate the effect of temperature on the fluidity. The fluidity of DAO was rapidly increased with increasing temperature and the DAO showed the behavior of a Newtonian fluid above 70 OC, which is called the softening point. Additionally, the fluid behavior of DAO in a pipe was simulated using computer softwares, GAMBIT and FLUENT. The velocity profile of DAO in a pipe was rapidly changed around the softening point.

Original languageEnglish
Title of host publication11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
Publication statusPublished - 2011 Dec 1
Event2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States
Duration: 2011 Oct 162011 Oct 21

Other

Other2011 AIChE Annual Meeting, 11AIChE
CountryUnited States
CityMinneapolis, MN
Period11/10/1611/10/21

Fingerprint

Oils
Physical properties
Fluidity
Viscosity
Hexanes
Hexane
Pipe
Catalyst poisoning
Fluids
Denitrification
Rheometers
Desulfurization
Heavy Metals
Sulfur
Temperature
Heavy metals

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Lee, J. M., Hwang, J. W., Shin, S. C., Jung, H. W., & Lee, K. B. (2011). Physical properties and rheological characteristics of deasphalted oil produced from a solvent deasphalting process. In 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings

Physical properties and rheological characteristics of deasphalted oil produced from a solvent deasphalting process. / Lee, Jung Moo; Hwang, Ji Won; Shin, Sang Chul; Jung, Hyun Wook; Lee, Ki Bong.

11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, JM, Hwang, JW, Shin, SC, Jung, HW & Lee, KB 2011, Physical properties and rheological characteristics of deasphalted oil produced from a solvent deasphalting process. in 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011 AIChE Annual Meeting, 11AIChE, Minneapolis, MN, United States, 11/10/16.
Lee JM, Hwang JW, Shin SC, Jung HW, Lee KB. Physical properties and rheological characteristics of deasphalted oil produced from a solvent deasphalting process. In 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011
Lee, Jung Moo ; Hwang, Ji Won ; Shin, Sang Chul ; Jung, Hyun Wook ; Lee, Ki Bong. / Physical properties and rheological characteristics of deasphalted oil produced from a solvent deasphalting process. 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011.
@inproceedings{51e7afcdbefe4b6c8def9d89df2c5b6c,
title = "Physical properties and rheological characteristics of deasphalted oil produced from a solvent deasphalting process",
abstract = "Because of conventional oil being-exhausted and its increasing price, the technologies to use unconventional oil and low value crude residues, which have not been fully exploited, are receiving more and more interest. Unconventional oil contains a lot of asphaltene which hinders utilizability of unconventional oil. As the asphaltene has high viscosity and contains large amounts of heavy metals, it decreases the fluidity of oil and causes catalyst poisoning. Furthermore, the process of desulfurization and denitrification are necessary to use unconventional oil because the asphaltene has a high sulfur and nitrogen content. As the unconventional oil has these drawbacks, an extraction process called solvent deasphalting is commonly used to acquire deasphalted oil(DAO) through the removal of asphaltene. The DAO is generally used for lube base oil, and besides, it is converted into transportation fuel and chemical raw materials by additional refinement. In this study, the physical properties and rheological characteristics of DAO were measured for more efficient utilization of DAO. Pentane and hexane were added into DAO to investigate the effect of the solvents on the viscosity of DAO solution. As the content of pentane and hexane was increased, the viscosity of DAO was decreased, resulting in the improved fluidity of DAO. The degree of decreasing rate in viscosity was declined with increasing amount of solvent. The viscosity of DAO was characterized using a rheometer under various temperature conditions to investigate the effect of temperature on the fluidity. The fluidity of DAO was rapidly increased with increasing temperature and the DAO showed the behavior of a Newtonian fluid above 70 OC, which is called the softening point. Additionally, the fluid behavior of DAO in a pipe was simulated using computer softwares, GAMBIT and FLUENT. The velocity profile of DAO in a pipe was rapidly changed around the softening point.",
author = "Lee, {Jung Moo} and Hwang, {Ji Won} and Shin, {Sang Chul} and Jung, {Hyun Wook} and Lee, {Ki Bong}",
year = "2011",
month = "12",
day = "1",
language = "English",
isbn = "9780816910700",
booktitle = "11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings",

}

TY - GEN

T1 - Physical properties and rheological characteristics of deasphalted oil produced from a solvent deasphalting process

AU - Lee, Jung Moo

AU - Hwang, Ji Won

AU - Shin, Sang Chul

AU - Jung, Hyun Wook

AU - Lee, Ki Bong

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Because of conventional oil being-exhausted and its increasing price, the technologies to use unconventional oil and low value crude residues, which have not been fully exploited, are receiving more and more interest. Unconventional oil contains a lot of asphaltene which hinders utilizability of unconventional oil. As the asphaltene has high viscosity and contains large amounts of heavy metals, it decreases the fluidity of oil and causes catalyst poisoning. Furthermore, the process of desulfurization and denitrification are necessary to use unconventional oil because the asphaltene has a high sulfur and nitrogen content. As the unconventional oil has these drawbacks, an extraction process called solvent deasphalting is commonly used to acquire deasphalted oil(DAO) through the removal of asphaltene. The DAO is generally used for lube base oil, and besides, it is converted into transportation fuel and chemical raw materials by additional refinement. In this study, the physical properties and rheological characteristics of DAO were measured for more efficient utilization of DAO. Pentane and hexane were added into DAO to investigate the effect of the solvents on the viscosity of DAO solution. As the content of pentane and hexane was increased, the viscosity of DAO was decreased, resulting in the improved fluidity of DAO. The degree of decreasing rate in viscosity was declined with increasing amount of solvent. The viscosity of DAO was characterized using a rheometer under various temperature conditions to investigate the effect of temperature on the fluidity. The fluidity of DAO was rapidly increased with increasing temperature and the DAO showed the behavior of a Newtonian fluid above 70 OC, which is called the softening point. Additionally, the fluid behavior of DAO in a pipe was simulated using computer softwares, GAMBIT and FLUENT. The velocity profile of DAO in a pipe was rapidly changed around the softening point.

AB - Because of conventional oil being-exhausted and its increasing price, the technologies to use unconventional oil and low value crude residues, which have not been fully exploited, are receiving more and more interest. Unconventional oil contains a lot of asphaltene which hinders utilizability of unconventional oil. As the asphaltene has high viscosity and contains large amounts of heavy metals, it decreases the fluidity of oil and causes catalyst poisoning. Furthermore, the process of desulfurization and denitrification are necessary to use unconventional oil because the asphaltene has a high sulfur and nitrogen content. As the unconventional oil has these drawbacks, an extraction process called solvent deasphalting is commonly used to acquire deasphalted oil(DAO) through the removal of asphaltene. The DAO is generally used for lube base oil, and besides, it is converted into transportation fuel and chemical raw materials by additional refinement. In this study, the physical properties and rheological characteristics of DAO were measured for more efficient utilization of DAO. Pentane and hexane were added into DAO to investigate the effect of the solvents on the viscosity of DAO solution. As the content of pentane and hexane was increased, the viscosity of DAO was decreased, resulting in the improved fluidity of DAO. The degree of decreasing rate in viscosity was declined with increasing amount of solvent. The viscosity of DAO was characterized using a rheometer under various temperature conditions to investigate the effect of temperature on the fluidity. The fluidity of DAO was rapidly increased with increasing temperature and the DAO showed the behavior of a Newtonian fluid above 70 OC, which is called the softening point. Additionally, the fluid behavior of DAO in a pipe was simulated using computer softwares, GAMBIT and FLUENT. The velocity profile of DAO in a pipe was rapidly changed around the softening point.

UR - http://www.scopus.com/inward/record.url?scp=84863144788&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863144788&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84863144788

SN - 9780816910700

BT - 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings

ER -