Process and economic model of in-field heavy oil upgrading using aqueous pyrolysis

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A process and economic model for aqueous pyrolysis in-field upgrading of heavy oil has been developed. The model has been constructed using the ASPEN PLUS chemical process simulator. The process features cracking of heavy oil at moderate temperatures in the presence of water to increase oil quality and thus the value of the oil. Calculations with the model indicate that for a 464 Mg/day (3,000 bbl/day) process, which increases the oil API gravity of the processed oil from 13.5{degree} to 22.4{degree}, the required value increase of the oil would need to be at least $2.80/Mg{center_dot}{degree}API($0.40/bbl{center_dot}{degree}API) to make the process economically ... continued below

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98 p.

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Thorsness, C. B., LLNL January 21, 1997.

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Description

A process and economic model for aqueous pyrolysis in-field upgrading of heavy oil has been developed. The model has been constructed using the ASPEN PLUS chemical process simulator. The process features cracking of heavy oil at moderate temperatures in the presence of water to increase oil quality and thus the value of the oil. Calculations with the model indicate that for a 464 Mg/day (3,000 bbl/day) process, which increases the oil API gravity of the processed oil from 13.5{degree} to 22.4{degree}, the required value increase of the oil would need to be at least $2.80/Mg{center_dot}{degree}API($0.40/bbl{center_dot}{degree}API) to make the process economically attractive. This level of upgrading has been demonstrated in preliminary experiments with candidate catalysts. For improved catalysts capable of having the coke make and increasing the pyrolysis rate, a required price increase for the oil as low as $1.34/Mg{center_dot}{degree}API ($0.21/bbl{center_dot}{degree}API)has been calculated.

Physical Description

98 p.

Notes

OSTI as DE97053114

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  • Other Information: PBD: 21 Jan 1997

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  • Other: DE97053114
  • Report No.: UCRL-ID--126220
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/492015 | External Link
  • Office of Scientific & Technical Information Report Number: 492015
  • Archival Resource Key: ark:/67531/metadc681261

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  • January 21, 1997

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  • July 25, 2015, 2:21 a.m.

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  • Feb. 19, 2016, 8:40 p.m.

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Thorsness, C. B., LLNL. Process and economic model of in-field heavy oil upgrading using aqueous pyrolysis, report, January 21, 1997; California. (digital.library.unt.edu/ark:/67531/metadc681261/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.