Study on a new upgrading process of heavy oils combined with SAGD by means of hydrothermal treatment

Atsushi Kishita; H. Kamimura; C. X. Hong; H. Enomoto

Study on a new upgrading process of heavy oils combined with SAGD by means of hydrothermal treatment

Atsushi Kishita, H. Kamimura, C. X. Hong, H. Enomoto

Environmental Studies

Research output: Contribution to conference › Paper › peer-review

Abstract

A study on the hydrothermal or aquathermal cracking of bitumen in the range of supercritical water clarified the reaction conditions and verified the preliminary results to develop a new on site upgrading technology. Bitumens were easily converted to light oils, with simultaneous reduction of sulfur to ~ 0.5%, vanadium to 10%, and coke production to 10%. At 703 K and 15 min reaction time with 0.1 M KOH solution at 25% water loading, sufficiently light oils for pipeline transportation were produced. The fluctuations of the oil/water ratio in the range of 0.3:1 to 1:1, KOH concentration from 0.03 to 1 M, and water loading of 20-30% are not serious influences. A continuous flow reactor of 0.5 bpd capacity for upgrading bitumen was operated. From this, fundamental data for the new process were generated. In hydrothermal cracking, H₂ or catalyst is not used. In alkali hydrothermal cracking, CO₂ or H₂S is not produced. A combined system with SAGD can use wastewater as steam for injection.

Original language	English
Pages	1-11
Number of pages	11
Publication status	Published - 1998 Dec 1
Event	7th International Conference 'Heavy Crude and Tar Sands' - Beijing, China Duration: 1998 Oct 27 → 1998 Oct 30

Other

Other	7th International Conference 'Heavy Crude and Tar Sands'
Country/Territory	China
City	Beijing
Period	98/10/27 → 98/10/30

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Study on a new upgrading process of heavy oils combined with SAGD by means of hydrothermal treatment",

abstract = "A study on the hydrothermal or aquathermal cracking of bitumen in the range of supercritical water clarified the reaction conditions and verified the preliminary results to develop a new on site upgrading technology. Bitumens were easily converted to light oils, with simultaneous reduction of sulfur to ~ 0.5%, vanadium to 10%, and coke production to 10%. At 703 K and 15 min reaction time with 0.1 M KOH solution at 25% water loading, sufficiently light oils for pipeline transportation were produced. The fluctuations of the oil/water ratio in the range of 0.3:1 to 1:1, KOH concentration from 0.03 to 1 M, and water loading of 20-30% are not serious influences. A continuous flow reactor of 0.5 bpd capacity for upgrading bitumen was operated. From this, fundamental data for the new process were generated. In hydrothermal cracking, H2 or catalyst is not used. In alkali hydrothermal cracking, CO2 or H2S is not produced. A combined system with SAGD can use wastewater as steam for injection.",

author = "Atsushi Kishita and H. Kamimura and Hong, {C. X.} and H. Enomoto",

year = "1998",

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AU - Kishita, Atsushi

AU - Kamimura, H.

AU - Hong, C. X.

AU - Enomoto, H.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - A study on the hydrothermal or aquathermal cracking of bitumen in the range of supercritical water clarified the reaction conditions and verified the preliminary results to develop a new on site upgrading technology. Bitumens were easily converted to light oils, with simultaneous reduction of sulfur to ~ 0.5%, vanadium to 10%, and coke production to 10%. At 703 K and 15 min reaction time with 0.1 M KOH solution at 25% water loading, sufficiently light oils for pipeline transportation were produced. The fluctuations of the oil/water ratio in the range of 0.3:1 to 1:1, KOH concentration from 0.03 to 1 M, and water loading of 20-30% are not serious influences. A continuous flow reactor of 0.5 bpd capacity for upgrading bitumen was operated. From this, fundamental data for the new process were generated. In hydrothermal cracking, H2 or catalyst is not used. In alkali hydrothermal cracking, CO2 or H2S is not produced. A combined system with SAGD can use wastewater as steam for injection.

AB - A study on the hydrothermal or aquathermal cracking of bitumen in the range of supercritical water clarified the reaction conditions and verified the preliminary results to develop a new on site upgrading technology. Bitumens were easily converted to light oils, with simultaneous reduction of sulfur to ~ 0.5%, vanadium to 10%, and coke production to 10%. At 703 K and 15 min reaction time with 0.1 M KOH solution at 25% water loading, sufficiently light oils for pipeline transportation were produced. The fluctuations of the oil/water ratio in the range of 0.3:1 to 1:1, KOH concentration from 0.03 to 1 M, and water loading of 20-30% are not serious influences. A continuous flow reactor of 0.5 bpd capacity for upgrading bitumen was operated. From this, fundamental data for the new process were generated. In hydrothermal cracking, H2 or catalyst is not used. In alkali hydrothermal cracking, CO2 or H2S is not produced. A combined system with SAGD can use wastewater as steam for injection.

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T2 - 7th International Conference 'Heavy Crude and Tar Sands'

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ER -

Study on a new upgrading process of heavy oils combined with SAGD by means of hydrothermal treatment

Abstract

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