Studies of Catalytic Properties of Inorganic Rock Matrices in Redox Reactions

Dobrynkin, N. M.; Batygina, M. V.; Носков, А. С.

doi:10.13044/j.sdewes.d5.0151

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…The Whitesands project since 2006 has field proven the THAI process and also achieved temperatures ranging from 400-700 • C, production capacity of 1000 BOPD with the produced oil quality ranging from 10-17 • API and 2000-100 cP viscosity against original bitumen of 7.6 • API and 500,000 cP [21,22]. At these temperatures, the naturally-occurring (connate) water can be converted into steam and consequently hydrogen can be liberated in situ via water-gas shift reaction promoted by the host rock minerals in addition to the integrated catalyst in the production liner [21,23,24]. Hydroprocessing of heavy oil derived from bitumen was carried out by Kim et al [25] using NiMo/alumina catalyst at process conditions: temperature (625-685 K), LHSV (0.14-0.80 h −1 ), pressure 13.7 MPa and H/oil ratio 890 m 3 •m −3 .…”

Section: Introductionmentioning

confidence: 99%

In Situ Catalytic Upgrading of Heavy Crude with CAPRI: Influence of Hydrogen on Catalyst Pore Plugging and Deactivation due to Coke

Hart

Wood

2018

Energies

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Heavy crude oil is known to have low hydrogen-to-carbon ratios compared to light oil. This is due to the significant content of carbon-rich species such as resins and asphaltenes; hence their upgrading is commonly through carbon-rejection. However, carbon-rejection promotes rapid fouling of catalyst and pore plugging, yielding low upgraded oil and consequently low fuel distillate fractions when distilled. The roles of hydrogen-addition on in situ catalytic upgrading were investigated at pre-established conditions (425 • C, LHSV 11.8 h −1 , and 20-40 bars) using a simulated fixed-bed reactor that mimics the annular sheath of catalyst (CAPRI) surrounding the horizontal producer well of the Toe-to-Heel Air Injection (THAI) process. It was found that with H-addition, the upgraded oil American Petroleum Institute (API) gravity increased to about 5 • compared to 3 • obtained with N 2 above 13 • (THAI feed oil). The fuel distillate fractions increased to 62% (N 2 , 20 bar), 65% (H 2 , 20 bar), and 71.8% (H 2 , 30 bar) relative to 40.6% (THAI feed oil); while the coke contents of the catalyst after experiments were 35.3 wt % (N 2), and 27.2 wt % (H 2). It was also found that catalyst pore plugging and deactivation due to coke was significantly lower under hydrogen than with nitrogen; hence the catalyst is less susceptible to coke fouling when the upgrading reaction is carried out under hydrogen. The coke fouling further decreases with increasing hydrogen pressure while the API gravity of the upgraded oil marginally increases by 0.3 • for every 10 bar increase in pressure from 20 to 40 bar.

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Section: Introductionmentioning

confidence: 99%

In Situ Catalytic Upgrading of Heavy Crude with CAPRI: Influence of Hydrogen on Catalyst Pore Plugging and Deactivation due to Coke

Hart

Wood

2018

Energies

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“…More recent evidence [55] suggests that mineral matrices' intrinsic catalytic properties of various kinds (basalts, clays, sandstones) are of interest for in situ heavy oil upgrading. In fact, this may result in advanced technologies for enhanced oil recovery.…”

Section: As Substrates For Embedded Catalystsmentioning

confidence: 99%

“…In Ref. [55], the authors studied the elemental, surface and composition in addition to matrix particle morphology, surface and acidic properties using elemental analysis, X-ray diffraction, adsorption and desorption of nitrogen and ammonia. The obtained results have fixed for the first time the inorganic matrices' catalytic activity of ammonium nitrate decomposition, oxidation of hydrocarbons and carbon monoxide and hydrocracking of asphaltenes into maltenes.…”

Section: As Substrates For Embedded Catalystsmentioning

confidence: 99%

Rock Mineral Components’ Effects on Heavy and Shale Oil Transformation during Aquathermolysis

Vakhin

2022

Energies

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One of the main topics that generate the interest of experts nowadays involves the processes of organic matter chemical transformation during heavy and shale oil reservoirs’ development via thermally enhanced oil recovery. It is common knowledge that the host rock has a catalytic effect on the ongoing processes. In addition, oil transformation is mostly associated with destructive processes of resins and asphaltenes molecules. As a result, this would provide an increase in oil mobility as a result of kerogen destruction in shale oil. This ensures the formation of synthetic oil and an increase in the filtration characteristics of the rock. Besides, iron-containing compounds in the composition of the rock are catalytically active in the above processes. Moreover, clay minerals have high catalytic activity for many reactions of organic matter transformation. This review considers publications that study the role played by the rock and its individual components in the processes of in situ upgrading of heavy and shale oil.

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