Role of HZSM-5 Aluminosilicates on Asphaltenes Deposition by High-Throughput in Situ Characterizations of a Microreservoir

Bruno Pinho, Karishma Minsariya, Andrew Yen, Nikhil Joshi, Ryan Hartman

Research output: Contribution to journalArticle

Abstract

Hydrocarbon reservoirs are complex in their mineralogy and chemistry. Microfluidics offers an effective platform for rapid, in situ characterizations at experimental conditions that intend to simulate sandstone reservoirs (near wellbore, in production time scale). We have begun to examine the influence of the Al2O3/SiO2 ratio (an important characteristic of reservoir mineralogy) on asphaltenes precipitated in quartz packed-bed microreactors using in situ Raman spectroscopy (2D to 3D mapping), UV-vis spectroscopy, and pressure sensors. The reservoir matrix was created by injecting 707 nm·aggregate-1 HZSM-5 zeolite fine particles (a model aluminosilicate available with Al2O3/SiO2 ratios of 1/91 and 1/26) on a quartz bed. The methodologies were developed to identify the effect of the chemical interactions, giving insights about asphaltenes' sheet size (nm) and bed occupancy variations. Our results show that, in the precipitation process, an Al2O3/SiO2 ratio of 1/26 leads to 13% higher asphaltenes' sheet size and >10% higher bed occupancy compared to a bed with no Al2O3 particles. When increasing the ratio, the number of pore volumes required to plug the pore throats increases, leading to greater deposit thickness. Our findings support that the Al2O3 content delays asphaltenes' nanoaggregation and has higher selectivity toward bigger molecules.

Original languageEnglish (US)
Pages (from-to)11640-11650
Number of pages11
JournalEnergy and Fuels
Volume31
Issue number11
DOIs
StatePublished - Nov 16 2017

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Asphaltenes
Aluminosilicates
Throughput
Quartz
Mineralogy
Zeolites
Petroleum reservoirs
Packed beds
Pressure sensors
Hydrocarbons
Sandstone
Ultraviolet spectroscopy
Microfluidics
Raman spectroscopy
Deposits
Molecules
aluminosilicate

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

Role of HZSM-5 Aluminosilicates on Asphaltenes Deposition by High-Throughput in Situ Characterizations of a Microreservoir. / Pinho, Bruno; Minsariya, Karishma; Yen, Andrew; Joshi, Nikhil; Hartman, Ryan.

In: Energy and Fuels, Vol. 31, No. 11, 16.11.2017, p. 11640-11650.

Research output: Contribution to journalArticle

Pinho, Bruno ; Minsariya, Karishma ; Yen, Andrew ; Joshi, Nikhil ; Hartman, Ryan. / Role of HZSM-5 Aluminosilicates on Asphaltenes Deposition by High-Throughput in Situ Characterizations of a Microreservoir. In: Energy and Fuels. 2017 ; Vol. 31, No. 11. pp. 11640-11650.
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