Comparison of Natural and Synthetic Petroleum Coke Slag Viscosities under Reducing Conditions: Applicability of Predictive Models Using Factsage and Modified Urbain Model

D’Souza, Suzanna A.; Banik, Shubhadeep; Vuthaluru, Hari B.; Pisupati, Sarma V.

doi:10.3390/fuels2010003

Open AccessArticle

Comparison of Natural and Synthetic Petroleum Coke Slag Viscosities under Reducing Conditions: Applicability of Predictive Models Using Factsage and Modified Urbain Model

¹

School of Chemical and Petroleum Engineering, Curtin University of Technology, GPO Box U1987, Perth 6845, Australia

²

John and Willie Leone Family Department of Energy and Mineral Engineering and The EMS Energy Institute, 110 Hosler Building, The Pennsylvania State University, University Park, PA 16802, USA

^*

Author to whom correspondence should be addressed.

Fuels 2021, 2(1), 37-47; https://doi.org/10.3390/fuels2010003

Submission received: 13 November 2020 / Revised: 20 January 2021 / Accepted: 21 January 2021 / Published: 5 February 2021

(This article belongs to the Special Issue Feature Papers in Fuels)

Download

Browse Figures

Versions Notes

Abstract

The viscosity of slag from an operating integrated gasification combined cycle (IGCC) plant utilising petroleum coke and a synthetic petcoke slag with the same composition made from chemical grade oxides in a reducing environment for gasification application were investigated in this study. A high temperature rotating bob-type viscometer was used to measure viscosity between temperatures of 1250–1375 °C. Natural and synthetic ash had similar viscosities above 1300 °C in this study. The viscosity was predicted by using FactSage, a thermodynamic modelling software, in conjunction with different viscosity models, available in the open literature. Percentage deviations of predicted viscosities from different models with experimentally measured values ranged from about 41 to 151%. Crystallisation of the slag was noted in SEM-EDS (scanning electron microscopy– energy dispersive spectroscopy) and FactSage results. Solid phases from FactSage predictions were used to modify the Kalmanovitch–Frank model with the Roscoe method. It predicted the viscosity of the slag accurately between 1250 and 1375 °C. Average percentage deviation from measured natural ash viscosity was about 11%.

Keywords: FactSage; gasification; modified Urbain model; petcoke; synthetic

Share and Cite

MDPI and ACS Style

D’Souza, S.A.; Banik, S.; Vuthaluru, H.B.; Pisupati, S.V. Comparison of Natural and Synthetic Petroleum Coke Slag Viscosities under Reducing Conditions: Applicability of Predictive Models Using Factsage and Modified Urbain Model. Fuels 2021, 2, 37-47. https://doi.org/10.3390/fuels2010003

AMA Style

D’Souza SA, Banik S, Vuthaluru HB, Pisupati SV. Comparison of Natural and Synthetic Petroleum Coke Slag Viscosities under Reducing Conditions: Applicability of Predictive Models Using Factsage and Modified Urbain Model. Fuels. 2021; 2(1):37-47. https://doi.org/10.3390/fuels2010003

Chicago/Turabian Style

D’Souza, Suzanna A., Shubhadeep Banik, Hari B. Vuthaluru, and Sarma V. Pisupati. 2021. "Comparison of Natural and Synthetic Petroleum Coke Slag Viscosities under Reducing Conditions: Applicability of Predictive Models Using Factsage and Modified Urbain Model" Fuels 2, no. 1: 37-47. https://doi.org/10.3390/fuels2010003

APA Style

D’Souza, S. A., Banik, S., Vuthaluru, H. B., & Pisupati, S. V. (2021). Comparison of Natural and Synthetic Petroleum Coke Slag Viscosities under Reducing Conditions: Applicability of Predictive Models Using Factsage and Modified Urbain Model. Fuels, 2(1), 37-47. https://doi.org/10.3390/fuels2010003

Article Menu

Comparison of Natural and Synthetic Petroleum Coke Slag Viscosities under Reducing Conditions: Applicability of Predictive Models Using Factsage and Modified Urbain Model

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI