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Keywords = Texaco pilot plant

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14 pages, 3320 KiB  
Article
Advanced One-Dimensional Entrained-Flow Gasifier Model Considering Melting Phenomenon of Ash
by Jinsu Kim, Hyunmin Oh, Seokyoung Lee and Young-Seek Yoon
Energies 2018, 11(4), 1015; https://doi.org/10.3390/en11041015 - 21 Apr 2018
Cited by 6 | Viewed by 4810
Abstract
A one-dimensional model is developed to represent the ash-melting phenomenon, which was not considered in the previous one-dimensional (1-D) entrained-flow gasifier model. We include sensible heat of slag and the fusion heat of ash in the heat balance equation. To consider the melting [...] Read more.
A one-dimensional model is developed to represent the ash-melting phenomenon, which was not considered in the previous one-dimensional (1-D) entrained-flow gasifier model. We include sensible heat of slag and the fusion heat of ash in the heat balance equation. To consider the melting of ash, we propose an algorithm that calculates the energy balance for three scenarios based on temperature. We also use the composition and the thermal properties of anorthite mineral to express ash. gPROMS for differential equations is used to solve this algorithm in a simulation; the results include coal conversion, gas composition, and temperature profile. Based on the Texaco pilot plant gasifier, we validate our model. Our results show good agreement with previous experimental data. We conclude that the sensible heat of slag and the fusion heat of ash must be included in the entrained flow gasifier model. Full article
(This article belongs to the Special Issue Biomass Chars: Elaboration, Characterization and Applications Ⅱ)
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