Journal ArticleDOI
Kinetic models comparison for steam gasification of coal/biomass blend chars.
Chaofen Xu,Song Hu,Jun Xiang,Haiping Yang,Lushi Sun,Sheng Su,Baowen Wang,Qindong Chen,Limo He +8 more
TLDR
Rational kinetic parameters were reached from these gas-solid reaction models, which provided a basis for design and operation of the realistic system of co-gasification of lignite and sawdust in this research.About:
This article is published in Bioresource Technology.The article was published on 2014-11-01. It has received 50 citations till now. The article focuses on the topics: Sawdust & Coal.read more
Citations
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Journal ArticleDOI
Discernment of synergism in pyrolysis of biomass blends using thermogravimetric analysis.
TL;DR: This study reports pyrolysis kinetics of biomass blends using isoconversional methods, viz.
Journal ArticleDOI
Co-gasification of coal and biomass blends: Chemistry and engineering
TL;DR: A critical review and analysis of co-gasification of coal/biomass blends is presented in this paper, where the chemistry of coal and biomass has been described along with different models for pyrolysis of cellulose and biomass.
Journal ArticleDOI
Experimental and kinetic studies on co-gasification of petroleum coke and biomass char blends
TL;DR: In this paper, a non-isothermal thermogravimetric method was applied to petroleum coke (PC), corncob char (CC) and their blends with the different mass ratios under CO 2 atmosphere.
Journal ArticleDOI
Pyrolysis, combustion and gasification studies of different sized coal particles using TGA-MS
TL;DR: In this article, thermogravimetric and mass-spectrometric (TG-MS) analysis and kinetics of different sized (60mm, 800mm, and 3mm) Saray (Turkish origin) coal is examined at various combustion temperature ranges.
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Physico-chemical properties and gasification reactivity of co-pyrolysis char from different rank of coal blended with lignocellulosic biomass: Effects of the cellulose
TL;DR: The results indicate that the improvements in the pore structure due to the presence of cellulose are more pronounced in the case of anthracite char with respect to bituminous char.
References
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A random pore model for fluid‐solid reactions: I. Isothermal, kinetic control
TL;DR: In this paper, a random pore model is developed for fluid-solid reactions, which allows for arbitrary pore size distributions in the reacting solid. But the model is not suitable for the case of gasification, and it cannot represent the behavior of a system that shows a maximum in reaction rate as well as one that does not.
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Estimating isothermal life from thermogravimetric data
TL;DR: In this paper, the authors presented a method for estimating equivalent isothermal life from thermogravimetric data and for estimating the apparent activation energy for volatilization even though the nature of the kinetic process is unknown.
Journal ArticleDOI
Combustion and gasification rates of lignocellulosic chars
TL;DR: In this paper, the state of the art of rate laws and kinetic constants for the gasification, with carbon dioxide and steam, and the combustion of chars produced from lignocellulosic fuels, including a brief outline about yields and composition of pyrolysis products.
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A structural model for gas—solid reactions with a moving boundary
J. Szekely,James Evans +1 more
TL;DR: In this paper, an alternative representation is proposed by describing the progress of the reaction in terms of the porosity, grain size, gas phase and solid state diffusivities and a heterogeneous reaction rate constant, which is now independent of structure.
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CO2 gasification rate analysis of coal char in entrained flow coal gasifier
TL;DR: In this article, coal chars were produced by rapid pyrolysis of pulverized bituminous coals using a DTF with a nitrogen gas flow at 1670 K. Gasification rate equations and kinetic parameters applicable to a pore diffusion zone at high temperature were obtained for each coal.