Journal ArticleDOI
Mathematical models of the thermal decomposition of coal: 1. The evolution of volatile matter
Reads0
Chats0
TLDR
In this paper, a model of the chemical changes during thermal decomposition of coal is presented, which describes the kinetics of the release of the main volatile matter constituents, thereby permitting the changes in the mass and composition of the solid residue to be estimated by element balances.About:
This article is published in Fuel.The article was published on 1983-05-01. It has received 198 citations till now. The article focuses on the topics: Coke & Carbonization.read more
Citations
More filters
Journal ArticleDOI
Review of the stability of biochar in soils: predictability of O:C molar ratios
TL;DR: In this article, the molar ratio of oxygen to carbon (O:C) in the resulting black carbon was found to provide a 1000-year biochar half-life.
Journal ArticleDOI
Underground coal gasification: From fundamentals to applications
TL;DR: Underground coal gasification (UCG) is a promising option for the future use of un-worked coal as mentioned in this paper, which can be used for industrial heating, power generation or the manufacture of hydrogen, synthetic natural gas or diesel fuel.
Journal ArticleDOI
Mathematical models of the thermal decomposition of coal: 2. Specific heats and heats of reaction
TL;DR: In this article, a new explanation for the endothermic reactions below 650 °C reported by previous workers is proposed as a consequence of the unexpectedly high specific heat predicted in this region using the above model.
Journal ArticleDOI
The occurence of unusual C27 and C29 sterane predominances in two types of Oman crude oil
TL;DR: In this paper, two types of Oman crude oils reveal unusual sterane distributions, which imply that the organisms active in the depositional environment of the respective source rocks were significantly different.
Journal ArticleDOI
H2 rich syngas by selective CO2 removal from biomass gasification in a dual fluidized bed system — Process modelling approach
Tobias Pröll,Hermann Hofbauer +1 more
TL;DR: In this article, a process model of dual fluidized bed gasification is presented based on mass and energy balances, and the model further covers the evaluation of thermodynamic equilibrium states for the special case that CaO/CaCO3 is used as bed material allowing selective transport of CO2 from the gasification reactor to the combustion reactor by repeated carbonation and calcination.
References
More filters
Journal ArticleDOI
Coal devolatilization and hydrogastification
Donald B. Anthony,Jack B. Howard +1 more
TL;DR: A review of available fundamental information focuses on thermal decomposition of coal in inert gas and in hydrogen, with emphasis on the effects on yield of products exerted by time, temperature, heating rate, pressure, hydrogen partial pressure, and particle size, and on the development of chemical and transport models of engineering importance as discussed by the authors.