Critical Analysis of Underground Coal Gasification Models. Part I: Equilibrium Models – Literary Studies
نویسندگان
چکیده
Purpose Underground coal gasification is a very difficult process due to changes in the parameters over time and within space of reactor variety phenomena that occurs there. Consequently, it necessary create appropriate mathematical models, which simplify optimization forecast future results (especially final gas properties). The purpose this work was detailed critical analysis simplest simulations methods, based on thermodynamic calculations process. These called equilibrium can be divided into two groups: stoichiometric non-stoichiometric. other aim paper characterize various engineering methods used calculation processes. Methods Literary studies, concerned with general aspects underground modeling manner calculations, were as research method applied presented work. Results models characterization (including formulation process, range required parameters, rate convergence methodology searching solutions) non-stoichiometric numerous considerations article. Practical implications describes practical issues connected – their advantages, limitations possible problems (for example determination constants) potential applications (preliminary analysis, point reference more complex etc.). Originality/value This presents state art field modeling. article also attempt elaborate most important gasification.
منابع مشابه
Underground Coal Gasification: A Brief Review of Current Status
Coal gasification is a promising option for the future use of coal. Similarly to gasification in industrial reactors, underground coal gasification (UCG) produces syngas, which can be used for power generation or for the production of liquid hydrocarbon fuels and other valuable chemical products. As compared with conventional mining and surface gasification, UCG promises lower capital/operating...
متن کاملUCGVision: Underground Coal Gasification Process Data Visualization Aspects
This work presents the UCGVision system designed for underground coal gasification process visualization, prediction, and monitoring. The possibility to visualize the ongoing reactions during the process is crucial for better insight into the process itself. Moreover, the system task is to give researchers and in the future process supervisor a tool to observe the current state of the process b...
متن کاملEarly Ideas in Underground Coal Gasification and Their Evolution
This article follows the development of early UCG (underground coal gasification) ideas. Historical facts are discussed mainly from the technological perspective and early experiments in UCG are analyzed. Our search for the first successful UCG experiment brings to light a new finding, which was commonly overlooked in previous reviews. We also outline the key role that engineer and inventor A. ...
متن کاملa study of underground coal gasification (ucg) wastewater and sludge
underground coal gasification (ucg) is a non-conventional method of extracting gas from coal. the primary advantage of ucg is that it recovers gas from uneconomical or unminable coal, potentially increasing the value of the world’s coal reserves by an estimated 70%; for this reason, ucg has been implemented at sites around the world. however, the gaseous, liquid and solid waste streams which ac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Sustainable Mining
سال: 2021
ISSN: ['2300-3960', '2543-4950']
DOI: https://doi.org/10.46873/2300-3960.1272