Coalconversion technologies, although used ubiquitously, are often discredited due to high pollutant emissions, thereby emphasizing a dire need to optimize the combustion process. The cofiring of coal/biomass in a fluidized bed reactor has been an efficient way to optimize the pollutants emission. Herein, a new model has been designed in Aspen Plus® to simultaneously include detailed ...
WhatsApp: +86 18203695377Based on the process simulatorAspen Plus software,the entrainedflow pulverized coal gasification process was simulated by Gibbs free energy minimization method,the flow arithmetic was improved effects of oxygencoal ratio,steamcoal ratio,pressure and pulverized coal particle size on the crude syngas composition, gasification temperature,cold gas efficiency,carbon conversion ...
WhatsApp: +86 18203695377Typically, in the conventional coal fineness processing, the raw coal is firstly fed into a rotating bowl hub via a centre feed pipe. ... CFD simulation software of ANSYS Fluent was used to perform the numerical investigation [27]. An unstructured mesh of approximately 4,000,000 cells as illustrated in Fig. 5 was used for all pulverizer ...
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WhatsApp: +86 18203695377The USGS assessment and methodology reports cited within this software release require extensive processing using computational methods and modeling. The most demanding aspects of the modeling were performed using publicly available software: SGeMS and GSLIB. ... Computer programs for the assessment of coal resources (ver., April 2021 ...
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WhatsApp: +86 18203695377A 3D digital coal model with macropores (> μm) was constructed by using μCT scanning combined with Avizo image processing, and the equivalent pore network model (PNM) was extracted to calculate the absolute permeability of the coal samples. The CBM flow process in macropores is simulated by COMSOL, and the streamline distribution for the ...
WhatsApp: +86 18203695377Coal dust is the inevitable product in the process of coal mine production. The harm it brings mainly includes two aspects. One is that excessive dust concentration is easy to cause dust explosion accidents, which brings great security risks to coal mine production. ... Use Materials Studio molecular simulation software to simulate the ...
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WhatsApp: +86 18203695377Coal seam predrainage technology is widely used to prevent and control gas in China's highgas coal seams, and upward drilling is a safe and reliable technology. Using the Luling Coal Mine as the study location, according to the actual situation of the site, a layerthrough drilling process was proposed. Relying on a crosslayer extraction borehole, coal seam water injection efficiency ...
WhatsApp: +86 18203695377In this paper, Aspen Plus V11 software was used to simulate the process of coalbiomass copyrolysis, and the simulation process of coalbiomass copyrolysis was built in combination with the experimental process. The influence of raw material feed amount and different filling methods on the industrial production cost of coalbiomass co ...
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WhatsApp: +86 18203695377To construct the macromolecular model of gas coal in the Huainan mining area, 13C nuclear magnetic resonance spectroscopy (13CNMR), Xray diffraction (XRD), and Xray photoelectron spectroscopy (XPS) tests were used to analyze the microstructure characteristics of coal including the aromatic ring type, the linkage mode, and the chemical bonding composition. The model was simulated and ...
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WhatsApp: +86 18203695377In this paper, Aspen Plus software was used to simulate the process of coal biomass copyrolysis, and the simulation process of coalbiomass copyrolysis was built in combination with the ...
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