1. Introduction. With the depletion of oil resources, it is important to improve clean coal technology and use coal resources in a more efficient way, which also helps in reducing pollutant emissions [1].Coal gasification is one of the most important clean coal technologies, and the Shell coal gasification process (SCGP) is a popular coal gasification process.
WhatsApp: +86 18037808511
The thermoeconomic optimization of the improved gasification process with CWS preheating technology using multiobjective optimization is a tradeoff between cold gas efficiency and total cost. The MOGA is conducted to maximize CGE and minimize C tot generating 100 samples initially and 100 samples per iteration. As the convergence criterion ...
WhatsApp: +86 18037808511
When designing the coal gasification process, use the RGibbs model [16] or other models to simplify the coal gasifier in one dimension, ... Structural optimization of coal gasification furnace. The height of the gasifier studied in this paper is m. The prototype gasifier has only one set of four opposed nozzles, which leads to the uneven ...
WhatsApp: +86 18037808511
The underground coal gasification (UCG) technology converts coal into product gas and provides the option of environmentally and economically attractive coal mining. Obtained syngas can be used for heating, electricity, or chemical production. Numerous laboratory coal gasification trials have been performed in the academic and industrial fields. Labscale tests can provide insight into the ...
WhatsApp: +86 18037808511
The robustness of the efficient syngas (ES, H 2 + CO) fraction in an entrained flow coal gasification is very important to the stable operations of some downstream applications. This study presents the details about the robust optimization of the ES fraction in a typical entrained flow coal gasification, Shell coal gasification process (SCGP).
WhatsApp: +86 18037808511
The coalgasification wastewater treatment is the most difficult pollution control task for coalgasification plants. It is identified that there are two serious problems occurring in the current treatment process,, low performance of phenols removal and plugging induced by ammonia salts. A new treatment process is proposed in this paper to solve these severe problems and pursue clean ...
WhatsApp: +86 18037808511
The present research work proposes an optimization procedure using Taguchi method and utility concept with the main objective of maximizing the calorific value of syngas with lower CO 2 yield during coal gasification process using thermodynamic equilibrium model based on stoichiometric approach. After validating the model with experimental results, the effect of air supply and steam supply on ...
WhatsApp: +86 18037808511
A heat integration optimization method that considers the changes in process parameters is proposed to find the global optimal process scheme for a coal chemical company's phenols and ammonia recovery process. The phenols and ammonia recovery process is simulated by Aspen Plus, and a programming method for heat exchanger networks synthesis that can simultaneously optimize process parameters ...
WhatsApp: +86 18037808511
In the coal gasification process of converting coal to SNG, coal is gasified with steam and oxygen. The gasification process produces carbon monoxide (CO), hydrogen (H 2), carbon dioxide (CO 2), methane (CH 4), and higher hydrocarbons such as ethane and propane [5]. Methanation reaction is the main process of converting coal to gas.
WhatsApp: +86 18037808511
Coal gasification technology has gained increasing popularity in recent years, but the optimization of operating conditions remains inefficient. The operation optimization of the Shell coal gasification process (SCGP) is investigated in this paper using an operation optimization model integrating data analytics and mechanism analysis. The objective function contains two important indicators.
WhatsApp: +86 18037808511
For the downstream synthesis process, no matter what the end product is, there is one common prerequisite: the syngas (mostly H 2 and CO) generated from the gasification process must contain as few impurities and inert species such as nitrogen as possible. Traditionally, this requirement is met by using pure oxygen instead of air as gasifying ...
WhatsApp: +86 18037808511
The pilotscale gasification plant is used to perform a process optimization analysis for the gasification of PKS using coal bottom ash as a catalyst to assess the optimum conditions for producing the most H 2 and syngas composition.
WhatsApp: +86 18037808511
Gasification fine slag (GFS) is the waste produced in the coal gasification process, its production and storage volume are increasing with the largescale promotion of coal gasification technology. Currently, the GFS black water is processed by the horizontal belt filter and the moisture content of the obtained filter cake exceeds 50%, which ...
WhatsApp: +86 18037808511
Operation optimization of Shell coal gasification process based on convolutional neural network models. ... Machine learning aided supercritical water gasification for H2rich syngas production with process optimization and catalyst screening. Chem Eng J, 426 (2021), p. 131285, / View PDF View article View in Scopus ...
WhatsApp: +86 18037808511
A pulverized coal gasificationintegrated SOEC process (Process 2) has been investigated, the watergasshift unit is avoided and a simplified acid gas removal process is implemented to replace traditional acid gas removal unit in Process 2. ... Optimization of coalbased methanol distillation scheme using process superstructure method to ...
WhatsApp: +86 18037808511
Feeding variability appears extensively in phenol and ammonia recovery process of coal chemical plant, which has caused severe problems in effluent quality. This study is aim to take the feeding variability into consideration for process optimization and analysis of the phenol and ammonia recovery process, have been not studied in previous efforts.
WhatsApp: +86 18037808511
This process decouples the two steps, among them, coal pyrolysis converts the hydrogen in coal to H 2 to the maximum extent without being consumed, and char gasification causes the coke react with the water vapor in the gasification agent (C + H 2 O ↔ H 2 + CO) to generate H 2 and CO. Through cooperative matching of the two stages, hydrogen ...
WhatsApp: +86 18037808511
Coal gasification is recognized as the core technology of clean coal utilization that exhibits significant advantages in hydrogenrich syngas production and CO2 emission reduction. This review briefly discusses the recent research progress on various coal gasification techniques, including conventional coal gasification (fixed bed, fluidized bed, and entrained bed gasification) and relatively ...
WhatsApp: +86 18037808511
Semantic Scholar extracted view of "Comprehensive optimization of coal chemical looping gasification process for low CO2 emission based on multiscale simulation coupled experiment" by Z. Cui et al.
WhatsApp: +86 18037808511
Gasification agents with different oxygen concentrations directly affect the temperature of the gasification area, while the UCG process is a selfheat balance process [20]. The heat generated by combustion is conducive to establishing the ideal temperature field of the underground gasifier and leads to a reduction reaction and decomposition ...
WhatsApp: +86 18037808511
Coal gasification is an efficient, clean and versatile process, which can be adapted for producing hydrogen [2]. The comparison of different technologies as well as the
WhatsApp: +86 18037808511
Dong, Z., et al. Modeling the Combustion of Coal in a 300MW Circulating Fluidized Bed Boiler with Aspen Plus. in 2010 AsiaPacific Power and Energy Engineering Conference. 2010. Simulation of Coal ...
WhatsApp: +86 18037808511
Optimization of an advanced coalfired integrated gasification combined cycle system requires an accurate numerical prediction of gasifier performance. While the turbulent multiphase reacting flow inside entrainedflow gasifiers has been modeled through computational fluid dynamic (CFD), the accuracy of submodels requires further improvement.
WhatsApp: +86 18037808511
The mathematical model used to study the entrained flow coal gasification process is based on the commercial CFD software Ansys Fluent [70] which incorporates the finitevolume method. ... Coal gasification results. The optimization of global devolatilization models was performed through the iterative procedure. Hence, the simulation results ...
WhatsApp: +86 18037808511
Abstract. After successful completion of the demonstration phase on Illinois No. 5 coal, SCGP1, the Coal Gasification plant at Dee Park Texas, entered the coal feedstock phase, with the primary focus on gasifying a wide variety of coals, and a parallel experimental phase for process optimization and confirmation of several process improvements.
WhatsApp: +86 18037808511
A material supplier from Belgium would like to produce limestone powder for his custome...
India is rich in various mineral resources and it is an important mineral processing market
Copyright © 2023 GMC Co., Ltd. SiteMap
