Numerical simulation of Underground Coal Gasification process in order to determine the operational parameters in the commercial field; Case Study: K10 Coal Seam of Takht Region

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Jowkar Amin; NAJAFI MAHDI; SERESHKI FARHANG

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Journal: JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING Year:2019 | Volume:9 | Issue:19 Page(s): 113-126

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Title

Numerical simulation of Underground Coal Gasification process in order to determine the operational parameters in the commercial field; Case Study: K10 Coal Seam of Takht Region

Author(s)

Jowkar Amin | NAJAFI MAHDI | SERESHKI FARHANG | Issue Writer Certificate

Keywords

UCG

Operational Parameters

Numerical Simulation

Heating Value of Syngas

K10 Coal Seam of Takht Region

Abstract

Summary: In this paper developed a model by COMSOL software that able to predict Operational Parameters effect on the components and heating value of produced gas during underground coal gasification. In this model for shown the effects of Operational Parameters on UCG process a Case Study has been developed. The results show that this model able to predict the effects of Operational Parameters on the components and heating value of produced gas in UCG process. Introduction: Underground Coal Gasification (UCG) process have a good adaptation with environment, in this process at the first insitu-coal seam converted to syngas and then would be explorated. The main purpose in UCG process is producing syngas with a heating value or producing each gases that producing in UCG process (for example Hydrogen production). Before implement of UCG process, predict of the components and Heating Value of Syngas is necessary to economic analysis. In this paper presented a new model to gasify all coal in each stope, however; the produced gas have a high heating value. Methodology and Approaches: According to this model, moreover to gasify all of coal in each stope, the extent of heating value of produced gas is the same requested amount. Presented model in this research have been introduced with a Case Study for K10 Coal Seam of Takht Region. Finally Operational Parameters to produce syngas with appropriate components and heating value for gasify K10 coal seam is calculated (it should be noted that this design shows only one possible scenarios). Results and Conclusions: The results for this case study shown that in a period of 11 months, 9 stopes must be active simultaneously and Operational Parameters in each stope including temperature, cavity pressure, oxygen injection rate, steam injection rate and operation time should be consider 1273K, 1MPa, 10 mol/s, 20 mol/s and 11 months respectively. In this case, K10 coal seam can support feed of 27 MW IGCC-based power plant for 22 years.

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APA: Copy

Jowkar, Amin, NAJAFI, MAHDI, & SERESHKI, FARHANG. (2019). Numerical simulation of Underground Coal Gasification process in order to determine the operational parameters in the commercial field; Case Study: K10 Coal Seam of Takht Region. JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING, 9(19 ), 113-126. SID. https://sid.ir/paper/266102/en

Vancouver: Copy

Jowkar Amin, NAJAFI MAHDI, SERESHKI FARHANG. Numerical simulation of Underground Coal Gasification process in order to determine the operational parameters in the commercial field; Case Study: K10 Coal Seam of Takht Region. JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING[Internet]. 2019;9(19 ):113-126. Available from: https://sid.ir/paper/266102/en

IEEE: Copy

Amin Jowkar, MAHDI NAJAFI, and FARHANG SERESHKI, “Numerical simulation of Underground Coal Gasification process in order to determine the operational parameters in the commercial field; Case Study: K10 Coal Seam of Takht Region,” JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING, vol. 9, no. 19 , pp. 113–126, 2019, [Online]. Available: https://sid.ir/paper/266102/en

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