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Gas production strategy of underground coal gasification based on multiple gas sources.

Tianhong D, Zuotang W, Limin Z, Dongdong L - ScientificWorldJournal (2014)

Bottom Line: To lower stability requirement of gas production in UCG (underground coal gasification), create better space and opportunities of development for UCG, an emerging sunrise industry, in its initial stage, and reduce the emission of blast furnace gas, converter gas, and coke oven gas, this paper, for the first time, puts forward a new mode of utilization of multiple gas sources mainly including ground gasifier gas, UCG gas, blast furnace gas, converter gas, and coke oven gas and the new mode was demonstrated by field tests.According to the field tests, the existing power generation technology can fully adapt to situation of high hydrogen, low calorific value, and gas output fluctuation in the gas production in UCG in multiple-gas-sources power generation; there are large fluctuations and air can serve as a gasifying agent; the gas production of UCG in the mode of both power and methanol based on multiple gas sources has a strict requirement for stability.It was demonstrated by the field tests that the fluctuations in gas production in UCG can be well monitored through a quality control chart method.

View Article: PubMed Central - PubMed

Affiliation: School of Mining Technology, China University of Mining and Technology, Jiangsu, Xuzhou 221116, China ; State Key Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology, Jiangsu, Xuzhou 221116, China ; Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, Jiangsu, Xuzhou 221116, China.

ABSTRACT
To lower stability requirement of gas production in UCG (underground coal gasification), create better space and opportunities of development for UCG, an emerging sunrise industry, in its initial stage, and reduce the emission of blast furnace gas, converter gas, and coke oven gas, this paper, for the first time, puts forward a new mode of utilization of multiple gas sources mainly including ground gasifier gas, UCG gas, blast furnace gas, converter gas, and coke oven gas and the new mode was demonstrated by field tests. According to the field tests, the existing power generation technology can fully adapt to situation of high hydrogen, low calorific value, and gas output fluctuation in the gas production in UCG in multiple-gas-sources power generation; there are large fluctuations and air can serve as a gasifying agent; the gas production of UCG in the mode of both power and methanol based on multiple gas sources has a strict requirement for stability. It was demonstrated by the field tests that the fluctuations in gas production in UCG can be well monitored through a quality control chart method.

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Related in: MedlinePlus

Control chart of standard deviation of hydrogen concentration in the pure oxygen steam test done on July 4, 2010.
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Related In: Results  -  Collection


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fig10: Control chart of standard deviation of hydrogen concentration in the pure oxygen steam test done on July 4, 2010.

Mentions: In the continuous monitoring in the pure oxygen-steam continuous gasification test done on July 4, 2010, the monitoring program automatically drew an average control chart (Figure 9) and a standard deviation control chart (Figure 10) both about the hydrogen concentration according to the measured data and sounded an alarm to remind the researchers of abnormal fluctuations and of a necessity to find out the causes and make adjustments in time.


Gas production strategy of underground coal gasification based on multiple gas sources.

Tianhong D, Zuotang W, Limin Z, Dongdong L - ScientificWorldJournal (2014)

Control chart of standard deviation of hydrogen concentration in the pure oxygen steam test done on July 4, 2010.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4121015&req=5

fig10: Control chart of standard deviation of hydrogen concentration in the pure oxygen steam test done on July 4, 2010.
Mentions: In the continuous monitoring in the pure oxygen-steam continuous gasification test done on July 4, 2010, the monitoring program automatically drew an average control chart (Figure 9) and a standard deviation control chart (Figure 10) both about the hydrogen concentration according to the measured data and sounded an alarm to remind the researchers of abnormal fluctuations and of a necessity to find out the causes and make adjustments in time.

Bottom Line: To lower stability requirement of gas production in UCG (underground coal gasification), create better space and opportunities of development for UCG, an emerging sunrise industry, in its initial stage, and reduce the emission of blast furnace gas, converter gas, and coke oven gas, this paper, for the first time, puts forward a new mode of utilization of multiple gas sources mainly including ground gasifier gas, UCG gas, blast furnace gas, converter gas, and coke oven gas and the new mode was demonstrated by field tests.According to the field tests, the existing power generation technology can fully adapt to situation of high hydrogen, low calorific value, and gas output fluctuation in the gas production in UCG in multiple-gas-sources power generation; there are large fluctuations and air can serve as a gasifying agent; the gas production of UCG in the mode of both power and methanol based on multiple gas sources has a strict requirement for stability.It was demonstrated by the field tests that the fluctuations in gas production in UCG can be well monitored through a quality control chart method.

View Article: PubMed Central - PubMed

Affiliation: School of Mining Technology, China University of Mining and Technology, Jiangsu, Xuzhou 221116, China ; State Key Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology, Jiangsu, Xuzhou 221116, China ; Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, Jiangsu, Xuzhou 221116, China.

ABSTRACT
To lower stability requirement of gas production in UCG (underground coal gasification), create better space and opportunities of development for UCG, an emerging sunrise industry, in its initial stage, and reduce the emission of blast furnace gas, converter gas, and coke oven gas, this paper, for the first time, puts forward a new mode of utilization of multiple gas sources mainly including ground gasifier gas, UCG gas, blast furnace gas, converter gas, and coke oven gas and the new mode was demonstrated by field tests. According to the field tests, the existing power generation technology can fully adapt to situation of high hydrogen, low calorific value, and gas output fluctuation in the gas production in UCG in multiple-gas-sources power generation; there are large fluctuations and air can serve as a gasifying agent; the gas production of UCG in the mode of both power and methanol based on multiple gas sources has a strict requirement for stability. It was demonstrated by the field tests that the fluctuations in gas production in UCG can be well monitored through a quality control chart method.

Show MeSH
Related in: MedlinePlus