Predicting the performance of system for the co-production of Fischer-Tropsch synthetic. liquid and power from coal

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	Predicting the performance of system for the co-production of Fischer-Tropsch synthetic. liquid and power from coal
	Wang, Xun; Xiao, Yunhan; Xu, Song; Guo, Zhigang
刊名	JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME
	2008
卷号	130 期号:1
关键词	co-production performance prediction FT
英文摘要	A co-production system based on Fischer-Tropsch (FT) synthesis reactor and gas turbine was simulated and analyzed. Syngas from entrained bed coal gasification was used as feedstock of the low-temperature slurry phase Fischer-Tropsch reactor. Raw synthetic liquid produced was fractioned and upgraded to diesel, gasoline, and liquid petrol gas (LPG). Tail gas composed of unconverted syngas and FT light components was fed to the gas turbine. Supplemental fuel (NG, or refinery mine gas) might be necessary, which was dependent on gas turbine capacity expander through flow capacity, etc. FT yield information was important to the simulation of this co-production system. A correlation model based on Mobil's two step pilot plant was applied. This model proposed triple chain-length-dependent chain growth factors and set up correlations among reaction temperatures with wax yield, methane yield, and C-2-C-22 paraffin and olefin yields. Oxygenates in the hydrocarbon, water, and vapor phases were also correlated with methane yield. It was suitable for syngas, iron catalyst, and slurry bed. We can show the effect of temperature on the products' selectivity and distribution. User models that can predict product yields and cooperate with other units were embedded into Aspen plus simulation. Performance prediction of syngas fired gas turbine was the other key of this system. The increase in mass flow through the turbine affects the match between compressor and turbine operating conditions. The calculation was carried out by GS software developed by Politecnico Di Milano and Princeton University. The simulated performance assumed that the expander operates under choked conditions and turbine inlet temperature equals the NG fired gas turbine. A "F" technology gas turbine was selected to generate power Various cases were investigated to match the FT synthesis island, power island, and gasification island in co-production systems. Effects of CO2 removal/LPG recovery, co-firing, and CH4 content variation were studied. Simulation results indicated that more than 50% of input energy was converted to electricity and FT products. Total yield of gasoline, diesel, and LPG was 136-155 g/N m(3) (CO+H-2). At coal feed of 21.9 kg/s, net electricity exported to the grid was higher than 100 MW. Total production of diesel and gasoline (and LPG) was 118,000 t (134,000 t)/year. Under the economic analysis conditions assumed in this paper the co-production system was economically feasible. The after tax profits can research 17 million euro. Payback times ranged from 6 to 7 years.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Mechanical
研究领域[WOS]	Engineering
收录类别	ISTP ; SCI
语种	英语
WOS记录号	WOS:000253484200004
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106382]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xun,Xiao, Yunhan,Xu, Song,et al. Predicting the performance of system for the co-production of Fischer-Tropsch synthetic. liquid and power from coal[J]. JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME,2008,130(1).
APA	Wang, Xun,Xiao, Yunhan,Xu, Song,&Guo, Zhigang.(2008).Predicting the performance of system for the co-production of Fischer-Tropsch synthetic. liquid and power from coal.JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME,130(1).
MLA	Wang, Xun,et al."Predicting the performance of system for the co-production of Fischer-Tropsch synthetic. liquid and power from coal".JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME 130.1(2008).