Abstract
A flat-flame pulverized coal gasification technology is presented and its test results on a 3 t/d gasification test facility are discussed. The test results show that the performance of flat-flame gasification technology is better than the traditional top-placed single-burner technologies, and the test facility is running stably during the test periods. It is revealed that, the flat-flame burner enables higher turbulent intensity and enhances the turbulent mixing between coal particles and oxidant. The overall gasification reaction rate is increased by abovementioned effects. When the mass ratio of O2/coal is 0.8, the carbon conversion, volume fraction of efficient syngas and cold gas efficiency of flat-flame burner were respectively 96.7%, 88.6% and 82.1%, which are completely better than single-burner gasification. Preliminary test results and analysis validates the technical feasibility of flat-flame gasification technology and it is ready for scale-up for industry-scale demonstrations.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Abraham Z, Luzzatio K, Tamir A (2007) Application of free impinging streams to the combustion of gas and pulverized coal. Combust Sci Technol 60(1):31–44
An H, Yu J, Fan J et al (2017a) Experiment study on entrained flow gasification technology with dry slag by second-stage water supply. Powder Technol 306:10–16
An H, Yu J, Jiang Y et al (2017b) Kinetics of steam and CO2 gasification with high ash fusion temperature coal char under elevated pressure. Energy Sour Part A: Recov Util Environ Effects 39(24):2188–2194
Brown BW, Smoot LD, Hedman PO (1986) Effect of coal type on entrained gasification. Fuel 65(5):673–678
Chao L, Dai Z, Li W et al (2012) 3d numerical study of particle flow behavior in the impinging zone of an opposed multi-burner gasifier. Powder Technol 225
Cavaliere A, Joannon MD (2004) Mild combustion. Prog Energy Combust Sci 30(4):329–366
Dai B, Hoadley A, Zhang L (2017) Characteristics of high temperature C-CO2 gasification reactivity of Victorian brown coal char and its blends with high ash fusion temperature bituminous coal. Fuel 202:352–356
Fang X, Gong Z, Feng Z et al (2016) Research on flow field of gasifier with seven nozzles based on PIV technology. Clean Coal Technol 22(6):34–39
Fang X, Guan Q, Gong Z et al (2017) Construction and commissioning of high pressure dense phase conveying device for pulverized coal. Coal Process Compr Util 2:68–72
Gong X, Lu W, Guo X et al (2014) Pilot-scale comparison investigation of different entrained-flow gasification technologies and prediction on industrial-scale gasification performance. Fuel 129:37–44
Higman C, Burgt VD et al (2007) Gasification, 2nd ed
Irfan MF, Usman MR, Kusakabe K (2011) Coal gasification in Co atmosphere and its kinetics since 1948: a brief review. Energy 36(1):12–40
Keller F, Küster F, Meyer B (2018) Determination of coal gasification kinetics from integral drop tube furnace experiments with steam and CO2. Fuel
Kong L, Bai J, Bai Z et al (2014) Improvement of ash flow properties of low-rank coal for entrained flow gasifier. Fuel 120:122–129
Liu M, Shen Z, Liang Q et al (2019) Experimental studies on two dimensional particle swarm gasification of different coal chars and petroleum coke at high temperature. Fuel 241:973–984
Tu Y, Liu H, Chen S et al (2015) Numerical study of combustion characteristics for pulverized coal under oxy-mild operation. Fuel Process Technol 135:80–90
Ünlü A, Kayahan U, Argönül A et al (2017) Pilot scale entrained flow gasification of Turkish lignites. J Energy Inst 90(1):159–165
Wu Y, Zhang JS, Yue GX et al (2008) Analysis of the gasification performance of a staged entrained flow gasifier by presumed Pdf model. Proc CSEE 28(26):29–34
Wünning J, Wünning J (1997) Flameless oxidation to reduce thermal no-formation. Prog Energy Combust Sci 23(1):81–94
Xu S, Ren Y, Wang B et al (2014) Development of a novel 2-stage entrained flow coal dry powder gasifier. Appl Energy 113:318–323
Acknowledgements
This work was supported by the National Energy Group Science and Technology Innovation Project (GJNY-18-72), National Key Research and Development Program (2017YFB0602603) and Beijing Science and Technology Planning Project (Z181100005118006).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 Tsinghua University Press.
About this paper
Cite this paper
An, H.Q. et al. (2022). Experimental Study of the Flat-Flame Pulverized Coal Gasification Technology. In: Lyu, J., Li, S. (eds) Clean Coal and Sustainable Energy. ISCC 2019. Environmental Science and Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-1657-0_85
Download citation
DOI: https://doi.org/10.1007/978-981-16-1657-0_85
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-16-1656-3
Online ISBN: 978-981-16-1657-0
eBook Packages: EnergyEnergy (R0)