Study of Electrophysical Intrastratal Gasification at Different Coal Heating Rate

Kirill Larionov,Stanislav Jankovskij,Il'Ja Korjashov,Andrej Zenkov,Vladimir Gubin,P.A Strizhak,G.V Kuznetsov,V.E Gubin,A.O Zhdanova

doi:10.1051/matecconf/20153701030

Kirill Larionov, Stanislav Jankovskij + Show 7 more

Open Access

https://doi.org/10.1051/matecconf/20153701030

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Abstract

Experimental instrumental multi-method research, electrophysical ihtrastratal gasification of antracite with further definition of quantitative syngas composition and its combustion heat design at different heating rates. It was stated that concentration of carbon dioxide CO 2 , hydrogen H 2 decreases with heating rate increase in received syngas, and there is rise of carbon monoxide CO concentration. The results of the research showed that heating rate increase leads to a small rise of combustion heat as decrease of H 2 and CH 4 concentration is compensated with increase of CO.

Highlights

It was stated that concentration of carbon dioxide СО2, hydrogen H2 decreases with heating rate increase in received syngas, and there is rise of carbon monoxide СО concentration
According to the results presented in pic. 4 we can conclude that coal heating rate significantly influences the composition of received syngas and its combustion heat
01030-p.4 above-described changes there is increase of carbon monoxide СО2, which value compensates concentration of burning components and increases combustion heat index received from syngas

Summary

Introduction

There are intensive scientific researches and industrial experimental works on coal gasification technology development in many countries around the world because of constant growth of prices [1] and decrease of natural gas deposits [2], and high finding costs on new deposits, and the received products are able to fully change natural gas [4].It is known [5] that one of the most perspective technologies of receiving gas from coal is underground gasification which is connected with physical and chemical processes in unmined coal layers the result of which is syngas [6] having good thermo physical properties for energetic and technological use [7,8].Compared to natural gas received by method of underground gasification syngas contains the whole range of additional components: benzene hydrocarbon, coal-tar, phenol, methane, olefin, acetylene [9]. There are intensive scientific researches and industrial experimental works on coal gasification technology development in many countries around the world because of constant growth of prices [1] and decrease of natural gas deposits [2], and high finding costs on new deposits, and the received products are able to fully change natural gas [4] It is known [5] that one of the most perspective technologies of receiving gas from coal is underground gasification which is connected with physical and chemical processes in unmined coal layers the result of which is syngas [6] having good thermo physical properties for energetic and technological use [7,8]. Cost value of received syngas is lower than the cost value of natural one [11]

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Conclusion