The Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process

Underground coal gasification (UCG) is an industrial process that converts coal into product gas (syngas). This technology makes it possible to obtain energy without mining coal and post-processing. The UCG process is considered a safe technology with various advantages over conventional mining tech...

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Autores principales:	Marek Laciak, Milan Durdán, Ján Kačur, Patrik Flegner, Marta Benková
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	underground coal gasification mathematical model explosion CO poisoning mixing of gases control process Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/776485e2d8214556a15cd2baffa50337
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spelling	oai:doaj.org-article:776485e2d8214556a15cd2baffa503372021-11-25T18:50:23ZThe Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process10.3390/pr91119122227-9717https://doaj.org/article/776485e2d8214556a15cd2baffa503372021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1912https://doaj.org/toc/2227-9717Underground coal gasification (UCG) is an industrial process that converts coal into product gas (syngas). This technology makes it possible to obtain energy without mining coal and post-processing. The UCG process is considered a safe technology with various advantages over conventional mining techniques. However, a small amount of potentially dangerous syngas may escape from the UCG cavity, and it is necessary to pay attention to the safety of the process in this respect. This article analyses the impact of a syngas leak from UCG on a possible CO poisoning and explosion hazard in the vulnerable zones. Measured data from experiments and proposed mathematical models were used for the analysis of the UCG process and simulation studies. It is mainly a mathematical model mixing of gases, which evaluated the danger of explosion and CO poisoning in sensitive zones. This model predicts the composition of the syngas mixture with air because this mixture can be dangerous at a certain concentration. Simulation studies focused mainly on CO poisoning in vulnerable areas based on the measured data from laboratory experiments. Simulation studies have shown that the critical value of CO poisoning can achieve with a certain composition of syngas and its escape into vulnerable areas. The results of the studies here indicate a possible hazard. However, by monitoring and control of UCG process, this risk can be minimized. Based on the obtained results, the control of the supply of fresh air to the endangered area during the monitoring of the syngas composition was proposed to prevent the occurrence of possible poisoning.Marek LaciakMilan DurdánJán KačurPatrik FlegnerMarta BenkováMDPI AGarticleunderground coal gasificationmathematical modelexplosionCO poisoningmixing of gasescontrol processChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1912, p 1912 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	underground coal gasification mathematical model explosion CO poisoning mixing of gases control process Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	underground coal gasification mathematical model explosion CO poisoning mixing of gases control process Chemical technology TP1-1185 Chemistry QD1-999 Marek Laciak Milan Durdán Ján Kačur Patrik Flegner Marta Benková The Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process
description	Underground coal gasification (UCG) is an industrial process that converts coal into product gas (syngas). This technology makes it possible to obtain energy without mining coal and post-processing. The UCG process is considered a safe technology with various advantages over conventional mining techniques. However, a small amount of potentially dangerous syngas may escape from the UCG cavity, and it is necessary to pay attention to the safety of the process in this respect. This article analyses the impact of a syngas leak from UCG on a possible CO poisoning and explosion hazard in the vulnerable zones. Measured data from experiments and proposed mathematical models were used for the analysis of the UCG process and simulation studies. It is mainly a mathematical model mixing of gases, which evaluated the danger of explosion and CO poisoning in sensitive zones. This model predicts the composition of the syngas mixture with air because this mixture can be dangerous at a certain concentration. Simulation studies focused mainly on CO poisoning in vulnerable areas based on the measured data from laboratory experiments. Simulation studies have shown that the critical value of CO poisoning can achieve with a certain composition of syngas and its escape into vulnerable areas. The results of the studies here indicate a possible hazard. However, by monitoring and control of UCG process, this risk can be minimized. Based on the obtained results, the control of the supply of fresh air to the endangered area during the monitoring of the syngas composition was proposed to prevent the occurrence of possible poisoning.
format	article
author	Marek Laciak Milan Durdán Ján Kačur Patrik Flegner Marta Benková
author_facet	Marek Laciak Milan Durdán Ján Kačur Patrik Flegner Marta Benková
author_sort	Marek Laciak
title	The Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process
title_short	The Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process
title_full	The Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process
title_fullStr	The Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process
title_full_unstemmed	The Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process
title_sort	prediction of possibilities of co poisoning and explosion during syngas leakage in the ucg process
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/776485e2d8214556a15cd2baffa50337
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The Prediction of Possibilities of CO Poisoning and Explosion during Syngas Leakage in the UCG Process

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