Assessing ventilation air methane (VAM) mitigation and utilization opportunities: A case study at Kozlu Mine, Turkey

Barış, Kemal

doi:10.1016/j.esd.2012.09.002

Cited by 35 publications

(16 citation statements)

References 3 publications

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“…[4] In general, mitigationa nd utilization technologies of VA M are classified into two categories:a ncillary uses and principal uses. [7][8][9] Fort he ancillary uses,t he mine VA is used as as upplemental fuel, added to input air of variousc ombustion systems.O nly af raction of VAMg as can be used with this technique;t he remainder of the methane gas is released to the atmosphere.P rincipally,V AM gas is utilized as the primary fuel and oxidized in ar eactor primarily with the aim of reducingnet GHG emissions,aswell as producing heat or electricity.S election of one of these options to provide the best solution for am ine dependso ns everalf actors,i ncluding 1) highestr eturno finvestment;2 )governmentalp olicy,s uch as carbon credit for only VAMo rf or all mine methane; 3) site conditions on the mine site;a nd d) mine safety requirements. [7] 3.1.…”

Section: Technology Options For Utilization and Mitigation Of Vammentioning

confidence: 99%

Development of Combustion Technology for Methane Emitted from Coal‐Mine Ventilation Air Systems

2017

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Fugitive gas emissions from coal mining are widely known to be significant contributors to the emission of alkanes, mainly methane, to the environment. Utilization of coal‐mine ventilation air methane (VAM) is a crucial mission to minimize methane emission in the atmosphere. This paper reviews current technology for mitigation and utilization of methane emissions from coal mining. Challenges and opportunities for each technology are discussed together with their benefits/disadvantages. Catalytic combustion technology is recommended as the best option due to the low and variable concentration of methane in coal‐mine ventilation air, as well as its high volumetric flow. Herein, current developments in flameless combustion are discussed in detail with a few highlights on palladium‐based catalyst development. The remaining uncertainties and obstacles in the development of palladium‐based catalysts for VAM are also discussed. This paper highlights a few important practical aspects that necessitate further detailed investigation, such as catalyst deactivation phenomena, the stability of the catalyst under humid conditions, and the effect of coal dust on catalytic activity and stability. Notably, a pressure decrease, heat recovery/self‐sustaining, and long‐term deactivation are key for the successful development of VAM catalytic combustors.

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Section: Technology Options For Utilization and Mitigation Of Vammentioning

confidence: 99%

Development of Combustion Technology for Methane Emitted from Coal‐Mine Ventilation Air Systems

2017

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“…However, the spread of the VAM mitigation and utilization project also faces many challenges, such as technology and operation costs [21]. And, there is no other commercial VAM mitigation demonstration running in China.…”

Section: Introductionmentioning

confidence: 99%

Demonstration and its validation for ventilation air methane (VAM) thermal oxidation and energy recovery project

Lin

Yuan

et al. 2015

Applied Thermal Engineering

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“…In the underground coal mining operation environment, methane gas is one of the most hazardous emitted gases for it is highly explosive under certain conditions inside a laneway of the coal mine, which also contributes to global warming [1][2][3]. Numerous reported methane-related incidents and accidents with fatalities show that appropriate methane gas control and the related progressing in mine safety still remains a longstanding challenge and an emerging issue [4,5].…”

Section: Introductionmentioning

confidence: 99%

A Case Study of an Optimized Intermittent Ventilation Strategy Based on CFD Modeling and the Concept of FCT

2019

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With the increasing operation costs and implementation of carbon tax in the underground coal mining systems, a cost-effective ventilation system with well methane removal efficiency becomes highly required. Since the intermittent ventilation provides a novel approach in energy saving, there still exists some scientific issues. This paper adopts the design concept of frequency conversion technology (FCT) to the ventilation pattern design for the first time, and an optimized intermittent ventilation strategy is proposed. Specifically, a real excavation laneway of a coal mine in China is established as the physical model, and computational fluid dynamic (CFD) approaches are utilized to investigate the spatiotemporal characteristics of airflow behavior and methane distribution. Plus, the period of intermittency and appropriate air velocity are scientifically defined based on the conception of FCT by conducting the parametric studies. Therefore, an optimized case is brought out with well methane removal efficiency and remarkable energy reduction of 39.2% in a ventilation period. Furthermore, the simulation result is verified to be reliable by comparing with field measurements. The result demonstrates that a balance of significant energy saving and the methane removal requirement based on the concept of FTC is possible, which could in turn provide good operational support for FTC.

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Assessing ventilation air methane (VAM) mitigation and utilization opportunities: A case study at Kozlu Mine, Turkey

Cited by 35 publications

References 3 publications

Development of Combustion Technology for Methane Emitted from Coal‐Mine Ventilation Air Systems

Development of Combustion Technology for Methane Emitted from Coal‐Mine Ventilation Air Systems

Demonstration and its validation for ventilation air methane (VAM) thermal oxidation and energy recovery project

A Case Study of an Optimized Intermittent Ventilation Strategy Based on CFD Modeling and the Concept of FCT

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