Ecological advantages of underground coal gasification in the Republic of Tuva

2018 ◽  
Vol 22 (10) ◽  
pp. 60-65
Author(s):  
M.P. Kulikova ◽  
G.F. Balakina
Keyword(s):  
Coal Gasification ◽  
Underground Coal Gasification ◽  
Coal Deposit ◽  
Thermal Generation ◽  
Hydrocarbon Gas ◽  
Underground Fire ◽  
The Republic ◽  
Product Pipeline ◽  
Gas Supply

Based on the analysis of the current situation with gas supply in the region (low gas supply of the population, lack of thermal generation based on gas), possible ways of solving the problem of providing gas for housing, industrial and communal facilities in the Republic of Tuva are being considered. The results of a study of the possibilities of using liquefied hydrocarbon gas, gas extracted from coal mining in the Ulug-Khem basin, gas from the underground fire of the Erbeksky coal deposit are presented. The needs for gas of all categories of consumers are estimated: the population, thermal generation enterprises, social and household spheres in the region. Prospects for gas supply are set out in connection with the solution of environmental problems: the reduction of air pollution in cities and towns. The directions of the solution of the problem of gasification of Tuva in the long-term prospect are substantiated, options for transferring the economy of the republic to the main gas supply, construction of the oil product pipeline are considered.

scholarly journals PERSPECTIVE DIRECTIONS OF GASIFICATION OF THE REPUBLIC OF TUVA

2020 ◽  
pp. 64-70
Author(s):  
M. P. Kulikova ◽  
G. F. Balakina
Keyword(s):  
Heat Generation ◽  
Gas Production ◽  
Rural Settlements ◽  
Social Sphere ◽  
Current Trends ◽  
Coal Deposits ◽  
Underground Fire ◽  
The Republic ◽  
Product Pipeline ◽  
Gas Supply

Based on the analysis of the current situatim with gas supply in the Republic of Tuva (low gas supply to the population, lask of gas based heat generation), the article duscusses possible ways to solve the problem of gas supply to cites, towns and rural settlements of the republic in line with current trends in the development of gasification processes in the regions of Russia. The gas requirements of all categories of consumers: the population, heat generation enterprises, social and household spheres in the region are estimated. The prospects for gas supply in the centext of solving envitonmentae problems are to reduce air pollution in cities and towns. The directions of solving the problem of gasification of Tuva in the long term are substantiated, also considered option for transferring the economy of republic to the main gas supply, construction of an oil product pipeline are considered. The following effective ways to increase the level of gasification in Tuva are identified: the realization of the potential for gas production from coal deposits, the use of thermal energy from an underground fire and the development of autonomous gasification, which can be carried out during stage I of gasification. At the second stage, it is possible to transfer the economy and social sphere to the main gas supply though the construction of Tuva gas pipeline or the oil product pipeline.

A high performance ceria-based solid oxide fuel cell operating on underground coal gasification gas

RSC Advances ◽  
2015 ◽  
Vol 5 (106) ◽  
pp. 87477-87483 ◽  
Author(s):  
Jie Xiong ◽  
Chengran Jiao ◽  
Minfang Han ◽  
Wentao Yi ◽  
Jie Ma ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Coal Gasification ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Underground Coal Gasification ◽  
Long Term Stability

A NiO-GDC‖GDC‖Ba0.9Co0.7Fe0.2Nb0.1O3−δ cell fed with UCG gas demonstrated exceptional electrochemical performance and desirable long term stability.

Sinn Féin and the IRA

2018 ◽  
Author(s):  
Mathew Whiting
Keyword(s):  
Northern Ireland ◽  
Political Institutions ◽  
Sinn Fein ◽  
Peace Processes ◽  
British Rule ◽  
Irish Republicanism ◽  
The Republic ◽  
British State ◽  
State Responses

When Sinn Féin and the IRA emerged in Northern Ireland in 1969 they used a combination of revolutionary politics and violence to an effort to overthrow British rule. Today, the IRA is in a state of ‘retirement’, violence is a tactic of the past, and Sinn Féin is a co-ruler of Northern Ireland and an ever growing political player in the Republic of Ireland. This is one of the most startling transformations of a radical violent movement into a peaceful political one in recent times. So what exactly changed within Irish republicanism, what remains the same, and, crucially, what caused these changes? Where existing studies explain the decision to end violence as the product of stalemate or strategic interplay with the British state, this book draws on a wealth of archival material and interviews to argue that moderation was a long-term process of increasing inclusion and contact with political institutions, which gradually extracted moderate concessions from republicanism. Crucially, these concessions did not necessitate republicans forsaking their long-term ethno-national goals. The book also considers the wider implications of Irish republicanism for other cases of separatist conflict, and has significance for the future study of state responses to violent separatism and of comparative peace processes.

Cold Flow Simulation in Underground Coal Gasification (UCG) Cavities

2014 ◽  
Vol 1 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Dipankar Chatterjee ◽  
◽  
Satish Gupta ◽  
Chebolu Aravind ◽  
Rakesh Roshan
Keyword(s):  
Coal Gasification ◽  
Flow Simulation ◽  
Underground Coal Gasification ◽  
Cold Flow

scholarly journals Changes in properties of tar obtained during underground coal gasification process

2021 ◽  
Author(s):  
Marian Wiatowski ◽  
Roksana Muzyka ◽  
Krzysztof Kapusta ◽  
Maciej Chrubasik
Keyword(s):  
Coal Gasification ◽  
Coal Tar ◽  
Liquid Product ◽  
Coke Oven ◽  
Underground Coal Gasification ◽  
Gasification Process ◽  
Dominant Component ◽  
Process Gas ◽  
High Volatility ◽  
Product Separator

AbstractIn this study, the composition of tars collected during a six-day underground coal gasification (UCG) test at the experimental mine ‘Barbara’ in Poland in 2013 was examined. During the test, tar samples were taken every day from the liquid product separator and analysed by the methods used for testing properties of typical coke oven (coal) tar. The obtained results were compared with each other and with the data for coal tar. As gasification progressed, a decreasing trend in the water content and an increasing trend in the ash content were observed. The tars tested were characterized by large changes in the residue after coking and content of parts insoluble in toluene and by smaller fluctuations in the content of parts insoluble in quinoline. All tested samples were characterized by very high distillation losses, while for samples starting from the third day of gasification, a clear decrease in losses was visible. A chromatographic analysis showed that there were no major differences in composition between the tested tars and that none of the tar had a dominant component such as naphthalene in coal tar. The content of polycyclic aromatic hydrocarbons (PAHs) in UCG tars is several times lower than that in coal tar. No light monoaromatic hydrocarbons (benzene, toluene, ethylbenzene and xylenes—BTEX) were found in the analysed tars, which results from the fact that these compounds, due to their high volatility, did not separate from the process gas in the liquid product separator.

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