impact of coal gasification on ennvironment

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Coal gasification: Impact of government initiative

The gasification process has a lesser impact on the environment as compared to the coal combustion process. Coal gas as fuel . Syngas from gasification can be the building block for a variety of high-value end-use products, other than energy generation, gasification of coal also can create immense opportunities for other sectors, including ...

5.2.5 Gasifiers and Impact of Coal Rank and Coal ...

Feedstock coal rank usually has little effect on the environmental impact of a gasification system. Sulfur, for example, can vary from 0.5 to 8 percent in coal, and while different technologies may be needed to handle the entire range, the resulting emissions would be quite similar and more based on environmental regulations.

Environmental Effects of Coal Gasification ~ Coal Energy

Environmental Effects of Coal Gasification: From its original development until the wide-scale adoption of natural gas, more than 50,000 manufactured gas plants were in existence in the United States alone. The process of manufacturing gas usually produced a number of by-products that contaminated the soil and groundwater in and around the ...

Underground Coal GasiÞcation Environmental Risks and …

of underground coal resources could be utilized by underground coal gasi"cation (UCG). It is estimated that these coal re-serves could provide electricity in Alberta for more than 150,000 years at current usage; however, coal power's heavy envi-ronmental impact including both mercury and greenhouse gas emissions are limiting

Coal Gasification – University of Kentucky Center for ...

How can we reduce the environmental impact of coal gasification? Improving Coal Gasification Technology. While the vast majority of our coal is burned at conventional coal-fired power plants, coal can also be turned into a gas for conversion into electricity, hydrogen, and other energy products. Coal gasification is a thermo-chemical process in ...

Coal gasification: The clean energy of the future? - BBC News

Coal gasification is one of the more water-intensive forms of energy production, and large areas of China, particularly in the western parts of the country that would host new gasification …

Environmental Impacts of Coal Utilization on the Ecosystem

ENVIRONMENTAL IMPACTS OF COAL UTILIZATION ON THE ECOSYSTEM* D. Vamvuka** 1. INTRODUCTION Coal is being substituted for oil in a range of industrial activities and has been projected to increase its share of OECD (Organization for Economic Co-operation and Development) primary energy requirements, from 21% to 31%, by the end of the

Technology and environmental impact of coal gasification ...

@article{osti_7231686, title = {Technology and environmental impact of coal gasification processes}, author = {Fleming, D K}, abstractNote = {Exponentially increasing requirements for new energy in the U. S. can be anticipated. Our energy reserves, however, are limited. Even with maximum expansion of nuclear power generation and other energy from non-conventional sources, we must rely heavily ...

Environmental Issues in Underground Coal Gasification

coal seam groundwater • Upward migration of contaminated groundwater to potable aquifers due to: – Thermally-driven flow away from burn chamber – Buoyancy effects from fluid density gradients resulting from changes in dissolved solids and temperature – Changes in permeability of reservoir rock due to UCG. Environmental Issues In UCG

Environmental impact and techno-economic analysis of the ...

Coal gasification, the technology for high-efficient utilization of coal, has been widely used in China. However, it suffers from high CO 2 emissions problem due to the carbon-rich character of coal. To reduce CO 2 emissions, different CO 2 capture technologies are developed and integrated into the coal gasification based processes. However, involving CO 2 capture would result in energetic …

MAJOR ENVIRONMENTAL ASPECTS OF GASIFICATION …

This project was sponsored by the U.S. DOE's Gasification Technologies Program at the National Energy Technology Laboratory (NETL) with participation of the Gasification Technologies Council, a trade association whose member companies and organizations are involved in all aspects of developing, commercializing and using gasification technologies.

Technology and environmental impact of coal gasification ...

@article{osti_7231686, title = {Technology and environmental impact of coal gasification processes}, author = {Fleming, D K}, abstractNote = {Exponentially increasing requirements for new energy in the U. S. can be anticipated. Our energy reserves, however, are limited. Even with maximum expansion of nuclear power generation and other energy from non-conventional sources, we must rely …

Coal: Social, environmental and economic concerns

Coal: social, environmental and economic concerns 14 Economic concerns • Cheapest source of energy • Coal pollution costs the EU €43 billion each year (health impacts from especially air pollution) • Carbon pricing and regulation are imperative to …

Environmental impacts of underground coal gasification ...

@article{osti_7127959, title = {Environmental impacts of underground coal gasification}, author = {Murray, W A}, abstractNote = {Investigations of underground coal gasification (UCG) have been actively pursued by the U.S. Department of Energy since the early 1970s; the Lawrence Livermore National Laboratory (LLNL) conducted its first field experiment in 1976.

Environmental concerns of underground coal gasification ...

Underground coal gasification has some environmental benefits relative to conventional mining including no discharge of tailings, reduced sulfur emissions and reduced discharge of ash, mercury and tar and the additional benefits of CCS [4]. Atmospheric CO 2 is a major greenhouse gas concern in fossil fuel processes.

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