INTEGRATED GASIFICATION CYCLES FOR POWER GENERATION USING COMBINED MAGHARA COAL-RICE STRAW FEEDSTOCK
Amir Hegazy Mohamed;
Abstract
To date, the production of electricity in most countries is based mainly on oil products mainly diesel, natural gas and coal. It is known that oil and gas reserves are limited to 50-60 years[1]. On the other hand, coal reserves are proven for 150 years. Biomass is a renewable energy source that could be integrated and used as fuel for power generation [1], providing for a secure and sustainable energy supply. It also provides for the possibility of decreasing greenhouse gases by carbon capturing techniques. Converting coal into liquid fuels and chemicals and its direct use for generating electricity is also a proven technology.
There are two methods for power generation from coal; direct burning, or its conversion into syngas. Direct burning of coal has been used for decades, it is based on converting the heat energy into mechanical energy. However, this method has many drawbacks, for instance, it causes air pollution where burning coal causes smog, soot, acid rain, global warming, and toxic air emissions. Moreover, it generates toxic wastes, sludge, and ash. Converting coal into syngas for electricity generation is performed in a process known as Integrated Gasification Combined Cycle (IGCC). It is a recent approach based on converting stored chemical energy within the coal into mechanical energy. It has many advantages over direct burning of coal; it is considered as a clean source of energy with less pollutant emissions, it has high conversion efficiency, and it can be used directly in the established infrastructure as a substitute for natural gas in power stations. Coal and biomass are converted into syngas by thermo-chemical gasification and successive gas cleaning. It was found that increasing the H2/CO in syngas, causes the increase in power efficiency, this can be achieved by effective carbon dioxide removal. Operational IGCC plants are built worldwide for example the Baggenum plant in Netherlands with a capacity of 253 MW, Tampa Electric Polk power station in the United States with a capacity of 250 MW, and many other po
There are two methods for power generation from coal; direct burning, or its conversion into syngas. Direct burning of coal has been used for decades, it is based on converting the heat energy into mechanical energy. However, this method has many drawbacks, for instance, it causes air pollution where burning coal causes smog, soot, acid rain, global warming, and toxic air emissions. Moreover, it generates toxic wastes, sludge, and ash. Converting coal into syngas for electricity generation is performed in a process known as Integrated Gasification Combined Cycle (IGCC). It is a recent approach based on converting stored chemical energy within the coal into mechanical energy. It has many advantages over direct burning of coal; it is considered as a clean source of energy with less pollutant emissions, it has high conversion efficiency, and it can be used directly in the established infrastructure as a substitute for natural gas in power stations. Coal and biomass are converted into syngas by thermo-chemical gasification and successive gas cleaning. It was found that increasing the H2/CO in syngas, causes the increase in power efficiency, this can be achieved by effective carbon dioxide removal. Operational IGCC plants are built worldwide for example the Baggenum plant in Netherlands with a capacity of 253 MW, Tampa Electric Polk power station in the United States with a capacity of 250 MW, and many other po
Other data
| Title | INTEGRATED GASIFICATION CYCLES FOR POWER GENERATION USING COMBINED MAGHARA COAL-RICE STRAW FEEDSTOCK | Authors | Amir Hegazy Mohamed | Issue Date | 2016 |
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