Call for Paper to Power-Gen Asia to Thailand

Coal Fire Power Station with clean emission and high quality by product from their waste ©antohendarto 2012.


Coal fired power plant still dominant in every country. Indonesia for example has many coal mining where they have many kind of coal properties. Now the regulation, Indonesia priority to burn coal which low rank but still consider about environmental.

Low rank of coal usually content high moisture and low HGI (hard-grove index). Coal which high moisture need extra temperature to drying inside pulverizer before deliver to boiler furnace and low HGI need extra power of pulverizer to grinding to get coal fineness size.


Low rank of coal also need extra air combustion to get perfect combustion that we can see from carbon content on fly ash (one of the residues generated in coal combustion) which collected in ESP (electrostatic precipitator) hopper. High carbon content at fly ash could make low performance of ESP and the effect of that, the ash will carry over to flue gas de-sulfurization system.

Flu gasde-sulfurization system where handle coal which content more that 1% of sulfur should be use wet scrubber (limestone slurry as the scrubber) and the chemical reaction from sulfur gas and limestone slurry created by product that we call gypsum.

Beside carbon content on fly ash, the perfect combustion can we see from gas emission should be low content of CO and NOx. Too much air combustion will created high NOx and too low air combustion will created high CO.

Our challenge is how to operate coal fired power plant which use low rank of coal, not only refer on availability plant in a year, but also created clean gas emission and high quality of by product (fly ash & gypsum).

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Dear Mr. hendarto,

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Abstract(s) Title: Coal Fire Power Station with clean emission and high quality by product from their waste.

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