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  • 3R CLEAN COAL - MULTI FUEL: pretreatment of coal by pyrolysis for preventive removal of hazardous (S, Cl, Hg) air pollutants and integrated use of renewable at solid fuel power plants (<300 MW)

3R CLEAN COAL - MULTI FUEL: pretreatment of coal by pyrolysis for preventive removal of hazardous (S, Cl, Hg) air pollutants and integrated use of renewable at solid fuel power plants (<300 MW)

The 3R Clean Multi Fuel Provides pretreatment of coal and lignite by pyrolysis for preventive removal of hazardous air pollutants (organic S, Cl, Hg) and flexible integration of the renewable biomass energy and fossil fuel feed, for safe and long term clean energy solution at solid fuel power gen up to 300MW. Hazardous air pollutants are removed from the coal prior burning by low temperature carbonization "LTC" and feed is combined with renewable multi fuels. The LTC is an horizontally arranged indirectly heated rotary kiln, for partial gas out of the coal and removal of volatile components in downscaled reductive environment. Gas vapour post burned, heat is recovered and off-gas is cleansed in wet scrubber, whereas clean gypsum is produced and Hg is separately recovered. The solid material Clean Coal is utilized as clean fuel, alternative in combination with waste vegetable oil burning as add-on fuel.

Results:

Sustainable reuse of solid fuels by pre-treatment: achievement of continued and extended environmental friendly reuse of solid fuels by reductive thermal decomposition pre-treatment of feeding, - for preparation of clean solid fuels and prevention of high toxic element load through the system and at the "end of pipe"-prior introduction to conventional heat and electricity power generation systems.

Clean fuel provides clean burning: environmentally clean burning resulting significant emission reduction at the "end of the pipe". By reduced pollution content of fuels and improved efficiency of energy production and meet Kyoto Protocol targets.

Multi fuel applications, such as renewable-biomass, carboniferous solid waste and coal, increased feed flexibility.

Add-on direct link and integration opportunity to existing and new conventional solid fuel power plants for environmental and burning efficiency upgrade.

Improved solid fuel burning efficiency, clean and homogenized fuel provide improved burning characteristics and lower corrosion effects in the boiler.

Cost reduction, by providing clean fuel and pretreatment separation of target pollutants, such as sulfur, the total cost efficiency of the operation at the end will be increased.

Related information

Reported by

TERRA HUMANA Clean Technology Engineering Ltd.
Széchenyi 59
1222 Budapest
Hungary
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