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Grass makes environmentally friendly biofuel

pellets with various mixes of grasses and the BTUs (British Thermal Units) produced per pound. He has found that grass pellets can be burned without emissions problems, and they have 96 percent of the BTUs of wood pellets. He also notes that grass produces more ash than wood -- meaning more frequent cleaning -- of stoves. Currently, he is testing the burning of pellets made from grasses, such as timothy and orchard grass, as well as weeds, such as goldenrod, in pellet stoves at Cornell's Mt. Pleasant Research Farm. This demonstration project is funded by Cornell's Agricultural Experiment Station.

Cherney points out that grass biofuel pellets are much better for the environment because they emit up to 90 percent less greenhouse gases than oil, coal and natural gas do. Furthermore, he says, grass is perennial, does not require fertilization and can be grown on marginal farmland.

"Any mixture of grasses can be used, cut in mid- to late summer, left in the field to leach out minerals, then baled and pelleted. Drying of the hay is not required for pelleting, making the cost of processing less than with wood pelleting," says Cherney. "The bottom line is that pelletized grass has the potential to be a major affordable, unsubsidized fuel source capable of meeting home and small business heating requirements at less cost than all available alternatives."


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Source:Cornell University News Service


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