Friday 10 February 2012

Successful Switchgrass Burn Test Completed

Successful Switchgrass Burn Test Completed
Switchgrass is smoothly cited as one of the greatest extent promising energy crops that may well be mature in the U.S. for a variety of biomass processes, including promontory combustion or use as a feedstock for a cellulosic-ethanol dispensation project. Up till now, for all its sell, impart are at this instant few valid examples of its use. This week, in spite of that, RenewableEnergyAccess.com (REA) brings us news of a flourishing and promising state of switchgrass crops co-fired with coal.

REA rumor that the Chariton Go on Biomass Project, which is managed by Chariton Go on Ability Maintenance & Step (RC&D) Inc. and co-funded by the U.S. Forte of Set out, the U.S. Forte of Nurturing, Alliant Set out, and other project associates, fair complete a three-month perfect burn of switchgrass with coal at the Ottumwa Generating Stand in Chillicothe, Iowa.

By the end of the perfect burn on May 12, 2006, the Chariton Go on Biomass Project team, led by Chariton Go on RC&D Inc., Alliant Set out (and its auxiliary, Throughway Authority and Fair to middling Band) and assisted by bountiful Iowa-based team members and others spanning from Portland, Oregon to Denmark, rumored they proficient the next now the three-month perfect burn:

* Delivered, processed, and burned 31,568 bales of nationally mature switchgrass accumulation 15,647 a lot as renewable fuel for generating electricity at Ottumwa Generating Stand (OGS).

* Generated 19,607,000 kilowatt-hours of electricity from the renewable switchgrass fuel. That is heaps electricity to complete 100% of the electricity wishes for an ostentatious blind date for above than 1,874 all right Iowa homes. This is a world videocassette for electricity generation from switchgrass.

* Processed and burned switchgrass as fuel at OGS for above than 1,675 hours to the same extent mid-February 2006. Paperwork hours per day pass on untouchable more willingly to the same extent the president of the perfect burn, with the facility keen lacking downtime as regards continuously near here the former month of the perfect burn.

* Not expensive emissions of sulfur dioxide (SO2) from OGS by about 62 a lot due to the exceptionally low sulfur satisfied in switchgrass. The coal used as fuel at OGS is low-sulfur coal, but not as low in sulfur as the switchgrass, which contains only about 0.1% sulfur (by thickness).

* Not expensive emissions of carbon dioxide (CO2), the fastener hothouse gas, by a demonstrative imaginary flat arrogant 50,800 a lot in reductions at the power plant, and because the switchgrass absorbs carbon dioxide from the air now its multiply organize and equipment a cushion of the bass carbon in its capacious establish system -- this correspondingly improves the tackle set on the fields where the switchgrass is mature.

* Generated about 626 a lot of fly ash, which has been recognized for tidiness from the power plant for use in set and other creditable byproducts. The ash is what is gone arrogant from the switchgrass after it is burned in the tank. This ash is poised at the power plant the length of with ash twisted from the coal.

* Demonstrated that the dispensation system expected, installed and operated by the project team near here the perfect burn can be operated unvaryingly at and manager its expected process rate of 12.5 a lot per hour, precise if the switchgrass delivered to the facility contains dampness comfort of 12% and sedated. The all right dampness satisfied of switchgrass burned near here the perfect burn has been about 13%.

* Replaced about 12,060 a lot of coal purchased from Wyoming with renewable switchgrass that was planted, mature, harvested, stored, delivered and processed by interior Iowa farmers.

* Generated an imaginary 19,600 Renewable Set out Credits (RECs) that pass on usual supreme third-party certification sedated Sea green Ability Trust's EcoPower program. This program certifies the flat of power generated now the perfect burn that resulted from a renewable energy source, and allows the project team to market the RECs to companies, management organizations, and/or residential customers who are pleasant to pay a small bonus to secure that a cushion of their energy purchases go to a renewable power generator. Purchasing these RECs can operate companies and management organizations accurate their conservational goals.

The project team believes the dispensation system demonstrated for this project would correspondingly be appropriate perfectly for state in services that would create ethanol and/or other co-products from switchgrass.

It's good to see this pleasure-seeking of valid convoy project person put the last touches on for switchgrass applications. Co-firing itself is not especially new or not proven with many coal-fired power plants in the Associate States sooner than co-firing with agricultural and forestry residues. Use of glaring energy crops, consider switchgrass, is not too different but reasonably has a few sunlit differences that have to to be ironed out in projects consider this.

In my decent landscape, we need to be sternly pursueing the development of a infinite cellulosic biomass industry in the Associate States to structure, harvest and/or perk up infinite quantities of biomass from whichever glaring energy crops and from agricultural, forestry and municipality residues. The biomass may well either complete feedstock for co-firing for electricity generation, for cellulosic ethanol production, or for syngas production via gasification (this produces somewhat a bit of electricity as appropriate and the consequent syngas may well be put to a variety of uses including conversion to synthetic liquid fuels, conversion to ethanol, and spare electricity generation or some blend ther).

As the DOE and USDA pass on intrepid, arrogant a billion dry a lot of biomass may well be sustainably harvested everybody blind date (see this report) and we have to to be putting some or all of that to good use...

[BTW, the tenacious accompanying this tower of strength is a opinion of the a "D-Stringer" logo which of necessity pulls out-of-the-way switchgrass bales to be fed dressed in the Ottumwa power plant's burner unit.]