Epri-Usdoe Cooperative Agreement: Cofiring Biomass With Coal

Tillman, David A.

doi:10.2172/794284

Cited by 9 publications

(13 citation statements)

References 15 publications

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“…More than 100 successful field demonstrations in 16 different countries have taken place for co-firing that use major type of biomass (wood, animal waste, herbaceous waste) combined with various types of coal in a pulverized fuel boiler (tangential, wall, and cyclone fired) [48,49]. The estimates for SO 2 emissions reduction were 3.84% for 5% co-firing ratio (energy basis) and 6.89% for 10% co-firing (energy basis) at Albright Generating Station and Michigan City Generation Station, respectively, by using PRB coal and woody biomass [11,50]. A study conducted with wood waste co-firing with PRB coal in Michigan provided the relation (RNOx = 0.75B) of NO x emissions reduction in combustion stage, where RNO x is the NO x emissions reduction, and B is the percentage of biomass in the fuel blend (mass basis) [11].…”

Section: Biomass Transportation and Chippingmentioning

confidence: 99%

Life Cycle Environmental Impact of Biomass Co-Firing with Coal at a Power Plant in the Greater Houston Area

et al. 2018

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Electricity generation from coal is one of the leading contributors to greenhouse gas emissions in the U.S. and has adverse effects on the environment. Biomass from forest residue can be co-fired with coal to reduce the impact of fossil-fuel power plants on the environment. W. A. Parish power plant (WAP, Richmond, TX, USA) located in the greater Houston area is the largest coal and natural gas-based power generation facility in Texas and is the subject of the current study. A life cycle assessment (LCA) study was performed with SimaPro ® and IMPACT 2002+ method, for the replacement of 5%, 10%, and 15% coal (energy-basis) with forest residue at the WAP power plant in Texas. Results from the LCA study indicate that life cycle air emissions of CO 2 , CO, SO 2 , PM 2.5 , NO X , and VOC could reduce by 13.5%, 6.4%, 9.5%, 9.2%, 11.6%, and 7.7% respectively when 15% of coal is replaced with forest residue. Potential life cycle impact decreased across 9 mid-point impact categories of, human/aquatic toxicity, respiratory organics/inorganics, global warming, non-renewable energy, mineral extraction, aquatic acidification, and terrestrial acidification/nitrification. The potential impact across damage/end-point categories of human health, ecosystem quality, climate change, and resources reduced by 8.7%, 3.8%, 13.2%, and 14.8% respectively for 15% co-firing ratio.

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Section: Biomass Transportation and Chippingmentioning

confidence: 99%

Life Cycle Environmental Impact of Biomass Co-Firing with Coal at a Power Plant in the Greater Houston Area

et al. 2018

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“…Other studies have found that successful cofiring in PC systems requires wood particle sizes of 1/16 inch or smaller (Gold and Tillman 1996). Numerous test burns of coal and biomass were conducted in the 1990s as part of collaboration between the Electric Power Research Institute (EPRI) and the U.S. Department of Energy (Tillman 2001). These tests investigated the feasibility of cofiring with a number of different feedstocks under various operating conditions and different coal burning technologies.…”

Section: Past Cofiring (Pre-2000)mentioning

confidence: 99%

“…Cofiring in this cyclone burner system was done with 1,000 tons of urban wood waste and kilndried wood waste (sawdust). Wood was screened to ½ inch in size, then blended with coal for cofiring at 6.5 percent energy value (Tillman 2001). Cofiring with wood resulted in a 9.5 percent decrease in NOx emissions and only minor reductions in boiler efficiency (approx.…”

Section: Dunkirk Station (New York)mentioning

confidence: 99%

“…This trial consisted of cofiring switchgrass at a 50-MW coal burner in Madison, Wisconsin. Cofiring levels varied between 4.3 and 10.2 percent heat input of switchgrass, resulting in decreases in combustion efficiency of only about 1 percent (versus 100 percent coal)(Tillman 2001). An important benefit of switchgrass cofiring is the potential decrease in NOx emissions, which were reduced about 31 percent owing to switchgrass cofiring(Aerts and Ragland 1997).…”

mentioning

confidence: 99%

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Cofiring biomass and coal for fossil fuel reduction and other benefits–Status of North American facilities in 2010

Nicholls¹,

Zerbe²

2012

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The Forest Service of the U.S. Department of Agriculture is dedicated to the principle of multiple use management of the Nation's forest resources for sustained yields of wood, water, forage, wildlife, and recreation. Through forestry research, cooperation with the States and private forest owners, and management of the National Forests and National Grasslands, it strives-as directed by Congress-to provide increasingly greater service to a growing Nation. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.

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“…Urban wood waste percentages were 5%, 7.5%, and 10% on a mass basis or about 2.5%, 3.5%, and 5% on a calorific value basis [39][40][41][42][43]. Urban wood waste percentages were 5%, 7.5%, and 10% on a mass basis or about 2.5%, 3.5%, and 5% on a calorific value basis [39][40][41][42][43].…”

Section: Petroleum Coke Cofiring At Bailly Generating Stationmentioning

confidence: 99%