title: Boiler Briquette Coal versus Raw Coal: Part II-Energy, Greenhouse Gas, and Air Quality Implications.
abstract: The objective of this paper is to conduct an integrated analysis of the energy, greenhouse gas, and air quality impacts of a new type of boiler briquette coal (BB-coal) in contrast to those of the raw coal from which the BB-coal was formulated (R-coal). The analysis is based on the source emissions data and other relevant data collected in the present study and employs approaches including the construction of carbon, energy, and sulfur balances. The results show that replacing R-coal with BB-coal as the fuel for boilers such as the one tested would have multiple benefits, including a 37% increase in boiler thermal efficiency, a 25% reduction in fuel demand, a 26% reduction in CO2emission, a 17% reduction in CO emission, a 63% reduction in SO2emission, a 97% reduction in fly ash and fly ash carbon emission, a 22% reduction in PM2.5mass emission, and a 30% reduction in total emission of five toxic hazardous air pollutant (HAP) metals contained in PM10. These benefits can be achieved with no changes in boiler hardware and with a relatively small amount of tradeoffs: a 30% increase in PM10mass emission and a 9-16% increase in fuel cost.
authors.affiliation: a Environmental and Occupational Health Sciences Institute, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School , New Jersey , USA.|b Rutgers University , Piscataway , New Jersey , USA.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Zhang
authors.affiliation: c Am-As Corporation , Portland , Oregon , USA.
authors.forename: Su
authors.initials: S
authors.lastname: Ge
authors.affiliation: d College of Environmental Science and Engineering , Nankai University , Tianjin , China.|e Environmental and Occupational Health Sciences Institute, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School , Piscataway , New Jersey , USA.
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Bai