Precombustion control options for air toxics

Journal Article · Sun Dec 31 04:00:00 EST 1995 · Preprints of Papers, American Chemical Society, Division of Fuel Chemistry

OSTI ID:460106

Akers, D J; Harrison, C D ^[1]

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1. CQ Inc., Homer City, PA (United States)

Coal cleaning reduces the ash and sulfur content of coal by removing ash-forming and sulfur-bearing minerals. Coal cleaning can also reduce the concentration of most of the elements named as hazardous air pollutants in the 1990 Amendments to the Clean Air Act because many of these elements are associated with mineral matter. For example, arsenic is commonly associated with pyrite; cadmium with sphalerite; chromium with clay minerals; mercury with pyrite and cinnabar; nickel with millerite, pyrite, and other sulfides; and selenium with lead selenide, pyrite, and other sulfides. There are also cases in which some of these elements are organically bound. Just as both organic and pyritic sulfur can be found in the same coal, the same trace element may be both organically bound and present as part of a mineral in the same coal. This paper describes trace element removal by advanced coal cleaning. Emission results are discussed.

• OSTI ID: 460106
• Report Number(s): CONF-950801--
• Journal Information: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry, Journal Name: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry Journal Issue: 4 Vol. 40; ISSN 0569-3772; ISSN ACFPAI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
AIR POLLUTION ABATEMENT
ARSENIC
CADMIUM
CHROMIUM
CLEANING
COAL
COAL PREPARATION
COMBUSTION
CYCLONE SEPARATORS
LEAD
MERCURY
MINERALS
NICKEL
POLLUTANTS
PYRITE
SELENIUM