Affiliation:
1. University of Science and Technology Beijing
2. Shenyang Academy of Environmental Sciences
3. shanxi Ecological Environment Research Center
Abstract
The research studied the treatment ways of discharging coking residues and the distribution characteristics of PAHs in two kinds of typical coking residues. The outputs of coal tar (100,000t/a for Plant A, 84,000t/a for Plant B) were great and it had become an important by-product. Coal tar residue, with the yields of 4,500 t/a and 6,400 t/a for Plant A and B, respectively, were always reused for coal blending. The concentration of PAHs with 5-6 aromatic rings was 1.08×104 mg/kg in coal tar residue, the concentration of PAHs in coke discharging smoke & dust (28.81 mg/kg) was relatively low compared with coal tar residue. The ∑BaPeq were 4.2×103 mg/kg and 0.71 mg/kg for coal tar residue and coke discharging smoke & dust, respectively.
Publisher
Trans Tech Publications, Ltd.
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