1. Pyrolysis of De-inked Paper Sludge for Adsorbent Synthesis
- Author
-
Qin, Na
- Subjects
- Chemical Engineering, adsorption, pyrolyzed DPS, BPL, IAA, PYROLYSIS
- Abstract
De-inked paper sludge (DPS) was pyrolyzed at 600 °C, 750 °C and 900 °C in nitrogen to synthesize carbon-calcium-based adsorbents. The performance of the synthesized adsorbents for the gas-phase adsorption of elemental mercury (Hg), sulfur dioxide (SO2), and isoamyl acetate (IAA) vapor was investigated, and the performance was compared to that of commercially available activated carbon (BPL, Calgon Carbon Corporation). The physical and chemical properties of the pyrolyzed DPS and BPL were characterized to assess their chemical and physical differences, and those differences were used to hypothesize reasons for differences in their adsorption performance for the selected test compounds (elemental Hg, SO2 and IAA). Characterization of the adsorbents was conducted using BET surface area, X-ray diffraction, TGA, scanning electron microscopy, electron dispersion spectroscopy, and FTIR. Gas chromatography was used to analyze IAA collected through out adsorption process. Adsorption capacities of pyrolyzed DPS and BPL were investigated in different experimental conditions (temperature, steam, etc).
- Published
- 2010