HUMIC ACID-Fe AS CATALYST FOR COAL LIQUEFACTION
Abstract
Research to increase the activity of iron based catalysts focuses on decreasing the particle size, increasing catalyst dispersion. The chelate compound of iron with humic acid (HA), which macromolecules radii can range from 6 to 50 nm, is truly in a highly dispersed state. Fe2+ or Fe3+ were dispersed finely into the HA matrix through the ion exchange with –COOH groups or chelate with carbonyl group in humic acid macromolecules. X-ray diffraction (XRD) and FT-IR spectrophotometer were used to characterize iron species before or after chelating with humic acid. The results indicate that there exist α-FeOOH, ferrihydrite and amorphous iron in HA-Fe. Most of the work has been conducted on a laboratory scale, and the results show that HA-Fe catalyst was approved for its excellent catalytic activity in coal liquefaction, and the conversion and oil yield of coal have been greatly improved.
About the Authors
Q. Wang
Vocational and Technology College, Liaoning Shihua University, Fushun, Liaoning, P. R. China
Russian Federation
Russian Federation
lecturer of Vocational and Technology College, Liaoning Shihua
University, Fushun, Liaoning, P. R. China. Ph: +86-24-56863325
H. Wang
Department of Chemistry, School of Chemistry and Materials Science, Liaoning Shihua University, Fushun, Liaoning, P. R. China
Russian Federation
Russian Federation
Professor of Department of Chemistry, School of Chemistry
and Materials Science of the same university. Ph: +86-24-56863325
J. Jin
Department of Chemistry, School of Chemistry and Materials Science, Liaoning Shihua University, Fushun, Liaoning, P. R. China
Russian Federation
Professor of the same department. Ph: +86-56863325
Russian Federation
Professor of the same department. Ph: +86-56863325
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Review
For citations:
Wang Q., Wang H., Jin J. HUMIC ACID-Fe AS CATALYST FOR COAL LIQUEFACTION. Kataliz v promyshlennosti. 2013;(1):60-68. (In Russ.)
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