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1 VUT v Brně Fakulta chemická Ústav fyzikální a spotřební c hemie

LIGNITE. as. a. CHEMICAL. RAW MATERIAL. 1 VUT v Brně Fakulta chemická Ústav fyzikální a spotřební c hemie. 2 VŠB-TU Ostrava Fakulta metalurgie a materiálového inženýrství Katedra chemie. Miloslav PEKAŘ 1. Miroslav KALOČ 2. Martina KLUČÁKOVÁ 1.

uriel-jimenez
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1 VUT v Brně Fakulta chemická Ústav fyzikální a spotřební c hemie

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  1. LIGNITE as a CHEMICAL RAW MATERIAL 1VUT v Brně Fakulta chemická Ústav fyzikální a spotřební chemie 2VŠB-TUOstrava Fakulta metalurgie a materiálového inženýrství Katedra chemie Miloslav PEKAŘ1 Miroslav KALOČ2 Martina KLUČÁKOVÁ1

  2. LIGNITE AT PRESENT( Czech Republic) low quality fuel combustion heat: 10 - 12 000 kJ/kg heating value: ~ 8 000 kJ/kg thermal power plant in Hodonín last mine working Mikulčice near Hodonín

  3. LIGNITE IN THE FUTURE? ESSENCE: coal + biomass surface activity high content of humic substances valuable chemical raw material

  4. LIGNITE IN THE FUTURE? direct use OR chemical or physical treatment for instance: sorbent plant production supporting agent source of humic substances

  5. lignite - SORBENT in natural state Maximum adsorbed amounts in mol/g Al3+ Cd2+ Cr3+ Cu2+ Fe2+ Pb2+ Zn2+ lignite 2.1810-4 1.4510-3 1.6410-4 3.5710-4 2.2610-4 4.7910-4 1.4410-4 coal Merck 3.7010-5 1.4210-3 2.3510-4 4.7910-4 7.5010-5 – –

  6. lignite - SORBENT after carbonization Toluene breakthrough times for various sorbents Relative breakthrough time in % 58 69 30 109 100 Sample 650/1 650/2 750/1 750/2 RBK

  7. lignite & AGRICULTURE Relative yields from pot tests relative % yield Fertilizer* Carrots Maize Vetch NPK 100 100 100 lignite 1 106 115 107 lignite 2 111 103 104 lignite 3 115 119 117 *Lignite fertilizer dosage grows with growing number

  8. lignite & AGRICULTURE field tests - wheat

  9. lignite & HUMIC ACIDS natural state: 20-30% after oxidation in suspension: up to ~ 60% sorption and complexation kinetics and equilibria transport and chemical processes in humic gels fractionation and characterization of humic acids thermooxidative stability preparation of organic-mineral complexes

  10. CONCLUSION WHAT TO DO...? BURN LIGNITE OR CLOSE MINES OR MAKE EFFICIENT AND INTELLIGENT USE OF ONE OF OUR FEW RAW MATERIALS

  11. Thanks for your attention

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