M. Morvova et al., Plasma technologies for reducing CO2 emissions from combustion exhaust with toxic admixtures to utilisable products, J THERM ANA, 61(1), 2000, pp. 273-287
The method reported here provides a contribution to CO2 and combustion exha
ust utilisation. A multifunctional system for gas removal was tested on var
ious sources of exhaust (internal combustion engine, brown coal boiler, bit
uminous pulverised coal boiler, gas boiler, glass oven, VOC sources) in ful
l-scale or by-pass gas flow volumes.
A spontaneously-pulsing, direct-current electric discharge operating in a c
orona geometry was used. The discharge has strongly shining channels migrat
ing quickly along the stressed electrode. The synergetic effect of electric
discharge and heterogeneous catalysis on the organometallic part of the pr
oduct formed on the non-stressed electrode was responsible for the specific
character of the products. The final product of the process is a powder wi
th a fractal structure on the microscopic level with low specific mass and
insoluble in water. The main component (95%) of the solid product is an amo
rphous condensate of amino acids with about 5% of organometallic compound w
ith catalytic properties. The product was analysed using IR absorption spec
trometry, microscopic photography, HPLC and thermogravimetry. The following
amino acids were observed in the final product: alanine, serine, glycine,
aspartic acid, lysine, arginine, methionine, histidine.