There are four indices required for regenerative fire-resistant oil

namely: acid value

water content

resistivity

and granularity. The effectveness of on-line regeneration for fire-resistant oil is depending upon the behavior of the adsorbents. The acid-absorption capacity of polar silicon-alumina adsorbent is 4.6 times higher than that of the smallpartice sized diatomite. The resistivity of oil after regeneration by using polar silica-alumina is enhanced about 6 times higher than using small-particle sized diatomite. Application of the said new technology of on-line regenevation for fire-resistant oil

i.e. polar adsorbent regeneration dewatering facility

the service life of fire-resistant oil in operation can be doubly lengthened. After application of the said new technology in Shajiao C Power Plant

Guangdong Province

the effectiveness is remarkable.