sooting

Noun

 * 1) The act of covering or dressing with soot.
 * 2) * 1987, A. Crucq, ‎A. Frennet, Catalysis and Automotive Pollution Control (page 459)
 * However, for some catalysts an accelerated aging was used which involved eight consecutive sootings at an inlet temperature of 370°C for three hours each followed by a regeneration during which the inlet temperature was increased to 650°C for 15 minutes.