Effect of Batch Feeding of Limestone on NO_xand SO_2 Emissions during Petroleum Coke combustion in a Bubbling Fluidized Bed Combustor

摘要

A kind of petroleum coke was burnt in a bubbling fluidized bed combustor (BFBC). The effect of limestone batch feed for SO_2 removal on NO_x emission was evaluated. NO_x emission decreased with limestone feed but a difference in the pattern of the change in emissions was observed between NO_x emission and SO_2 emission; SO_2 emission decreased immediately after limestone feed, whereas NO_x emission decreased gradually.