REACTOR FOR REDUCING THE CONTENT OF NITROGEN OXIDES AND SULFUR OXIDE IN COMBUSTION GASES

摘要

PCT No. PCT/SE88/00670 Sec. 371 Date Aug. 7, 1990 Sec. 102(e) Date Aug. 7, 1990 PCT Filed Dec. 9, 1988 PCT Pub. No. WO89/05422 PCT Pub. Date Jun. 15, 1989.A reactor for reducing the contents of nitrogen oxides and sulphur oxides in combustion gases. The reactor is in the form of a post-combustion chamber to be connected after a combustion chamber. The reactor has a casing including a generally cylindrical main part transforming at its top into a dome-shaped outlet part with an outlet opening. Around the casing of the reactor, there is provided a heat-insulated wall whose inner side has substantially the same shape as the casing and which is eccentrically disposed in relation to the casing. The casing of the reactor accommodates a partition which is conical and has its apex directed towards the outlet opening. A gap is formed between the shell and the partition. At the inlet end of the shell, an inlet funnel is provided at a certain distance from the inlet end as so to form a gap. A heat exchanger is provided for preheating secondary air supplied through a secondary air intake into the gap between the casing and the wall at a certain distance from the opening. At the bottom, the gap is connected to a collecting box and an outlet pipe.