| 摘要 |
PCT No. PCT/GB87/00212 Sec. 371 Date Jan. 14, 1988 Sec. 102(e) Date Jan. 14, 1988 PCT Filed Mar. 27, 1987 PCT Pub. No. WO87/05988 PCT Pub. Date Oct. 8, 1987.A pair of regenerative burners is provided with feed means (25) for feeding a reducing agent into the products of combustion so that this agent can reduce oxides of nitrogen in the heat store to which heat is imparted by the products of combustion. Refractory elements (17,21) comprised by the heat stores may additionally or alternatively have catalytically active surfaces to promote reaction of the lower oxides of nitrogen. |
