用低毒除氧剂代替联氨除氧的应用研究

RESEARCHES ON THE APPLICATION OF WEAKLY POISONOUS DEOXIDIZER IN SUBSTITUTION FOR HYDRAZINE

大庆石化总厂化肥厂１９９４年以前一直使用联氨（Ｎ２Ｈ４）作为锅炉给水除氧剂。由于联氨具有毒性并致癌、且易燃易爆等缺点，因此，１９９４年化肥厂试验使用了一种新型除氧剂———二甲基酮肟（ＤＭＫＯ）。几年来的应用表明，该除氧剂使用情况良好，完全能够满足工艺要求，同时，还降低了该厂每年的药剂费用。

Before 1994,Fertilizer Plant in Daqing Petrochemical Plant had been using hydrazine (N 2H 4) as deoxidizer to deoxidize boiler water supply. Because hydrazine has its disadvantages, for example, it is poisonous, cancerogenous, combustible and explosive, Fertilizer Plant tried to use a new deoxidizer dimethylketoxime (DMKO) in 1994. In a few years' application, it was indicated that this deoxidizer had some better performances and could meet the technological demands. At the same time, the use of the deoxidizer retrenches chemical expenses every year.