CATALYST FOR NOX REMOVAL IN NITRIC-ACID PLANT GASEOUS EFFLUENTS

被引：5

作者：

AVILA, P ^{[1
]}

BARTHELEMY, C ^{[1
]}

BAHAMONDE, A ^{[1
]}

BLANCO, J ^{[1
]}

机构：

[1] UNIV NACL EDUC DISTANCIA,MADRID,SPAIN

来源：

ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS | 1993年 / 27卷 / 03期

关键词：

NITROGEN OXIDES; SELECTIVE CATALYTIC REDUCTION (SCR); DE-NOX; NITRIC-ACID PLANT; NOX REMOVAL;

D O I：

10.1016/0960-1686(93)90118-I

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The behaviour of a V2O5-WO3-TiO2 phosphorated catalyst, in the Selective Catalytic Reduction (SCR) of equimolar NO+NO2 mixtures, is studied in order to analyse the possibility of its industrial utilization for the treatment of nitric-acid plant stack gases. With this new catalyst, an NO(x) conversion higher than 90% molar can be achieved, the ammonia concentration at the exit gas being lower than that required to form ammonium salts, throughout the temperature range of commercial interest: 250-450-degrees-C, at a relatively high space velocity (GHSV less-than-or-equal-to 40000 h-1 NC). The effect of several operating variables such as oxygen concentration and NO2/NO molar ratio in the feed is also discussed.

引用

页码：443 / 447

页数：5

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