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1)  denitrification device
脱硝装置
2)  SCR denitrification facility
SCR脱硝装置
1.
At present,the coal-fired units use the selective catalytic reduction(SCR) technology for denitrification treatment of the flue gas to be comparatively much,but many of them are newly constructed units accompanied again with SCR denitrification facility to form a complete set under condition in which the contract of main unit having already been signed,it is inavoidably affecting the boiler.
目前国内采用选择性催化还原脱硝工艺进行烟气脱硝处理的燃煤机组较多,但多数是在主机合同已经签订的条件下再配套SCR脱硝装置,其安装不可避免会对锅炉结构产生影响。
3)  SCR flue gas denitration equipment
SCR烟气脱硝装置
1.
There are no performance test codes for SCR flue gas denitration equipment in China at present.
针对目前我国还没有SCR烟气脱硝装置性能试验规程的情况,结合某电厂600 MW机组SCR烟气脱硝装置性能试验的实践,介绍了烟气脱硝系统性能试验采用的标准、性能试验的特点和性能试验中NOx、NH3、SO3等关键参数的测量方法,并就SCR烟气脱硝装置性能试验中的几个问题进行探讨,供SCR烟气脱硝装置进行性能试验提供一些参考建议。
4)  Nitric acid unit
硝酸装置
1.
The failure accident of tube 1o tubesheet joint of nitric acid unit attached by welding be expang-ing happened sometimes,in order to equipment safety operation, tube to tubesheet joint used a new yupe are welded inside holes, and key point is the inner weld quality inspection .
硝酸装置中管子管板采用胀焊接连接法导致管接头失效的事故时有发生,为了确保设备的安全运行,塔内冷却盘管中管子与管扳的连接采用新型内孔焊结构。
5)  nitric acid plant
硝酸装置
1.
Approach to the control of anti-surge of compressor sets in nitric acid plant;
硝酸装置压缩机组防喘振控制方法探讨
2.
This paper summarizes the basis for material selection in nitric acid plant design.
总结在硝酸装置设计中对材料的选择依据,阐述了在设计硝酸装置中做好防腐工作的重要性,针对不同腐蚀原因,硝酸装置所采取的不同防腐措施,同时总结了多种材料在硝酸生产实践中的具体运用。
6)  ammonium nitrate production
硝铵装置
1.
Waste water from evaporation in ammonium nitrate production must be discharged.
硝铵装置均要外排蒸发产生的废水。
补充资料:高放废液的脱硝
分子式:
CAS号:

性质:指在乏核燃料后处理厂高放废液的蒸发处理过程中,加入蔗糖或甲醛为还原剂,使之与高放废液的硝酸发生氧化还原反应,生成二氧化氮或一氧化氮,降低蒸发浓缩液的酸度。高放废液脱硝处理的优点是减少因中和所引进的盐量,使在固化处理时有较高的包容量或较大的体积变化系数,从而减小最终处置废物的体积。

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