1) double pressurizing method of nitric acid plant
双加压法硝酸装置
2) split pressure nitric acid process
双加压硝酸工艺
3) 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。
4) 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。
5) potassium nitrate unit
硝酸钾装置
1.
Analysis and contrast were made for the multi-kind o f potassium nitrate production units in China and abroad,process flow was pres ented for potassium nitrate by using the vacuum crystallization and metathesis m ethod,design features were described for the potassium nitrate unit by using t he vacuum crystallization and metathesis method.
对国内外多种硝酸钾生产工艺进行了分析对比 ,提出了真空结晶复分解法工艺流程 ,阐述了真空结晶复分解法硝酸钾装置的设计特点 ,总结了实际生产应用效果。
6) concentrated nitric acid equipment
浓硝酸装置
1.
According to the site situation, the reason for large area breaking off of acid proof granite plates located on the main structure floor and in the trench of the 15×104 t/a concentrated nitric acid equipment in Lanzhou Petrochemical Company is analyzed.
针对兰州石化公司15万t/a浓硝酸装置中主体框架的地面及地沟防腐蚀耐酸花岗岩板大面积脱落现象,根据装置现场状况,分析了其产生脱落及失效的原因。
补充资料：双加压硝酸工艺
分子式：
CAS号：
性质：稀硝酸生产方法之一。氨氧化过程为中压，酸吸收过程在高压下进行。0.4～0.55MPa压力的氨、空气混合后加热到约270℃进氨氧化炉，通过铂、铑合金网催化反应，生成氮氧化物，经热回收、冷却，进氧化氮压缩机加压至1.0～1.2MPa压力，冷却、进硝酸吸收塔，用水吸收生成约65％硝酸。特点：尾气不经处理，氮氧化物可低于200ml/m3，符合排放标准。
CAS号：
性质：稀硝酸生产方法之一。氨氧化过程为中压，酸吸收过程在高压下进行。0.4～0.55MPa压力的氨、空气混合后加热到约270℃进氨氧化炉，通过铂、铑合金网催化反应，生成氮氧化物，经热回收、冷却，进氧化氮压缩机加压至1.0～1.2MPa压力，冷却、进硝酸吸收塔，用水吸收生成约65％硝酸。特点：尾气不经处理，氮氧化物可低于200ml/m3，符合排放标准。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条