合成尿素

合成尿素用新型CO2原料气除氢催化剂的工业侧流试验

Industrial Sidestream Test of a New Type Catalyst for Hydrogen Removal from CO_2 Feed Gas for Urea Synthesis

介绍了新型合成尿素用CO2原料气消氢催化剂的设计思路，研制出一种高活性强抗硫节能消氢催化剂。

An idea for designing new catalyst for hydrogen elimination from CO_2 feed gas in urea synthesis was suggested . The excellent catalyst with a high activity for H_2-O_2 and CO-O_2 reaction , good resistance to sulfur poisoning and good performance for energy saving was designed and prepared .

合成尿素新工艺研究中压变换气气提法联尿

Study on the Integrated Urea-Ammonia Process by Stripping with Converted Gas at Medium-Pressure

天然气转化生产合成氨尿素的节能减排CO2新工艺

Energy-Efficient New Technology for Producing Synthetic Ammonia and Urea Using Natural Gas

论合成氨尿素装置减排CO2节能创新工艺发展前景

Discussing Developmental Prospect for CO2 Emission Reduction and Energy Conversation Innovation Process in Ammonia Synthesis and Urea Plant

CENTUM-XL集散控制系统在大型氨厂合成、尿素装置中的应用

Use of CENTUM XL DCS in a Large Ammonia Plant for Synthesis and its Urea Unit

一氧化氮合成与尿素循环酶的关系：瓜氨酸&一氧化氮循环

The Relation of Nitric Oxide Synthesis and Urea Cycle Enzymes

采用先进技术的3052合成氨尿素装置

3052 Ammonia and Urea Apparatus Using Advanced Technologies

试验结果表明，所合成的尿素改性酚醛树脂贮存性好；

The experiment result of shows that storable stability of the modified resin is good .

建国60年合成氨尿素工业发展历程与展望

Development Progress for Ammonia Synthesis and Urea Industries in 60 Years of State-Establishment and Forecast

通过改变合成时尿素和硫脲的用量，制备一系列催化剂。

By changing the amount of urea and thiourea , a series of catalysts were prepared .

该系统在贵州赤天化集团有限责任公司合成、尿素装置中应用，效果良好。

The system is used in the ammonia synthesis section and the urea unit at Guizhou Chishui Natural Gas Chemical Group Co. , Ltd with good results .

公司长期以来的战略特征是围绕天然气资源，依托合成氨尿素这一主业，实施纵向一体化战略，延伸产业链和扩张规模。

The long-term strategy of the company is to focus on natural gas resources , rely on the main trade of urea , exercise vertical integration strategy , extend industry chain and expand .

采用直接固相反应将尿素与氯化铁（摩尔比6∶1）混合，经充分研磨合成了尿素铁盐配位化合物，并对其拉曼光谱和红外吸收光谱进行了研究。

Urea-Fe complexes were synthesized by grounding the mixture of urea and ferric chloride hexahydrate in a mole ration of 6 ∶ 1 . The Raman and infrared absorption spectra of product as well as urea have been measured .

合成氨、尿素装置PLC控制系统升级改造及功能开发

Upgrading and function development of PLC control systems for ammonia and urea plants

两种微囊化HL一7702细胞同样具备持续合成白蛋白和尿素的能力，其浓度水平无统计学差异。

And the two kinds microencapsulated HL-7702 cells both had the continued ability of synthesis of albumin and urea , the concentration level had no significant difference .

结合对合成氨、尿素装置PLC系统的升级改造，简要介绍PLC控制系统改造的方案、组成和功能，着重分析了SOE软件设计方法及特点。

Combined with the upgrading of the PLC control systems for ammonia and urea plants , the paper briefly presents the scheme , composition and function of PLC control system , emphatically analyzes the design methods and characteristics of SOE software .

结果表明，利用这两种燃料都可实现纳米MgO颗粒的低温燃烧合成，但尿素-硝酸镁体系仅能形成溶胶，其燃烧形式为溶液燃烧，合成MgO颗粒的平均尺寸为47.4nm；

The result shows that nanocrystalline MgO powders can be prepared using the above two fuels . But urea-Mg ( NO3 ) 2 system only can form sol , so its burning way is solution combustion , and the size of the synthesized MgO powders is 47 . 4nm ;

合成氨、尿素生产蒸汽自给技术小结

Summary of steam Self-supply Technology for Synthetic Ammonia and Urea Production

合成氨、尿素系统蒸汽冷凝液的回收利用

Recovery and Utilization of Steam Condensate in Ammonia and Urea Systems

尿素合成塔是尿素合成装置的核心设备。

Urea reactor is the core equipment of urea synthesis devices .

合成过氧化尿素工艺条件优化及稳定剂研究

Optimization of Technology Condition of Urea Peroxide and Study on Stabilizing Agent

中型煤制合成氨&尿素水污染的治理

The Treatment of the Water-pollution Caused by the Medium-sized Coal-made Synthetic Ammonia-urea

由双氧水与尿素反应合成过氧化尿素。

Urea peroxide is synthesized by reaction of urea with hydrogen peroxide .

合成过氧化尿素之稳定剂研究

The Study on the Stabilizer of the Synthesis for Urea Hydrogen Peroxide

锦天化合成氨／尿素装置的考核

Performance test of ammonia / urea plants of Jinxi Natural Gas Chemical Complex

大型合成氨与尿素生产过程的计算机控制

Computer control of production processes of large scale synthetic ammonia and urea installation

大型合成氨和尿素装置生产管理与决策系统的研究和开发

Production management and strategy research and developmen large synthetic ammonia and urea appliances

微波辐射快速合成过氧化尿素

Rapid Synthesis of Urea Peroxide under Microwave Irradiation

大型合成氨、尿素装置增产技术改造

Summary on technical revamp of large scale ammonia and urea plants for capacity expansion