Process Flow Diagram Nitric Acid
This reaction is highly exothermic in nature.
Process flow diagram nitric acid. A short video clip illustrating the process of nitric acid production that can be viewed online by students or downloaded for showing in class. It is absolutely necessary that chemical engineers know how to read process flow diagrams because it is the primary method of detailing the process and design information. Here the shell side flow is ammonia and the tube side flow is low pressure steam. The proportion of ammonia and air is10 10 7.
Flow diagram of high strength nitric acid production from weak nitric acid. You can click use this template to open this pfd template and customize it for your solution. Simplified nitric acid process. In figure 5 towler and sinnott 2013 air enters a.
This is a process flow diagram example for a simplified nitric acid process. Process flow diagram for production of nitric acid and ammonium nitrate. These byproducts then flow to an absorption column where the nitric oxide mixes with auxiliary air to form no2 which is recovered as weak nitric acid. You can find many pfd shapes in the diagram such as tank vessel cooler and various connectors.
Nitric acid is both a strong acid and a strong oxidizing agent nitric acid can dissolve most metals. Questions of nitric acid manufacturing ask your question what are the raw materials required for the manufacture of nitric acid by ostwald process. For the manufacturing of nitric acid ammonia is used as a prime raw material and platinum 10 rhodium is used as a catalyst. Ammonia is first oxidized to nitric oxide in presence of heat oxygen and the catalyst.
Ammonia enters the mixer at 80 c and air at 208 c and mixing takes place and heat is exchanged between them and leaves at 180 c. The ostwald process converts ammonia to nitric acid and involves two steps. Nitric acid is most commonly manufactured by ostwald process. And oxides of nitrogen nox byproducts.
Nitric acid is a colorless liquid that is used in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers dye intermediates explosives and many different organic chemicals.