In Chemical Process Industries (CPI), distillation columns are the main steam consumers. And, as a process engineer, we are continuously keep on working to minimize the steam consumption norm. So that we can reduce overall variable cost of the product. Therefore, to achieve this objective we can work upon various improvement initiatives. These various techniques […]
Heat Pump in Distillation Column Read More »
In our Chemical Process Industries, we use centrifugal pumps most commonly. And, for the selection of a proper centrifugal pump we need to provide its technical specification correctly and completely. So, we can see the various important parameters which require in pump process data sheet are available NPSH, flow rate, head, fluid properties, temperature, etc.
NPSH Available for Centrifugal Pump Read More »
Inside every chemical plant we can find compressors very easily. These rotating devises we use to compress and pump or transfer the compressible fluids like air, ammonia, natural gas, refrigerant, carbon dioxide, etc. from one point to another. These equipment are power guzzlers and consumes major part of total electricity bill inside the plant. There
Process Specification Sheet for Compressor Read More »
In Chemical Process Industries (CPI) we use continuous stirred tank reactor (CSTR) or mixed flow reactors for various product manufacturing. For instance, we can use these reactors for liquid-liquid, liquid-gas, liquid-liquid-solid and liquid-gas-solid phase reactions. Moreover, a fluidized bed reactor is also a CSTR where gas-solid phase reaction occurs. In this article we will develop
Continuous Stirred Tank Reactor (CSTR) Read More »
We can see single stage distillation method application in our chemical process industries. This is a very simple unit operation, which consists only single stage. In this method we remove all the vapour as such, or is condensed as a product. We can perform single stage distillation process in batch and as well as in
Single Stage Flash Distillation Methods Read More »
In Chemical Process Industries (CPI) we face the distillation problem of azeotropes or close boiling chemical mixtures. So, to break the azeotropes we can use several techniques like, azeotropic distillation using entrainers, extractive distillation using solvents, molecular sieves, and pressure sensitive distillation or PSD. However, we can find the use of first three methods in
Pressure Swing Distillation to Break Azeotropes Read More »
In chemical process industries, we can find the use of steam distillation method for many services. Mainly, we use this technique where we want to distil the components form high boiling point mixtures or altogether non-volatile salt solutions. For example, recovery of 2-chloropyridine from neutralized solution containing pyridine, NaCl and water. Moreover, steam distillation become
Steam Distillation Method for Component Separation Read More »
In chemical process industries we can face two types of mixture. First, where purity of more volatile components by simple distillation does not take place after a certain concentration. And, in second category it takes place so slowly that an uneconomic number of plates is required. So, to separate these types of mixtures we use
Extractive Distillation Method for Azeotropes Read More »
As we know ethanol and water forms azeotropes and it is not possible to produce anhydrous alcohol by simple distillation process. So, due to this azeotrope formation we can purify ethanol up to 89 mole% only. Therefore, to get anhydrous alcohol we require different techniques like hydrophilic molecular sieves or azeotropic distillation. In this article
Process Simulation of Anhydrous Alcohol Plant Read More »
In chemical process industries, we come across certain mixtures where separation is impossible or difficult by simple distillation. This type of mixtures we know by the name of azeotropic mixture. Other than this, if relative volatility of the mixture is close to 1.0, in the cases when components boiling points are very close, then also
Azeotropic Distillation Process for Ethanol Dehydration Read More »
