In chemical process industries we use vessels for handling fluids. This fluid can be liquid, solid, gas or combination of these. We need vessels for many purposes like, feeding or dozing, holding the material, collection of material, separation of the material, etc. Based on the process requirements the geometry and orientation of these vessels can […]
Vessel Specification Sheet (PDS) Read More »
In a distillery, we use two distillation columns in series for ethanol distillation from fermented wash. First column is Analyzer Column and second one is Rectifier Column. We get final product from top of the Rectifier Column, which is an azeotropic mixture of ethanol and water. This final product is also known by the name
Ethanol Distillation (Rectified Sprit) in Distillery Read More »
As we know, in liquid-liquid extraction process we use solvent, to extract solute from the feed. If we technically see, extraction is the combination of two processes. First is mixing of feed and solvent, while second process is decantation, where phase separation takes place. The solvent and feed are immiscible liquids and forms two distinguished
Super Critical Fluid Solvent Extraction Process Read More »
This article is about understanding the process of a molten salt heating system. Before this let us discuss different types of heating systems, which we use in our chemical industries. In our chemical plants, we need to heat exchange at various temperature levels. These temperature levels can be low, in the range of 50 –
Molten Salt Heating System Read More »
You can see in many processes; we use thermic fluid to maintain the reaction temperature. In reactor jacket or coil thermic fluid circulates to maintain required temperature conditions. For, efficient reactor operation automation and controls of the reactor is very important. Moreover, same thermic fluid system you can use for reactor heating & cooling requirements
Automation and Controls for Batch Reactor Read More »
In chemical process industries we use Fired Heater or Furnace to supply the heat at higher temperature levels. When I say high level, it means around greater than 500 0C. As we know other sources of heat supply are boiler, thermic fluid heater and molten salt heating systems. Out of these boiler and thermic fluid
Fired Heater Process Calculations and Automation Read More »
In many chemical manufacturing processes ammonia is used as a raw material and generally feed in excess than theoretical requirement. And unconverted ammonia recovery is very important for the lower product cost and market competitiveness. In this type of process, we first absorb this unconverted ammonia in the absorber column it can be packed or
Ammonia Recovery Process Design Calculation Read More »
In many chemical manufacturing processes, ammonia is used as a reactant and generally we feed it in excess than theoretical required. After reaction part of the ammonia reacts and unconverted ammonia comes out from the reactor with product. For the economic feasibility and moreover environmental pollution abatement we need to recover this unconverted ammonia. Therefore,
Process Design Calculations for Ammonia Absorber Read More »
In chemical industries fluidized bed reactors are used for solid gas reaction. In this we use gases as a fluidizing media to fluidize the solid catalyst, which is a bed of finely divided solid particles. This fine powder is contained in a cylindrical vertical shell, having a grid at the bottom to support the catalyst
Fluidized Bed Reactor Read More »
In chemical industries raw materials enter into reactor and reaction takes place to convert them into products. These reactions can be either catalytic or non-catalytic. Reactor temperature and pressure depend on the reaction conditions. In chemical plants some reactions occur at low temperatures, it can be as low as ambient temperature. While some occurs at
