In chemical industries we all need to design a pipe distributor for liquid. These distributors we generally use to distribute the liquid inside a absorber column, distillation column or a extraction column. To achieve best performance of above unit operations distribution of the liquid is most critical. A properly designed liquid distributor ensure the uniform […]
Pipe Distributor for Liquid Read More »
In our plants we use structured packed columns for gas-liquid operations, such as distillation, absorption, stripping, degassing, etc. As a process engineer we are required to estimate the packed column diameter during design calculation. Or, many times we need to check the maximum possible throughput capacity from the existing installed column. Apart from this sometimes
Packed Column Diameter Estimation Read More »
In Chemical Process Industries (CPI), we use Agitated Batch Reactors for various product manufacturing in fine chemicals, specialty chemicals, APIs, etc. These types of reactors are easy to use and provides flexibility in operation in comparison with continuous reactors. Moreover, we can produce variety of products as per the market demand. However, operating cost for
Material & Energy Balance for Batch Reactor Read More »
In chemical process industries, Multiple Effect Evaporators or MEE we use to concentrate the lean feed stream into concentrated product output. In such processes to concentrate dilute or lean feed stream we need to evaporate lots of water from the input stream (i.e., feed may contain very low concentration 2-3% or less). So, here we
Multiple Effect Evaporator Read More »
In Chemical Process Industries process safety is of utmost importance. And, to address this a process engineer analyzes all the possible scenarios during plant designing. Any wrong design may lead to a possible plant accident. As a single big accident such as toxic gas leakage, plant fire or storage tank explosion can do irreversible damage
This is in continuation of my last article on the costing of shell & tube heat exchanger. In this article I will be sharing & discussing the excel sheet for distillation column cost estimation. This will give us clarity about the equipment cost which we can use as a basis to validate the various quotation
Distillation Column Cost Estimation Read More »
As a Chemical Process Engineer, we are suppose to do equipment costing to evaluate the equipment fabrication quotations received from various equipment fabricators. These equipment are like shell and tube heat exchangers, distillation columns, agitated vessels, jacketed vessels, decanters, storage tanks, etc. This equipment costing exercise gives us clarity about the equipment cost, which we
Shell and Tube Heat Exchanger Costing Read More »
In Chemical Process Industries, we transfer gas or liquids from one point to another point. And, for this purpose we use pumps, fans, compressors and pipe lines accordingly. As a process engineer, we need to do the process calculations to estimate the power requirement, flow rates and pressure drop through this piping network. So, to
Energy Balance for Steady State Flow Read More »
Orifice type flowmeters are widely used in our chemical process industries. The reason behind this, is their low cost, easy installation and maintenance. Fundamentally, an orifice meter provides volumetric flow rates of the fluid and by multiplying it with fluid density we can get mass flow rates. Orifice type flowmeters gives very accurate flow rates
Orifice Meter – Process Data Sheet Read More »
In chemical process industries we use control valves to regulate the flow of fluids. This fluid can be liquid, gas or sometimes liquid slurry. We need control valves to control various parameters such as level, pressure, temperature, flow, feed ratio, etc. These control valves can be pneumatic or electric operated. In our industries, we use
Control Valve Process Data Sheet Read More »
