Chemical Engineering World Magazine - August 2018
Chemical Engineering World Magazine - August 2018
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In this issue
Pumps and Valves.
Vacuum Technology In The Chemical Industry
For many economic sectors, the chemical industry is an indispensable supplier of raw materials. The automotive industry, mechanical engineering, plastics, foodstuff, glass, or building materials industries, for example, are all reliant on substances that are produced by the chemical industry. Plastics or synthetic resins, which are used as the basis for coatings or foams, play by far the most important role. These are employed in a countless number of end products that we use daily. Vacuum technology is crucial for a large part of these applications in the chemical industry.
7 mins
More Than One Valve Or Pump Choice For Every Application
With hundreds of different types of valves in the industry today and thousands of manufacturers globally how do you know which is the best product for your process? Chances are that there may be several good alternatives that could serve you well with a high mean time between failure (MTBF). But the solution is not always 100 per cent clear. The reason there is not a one size fits all. Solution is that every process has variables. The variables can be numerous and certain types of valves will perform better in one set of variables than another. It is often not as simple as just the pressure, temperature and the medium.
7 mins
Failure Of Double Wall Jacketed Piping In Refineries: Causes And Prevention
The application of double wall jacketed pipeline in sulfur recovery units of refinery plays a major role in productivity of sulfur. The sulfur content in crude oil may contain 0.22 wt% as obtained by detailed assay report. This sulfur has been extracted from various hydrocarbon processing units as sour water. Further the sour water processed in sulfur recovery unit to produce sulfur in solid powder form. The molten sulfur condenses via sulfur condensers to produce solid sulfur. The molten sulfur transferred to double wall jacketed pipeline and its failure case study is discussed. An improper design results in internal and external corrosion of internal core pipe deteriorate the pipe within five years. Root cause is analyzed and possible ways to mitigate similar failures is suggested.
5 mins
Sizing And Selecting The Proper Metering Pump
In process application, large amounts of chemicals are used during daily operations and the volumes of chemicals are large and very precise, with exact amounts delivered according to strict injection schedules. Thus the pressures - from very high to very low – for injecting the chemicals should be governed precisely. Metering pumps have—whether mechanically, hydraulically or electronically actuated—raised to the fore as a technology of first choice for the injection of chemicals in processing and agricultural applications, but within the realm of metering pumps there are many different styles and modes of operation. The article explains the different metering-pump technologies and illustrates how the user should select the proper size and style depending on the injection application for which the pump will be tasked.
8 mins
Chemical Engineering World Magazine Description:
Publisher: Jasubhai Media Pvt. Ltd.
Category: Business
Language: English
Frequency: Monthly
Chemical Engineering World CEW, the Official Organ of CHEMTECH Foundation, is India’s premier technology magazine for the chemical process industry professionals. This highly reputed monthly publication provides novel insights into the dynamics of Indian and global process industries.
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