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Combined heat and power facilities (CHP), also known as co-generation power plants, create high-pressure steam to generate power and provide process steam. Process plants seek to minimize the use of make-up water by re-using condensate that theoretically should be clean water.Read More
What does it take to design a practical and reliable steam sampling system? Find out what you need to know to practically implement steam sampling guidelines in your process environment.
Steam sampling is sometimes viewed as a necessary evil in a process plant. However, the absence of steam due to a boiler shutdown makes for a bad day at a refinery, petrochemical or specialty chemical plant. But one size doesn’t fit all, and a number of variables must be considered to design and implement a practical, reliable steam sampling system.Read More
Analysis of process steam and condensate are important aspects of any chemical processing or refining operation. Impurities in these systems such as silica, sodium, and chloride, or deviations from target pH values, can wreak havoc on a plant’s operations. Online analyses of parameters such as pH and cation conductivity are commonly performed to monitor the condition of process water and steam.
In order to achieve accurate analysis, EPRI, ASTM and ASME recommend cooling of water samples to 77°F (25°C) to ensure consistent, accurate analysis. Unfortunately, cooling water temperatures in process plants commonly exceed 100°F (38°C). While this is acceptable to provide rough cooling, it is insufficient to properly cool samples for online pH, cation conductivity or similar analyzers.Read More
One common petrochemical process is the creation of preproduction plastic pellets, which are raw plastic that is heated and reformed into a wide variety of plastic products. Plastic pellets can range in size from 1 to 5 mm, and they can end up as wraps, sheets, bottles, containers, tubs, furniture, garbage cans or other items of all shapes and sizes.Read More
In the petrochemical industry, it often is necessary to ship and store product that would be gaseous at ambient conditions – such as liquefied natural gas (LNG) or liquefied petroleum gas (LPG) – as liquid. The product is stored or transported cold to minimize its volume.Read More
A range of petrochemical liquids and gases are stored and transported under high pressure, including liquefied petroleum gas (LPG). LPG is a two-phase liquid – a gas that is pressurized, stored and transported in its liquid phase, with high vapor pressures. Operators and the environment both face risks if unsafe LPG sampling solutions are employed.Read More
Running an efficient operation requires analysis of controlled, real-time data obtained through representative sampling within a production environment. This data is needed to provide the critical insights needed to control and optimize processes. Representative sampling is the act of capturing fresh product from the process stream for analysis.Read More