Technical & Practical
Gear Pump Basics
The versatile nature of gear-pump technology allows operators to handle multiple fluids in multiple applications Pump technology can be traced as far back as the B.C. era, when ancient Egyptians used a shadoof to move water from one source (in…
Pump Seals to Manage Water
Paying attention to the seal design used in centrifugal pumps can help in water management. This article uses the beverage industry to illustrate this point Economic survival in a climate where industry competition and environmental concerns converge is not easy.…
Facts At Your Fingertips: Considerations for Selecting Protective Eyewear
Selecting personal protective equipment (PPE), including safety eyewear, for the chemical process industries (CPI) depends on the hazards present in the facility where it is used. The following describes considerations for selecting eye and face protection based on the potential…
Effective Contracting for a Pilot Plant
Contracting a pilot plant is a viable approach for any organization. However, it can be fraught with potential issues, which need to be understood and addressed in advance Reduced in-house resources have limited the options many organizations have for designing…
Improving a Thermal Loop: The Power Controller
Controlling the temperature of a process using a thermal loop is important in many applications. The importance of a power controller is discussed here For any process where temperature needs to be monitored or controlled, a thermal loop is required.…
Perfluorinated Ion-Exchange Membranes: Development and Application
Perfluorinated ion-exchange membranes are developing beyond legacy applications to find use in a wide variety of emerging markets, including renewable energy Ion-exchange membranes are used in numerous industrial processes, including seawater desalination, electrodialysis and the production of commodity chemicals via…
Technology Profile: Production of Vinyl Acetate
Vinyl acetate (also known as vinyl acetate monomer; VAM) is important in the manufacture of many polymers and resins. The greatest demand for vinyl acetate is associated with the production of polymers and copolymers, mainly poly(vinyl acetates) used in papermaking,…
Facts At Your Fingertips: Design Considerations for Pneumatic Conveying
Attention to the design of bulk-solids pneumatic-conveying pipelines can help avoid conveying-system problems, such as low conveying rates, plugging, excessive wear-and-tear in the conveying line, high conveying-system pressure drop, product breakage, fines generation and product cross-contamination. This one-page reference provides…
Bolt-Load Considerations Associated with ‘Hot Bolting’
In some situations, it might be necessary to remove or replace a bolt during operation. This article shows how to determine the proper bolt load to prevent leaks Bolted flange joints (Figure 1) are part of pressure vessel and piping…
A System Approach with Flow Analysis
Taking a system approach to find the root cause of a problem can be more beneficial than simply replacing a problematic pump. This article explains why We want the best reliability with anything that we work with. In a plant…