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Technology Profile: Production of EPDM Rubber

Ethylene propylene diene monomer (EPDM) rubber is a terpolymer elastomer derived from ethylene and propylene, along with small amounts of a non-conjugated diene as a third monomer (Figure 1). With a completely saturated polymer backbone, this random elastomeric copolymer exhibits…

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Facts At Your Fingertips: Predictive Maintenance Methods

Predictive maintenance (PdM) programs can provide advanced warning of equipment problems and potential failures. This one-page reference provides brief descriptions of six common predictive maintenance methods. Infrared thermography Continuous monitoring of equipment temperature over time has the potential to identify…

High-shear mixers for fine dispersions and emulsions

Batch high-shear mixers equipped with the Solids/Liquid Injection Manifold (SLIM) Technology (photo) deliver powders in an efficient manner for quick wet-out and complete dispersion into low-viscosity liquids. In a conventional rotor/stator mixer, materials are continually drawn from below the mixing…

Gas Trapping Can Unsettle Distillation Columns

Operational troubleshooting guidance is provided for several scenarios involving trapped non-condensable gases in distillation towers Non-condensable gases are often present in distillation towers, either expectedly or unexpectedly. When they do appear, or when the quantity of non-condensable gases varies from…

Refining Powder-Testing Practices

A rigorous and structured approach to determining the potential value of powder testing techniques in solids-handling applications can improve powder characterization and processing Many chemical process industries (CPI) sectors face growing pressure to measure and control powder properties more effectively,…

Controlling Particle Characteristics with Agglomeration

Solids-handling processes and downstream process steps can benefit greatly from carefully controlled particle characteristics. Presented here is guidance on how agitation agglomeration techniques can achieve desired particle properties Throughout the diverse sectors of the chemical process industries (CPI), the ability…

These flow regulators are now available in new sizes

The complete product line of this company's stainless-steel constructed NSF/ANSI 61-certified automatic Flo-Trol valves (photo) are now available. The most recent additions to the Flo-Trol flow-regulator line includes 3/8- through 3-in. models, and standard flow range offerings from 0.19 to…

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Mixed-salt processes target lower-cost CO2 capture

A mixed-salt process (MSP) designed to reduce the costs and increase the energy efficiency of removing carbon dioxide from post-combustion fluegas is advancing in two related projects. In the first, a 10-MW engineering-scale demonstration plant for the MSP is under…

Save up to 95% in CIP liquid with this drain valve cleaner

Drain valves comprise up to 20% of all valves in a typical processing plant. But cleaning them is costly, difficult and time-consuming due to long cleaning cycles and the risk of pressure shocks. The new ThinkTop pulse seat clean (photo)…

A one-size-fits-all electrolyzer for ‘green H2’ production

This company is launching the first standardized electrolyzer suitable for mass production. The EL 4.0 (photo) is a fourth-generation anion-exchange-membrane (AEM) electrolyzer the company has been developed since 2017. The new version is smaller, lighter and ISO 22734 certifiable. The…