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Chemical Engineering

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Commercial Progress on Turquoise Hydrogen

Producing hydrogen via methane pyrolysis – termed ‘turquoise hydrogen’ – has thus far received less attention than ‘blue’ and ‘green’ H2, but it may offer advantages over both While the vast majority of current hydrogen production occurs by steam reforming…

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Modular Construction Encourages New Applications

The efficiency and cost effectiveness of modularity provides advantages for small- and large-scale projects When the right conditions exist, the benefits of modular construction — from laboratory scale to large scale — are plentiful and allow single-source, cost-effective and efficient…

Facts At Your Fingertips: Wet and Dry Milling

Milling is a common technique for controlling particle-size distribution (PSD) in solid products through size reduction and surface modification. Broadly, mills can be categorized as wet or dry mills, and these two categories are each further subdivided by how comminution…

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Hydrogen Production via Methane Pyrolysis: An Overview of ‘Turquoise’ Hydrogen

‘Turquoise’ hydrogen processes generate H2 without releasing CO2. Presented here are the opportunities and challenges for producing hydrogen by methane pyrolysis Hydrogen-producing processes are classified using a color scheme according to their carbon footprint (Table 1; [1–3]). So-called “turquoise hydrogen”…

The shortness of time . . .

As I get older, time seems to get shorter. Although many experience this feeling, the duration of time is not changing, only our perception of it. However, in the five decades I have been involved in science, the timescale at…

Management and Maintenance Strategies for Valves

Asset criticality and risk are primary among the many factors that must be considered to appropriately manage valves throughout their lifecycle Asset strategies usually define how assets will be treated in the different phases of an asset lifecycle, from acquisition…

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A new heat-resistant membrane

Most polymeric membranes degrade during use, making them impractical for industrial separation processes. To solve this problem, researchers from the State University of New York at Buffalo (SUNY Buffalo; www.buffalo.com), with cooperation for scientists at Rensselar Polytechnic Institute, have created…

Solids Flow Measurement in Specialty Chemicals: Seamless Integration

Continuous flow measurement is used at this Austrian specialty chemicals manufacturer for process optimization, as well as overload protection Sensing-plate weighing systems are often used for weighing free-flowing and very dusty bulk materials. Such solids flowmeters ensure reliable determination of…

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Slurry-processing system produces dry solids, aqueous NH3 in a single step

A new technology designed for improving the environmental footprint associated with processing liquid waste streams containing suspended or dissolved solids has been developed by Sedron Technologies (Sedro-Wooley, Wash.; www. sedron.com) and tradenamed Varcor. The technology separates, dries and sterilizes solid…

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Safely Operating a Heat-Transfer-Fluid System

Being aware of and understanding potential hazards are crucial for operating a heat-transfer-fluid system safely A significant number of industrial processes require heating or cooling with precise temperature control. Maintaining this temperature control can be achieved through several industrial practices,…