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Solids Handling

Effective Dust Collection: Capturing Dust and Accounting for Loading

Three of the critical aspects of dust collection systems are properly identifying necessary dust capture points, effectively capturing dust at each point and accounting for solids loading in the ductwork. Key considerations for these aspects are presented here Dust collection…

Solids’ Characteristics and the Drying Process

Understanding material characteristics is important in designing and defining process criteria for optimal performance of rotary and fluidized-bed dryers The ability to efficiently, reliably and consistently dry bulk solids in an industrial setting relies largely on tailoring the dryer’s design…

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Facts At Your Fingertips: Representing Particle Size and Geometry

Particle size and shape, as well as particle size distribution (PSD) are key determinants of bulk solids behavior [1–4]. A particle can be defined as a single unit of material having discrete physical boundaries that define its size. Particle science…

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Effectively Discharging Solid Materials from Storage Bins and Silos

When considering the use of a silo discharge system to help convey materials, it is crucial to assess the specific requirements of the materials being stored, the operational goals and the overall system compatibility Storing and handling dry bulk powders…

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Calibration of Weighing Instruments

A guide to the practical considerations of calibrating weighing instruments is presented here Throughout the chemical process industries (CPI), weighing instruments find a range of important uses and are often a critical piece of equipment for many processes. Monitoring feed…

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Optimization of Spray Drying with Exhaust-Gas Recirculation

Energy recovery in spray-drying processes can reduce production costs, but involves trade-offs. Using milk powder as an example, this article describes a spreadsheet method to evaluate exhaust-gas recirculation scenarios for optimizing spray drying Dairy processing is among the most energy…

Recently Published Books for the CPI: November 2023

The following is a selection of recently published books with relevance to parts of the chemical process industries (CPI) Integrated Process Modeling, Advanced Control and Data Analytics for Optimizing Polyolefin Manufacturing. By Y.A. Liu and Niket Sharma, Wiley-VCH Publishing, 2023,…

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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…

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”…