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Separation Processes

Simultaneous desalination and decontamination of water

The purification of seawater and wastewater for agriculture and human consumption is becoming increasingly important in water-scarce regions. Along with the removal of salt, rendering ocean water and wastewater suitable for humans and plants also involves removal of elements that…

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Facts At Your Fingertips: Evaporator Equipment Types

Industrial evaporator heat-transfer surfaces are either tubular or flat plates, packaged into a variety of evaporator types, as outlined here. Batch evaporators Batch evaporators are vessels with a heating jacket or internal coil, an overhead condenser, a condensate receiver, and…

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Controlling Air Pollution with Ceramic Catalytic Filters

Catalyst-impregnated ceramic filter elements can achieve simultaneous removal of multiple air-pollutant species in a modular, space-saving layout The three most common pollutants found in the air we breathe are particulate matter (PM), nitrogen oxides (NOx) and sulfur oxides (SOx). These…

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Addressing Problems in Filtration Processes

Careful attention to even the smallest details will help to prevent operational problems in filtration processes Filtration operations are widely used to achieve effective solid-liquid separations in the chemical process industries (CPI). Industrial filtration installations can involve a variety of…

Bookshelf March 2021: Recently Published Books for the CPI

The following is a list of recently published books that may be relevant for professionals in the chemical process industries (CPI) Digital Transformation for the Process Industries: A Roadmap. By Osvaldo Bascur (edited by Jim O’Rourke), CRC Press, 2021, 320…

LLE technology closes the loop on phenol removal

Many industrial processes involve phenol, but its toxic nature means that it must be effectively removed from waste streams prior to any subsequent biological treatment steps. Phenol can be removed via evaporation, but this method is quite energy-intensive. Alternatively, the…

Separate xylene isomers with less energy

Xylene isomers are usually derived from the catalytic reforming of crude oil, and require costly methods to separate them from each other, including distillation, fractional crystallization and adsorption in high-temperature and high-pressure environments. “The separation of xylene’s isomers requires much…

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Crystallization: Contributing to Circularity

In a variety of industrial applications, crystallization technologies contribute to the circularity of manufacturing processes and supply chains Crystallization is a major unit operation in the chemical process industries (CPI), typically used for separating and purifying materials in a wide…

Extracting zinc from flyash

In Sweden, incineration of household waste in waste-to-energy (WtE) plants is common, and generates around 250,000 metric tons (m.t.) of flyash every year. The rest of Europe accounts for around ten times that amount. Most of this waste is landfilled,…

Recently Published Books for the CPI: January 2021

The following is a list of recently published books of potential interest for CPI professionals   Digital Transformation for the Process Industries: A Roadmap. By Osvaldo Bascur and PJ O’Rourke, CRC Press, 2021, 320 pages, $130.00. Data Science in Chemistry:…