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Processing & Handling

‘Symbiotic’ electrolyzer runs on waste heat

A new steam-fed electrolyzer aims to bridge the gap between liquid-water electrolyzers, many of which require exotic materials and intricate membranes, and solid-oxide electrolyzers, which require superheated steam and temperatures as high as 800°C. This ‘symbiotic’ electrolyzer, developed by Advanced…

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Iron catalyst shows promise for improving economics of metathesis reactions

The olefin metathesis reaction produces new carbon-carbon double bonds by swapping the carbon atoms in olefins, and is important for producing a number of chemicals. Currently, the most popular catalysts for this reaction are made from the precious metal ruthenium…

Recycling Portland cement — emissions-free

The production of clinker used for making cement continues to be a major source of global CO2 emissions. Now, three engineers from the University of Cambridge (U.K.; eng.cam.ac.uk) have filed a patent and been awarded new research funding for their…

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Facts At Your Fingertips: Alternating-Current Induction Motors

Alternating-current (a.c.) induction motors are widely used throughout the chemical process industries (CPI) and other manufacturing sectors to convert electrical energy into mechanical energy to power rotating equipment, such as centrifugal pumps, compressors and fans, as well as other industrial…

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Materials of Construction: Stainless Steel Versus Nickel Alloys

Nickel alloys have long been the default choice for demanding applications in the chemical process industries (CPI). A new grade of stainless steel offers an alternative Demanding chemical engineering applications, such as plate heat exchangers (PHEs; Figure 1), tubing, pipes…

thyssenkrupp nucera wins major order to expand caustic soda plant for Kutch Chemical Industries in India

Thyssenkrupp nucera AG & Co. KGaA (Dortmund, Germany) will grant the license and supply proprietary equipment to the expansion plans of the caustic soda plant for Kutch Chemical Industries in Padana, Gujarat, India. The current plant is operating since 2020…

thyssenkrupp to build three major polymer plants for Merions in Turkey

Thyssenkrupp Industrial Solutions AG’ (Dortmund, Germany) subsidiary Uhde Inventa-Fischer signed a contract to build a new world-scale polymer plant for Merinos Hali Sanayi Ve Ticaret A.S., Turkey. The plant will use Uhde Inventa-Fischer’s proprietary patented MTR (Melt-to-Resin) technology to produce…

Relaunching a process that uses 100% H2 for the direct reduction of iron ore

Developed two decades ago, Metso Outotec’s (MO; Helsinki, Finland; www.mogroup.com) Circored process is now being reintroduced as a proven way to help decarbonize the ironmaking process. Developed in the 1990s by the former Lurgi Metallurgie (now part of MO) and…

Incorporating waste polyethylene into asphalt

An expanding number of products are demonstrating the real-world feasibility of incorporating post-consumer polyethylene (PE) into asphalt paving for roadways and parking lots. The set of demonstration projects — part of the New End-Market Opportunities (NEMO) program, under the auspices…

Recycling bauxite residues and electrowinning iron

Electrochem Technologies & Materials Inc. (Montreal, Canada; www.electrochem-technologies.com) produced pure electrolytic iron (99.995% Fe) using its patented FerWIN process (diagram) — a sustainable zero-carbon iron-making technology — from ferrous sulfate heptahydrate (copperas) originating from the sulfation of bauxite residues. This…