Latest Technologies
This single-pot reaction scheme could open the path to recycling used tires
Recycling vehicle tires is complicated because the rubbers used (including butadiene and polyisoprene) are highly cross-linked, and because pyrolysis-based recycling of the rubbers generates environmentally hazardous compounds like benzene and dioxins. Now, researchers at the University of North Carolina at…
Non-fluorinated coatings reach new heights with first oil- and water-repellent textile product
As industries and consumers have shown an increasing preference for water and oil repellents that do not include any fluorinated materials, significant efforts and years of research and testing have gone into developing non-fluorinated alternatives. AGC Chemicals Americas, Inc. (AGCCA;…
Direct cryo-compression of gaseous hydrogen: the “best of both worlds” between liquefaction and compression
Safe and cost-effective storage represents one of the major hurdles in the widespread adoption of “clean” hydrogen in energy applications. A hydrogen-storage approach called cryo-compression is being poised as a bridge between high-density (but expensive) hydrogen liquefaction and cheaper (but…
Molten-salt electrolysis process quickly scales up U.S. cobalt-refining capacity
A proprietary molten-salt electrolysis (MSE) process originally designed for battery manufacturing has now been re-optimized for North America’s first operational cobalt-refining plant. The DirectPlateTM MSE technology developed by Xerion Advanced Battery Corp. (Kettering, Ohio; www.xerionbattery.com; see Direct molten-salt electroplating cuts…
This MOF selectively adsorbs CO2 from biogas and can be regenerated under mild conditions
Biogas — produced from anaerobic digestion of organic matter — contains a mixture of gases, with methane and carbon dioxide as the predominant components. To use biogas as a fuel source, purification of the gas is typically needed to remove…
First-of-its-kind project converts datacenter waste heat into biomass
Data4 (Paris, France), leading European datacenter operator, and the Fondation de l’Université Paris Saclay announced the launch of a groundbreaking proof-of-concept project aimed at transforming heat from its servers into biomass. This ambitious project, deployed at its Marcoussis, France site,…
Chlor-Alkali Process Systems
Design considerations to ensure a safe, effective piping system A naturally occurring element, chlorine serves as the basic building block for some of the most critical health and safety items used in everyday life, such as drinking water treatment, waste…
Industrial water reuse and recycling
Why measurement matters when every drop counts Considering the growing global demand for freshwater, industries worldwide are increasingly turning to water recycling and reuse technologies as vital components of their sustainability strategies. Technology advancements are driving the ability to recycle…
Co-Current vs. Counter-Current Spray in Gas Cooling Applications
A CFD-Based Performance Analysis Cooling hot gas is necessary in many industrial processes to protect equipment and ensure employee safety. Daniel deLesdernier, Advanced Spray Engineering Services Manager at BETE, presents a computational fluid dynamics (CFD)-based analysis of co-current and counter-current…
Selective silica removal makes for better bauxite beneficiation
The extraction of alumina from bauxite is significantly impacted by the silica content of the ore — specifically the presence of silica in kaolinite (Al2Si2O5(OH)4). This is because traditional bauxite-beneficiation methods, such as washing, flotation and particle-size separation, also typically…