Industrial heat pumps (diagram) are a relatively mature technology that converts low-temperature waste heat into a more usable heat at a higher temperature (above the “pinch point”). However, the technology has been limited to applications of up to 100°C. Now,…
Researchers from the Biological Systems Unit at the Okinawa Institute of Science and Technology Graduate University (OIST; Japan; www.oist.jp) have developed a bioelectrochemical system that uses bacterial communities to break down organic material from raw wastewater, and removes both nitrates…
Redox flow batteries (RFBs) are a promising alternative to lithium-ion batteries for storing large quantities of renewable energy (see Chem. Eng., September 2016, pp. 14–20), but they have always been too expensive for the mass market. Now, researchers at the…
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…
Technologies designed to capture and store CO2 emissions from industrial operations are rapidly gaining traction, but finding ways to economically utilize the captured CO2 has posed challenges. A team of engineers from the University of California Los Angeles’ (UCLA; www.ucla.edu)…
An effort is underway to establish an environmentally friendly supply of rare-earth elements (REEs) from waste streams in the U.S. The project, undertaken by American Resources Corp. (Fishers, Ind.; www.americanresourcescorp.com), is focused on re-positioning assets from the coal industry to…
Conventional propane dehydrogenation (PDH) is an endothermic, equilibrium-limited reaction that requires high temperatures to achieve commercially viable per-pass yields of propylene. Oxidative propane dehydrogenation has the potential to form propylene at much lower temperatures and more selectively by controlling the…
TeselaGen Biotechnology (San Francisco, Calif.; www.teselagen.com) has developed a platform technology that integrates software and services, while taking advantage of artificial intelligence (AI) by applying machine-learning algorithms to reduce the costs and time required for the development of biologically derived…
Typically, to achieve the high graphite purity levels demanded by lithium-ion battery (LIB) applications, processors depend on hydrofluoric acid to remove silica impurities. Now, a new graphite-purification technology that eliminates the use of highly corrosive and toxic HF is being…
Kaji Technology Corp. (Osaka; www.kajitech.com) and Toray Industries, Inc. (Tokyo, both Japan; www.toray.com) have jointly completed developing and demonstrating an electrochemical hydrogen pump system earlier this year. This effort was part of a project, funded by the New Energy and…