Conventional ethylene production via steam cracking of ethane or naphtha leads to the emission of 1 ton of CO2 for every ton of ethylene produced. Given the carbon intensity of the process and the annual volume of ethylene produced (300…
A team of researchers at Iowa State University (ISU; Ames; www.iastate.edu) have developed a new bioreactor concept that streamlines production of value-added bioproducts at smaller scales by integrating three process steps (fermentation, product extraction and separation) into a single, compact…
Textile waste is one of the fastest-growing waste streams globally, and there are limited options available to efficiently recycle end-of-life textiles into useful materials. A new recycling approach developed by Renasens (Stockholm, Sweden; www.renasens.com) utilizes supercritical CO2 to recover intact…
Ammonia is a critical input for agricultural fertilizers, but NH3 production is plagued by volatile prices, difficult global logistics and high CO2 emissions. A new NH3-production system from the startup TalusAg (Austin, Texas; www.talusag.com) addresses these challenges with a modular…
Over decades of experimentation, molten-salt nuclear reactors have been shown to deliver high-temperature heat and extremely efficient electricity at reduced pressures. However, these reactors have yet to make the leap into widespread industrial adoption. Terrestrial Energy Inc. (Charlotte, N.C.; www.terrestrialenergy.com)…
A process for making pigments from cellulose for use in cosmetics, food and coatings applications has scaled up from a 1-ton/yr pilot unit to a process capable of generating multiple-hundreds of tons per year in a toll-manufacturing setting. The cellulose-derived…
Ammonia cracking, decomposing ammonia into its constituent nitrogen and hydrogen molecules, is gaining traction as an emerging source for cleaner hydrogen. However, this reaction is very endothermic and requires heat and high temperature. In a proprietary technology developed by Duiker…
Nanomox (London, U.K.; www.nanomox.net) has invented a synthesis platform for metal oxides where multifunctional ionic liquids enable high selectivity for specialized morphologies. While the technology can be tailored for a large number of metals, the company is currently targeting zinc…
Minimizing cost is the key parameter for the viability of direct-air-capture (DAC) systems that remove carbon dioxide from the atmosphere. The startup company Sustaera Inc. (Research Triangle Park, N.C.; www.sustaera.com) has built a prototype DAC system that it says can…
A new approach to advanced recycling combines heterogeneous catalysis with electromagnetic induction, enabling the conversion of polyolefin-rich waste streams into versatile materials. Developed by bobine (Strasbourg, France; www.bobine-chemistry.com), this fully electric technology can help decarbonize the production of olefins like…