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Chemical Engineering

Utilizing carbon dioxide

Reducing carbon dioxide emissions has taken center stage in efforts to reduce concentrations of greenhouse gases in the environment. Much effort is going into limiting the use of fossil fuels through increased use of renewable energy sources, switching to alternate…

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Recycling process allows fast depolymerization of post-consumer mixed textiles

Recycling rates for post-consumer textile waste are very low (<0.5%) because the fabrics often consist of tightly interlaced synthetic and natural fibers that require costly sorting and separation processes, and because they often contain dyes and additives that must be…

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First industrial demonstration of plasma-based CO2 conversion

Plasma technology is being explored as an avenue for many molecular conversions, such as methane reforming. Now, for the first time, a plasma-based CO2-conversion technology is being demonstrated industrially. The proprietary technology, developed by D-CRBN (Antwerp, Belgium; www.d-crbn.com), is being…

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Biofuels production via co-fermentation of sugar and CO2 takes a step forward

Co-fermentation processes that can consume both sugars and CO2 are emerging as a promising technology to enhance product yield and reduce emissions in biofuels production. A team of scientists at Oklahoma State University (Stillwater, Okla.; www.okstate.edu) are working to accelerate…

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Generalizable deep-learning technique for elucidating catalyst reaction mechanisms

Artificial intelligence techniques have great potential in generating insights into catalytic reaction mechanisms, opening the door to more selective and efficient catalysts. However, using machine-learning (ML) in a general way to study chemical reactions is challenging because broad approaches aimed…

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Two-dimensional template increases stability of perovskite photovoltaics

Using halide perovskites for photovoltaic (PV) solar-energy cells could dramatically reduce production costs compared to silicon-based PV cells, because perovskites are solution-processible at relatively low temperatures. However, long-term stability of these materials has been a significant challenge. Now, a research…

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This electrolysis reactor requires no external electricity source

Electrolyzers are the key technology for producing “green” hydrogen using renewable energy. However, a new reactor platform aims to facilitate electrolysis without the need for any external electricity. The Electroless Coupled Exchange Reduction Oxidation technology platform (eXERO), developed by Utility…

PPG agrees to sell silicas business for $310 million

PPG (Pittsburgh, Pa.) announced that it has reached a definitive agreement to sell its silicas products business for approximately $310 million in pre-tax proceeds to QEMETICA S.A., a Warsaw, Poland-based, privately held manufacturer of soda ash, silicates and other specialty…

Evonik completes methionine capacity expansion in Singapore

Evonik Industries AG (Essen, Germany) announced that its expansion of MetAMINO (DL-methionine) production facilities in Singapore has been completed. The MetAMINO production on Jurong Island is again running at full capacity, after shutdowns in Q4/2023 and Q2/2024. The production capacity…

ABB to acquire continuous emission monitoring specialist Födisch Group

ABB Ltd. (Zurich, Switzerland) announced that it has signed an agreement to acquire Födisch Group, a leading developer of advanced measurement and analytical solutions for the energy and industrial sectors. The acquisition enhances ABB’s offering in continuous emission monitoring systems…