Latest News
Embracing a circular economy
Last month, for the first time, U.S. plastic resin producers publicly committed to measurable targets toward complete recovery and recycling of plastic packaging. The American Chemistry Council’s (ACC; www.americanchemistry.com) Plastics Division, which includes 15 of the leading resin manufacturers, announced…
ACHEMA Show Preview
Engineers from across the chemical process industries (CPI) will convene June 11–15 in Frankfurt am Main, Germany, for Achema 2018. Over 3,800 exhibitors will showcase some of the world’s newest equipment, services and technologies for the CPI, and a concurrent…
Highly selective adsorbent tackles complex sulfur species
To meet strict sulfur specifications and reduce emissions, amine scrubbing and caustic treatment are frequently used to remove hydrogen sulfide from gas and liquid streams, but these methods are not effective for handling more complex organo-sulfur compounds, such as thiophenes…
Biologically inspired denitrification catalyst
The development of denitrification catalysts that can reduce nitrate and nitrite to N2 is critical for sustaining the nitrogen cycle. However, regulating the catalytic selectivity has proven to be a challenge, due to the difficulty of controlling complex multi-electron/proton reactions.…
Harnessing the Joule-Thomson effect for treating wastewater with high salinity
A thermal-membrane process system, based on the Joule-Thompson effect (JTE) for treating wastewater with high salinity or with a high-level of inorganic contents has been developed by Thermosift Engineering Pvt. Ltd. (Asaripallam, Tamil Nadu, India; www.thermosift.com). The system operates at…
Chementator Briefs
C2H2 hydrogenation Last month, Clariant (Munich, Germany; www.clariant.com) launched OleMax 260, a new selective acetylene-hydrogenation catalyst, which is said to have extremely high ethylene selectivity and operational stability. Specially developed for ethylene producers with “front-end” process configurations, OleMax 260 offers…
A Pt-free electrode for making H2 from water
One of the major obstacles to making hydrogen economically by splitting water is the high cost of noble-metal electrodes. Less expensive, non-noble metals only function as electrocatalysts under alkaline conditions, where the reaction requires more electricity. Now, professor Ryoichi Ito…
This ‘smart’ wallpaper has built-in fire detection
Researchers from the Chinese Academy of Sciences (Beijing, China; www.cas.cn), led by professor Ying-Jie Zhu, have reported a “smart” fire-alarm wallpaper prepared using ultralong hydroxyapatite nanowires and graphene oxide thermosensitive sensors. At room temperature, the graphene-oxide sensor is an electrical…
Taking UV/O3 VOC treatment one cleaner step forward
Using ultraviolet (UV) radiation or ozone (or both) to oxidize air pollutants, such as volatile organic compounds (VOCs) is a well-established treatment method in the chemical process industries (CPI). What is not so well known, however, is that for most…
DeNOx catalyst operates at lower temperatures
Professor Toru Murayama at Tokyo Metropolitan University (Tokyo, Japan; www.haruta-masatake.ues.tmu.ac.jp), in collaboration with Chugoku Electric Power Co., Inc., has developed a vanadium oxide catalyst that removes oxides of nitrogen (NOx) from fluegas generated by the combustion of heavy fuel oil…