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S
triving to make products and processes safer, more efficient,
more sustainable, more economical and more environmentally
friendly has long been the goal of research and applied scientists
and engineers. For the past 28 years, new and innovative
" green " chemistry technologies have been recognized by the Green
Chemistry Challenge Awards. The U.S. Environmental Protection
Agency (EPA; www.epa.gov) recently announced this year's winners.
Submissions were judged by an independent panel of technical
experts convened by the American Chemical Society Green Chemistry
Institute (ACS; www.acs.org), who made recommendations to
the EPA. Award recipients were recognized on September 26 in New
York City. The following are the 2024 winners (Source: EPA):
Greener Synthetic Pathways - Merck & Co., Inc. (Rahway, N.J.;
www.merck.com) was recognized for its development of a continuous
process for manufacturing pembrolizumab, tradenamed KEYTRUDA®.
Pembrolizumab works by increasing the ability of the body's
immune system to help detect and fight tumor cells. Typically, this type
of protein is made in batches. Merck developed a continuous process
that removes the protein from the producing cells continuously rather
than by batch filtration. This allows smaller equipment to be used, reduces
energy and water use and thereby reduces emissions.
Design of Safer and Degradable Chemicals - This award went to
Pro Farm Group (Davis, Calif.; www.profarmgroup.com), a subsidiary
of Bioceres Crop Solutions, for its microbial pesticide, Rinotec™, which
is based on a microbe with natural pesticidal effects. After growing the
microbe in large vessels, it is killed and used in a treatment to coat
seeds prior to planting. The company says the product is biodegradable
and can replace several commonly used synthetic pesticides. Pro
Farm Group engineered its fermentation process to increase production
of the key pesticidal metabolite, which allows for a substantially
reduced application rate compared to a previous product, reducing the
amount of product released into the environment.
Specific Environmental Benefit - Climate Change - PhoSul®
(Sugar City, Idaho; www.phosul.com) received this award for developing
an enhanced phosphate rock fertilizer. Phosphate that is usable
by plants as a fertilizer is currently produced from phosphate rock
that is processed with acids. The process produces a gypsum waste
stream that contains heavy metals. PhoSul has developed a method
to use phosphate rock directly by enhancing it with other materials.
The additives allow the phosphate in the rock to be converted into
forms that are available to plants in the soil without the use of acids,
thus avoiding associated hazardous wastes and emissions.
Academic Category - University of Delaware (Newark, Del.; www.
udel.edu) chemical and biomolecular engineering professor Dionisios
Vlachos was recognized for developing new synthetic methods to
produce lubricant base oils from plant or food waste biomass instead
of petroleum-based feedstocks. The innovative process uses sugars
as a starting point and a solid catalyst, which allows
milder reaction conditions compared to existing
bio-based lubricant production.
Small Business Award - This award went to
Viridis Chemical Co. (Columbus, Neb.; www.
viridischemical.com) for developing a catalyst and
process to produce ethyl acetate from corn instead
of from coal or methane feedstocks. The process
also produces H2 gas as a byproduct, which can
be used in energy generation.
■
Dorothy Lozowski, Editorial Director
4
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
NOVEMBER 2024
Innovations in 'green' chemistry
http://www.epa.gov http://www.acs.org http://www.merck.com http://www.profarmgroup.com http://www.phosul.com http://www.udel.edu http://www.viridischemical.com http://www.accessintel.com http://WWW.CHEMENGONLINE.COM
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