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In the continuous 220-hour "endurance" test, the aerobic dehydrogenation process catalyzed by this new type of zeolite molecular sieve maintained a selectivity of up to 83%, with a conversion rate of 32.
9% to 43.
7%, and various performances were stable.
Looking around, polypropylene plastic bottles, crystal clear "plexiglass", and even daily necessities such as baby's diapers are all products of propylene deep processing.
Coupled with the global outbreak of new crown pneumonia, the consumption of masks has risen sharply, and its upstream raw material propylene has also been tight.
In 2020, the global use of propylene has reached 116 million tons.
Transfer from: National Petroleum and Chemical Network
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