The propylene oxide issue
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Our company is considering a process for producing propylene oxide using acrylic acid and hydrogen peroxide, and has asked me to find some feasibility reports. However, I haven’t been able to locate any after searching for a long time; it seems that there are no established production facilities in China. I’m reaching out to everyone who may have knowledge or information on this topic, so we can discuss it together
Today I came across this news on the Haichuan Forum, and I’d like to share it with everyone. The R&D Institute of Sinopec Changling Branch (Hunan Changling Petrochemical Technology Development Co., Ltd.) is working on a project assigned by Sinopec’s headquarters: the use of hydrogen peroxide to oxidize propylene in order to produce propylene oxide. The project is currently carrying out a pilot scale test for 125 kg/h of propylene oxide. This project uses titanium-silica molecular sieves to catalyze the oxidation of propylene to produce propylene oxide; this is a green and clean new process, commonly referred to as the HPPO method. The reaction takes place under medium temperature, low pressure, and in liquid phase; methanol is used as the solvent, and titanium silicalite molecular sieves serve as the catalyst to oxidize propylene using hydrogen peroxide to produce propylene oxide. The titanium-silica molecular sieve catalyst is the core patented technology of this process; it enables high conversion rates and selectivity, with hydrogen peroxide being completely converted, and the unconverted propylene able to be recycled. The methanol solution is recycled after being distilled in a methanol distillation tower. The by-product of this process is water, which is pollution-free and offers good environmental benefits ； The atomic utilization rate is as high as 76.9% ； Solvent recycling ； The catalyst exhibits high activity and a long lifespan; the conversion rate is over 95%, with the conversion rate of hydrogen peroxide reaching 98%. Therefore, under certain conditions, it **reduces investment costs and energy consumption compared to the co-oxidation process**.
Is there still no industrial HPPO process for producing propylene oxide in the country yet?
We are also working on this, but we don’t understand many things about it. Could you provide me with some calculation details?
How is things going with you guys? Our company is working on TS-1, a titanium-silicon molecular sieve catalyst, and the evaluation results from European companies are very good. If you’re interested, we can exchange information! 13795382798