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Multiple users using by-product hydrogen gas (containing CL impurities) from chlor alkali plants have chosen our company's palladium titanium deoxygenation catalyst
Release time:
Mar 16,2023
The research on by-product hydrogen purification technology has solved the problem of recovering and purifying by-product hydrogen in chlor alkali plants. The research and utilization of by-product hydrogen purification devices can obtain high-purity product hydrogen, effectively improving the utilization rate of by-product hydrogen in chlor alkali industry. This not only reduces the environmental pollution caused by direct discharge of by-product hydrogen, but also brings huge economic benefits to chlor alkali enterprises. However, when the chlorine content in hydrogen gas is too high (≥ 0.001%), due to the reactivity of chloride ions and the variability of chlorine's chemical state, it has extremely strong electron capture properties and is easy to combine with precious metals, thereby disrupting the stable structure of surface activity, causing an increase in surface grain size and a decrease in surface area of the catalyst, resulting in the so-called "sintering" phenomenon of chlorine poisoning.
The 2000Nm3/h chlor alkali hydrogen purification project at a branch of Sinopec Group in Shandong was purchased in 2010 with a Pd/Al2O3 catalyst from a certain manufacturer. However, the purification effect did not meet the target after several months of operation, so hydrogen had to be purchased from nearby hydrogen manufacturers, which was expensive and dangerous to store. Afterwards, we contacted our company to purchase Pd/TiO2 catalysts, and technical personnel will conduct technical analysis and on-site driving guidance. The residual oxygen content after purification is ≤ 1PPM, and the purification indicators have remained normal and stable since continuous operation.
Recently, a biotechnology Co., Ltd. in Shandong Province has a length of 3000m ³/ The chlor alkali hydrogen purification project of H has also successfully signed a contract with our company, and it has been successfully put into operation in early May, with a product gas purity of over 99999.
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