How is hydrogen with a purity of around 99.8% produced?
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As the title suggests, for use at the food grade level in the hydrogenation of vegetable oils, what processes are generally employed? Could you provide some specific details? Thank you
1. Produced by electrolyzing water; with this method, virtually no further purification steps are required, and it can be used directly； 2. Produced by electrolyzing brine, in conjunction with hydrogen generated through the chlor-alkali process; the purity of hydrogen obtained by this method can be improved slightly through purification to meet the required standards for use ； 3. Industrial-grade pure hydrogen is generally produced through petrochemical or coal chemical methods, and it requires strict purification processes such as PSA.
If an individual uses a small amount of hydrogen, is it more economical to purchase bottled gas directly? Could you please let me know? Thank you
Of course, it’s convenient to buy directly, but safety management in the use of hazardous chemicals must be ensured.
When the hydrogen consumption is within a few thousand cubic meters per hour, skid-mounted methanol-to-hydrogen systems are relatively convenient and practical, and it is also possible to achieve a hydrogen purity of 99.999%. Many facilities have also been put into operation for producing hydrogen from methanol at rates of tens of thousands of cubic meters per hour.
Look at the volume – it’s generally not that large; it’s better to buy rather than produce
How much is needed? The amount of hydrogen required for the hydrogenation of vegetable oils shouldn’t be very large. We specialize in hydrogen production; if possible, we can provide you with detailed recommendations under suitable conditions