Subsequent treatment of reformed hydrogen
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For the further treatment of reformed hydrogen, some methods involve purification through membrane technology; are there any other ways in which it is processed? ?
This is a PSA unit that uses pressure swing adsorption for purification, and most units employ this method. Membrane adsorption and re-purification of PSA exhaust gases
We all use PSA purification, achieving a purity level of 99.999%; this purity level meets the requirements of the vast majority of customers
It mainly depends on your subsequent requirements for hydrogen purity. . . PSA or VPSA can be considered. . . The purity of membrane recovery is not very high. .
After PSA exhaust gas is recovered through membranes, what is the purity of the hydrogen that can be obtained? ? How much hydrogen can be recovered? ?
Hydrogen purification PSA process is common
PSA: However, liquid carryover in the hydrogen reformation section here is severe
The key is to control the temperature after cooling; if this temperature is above 15°C, light components will be carried along. That’s why there is more liquid present in summer and less in winter
The key point is that the C3C4 content in the non-permeate gas after hydrogen purification is an important component of liquefied gas; it would be a waste to burn it away. Therefore, figuring out how to recover the C3C4 from this non-permeate gas is the core of my question